PAKET UMROH BULAN FEBRUARI MARET APRIL MEI 2018

Pusing tujuh keliling (vertigo) merupakan suatu gejala yang sering menyertai gangguan alat keseimbangan dalam telinga tengah, pada kasus ringan, gejala pusing tujuh keliling dapat hilang atau mereda dengan menutup mata, tetapi pada kasus berat gejala pusing tujuh keliling sedemikian hebat sehingga seolah-olah seperti mabuk perjalanan disertai rasa mual, muntah dan keringat dingin.

Gejala pusing tujuh keliling dapat merupakan gejala dari hipertensi (tekanan darah tinggi) pengerasan pembuluh nadi (arteriosclerosis) neurosis atau gangguan telinga.

ETIOLOGI DAN PATOGENESIS DALAM AKUPUNTUR

a.     EKSES YANG LIVER

Liver atau hati yang berunsur kayu dan angin memiliki ciri bergerak dan naik keatas. Kecemasan, depresi dan marah dapat merusak Yin hati sehingga Yang hati ekses.

Pusing tujuh keliling terjadi apabila Yang hati bergerak seperti angin yang naik menyerang otak. Atau biasanya defisiensi air ginjal menyebabkan kegagalan untuk member Qi ke Hati.

Pusing tujuh keliling terjadi karena Hati kekurangan energy sehingga menimbulkan ekses Yang Hati, kadang terjadi defisiensi pada bagian bawah tubuh dan ekses pada bagian atas tubuh bersamaan.

b.    

     DEFISIENSI QI DAN DARAH

Jantung dan Limpa dapat rusak oleh kerja yang berlebihan, kurang istirahat atau kelemahan tubuh setelah sakit berat, Limpa yang rusak gagal membentuk Qi dan darah sehingga terjadi defisiensi Qi dan darah. Pada defisiensi Qi dan darah di daerah otak akan menimbulkan pusing tujuh keliling.

c.      SUMBATAN RIAK LEMBAB DARI DALAM

Pada riak lembab yang berlebihan, makan yang tidak teratur dan kerja terlampau keras dapat mengganggu lambung dan Limpa, sehingga fungsi transportasi dan transformasi terganggu. Akibat gangguan tersebut terjadi pembentukan riak lembab, riak dan Qi dapat menggangu naiknya Yang dan turunnya Yin sehingga menimbulkan pusing tujuh keliling.

PENGGOLONGAN

a.     Ekses Yang Hati

Gejala Utama :

·        Pusing tujuh keliling yang meningkat pada keadaan marah serta mudah tersinggung

·        Muka merah, mata merah

·        Telingan berdenging

·        Rasa pahit dimulut

·        Gangguan mimpi

·        Lidah merah dan selaput lidah kuning

·        Denyut nadi tegang dan cepat

ANALISA

·        Marah merusak Yin Hati menyebabkan ekese Yang Hati yang menimbulkan api

·        Api yang membumbung ke atas membuat muka merah, mata merah dan mudah tersinggung

·        Semangat yand disimpan di Hati terganggu sehingga terjadi gangguan mimpi

·        Lidah merah dengan selaput lidah kuning, rasa pahit dimulut, denyut nadi tegang dan cepat merupakan tanda defisiensi Yin akibat ekses Api.

b.     DEFISIENSI QI DAN DARAH

Gejala Utama :

·        Pusing tujuh keliling diikuti oleh pucat, lelah dan lesