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Selamat para pembaca Blog pbsstainmeto.blogspot.com ini, kali ini admin akan memposting artikel mengenai Contoh Karya Tulis Ilmiah/Makalah tentang Bahaya Merokok. Artikel ini berguna untuk melengkapi Tugas Sekolah atau Kuliah teman-teman semua. Semoga artikel ini dapat membantu.
 
 
 
 
BAB I
PENDAHULUAN
 
1.1.LATAR BELAKANG
Sangat ironis memang bahwa manusia sangat memperhatikan keseimbangan alam akibat proses pembakaran bahan bakar oleh industri yang mengeluarkan polusi, tetapi dilain pihak orang-orang dengan sengaja mengalirkan gas produksi pembakaran rokok ke paru-paru mereka.
 
Kebiasaan merokok telah menjadi budaya diberbagai bangsa di belahan dunia. Mayoritas perokok diseluruh dunia ini, 47 persen adalah populasi pria sedangkan 12 persen adalah populasi wanita dengan berbagai kategori umur. Latar belakang merokok beraneka ragam, di kalangan remaja dan dewasa pria adalah faktor gengsi dan agar disebut jagoan, malahan ada salah satu pepatah menarik yang digunakan sebagai pembenar atas kebiasaan merokok yaitu `ada ayam jago diatas genteng, ngga merokok ngga ganteng`. Sedangkan kalangan orang tua, stres dan karena ketagihan adalah faktor penyebab keinginan untuk merokok.
 
Berbagai alasan dan faktor penyebab untuk merokok diatas biasanya kalah seandainya beradu argumen dengan pakar yang ahli tentang potensi berbahaya atas apa ditimbulkan dari kebiasaan merokok baik bagi dirinya sendiri, orang lain dan lingkungan. Harus diakui banyak perokok yang mengatakan bahwa merokok itu tidak enak tetapi dari sekian banyak pamflet, selebaran, kampanye anti rokok, sampai ke bungkus rokoknya diberi peringatan akan bahaya kesehatan dari rokok, tetap tak bisa mengubris secara massal berkurangnya kebiasaan merokok dan jumlah perokok
 
1.2.RUMUSAN MASALAH
Dari latar belakang yang telah kami uraikan maka masalah yang akan kami bahas:
1. Apa dampak dari merokok?
2. Zat apa yang terkandung di dalam dan yang paling berbahaya?
3. Upaya apa yang dilakukan bagi perokok di sekolah?
4. Apa aktor penyebab perilaku merokok pada remaja?
 
1.3.TUJUAN PENELITIAN
-Untuk mengetahui Bahaya merokok.
-Untuk mengetahui faktor – faktor penyebab perilaku merokok pada remaja.
-Untuk mengetahui apa itu rokok.
 
1.4.METODE PENELITIAN
Metode yang kami gunakan adalah:
-Deskriptif
-Kajian pustaka dilakukan dengan mencari literatur di internet da buku – buku panduan
 
1.5.SISTEMATIKA PENULISAN
BAB I PENDAHULUAN
1.1.Latar Belakang Masalah
1.2.Perumusan Masalah
1.3.Tujuan Penelitian
1.4.Metode Penelitian
1.5.Sistematika penulisan
 
 
 
BAB II
KERANGKA TEORI
2.1.Pengertian Rokok
2.2.Dampak dari merokok
2.3.Faktor penyebab merokok pada remaja
2.4.Upaya mengatasi rokok
 

- See more at: http://pbsstainmetro.blogspot.com/2014/02/contoh-karya-ilmiah-tentang-bahaya.html#sthash.XkzUdR3z.dpuf

CONTOH KARYA ILMIAH TENTANG BAHAYA MEROKOK

saco-indonesia.com, Mantan gelandang tengah Juventus, Marco Tardelli, juga menyebut bahwa eks klubnya itu telah memiliki kans besar dan wajib untuk bisa memenangkan Europa League musim ini.

Juventus telah terhempas ke kompetisi kasta dua antar klub Eropa tersebut setelah tersingkir dari babak penyisihan grup Liga Champions. Tardelli percaya bahwa Il Bianconeri juga harus bermain seserius mungkin untuk dapat menjadi juara Eropa, meski di level yang berbeda.

"Europa League adala kompetisi yang harus dimenangkan oleh Juventus, tanpa ada keraguan," tuturnya pada Radio Sportiva.

" Mereka dominan di Italia, namun saya pikir kita semua setuju ke mana Scudetto akan mengarah musim ini, mengingat Juventus kini juga akan bersaing melawan Roma," tutup Tardelli.

Juventus saat ini ada di puncak klasemen sementara Serie A.


Editor : Dian Sukmawati

JUVENTUS WAJIB UNTUK MEMENANGKAN EUROPA LEAGUE

Untuk dapat menentukan harga besi beton per lonjor/batang, biasanya yang telah menjadi patokan adalah harga besi beton per kg. Karena harga besi beton per kg lebih mudah diingat, dan biasanya telah menjadi patokan untuk dapat menentukan harga. Dengan mengalikan berat per batang dalam tabel berat besi beton, dengan harga per kg tersebut, maka kita akan bisa mengetahui harga per batang atau per lonjornya. Saat tidak membawa tabel atau juga tidak ingat berat per batangnya, kita bisa menghitung beratnya sesuai dengan rumus menghitung berat besi beton.

Pada umumnya untuk dapat menentukan harga jual besi beton, dihitung berdasarkan lonjor / batang, karena bisa dipastikan jumlahnya. Sedangkan dalam satu lonjor dengan lonjor yang lain ada selisih berat meskipun sedikit. Sehingga untuk mudahnya dihitung harga per batang.

Selain untuk dapat memudahkan dalam mengingat harga, harga besi beton sering berubah, naik atau turun, yang berbahnya itu bisa dalam hitungan hari atau jam. Ganti hari harga besi beton bisa berganti. Atau bahkan bisa jadi harga pada sore hari berbeda dengan harga saat paginya. Dan tentu dengan menjadikan patokan harga per kg sebagai acuan, maka akan lebih mudah mengkomunikasikan perubahan harga itu pada sesama sales atau bagian marketing dan bagian lain yang terkait dalam perusahaan. Dan juga untuk menginformasikan pada pelanggan, jika ada perubahan harga. Kita tinggal memberitahukan berapa harga per kg. Kemudian bagian lain atau pelanggan itu menghitung sendiri sesuai dengan tabel berat besi beton.

Harga per kg dari besi beton, biasanya dibedakan untuk besi beton polos (BjTP24), dan besi beton ulir (BjTS40). Ada juga perbedaan harga untuk ukuran besar dan ukuran kecil. Misalnya diameter 16 kebawah lebih murah sedangkan ukuran diameter 19 keatas. Perbedaan harga besi beton per kg, untuk masing-masing ukuran itu biasanya disebabkan karena yield yang berbeda dari proses produksinya. Ukuran besar yieldnya lebih kecil karena sisa potong (afalan) lebih besar prosentasenya.

 

HARGA BESI BETON PER KG

Setiap rumah biasanya telah memiliki sofa diruang keluarga ataupun di ruang tamu. Sofa yang telah terawat baik dan bersih akan dapat membuat ruangan terlihat lebih menarik dan telah memberikan kesan yang baik untuk pemilik rumah. Karena Image si pemilik rumah dipertaruhkan, sofa juga harus dibersihkan secara berkala. Repot? Tentu saja tidak. Untuk dapat membersihkan sofa,Anda hanya perlu melakukan langkah-langkah mudah berikut ini.
Cara bersihkan Sofa Kulit Oscar

Pertama,campurkan deterjen dengan air hingga berbusa. Sikat sofa dengan sikat halus atau sikat gigi di bagian sofa yang kotor dengan halus dengan busa dari air deterjen tersebut. Setelah terasa bersih,keringkan sofa dengan lap kering dengan cara ditekan-tekan atau dijemur. Untuk campuran pembersih,Anda juga dapat mencampurkan sedikit cuka di campuran deterjen air.

Apabila takut deterjen atau cuka akan merusak sofa, maka sebaiknya di coba dahulu di bagian belakang atau pojok yang tidak terlihat.
Cara bersihkan Sofa Kain

Sofa kain sangat berbeda cara memberihkannya dengan sofa oscar. Sofa kain memang lebih gampang kotor tetapi sofa kain lebih mudah di bersihkan, yakni hanya dengan vacum cleaner. Untuk orang yang alergi debu, sebaiknya sofa divacumm setiap hari agar tidak ada debu yang menempel di permukaan sofa.

Cara bersihkan Sofa Kulit Asli

Karena sofa berbahan kulit asli jauh lebih mahal dari pada bahan sofa lainnya, sebaiknya untuk dapat membersihkan sofa jenis ini digunakan cairan pembersih khusus kulit. Cairan ini juga dapat dibeli di toko yang menjual bahan-bahan kulit ataupun di supermarket.

Semua cara membersihkan sofa di atas dapat dilakukan sendiri dirumah dengan pengeluaran biaya atau harga yang murah, sehingga Anda tidak perlu memanggil tukang untuk membersihkan sofa secara khusus. Tetapi apabila sofa Anda telah rusak sedikit dan membutuhkan ganti kain atau service sofa lainnya, silahkan hubungi Subur Furniture karena kami juga telah memberikan jasa mengganti kain, oscar ataupun kulit untuk sofa lama kesayangan Anda dengan harga yang murah.

Selain untuk rumah terlihat lebih rapi, bagus, dan terawat, sofa yang bersihpun juga akan membuat anak kita yang tidur diatas sofa lebih pulas dan aman. Jadi tips untuk membersihkan sofa ini boleh dishare untuk teman-teman yang lain agar tamu yang datang atau keluarga yang pakai sofa dapat duduk dengan bersih.

 

CARA MUDAH MEMBERSIHKAN SOFA

saco-indonesia.com, Kanker Payudara juga merupakan penyakit yang dapat disebabkan oleh sel ganas (kanker) yang tumbuh pada jaringan payudara. Sel-sel ini biasanya akan muncul pada saluran atau lobula di payudara. Sel-sel kanker ini juga dapat menyebar di antara jaringan atau organ yang ada dan ke bagian tubuh lainnya.

Seberapa umumkah Kanker Payudara?

Kanker Payudara juga merupakan penyebab kematian kedua terbesar bagi wanita saat ini. Di Singapura, 1 dari 16 wanita akan terdiagnosa mengidap kanker payudara dalam masa hidupnya. Wanita etnis Cina telah memiliki resiko yang lebih tinggi jika dibandingkan dengan etnis Melayu atau India sekitar 10% hingga 20%. Kasus tertinggi telah terjadi pada kelompok umur 55-59 tahun. Resiko terkena kanker payudara meningkat seiring bertambahnya usia. Kabar baiknya sekarang adalah banyak wanita kini mampu untuk melawan kanker payudara karena telah melakukan pendeteksian dini serta peningkatan kualitas pengobatan.

Apa Penyebabnya?

Faktor pemicu kanker ini belum dapat diketahui. Namun hal ini juga bisa ditelusuri dari sejarah keluarga yang telah mengidap kanker payudara, siklus menstruasi dini, atau kemungkinan faktor resiko lainnya. Karena begitu sulit untuk dapat dipastikan, masing-masing kita telah memiliki resiko terkena kanker payudara, khususnya saat kita berusia 40 tahun atau lebih. Walaupun faktor penyebabnya masih tidak diketahui, akan tetapi penyembuhan total sangat dimungkinkan dengan pendeteksian dini melalui pemeriksaan payudara secara reguler.
 
Diagnosa & Pemeriksaan

Bagaimana cara mendiagnosa?

Pemeriksaan Klinis – Khususnya bila benjolan, keluarnya cairan dari puting, atau perubahan payudara yang tidak biasa terjadi.

Mamogram – Metode ini juga dapat mendeteksi perubahan seperti kepadatan yang tidak normal atau terjadinya deposit kalsium.

Ultrasound Scan – Metode ini juga digunakan untuk dapat mendeteksi pada area khusus yang telah ditemukan dalam pemeriksaan mamogram atau dapat dilakukan untuk dapat mendeteksi kondisi abnormal yang tidak terlihat pada mamogram. Sebuah ultrasound scan juga dapat membedakan antara massa yang solid, yang kemungkinan kanker, atau kista yang berisi cairan yang biasanya bukan merupakan kanker.

Magnetic Resonance Imaging, MRI – Pada beberapa kasus, pasien harus menjalani sken MRI untuk dapat memperoleh hasil pemeriksaan yang lebih jelas pada area yang diduga terkena kanker. Metode ini juga sangat berguna bagi wanita yang berusia muda karena pada usianya mereka memiliki kepadatan jaringan payudara yang lebih besar dan tes visual konvensional seperti mamogram ataupun ultrasound menjadi kurang sensitif dan spesifik untuk mendeteksi kanker payudara.

          
Apa itu Biopsi?
          

Teknik biopsi umum

Untuk dapat memastikan kanker payudara, sebuah biopsi harus dilakukan di mana bagian dari jaringan sel yang diduga kanker diangkat dan diperiksa dengan mikroskop.
          

    Aspirasi Jarum Halus (FNA)
    Biopsi Jarum Inti (Core Needle) atau Biopsi Tru-cut
    Biopsi Eksisi (Excision Biopsy)

 
Bagaimana Kanker Payudara diperiksa?


A. TAHAPAN/LUAS PENYEBARAN
      TAHAPAN     LUAS PENYEBARAN     TINGKAT RATA-RATA KESELAMATAN PADA MASA
5-TAHUNAN(%)
      0     Kanker non-invasif     99
      I     Kanker invasif kecil
(kurang dari 2 cm tanpa penyebaran ke arah kelenjar getah bening aksila)     90
      II     

Kanker invasif
(antara 2-5cm atau/dengan penyebaran pada kelenjar getah bening)
    70
      III     Kanker invasif besar
(lebih dari 5cm dengan penyebaran pada kulit atau beberapa kelenjar getah bening)     40
      IV     

Penyebaran yang luas atau Kanker metastatis
    20


B. KARAKTERISTIK KANKER PAYUDARA YANG BERDAMPAK PADA KAMBUH DAN KESELAMATAN
Tingkat Histologis Tumor

Merujuk pada seberapa banyak sel tumor yang telah memiliki kemiripan dengan sel normal dilihat dari mikroskop; skala tingkat 1 sampai dengan 3. Tumor tingkat 3 mengandung sel kanker yang sangat abnormal dan tumbuh pesat. Semakin tinggi tingkat histologis tumor, semakin besar resiko kanker payudara kembali.
          
Kelenjar Getah Bening

Jumlah kelenjar getah bening yang berada di ketiak, di sisi yang sama pada payudara yang terkena kanker, bisa jadi indikator penting. Semakin besar jumlah kelenjar yang positif diasosiasikan dengan kemungkinan terburuk dan merujuk kepada perawatan dan pengobatan yang lebih agresif.
            
Ukuran Tumor

Secara umum, semakin besar ukuran tumor, semakin besar kemungkinan untuk kanker payudara kembali menyerang.
          
ER/PR

Sekitar duapertiga dari semua kanker payudara telah memiliki tingkat esterogen yang signifikan dan/atau reseptor progesteron. Mereka dirujuk sebagai tumor reseptor esterogen positif (ER+). Tumor ER+ cenderung tumbuh kurang agresif dan dapat diobati dengan pengobatan menggunakan hormon.
            
HER2/erbB2

HER2 adalah sebuah protein yang telah ditemukan pada permukaan dari sel kanker tertentu. Sebuah tumor juga dapat digambarkan sebagai HER2-positif apabila tumor tersebut telah memiliki lebih banyak reseptor HER2 dibanding dengan yang lain. Sekitar 20-25% dari semua kanker payudara memiliki tumor dengan label HER2-positif. Tumors HER2-positif cenderung tumbuh lebih cepat daripada jenis-jenis kanker payudara lainnya.

Dengan mengetahui apakah sebuah kanker adalah HER2-positif dapat mempengaruhi pilihan pengobatan yang dapat diambil, karena wanita dengan tumor sejenis ini dapat diuntungkan dengan obat yang disebut trastuzumab (Herceptin®).

 
Pengobatan & Perawatan

Bagaimana kanker payudara diobati?

Pilihan pengobatan dan prognosis (peluang kesembuhan) tergantung dari tahapan kanker (apakah kanker tersebut hanya ada di payudara atau sudah menyebar ke bagian tubuh lainnya), tipe kanker payudara, karakteristik dari sel kanker dan apakah kanker tersebut ditemukan pada sisi payudara yang lain. Usia seorang wanita, status menopausal (apakah wanita tersebut masih memiliki siklus haid) dan kondisi kesehatan umumnya juga dapat mempengaruhi pilihan pengobatan dan prognosis.
 
Bedah

Pembedahan adalah umum untuk mengangkat kanker. Beberapa bentuk prosedur bedah termasuk:

1)    Bedah dengan mempertahankan payudara

    Lumpektomi atau Wide Local Excision – pengangkatan kanker dan sedikit jaringan di sekitarnya.
    Quadrantektomi – pengangkatan kanker dengan mengangkat lebih banyak jaringan disekitarnya dibandingkan dengan lumpektomi. Untuk prosedur quadrantektomi, seperempat bagian dari payudara diangkat.

2)    Mastektomi – pengangkatan seluruh bagian payudara dengan atau tanpa jaringan kelenjar getah bening di bawah aksila.
 
3)    Saat bedah payudara, beberapa sel kelenjar getah bening di bawah ketiak juga akan diambil untuk pemeriksaan.

 
Terapi Sistemik

    Kemoterapi
    Terapi Hormon
    Herceptin®

 
          
Radioterapi

Radioterapi dengan menggunakan sinar berenergi tinggi yang ditargetkan untuk dapat membunuh sel-sel kanker. Tujuannya adalah untuk dapat membunuh sel kanker yang mungkin tersisa di sekitar payudara.

Radioterapi sangatlah vital setelah prosedur bedah yang mempertahankan payudara, seperti lumpektomi, karena sebagian besar jaringan payudara dibiarkan utuh. Terapi ini juga akan mengurangi kemungkinan kembalinya kanker payudara.

Pada umumnya, wanita yang telah menjalani prosedur masektomi tidak memerlukan radioterapi. Akan tetapi, untuk beberapa kasus, prosedur ini perlu dilakukan untuk dapat merawat dinding dada dan kelenjar getah bening yang ada pada ketiak, bila resiko kembalinya kanker secara lokal masih tinggi.


Editor : dian sukmawati

KANKER PAYUDARA

A 2-minute-42-second demo recording captured in one take turned out to be a one-hit wonder for Mr. Ely, who was 19 when he sang the garage-band classic.

Jack Ely, Who Sang the Kingsmen’s ‘Louie Louie’, Dies at 71

Public perceptions of race relations in America have grown substantially more negative in the aftermath of the death of a young black man who was injured while in police custody in Baltimore and the subsequent unrest, far eclipsing the sentiment recorded in the wake of turmoil in Ferguson, Mo., last summer.

Americans are also increasingly likely to say that the police are more apt to use deadly force against a black person, the latest New York Times/CBS News poll finds.

The poll findings highlight the challenges for local leaders and police officials in trying to maintain order while sustaining faith in the criminal justice system in a racially polarized nation.

Sixty-one percent of Americans now say race relations in this country are generally bad. That figure is up sharply from 44 percent after the fatal police shooting of Michael Brown and the unrest that followed in Ferguson in August, and 43 percent in December. In a CBS News poll just two months ago, 38 percent said race relations were generally bad. Current views are by far the worst of Barack Obama’s presidency.

The negative sentiment is echoed by broad majorities of blacks and whites alike, a stark change from earlier this year, when 58 percent of blacks thought race relations were bad, but just 35 percent of whites agreed. In August, 48 percent of blacks and 41 percent of whites said they felt that way.

Looking ahead, 44 percent of Americans think race relations are worsening, up from 36 percent in December. Forty-one percent of blacks and 46 percent of whites think so. Pessimism among whites has increased 10 points since December.

Continue reading the main story
Do you think race relations in the United States are generally good or generally bad?
60
40
20
0
White
Black
May '14
May '15
Generally bad
Continue reading the main story
Do you think race relations in the United States are getting better, getting worse or staying about the same?
Getting worse
Staying the same
Getting better
Don't know/No answer
All adults
Whites
Blacks
44%
37
17
46
36
16
41
42
15

The poll finds that profound racial divisions in views of how the police use deadly force remain. Blacks are more than twice as likely to say police in most communities are more apt to use deadly force against a black person — 79 percent of blacks say so compared with 37 percent of whites. A slim majority of whites say race is not a factor in a police officer’s decision to use deadly force.

Overall, 44 percent of Americans say deadly force is more likely to be used against a black person, up from 37 percent in August and 40 percent in December.

Blacks also remain far more likely than whites to say they feel mostly anxious about the police in their community. Forty-two percent say so, while 51 percent feel mostly safe. Among whites, 8 in 10 feel mostly safe.

One proposal to address the matter — having on-duty police officers wear body cameras — receives overwhelming support. More than 9 in 10 whites and blacks alike favor it.

Continue reading the main story
How would you describe your feelings about the police in your community? Would you say they make you feel mostly safe or mostly anxious?
Mostly safe
Mostly anxious
Don't know/No answer
All adults
Whites
Blacks
75%
21
3
81
16
3
51
42
7
Continue reading the main story
In general, do you think the police in most communities are more likely to use deadly force against a black person, or more likely to use it against a white person, or don’t you think race affects police use of deadly force?
Police more likely to use deadly force against a black person
Police more likely to use deadly force against a white person
Race DOES NOT affect police use of deadly force
Don't know/No answer
All adults
Whites
Blacks
44%
37%
79%
2%
2%
1%
46%
53%
16%
9%
8%
4%
Continue reading the main story
Do you favor or oppose on-duty police officers wearing video cameras that would record events and actions as they occur?
Favor
Oppose
Don't know/No answer
All adults
Whites
Blacks
92%
93%
93%
6%
5%
5%
2%
2%
2%

Asked specifically about the situation in Baltimore, most Americans expressed at least some confidence that the investigation by local authorities would be conducted fairly. But while nearly two-thirds of whites think so, fewer than half of blacks agree. Still, more blacks are confident now than were in August regarding the investigation in Ferguson. On Friday, six members of the police force involved in the arrest of Mr. Gray were charged with serious offenses, including manslaughter. The poll was conducted Thursday through Sunday; results from before charges were announced are similar to those from after.

Reaction to the recent turmoil in Baltimore, however, is similar among blacks and whites. Most Americans, 61 percent, say the unrest after Mr. Gray’s death was not justified. That includes 64 percent of whites and 57 percent of blacks.

Continue reading the main story
As you may know, a Baltimore man, Freddie Gray, recently died after being in the custody of the Baltimore police. How much confidence do you have that the investigation by local authorities into this matter will be conducted fairly?
A lot
Some
Not much
None at all
Don't know/No answer
All adults
Whites
Blacks
29%
31
22
14
5
31
33
20
11
5
20
26
30
22
In general, do you think the unrest in Baltimore after the death of Freddie Gray was justified, or do you think the unrest was not justified?
Justified
Not justified
Don't know/No answer
All adults
Whites
Blacks
28%
61
11
26
64
11
37
57
6

Negative View of U.S. Race Relations Grows, Poll Finds

HOBART, Tasmania — Few places seem out of reach for China’s leader, Xi Jinping, who has traveled from European capitals to obscure Pacific and Caribbean islands in pursuit of his nation’s strategic interests.

So perhaps it was not surprising when he turned up last fall in this city on the edge of the Southern Ocean to put down a long-distance marker in another faraway region, Antarctica, 2,000 miles south of this Australian port.

Standing on the deck of an icebreaker that ferries Chinese scientists from this last stop before the frozen continent, Mr. Xi pledged that China would continue to expand in one of the few places on earth that remain unexploited by humans.

He signed a five-year accord with the Australian government that allows Chinese vessels and, in the future, aircraft to resupply for fuel and food before heading south. That will help secure easier access to a region that is believed to have vast oil and mineral resources; huge quantities of high-protein sea life; and for times of possible future dire need, fresh water contained in icebergs.

It was not until 1985, about seven decades after Robert Scott and Roald Amundsen raced to the South Pole, that a team representing Beijing hoisted the Chinese flag over the nation’s first Antarctic research base, the Great Wall Station on King George Island.

But now China seems determined to catch up. As it has bolstered spending on Antarctic research, and as the early explorers, especially the United States and Australia, confront stagnant budgets, there is growing concern about its intentions.

China’s operations on the continent — it opened its fourth research station last year, chose a site for a fifth, and is investing in a second icebreaker and new ice-capable planes and helicopters — are already the fastest growing of the 52 signatories to the Antarctic Treaty. That gentlemen’s agreement reached in 1959 bans military activity on the continent and aims to preserve it as one of the world’s last wildernesses; a related pact prohibits mining.

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But Mr. Xi’s visit was another sign that China is positioning itself to take advantage of the continent’s resource potential when the treaty expires in 2048 — or in the event that it is ripped up before, Chinese and Australian experts say.

“So far, our research is natural-science based, but we know there is more and more concern about resource security,” said Yang Huigen, director general of the Polar Research Institute of China, who accompanied Mr. Xi last November on his visit to Hobart and stood with him on the icebreaker, Xue Long, or Snow Dragon.

With that in mind, the polar institute recently opened a new division devoted to the study of resources, law, geopolitics and governance in Antarctica and the Arctic, Mr. Yang said.

Australia, a strategic ally of the United States that has strong economic relations with China, is watching China’s buildup in the Antarctic with a mix of gratitude — China’s presence offers support for Australia’s Antarctic science program, which is short of cash — and wariness.

“We should have no illusions about the deeper agenda — one that has not even been agreed to by Chinese scientists but is driven by Xi, and most likely his successors,” said Peter Jennings, executive director of the Australian Strategic Policy Institute and a former senior official in the Australian Department of Defense.

“This is part of a broader pattern of a mercantilist approach all around the world,” Mr. Jennings added. “A big driver of Chinese policy is to secure long-term energy supply and food supply.”

That approach was evident last month when a large Chinese agriculture enterprise announced an expansion of its fishing operations around Antarctica to catch more krill — small, protein-rich crustaceans that are abundant in Antarctic waters.

“The Antarctic is a treasure house for all human beings, and China should go there and share,” Liu Shenli, the chairman of the China National Agricultural Development Group, told China Daily, a state-owned newspaper. China would aim to fish up to two million tons of krill a year, he said, a substantial increase from what it currently harvests.

Because sovereignty over Antarctica is unclear, nations have sought to strengthen their claims over the ice-covered land by building research bases and naming geographic features. China’s fifth station will put it within reach of the six American facilities, and ahead of Australia’s three.

Chinese mappers have also given Chinese names to more than 300 sites, compared with the thousands of locations on the continent with English names.

In the unspoken competition for Antarctica’s future, scientific achievement can also translate into influence. Chinese scientists are driving to be the first to drill and recover an ice core containing tiny air bubbles that provide a record of climate change stretching as far back as 1.5 million years. It is an expensive and delicate effort at which others, including the European Union and Australia, have failed.

In a breakthrough a decade ago, European scientists extracted an ice core nearly two miles long that revealed 800,000 years of climate history. But finding an ice core going back further would allow scientists to examine a change in the earth’s climate cycles believed to have occurred 900,000 to 1.2 million years ago.

China is betting it has found the best location to drill, at an area called Dome A, or Dome Argus, the highest point on the East Antarctic Ice Sheet. Though it is considered one of the coldest places on the planet, with temperatures of 130 degrees below zero Fahrenheit, a Chinese expedition explored the area in 2005 and established a research station in 2009.

“The international community has drilled in lots of places, but no luck so far,” said Xiao Cunde, a member of the first party to reach the site and the deputy director of the Institute for Climate Change at the Chinese Academy of Meteorological Sciences. “We think at Dome A we will have a straight shot at the one-million-year ice core.”

Mr. Xiao said China had already begun drilling and hoped to find what scientists are looking for in four to five years.

To support its Antarctic aspirations, China is building a sophisticated $300 million icebreaker that is expected to be ready in a few years, said Xia Limin, deputy director of the Chinese Arctic and Antarctic Administration in Beijing. It has also bought a high-tech fixed-wing aircraft, outfitted in the United States, for taking sensitive scientific soundings from the ice.

China has chosen the site for its fifth research station at Inexpressible Island, named by a group of British explorers who were stranded at the desolate site in 1912 and survived the winter by excavating a small ice cave.

Mr. Xia said the inhospitable spot was ideal because China did not have a presence in that part of Antarctica, and because the rocky site did not have much snow, making it relatively cheap to build there.

Anne-Marie Brady, a professor of political science at the University of Canterbury in New Zealand and the author of a soon-to-be-released book, “China as a Polar Great Power,” said Chinese scientists also believed they had a good chance of finding mineral and energy resources near the site.

“China is playing a long game in Antarctica and keeping other states guessing about its true intentions and interests are part of its poker hand,” she said. But she noted that China’s interest in finding minerals was presented “loud and clear to domestic audiences” as the main reason it was investing in Antarctica.

Because commercial drilling is banned, estimates of energy and mineral resources in Antarctica rely on remote sensing data and comparisons with similar geological environments elsewhere, said Millard F. Coffin, executive director of the Institute for Marine and Antarctic Studies in Hobart.

But the difficulty of extraction in such severe conditions and uncertainty about future commodity prices make it unlikely that China or any country would defy the ban on mining anytime soon.

Tourism, however, is already booming. Travelers from China are still a relatively small contingent in the Antarctic compared with the more than 13,000 Americans who visited in 2013, and as yet there are no licensed Chinese tour operators.

But that is about to change, said Anthony Bergin, deputy director of the Australian Strategic Policy Institute. “I understand very soon there will be Chinese tourists on Chinese vessels with all-Chinese crew in the Antarctic,” he said.

 

Top News China’s Intents Are Questioned as It Builds in Antarctica

Mr. Mankiewicz, an Oscar-nominated screenwriter for “I Want to Live!,” also wrote episodes of television shows such as “Star Trek” and “Marcus Welby, M.D.”

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Though Robin and Joan Rolfs owned two rare talking dolls manufactured by Thomas Edison’s phonograph company in 1890, they did not dare play the wax cylinder records tucked inside each one.

The Rolfses, longtime collectors of Edison phonographs, knew that if they turned the cranks on the dolls’ backs, the steel phonograph needle might damage or destroy the grooves of the hollow, ring-shaped cylinder. And so for years, the dolls sat side by side inside a display cabinet, bearers of a message from the dawn of sound recording that nobody could hear.

In 1890, Edison’s dolls were a flop; production lasted only six weeks. Children found them difficult to operate and more scary than cuddly. The recordings inside, which featured snippets of nursery rhymes, wore out quickly.

Yet sound historians say the cylinders were the first entertainment records ever made, and the young girls hired to recite the rhymes were the world’s first recording artists.

Year after year, the Rolfses asked experts if there might be a safe way to play the recordings. Then a government laboratory developed a method to play fragile records without touching them.

Audio

The technique relies on a microscope to create images of the grooves in exquisite detail. A computer approximates — with great accuracy — the sounds that would have been created by a needle moving through those grooves.

In 2014, the technology was made available for the first time outside the laboratory.

“The fear all along is that we don’t want to damage these records. We don’t want to put a stylus on them,” said Jerry Fabris, the curator of the Thomas Edison Historical Park in West Orange, N.J. “Now we have the technology to play them safely.”

Last month, the Historical Park posted online three never-before-heard Edison doll recordings, including the two from the Rolfses’ collection. “There are probably more out there, and we’re hoping people will now get them digitized,” Mr. Fabris said.

The technology, which is known as Irene (Image, Reconstruct, Erase Noise, Etc.), was developed by the particle physicist Carl Haber and the engineer Earl Cornell at Lawrence Berkeley. Irene extracts sound from cylinder and disk records. It can also reconstruct audio from recordings so badly damaged they were deemed unplayable.

“We are now hearing sounds from history that I did not expect to hear in my lifetime,” Mr. Fabris said.

The Rolfses said they were not sure what to expect in August when they carefully packed their two Edison doll cylinders, still attached to their motors, and drove from their home in Hortonville, Wis., to the National Document Conservation Center in Andover, Mass. The center had recently acquired Irene technology.

Audio

Cylinders carry sound in a spiral groove cut by a phonograph recording needle that vibrates up and down, creating a surface made of tiny hills and valleys. In the Irene set-up, a microscope perched above the shaft takes thousands of high-resolution images of small sections of the grooves.

Stitched together, the images provide a topographic map of the cylinder’s surface, charting changes in depth as small as one five-hundredth the thickness of a human hair. Pitch, volume and timbre are all encoded in the hills and valleys and the speed at which the record is played.

At the conservation center, the preservation specialist Mason Vander Lugt attached one of the cylinders to the end of a rotating shaft. Huddled around a computer screen, the Rolfses first saw the wiggly waveform generated by Irene. Then came the digital audio. The words were at first indistinct, but as Mr. Lugt filtered out more of the noise, the rhyme became clearer.

“That was the Eureka moment,” Mr. Rolfs said.

In 1890, a girl in Edison’s laboratory had recited:

There was a little girl,

And she had a little curl

Audio

Right in the middle of her forehead.

When she was good,

She was very, very good.

But when she was bad, she was horrid.

Recently, the conservation center turned up another surprise.

In 2010, the Woody Guthrie Foundation received 18 oversize phonograph disks from an anonymous donor. No one knew if any of the dirt-stained recordings featured Guthrie, but Tiffany Colannino, then the foundation’s archivist, had stored them unplayed until she heard about Irene.

Last fall, the center extracted audio from one of the records, labeled “Jam Session 9” and emailed the digital file to Ms. Colannino.

“I was just sitting in my dining room, and the next thing I know, I’m hearing Woody,” she said. In between solo performances of “Ladies Auxiliary,” “Jesus Christ,” and “Dead or Alive,” Guthrie tells jokes, offers some back story, and makes the audience laugh. “It is quintessential Guthrie,” Ms. Colannino said.

The Rolfses’ dolls are back in the display cabinet in Wisconsin. But with audio stored on several computers, they now have a permanent voice.

Ghostly Voices From Thomas Edison’s Dolls Can Now Be Heard

As he reflected on the festering wounds deepened by race and grievance that have been on painful display in America’s cities lately, President Obama on Monday found himself thinking about a young man he had just met named Malachi.

A few minutes before, in a closed-door round-table discussion at Lehman College in the Bronx, Mr. Obama had asked a group of black and Hispanic students from disadvantaged backgrounds what could be done to help them reach their goals. Several talked about counseling and guidance programs.

“Malachi, he just talked about — we should talk about love,” Mr. Obama told a crowd afterward, drifting away from his prepared remarks. “Because Malachi and I shared the fact that our dad wasn’t around and that sometimes we wondered why he wasn’t around and what had happened. But really, that’s what this comes down to is: Do we love these kids?”

Many presidents have governed during times of racial tension, but Mr. Obama is the first to see in the mirror a face that looks like those on the other side of history’s ledger. While his first term was consumed with the economy, war and health care, his second keeps coming back to the societal divide that was not bridged by his election. A president who eschewed focusing on race now seems to have found his voice again as he thinks about how to use his remaining time in office and beyond.

Continue reading the main story Video
Play Video|1:17

Obama Speaks of a ‘Sense of Unfairness’

Obama Speaks of a ‘Sense of Unfairness’

At an event announcing the creation of a nonprofit focusing on young minority men, President Obama talked about the underlying reasons for recent protests in Baltimore and other cities.

By Associated Press on Publish Date May 4, 2015. Photo by Stephen Crowley/The New York Times.

In the aftermath of racially charged unrest in places like Baltimore, Ferguson, Mo., and New York, Mr. Obama came to the Bronx on Monday for the announcement of a new nonprofit organization that is being spun off from his White House initiative called My Brother’s Keeper. Staked by more than $80 million in commitments from corporations and other donors, the new group, My Brother’s Keeper Alliance, will in effect provide the nucleus for Mr. Obama’s post-presidency, which will begin in January 2017.

“This will remain a mission for me and for Michelle not just for the rest of my presidency but for the rest of my life,” Mr. Obama said. “And the reason is simple,” he added. Referring to some of the youths he had just met, he said: “We see ourselves in these young men. I grew up without a dad. I grew up lost sometimes and adrift, not having a sense of a clear path. The only difference between me and a lot of other young men in this neighborhood and all across the country is that I grew up in an environment that was a little more forgiving.”

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Organizers said the new alliance already had financial pledges from companies like American Express, Deloitte, Discovery Communications and News Corporation. The money will be used to help companies address obstacles facing young black and Hispanic men, provide grants to programs for disadvantaged youths, and help communities aid their populations.

Joe Echevarria, a former chief executive of Deloitte, the accounting and consulting firm, will lead the alliance, and among those on its leadership team or advisory group are executives at PepsiCo, News Corporation, Sprint, BET and Prudential Group Insurance; former Secretary of State Colin L. Powell; Senator Cory Booker, Democrat of New Jersey; former Attorney General Eric H. Holder Jr.; the music star John Legend; the retired athletes Alonzo Mourning, Jerome Bettis and Shaquille O’Neal; and the mayors of Indianapolis, Sacramento and Philadelphia.

The alliance, while nominally independent of the White House, may face some of the same questions confronting former Secretary of State Hillary Rodham Clinton as she begins another presidential campaign. Some of those donating to the alliance may have interests in government action, and skeptics may wonder whether they are trying to curry favor with the president by contributing.

“The Obama administration will have no role in deciding how donations are screened and what criteria they’ll set at the alliance for donor policies, because it’s an entirely separate entity,” Josh Earnest, the White House press secretary, told reporters on Air Force One en route to New York. But he added, “I’m confident that the members of the board are well aware of the president’s commitment to transparency.”

The alliance was in the works before the disturbances last week after the death of Freddie Gray, the black man who suffered fatal injuries while in police custody in Baltimore, but it reflected the evolution of Mr. Obama’s presidency. For him, in a way, it is coming back to issues that animated him as a young community organizer and politician. It was his own struggle with race and identity, captured in his youthful memoir, “Dreams From My Father,” that stood him apart from other presidential aspirants.

But that was a side of him that he kept largely to himself through the first years of his presidency while he focused on other priorities like turning the economy around, expanding government-subsidized health care and avoiding electoral land mines en route to re-election.

After securing a second term, Mr. Obama appeared more emboldened. Just a month after his 2013 inauguration, he talked passionately about opportunity and race with a group of teenage boys in Chicago, a moment aides point to as perhaps the first time he had spoken about these issues in such a personal, powerful way as president. A few months later, he publicly lamented the death of Trayvon Martin, a black Florida teenager, saying that “could have been me 35 years ago.”

Photo
 
President Obama on Monday with Darinel Montero, a student at Bronx International High School who introduced him before remarks at Lehman College in the Bronx. Credit Stephen Crowley/The New York Times

That case, along with public ruptures of anger over police shootings in Ferguson and elsewhere, have pushed the issue of race and law enforcement onto the public agenda. Aides said they imagined that with his presidency in its final stages, Mr. Obama might be thinking more about what comes next and causes he can advance as a private citizen.

That is not to say that his public discussion of these issues has been universally welcomed. Some conservatives said he had made matters worse by seeming in their view to blame police officers in some of the disputed cases.

“President Obama, when he was elected, could have been a unifying leader,” Senator Ted Cruz of Texas, a Republican candidate for president, said at a forum last week. “He has made decisions that I think have inflamed racial tensions.”

On the other side of the ideological spectrum, some liberal African-American activists have complained that Mr. Obama has not done enough to help downtrodden communities. While he is speaking out more, these critics argue, he has hardly used the power of the presidency to make the sort of radical change they say is necessary.

The line Mr. Obama has tried to straddle has been a serrated one. He condemns police brutality as he defends most officers as honorable. He condemns “criminals and thugs” who looted in Baltimore while expressing empathy with those trapped in a cycle of poverty and hopelessness.

In the Bronx on Monday, Mr. Obama bemoaned the death of Brian Moore, a plainclothes New York police officer who had died earlier in the day after being shot in the head Saturday on a Queens street. Most police officers are “good and honest and fair and care deeply about their communities,” even as they put their lives on the line, Mr. Obama said.

“Which is why in addressing the issues in Baltimore or Ferguson or New York, the point I made was that if we’re just looking at policing, we’re looking at it too narrowly,” he added. “If we ask the police to simply contain and control problems that we ourselves have been unwilling to invest and solve, that’s not fair to the communities, it’s not fair to the police.”

Moreover, if society writes off some people, he said, “that’s not the kind of country I want to live in; that’s not what America is about.”

His message to young men like Malachi Hernandez, who attends Boston Latin Academy in Massachusetts, is not to give up.

“I want you to know you matter,” he said. “You matter to us.”

Obama Finds a Bolder Voice on Race Issues

The live music at the Vice Media party on Friday shook the room. Shane Smith, Vice’s chief executive, was standing near the stage — with a drink in his hand, pants sagging, tattoos showing — watching the rapper-cum-chef Action Bronson make pizzas.

The event was an after-party, a happy-hour bacchanal for the hundreds of guests who had come for Vice’s annual presentation to advertisers and agencies that afternoon, part of the annual frenzy for ad dollars called the Digital Content NewFronts. Mr. Smith had spoken there for all of five minutes before running a slam-bang highlight reel of the company’s shows that had titles like “Weediquette” and “Gaycation.”

In the last year, Vice has secured $500 million in financing and signed deals worth hundreds of millions of dollars with established media companies like HBO that are eager to engage the young viewers Vice attracts. Vice said it was now worth at least $4 billion, with nearly $1 billion in projected revenue for 2015. It is a long way from Vice’s humble start as a free magazine in 1994.

Photo
 
At the Vice after-party, the rapper Action Bronson, a host of a Vice show, made a pizza. Credit Jesse Dittmar for The New York Times

But even as cash flows freely in Vice’s direction, the company is trying to keep its brash, insurgent image. At the party on Friday, it plied guests with beers and cocktails. Its apparently unrehearsed presentation to advertisers was peppered with expletives. At one point, the director Spike Jonze, a longtime Vice collaborator, asked on stage if Mr. Smith had been drinking.

“My assistant tried to cut me off,” Mr. Smith replied. “I’m on buzz control.”

Now, Vice is on the verge of getting its own cable channel, which would give the company a traditional outlet for its slate of non-news programming. If all goes as planned, A&E Networks, the television group owned by Hearst and Disney, will turn over its History Channel spinoff, H2, to Vice.

The deal’s announcement was expected last week, but not all of A&E’s distribution partners — the cable and satellite TV companies that carry the network’s channels — have signed off on the change, according to a person familiar with the negotiations who spoke on the condition of anonymity because the talks were private.

A cable channel would be a further step in a transformation for Vice, from bad-boy digital upstart to mainstream media company.

Keen for the core audience of young men who come to Vice, media giants like 21st Century Fox, Time Warner and Disney all showed interest in the company last year. Vice ultimately secured $500 million in financing from A&E Networks and Technology Crossover Ventures, a Silicon Valley venture capital firm that has invested in Facebook and Netflix.

Those investments valued Vice at more than $2.5 billion. (In 2013, Fox bought a 5 percent stake for $70 million.)

Then in March, HBO announced that it had signed a multiyear deal to broadcast a daily half-hour Vice newscast. Vice already produces a weekly newsmagazine show, called “Vice,” for the network. That show will extend its run through 2018, with an increase to 35 episodes a year, from 14.

Michael Lombardo, HBO’s president for programming, said when the deal was announced that it was “certainly one of our biggest investments with hours on the air.”

Vice, based in Brooklyn, also recently signed a multiyear $100 million deal with Rogers Communications, a Canadian media conglomerate, to produce original content for TV, smartphone and desktop viewers.

Vice’s finances are private, but according to an internal document reviewed by The New York Times and verified by a person familiar with the company’s financials, the company is on track to make about $915 million in revenue this year.

Photo
 
Vice showed a highlight reel of its TV series at the NewFronts last week in New York. Credit Jesse Dittmar for The New York Times

It brought in $545 million in a strong first quarter, which included portions of the new HBO deal and the Rogers deal, according to the document. More of its revenue now comes from these types of content partnerships, compared with the branded content deals that made up much of its revenue a year ago, the company said.

Mr. Smith said the company was worth at least $4 billion. If the valuation gets much higher, he said he would consider taking the company public.

“I don’t care about money; we have plenty of money,” Mr. Smith, who is Vice’s biggest shareholder, said in an interview after the presentation on Friday. “I care about strategic deals.”

In the United States, Vice Media had 35.2 million unique visitors across its sites in March, according to comScore.

The third season of Vice’s weekly HBO show has averaged 1.8 million viewers per episode, including reruns, through April 12, according to Brad Adgate, the director of research at Horizon Media. (Vice said the show attracted three million weekly viewers when repeat broadcasts, online and on-demand viewings were included.)

For years, Mr. Smith has criticized traditional TV, calling it slow and unable to draw younger viewers. But if all the deals Vice has struck are to work out, Mr. Smith may have to play more by the rules of traditional media. James Murdoch, Rupert Murdoch’s son and a member of Vice’s board, was at the company’s presentation on Friday, as were other top media executives.

“They know they need people like me to help them, but they can’t get out of their own way,” Mr. Smith said in the interview Friday. “My only real frustration is we’re used to being incredibly dynamic, and they’re not incredibly dynamic.”

With its own television channel in the United States, Vice would have something it has long coveted even as traditional media companies are looking beyond TV. Last year, Vice’s deal with Time Warner failed in part because the two companies could not agree on how much control Vice would have over a 24-hour television network.

Vice said it intended to fill its new channel with non-news programming. The company plans to have sports shows, fashion shows, food shows and the “Gaycation” travel show with the actress Ellen Page. It is also in talks with Kanye West about a show.

It remains to be seen whether Vice’s audience will watch a traditional cable channel. Still, Vice has effectively presold all of the ad spots to two of the biggest advertising agencies for the first three years, Mr. Smith said.

In the meantime, Mr. Smith is enjoying Vice’s newfound role as a potential savior of traditional media companies.

“I’m a C.E.O. of a content company,” Mr. Smith said before he caught a flight to Las Vegas for the boxing match on Saturday between Floyd Mayweather Jr. and Manny Pacquiao. “If it stops being fun, then why are you doing it?”

As Vice Moves More to TV, It Tries to Keep Brash Voice

As he reflected on the festering wounds deepened by race and grievance that have been on painful display in America’s cities lately, President Obama on Monday found himself thinking about a young man he had just met named Malachi.

A few minutes before, in a closed-door round-table discussion at Lehman College in the Bronx, Mr. Obama had asked a group of black and Hispanic students from disadvantaged backgrounds what could be done to help them reach their goals. Several talked about counseling and guidance programs.

“Malachi, he just talked about — we should talk about love,” Mr. Obama told a crowd afterward, drifting away from his prepared remarks. “Because Malachi and I shared the fact that our dad wasn’t around and that sometimes we wondered why he wasn’t around and what had happened. But really, that’s what this comes down to is: Do we love these kids?”

Many presidents have governed during times of racial tension, but Mr. Obama is the first to see in the mirror a face that looks like those on the other side of history’s ledger. While his first term was consumed with the economy, war and health care, his second keeps coming back to the societal divide that was not bridged by his election. A president who eschewed focusing on race now seems to have found his voice again as he thinks about how to use his remaining time in office and beyond.

Continue reading the main story Video
Play Video|1:17

Obama Speaks of a ‘Sense of Unfairness’

Obama Speaks of a ‘Sense of Unfairness’

At an event announcing the creation of a nonprofit focusing on young minority men, President Obama talked about the underlying reasons for recent protests in Baltimore and other cities.

By Associated Press on Publish Date May 4, 2015. Photo by Stephen Crowley/The New York Times.

In the aftermath of racially charged unrest in places like Baltimore, Ferguson, Mo., and New York, Mr. Obama came to the Bronx on Monday for the announcement of a new nonprofit organization that is being spun off from his White House initiative called My Brother’s Keeper. Staked by more than $80 million in commitments from corporations and other donors, the new group, My Brother’s Keeper Alliance, will in effect provide the nucleus for Mr. Obama’s post-presidency, which will begin in January 2017.

“This will remain a mission for me and for Michelle not just for the rest of my presidency but for the rest of my life,” Mr. Obama said. “And the reason is simple,” he added. Referring to some of the youths he had just met, he said: “We see ourselves in these young men. I grew up without a dad. I grew up lost sometimes and adrift, not having a sense of a clear path. The only difference between me and a lot of other young men in this neighborhood and all across the country is that I grew up in an environment that was a little more forgiving.”

Advertisement

Organizers said the new alliance already had financial pledges from companies like American Express, Deloitte, Discovery Communications and News Corporation. The money will be used to help companies address obstacles facing young black and Hispanic men, provide grants to programs for disadvantaged youths, and help communities aid their populations.

Joe Echevarria, a former chief executive of Deloitte, the accounting and consulting firm, will lead the alliance, and among those on its leadership team or advisory group are executives at PepsiCo, News Corporation, Sprint, BET and Prudential Group Insurance; former Secretary of State Colin L. Powell; Senator Cory Booker, Democrat of New Jersey; former Attorney General Eric H. Holder Jr.; the music star John Legend; the retired athletes Alonzo Mourning, Jerome Bettis and Shaquille O’Neal; and the mayors of Indianapolis, Sacramento and Philadelphia.

The alliance, while nominally independent of the White House, may face some of the same questions confronting former Secretary of State Hillary Rodham Clinton as she begins another presidential campaign. Some of those donating to the alliance may have interests in government action, and skeptics may wonder whether they are trying to curry favor with the president by contributing.

“The Obama administration will have no role in deciding how donations are screened and what criteria they’ll set at the alliance for donor policies, because it’s an entirely separate entity,” Josh Earnest, the White House press secretary, told reporters on Air Force One en route to New York. But he added, “I’m confident that the members of the board are well aware of the president’s commitment to transparency.”

The alliance was in the works before the disturbances last week after the death of Freddie Gray, the black man who suffered fatal injuries while in police custody in Baltimore, but it reflected the evolution of Mr. Obama’s presidency. For him, in a way, it is coming back to issues that animated him as a young community organizer and politician. It was his own struggle with race and identity, captured in his youthful memoir, “Dreams From My Father,” that stood him apart from other presidential aspirants.

But that was a side of him that he kept largely to himself through the first years of his presidency while he focused on other priorities like turning the economy around, expanding government-subsidized health care and avoiding electoral land mines en route to re-election.

After securing a second term, Mr. Obama appeared more emboldened. Just a month after his 2013 inauguration, he talked passionately about opportunity and race with a group of teenage boys in Chicago, a moment aides point to as perhaps the first time he had spoken about these issues in such a personal, powerful way as president. A few months later, he publicly lamented the death of Trayvon Martin, a black Florida teenager, saying that “could have been me 35 years ago.”

Photo
 
President Obama on Monday with Darinel Montero, a student at Bronx International High School who introduced him before remarks at Lehman College in the Bronx. Credit Stephen Crowley/The New York Times

That case, along with public ruptures of anger over police shootings in Ferguson and elsewhere, have pushed the issue of race and law enforcement onto the public agenda. Aides said they imagined that with his presidency in its final stages, Mr. Obama might be thinking more about what comes next and causes he can advance as a private citizen.

That is not to say that his public discussion of these issues has been universally welcomed. Some conservatives said he had made matters worse by seeming in their view to blame police officers in some of the disputed cases.

“President Obama, when he was elected, could have been a unifying leader,” Senator Ted Cruz of Texas, a Republican candidate for president, said at a forum last week. “He has made decisions that I think have inflamed racial tensions.”

On the other side of the ideological spectrum, some liberal African-American activists have complained that Mr. Obama has not done enough to help downtrodden communities. While he is speaking out more, these critics argue, he has hardly used the power of the presidency to make the sort of radical change they say is necessary.

The line Mr. Obama has tried to straddle has been a serrated one. He condemns police brutality as he defends most officers as honorable. He condemns “criminals and thugs” who looted in Baltimore while expressing empathy with those trapped in a cycle of poverty and hopelessness.

In the Bronx on Monday, Mr. Obama bemoaned the death of Brian Moore, a plainclothes New York police officer who had died earlier in the day after being shot in the head Saturday on a Queens street. Most police officers are “good and honest and fair and care deeply about their communities,” even as they put their lives on the line, Mr. Obama said.

“Which is why in addressing the issues in Baltimore or Ferguson or New York, the point I made was that if we’re just looking at policing, we’re looking at it too narrowly,” he added. “If we ask the police to simply contain and control problems that we ourselves have been unwilling to invest and solve, that’s not fair to the communities, it’s not fair to the police.”

Moreover, if society writes off some people, he said, “that’s not the kind of country I want to live in; that’s not what America is about.”

His message to young men like Malachi Hernandez, who attends Boston Latin Academy in Massachusetts, is not to give up.

“I want you to know you matter,” he said. “You matter to us.”

Advertisement Politics Obama Finds a Bolder Voice on Race Issues

Mr. Haroche was a founder of Liberty Travel, which grew from a two-man operation to the largest leisure travel operation in the United States.

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Hired in 1968, a year before their first season, Mr. Fanning spent 25 years with the team, managing them to their only playoff appearance in Canada.

Jim Fanning, 87, Dies; Lifted Baseball in Canada With Expos

Fullmer, who reigned when fight clubs abounded and Friday night fights were a television staple, was known for his title bouts with Sugar Ray Robinson and Carmen Basilio.

Gene Fullmer, a Brawling Middleweight Champion, Dies at 83

BEIJING (AP) — The head of Taiwan's Nationalists reaffirmed the party's support for eventual unification with the mainland when he met Monday with Chinese President Xi Jinping as part of continuing rapprochement between the former bitter enemies.

Nationalist Party Chairman Eric Chu, a likely presidential candidate next year, also affirmed Taiwan's desire to join the proposed Chinese-led Asian Infrastructure Investment Bank during the meeting in Beijing. China claims Taiwan as its own territory and doesn't want the island to join using a name that might imply it is an independent country.

Chu's comments during his meeting with Xi were carried live on Hong Kong-based broadcaster Phoenix Television.

The Nationalists were driven to Taiwan by Mao Zedong's Communists during the Chinese civil war in 1949, leading to decades of hostility between the sides. Chu, who took over as party leader in January, is the third Nationalist chairman to visit the mainland and the first since 2009.

Relations between the communist-ruled mainland and the self-governing democratic island of Taiwan began to warm in the 1990s, partly out of their common opposition to Taiwan's formal independence from China, a position advocated by the island's Democratic Progressive Party.

Despite increasingly close economic ties, the prospect of political unification has grown increasingly unpopular on Taiwan, especially with younger voters. Opposition to the Nationalists' pro-China policies was seen as a driver behind heavy local electoral defeats for the party last year that led to Taiwanese President Ma Ying-jeou resigning as party chairman.

Taiwan party leader affirms eventual reunion with China

Ms. Crough played the youngest daughter on the hit ’70s sitcom starring David Cassidy and Shirley Jones.

Suzanne Crough, Actress in ‘The Partridge Family,’ Dies at 52
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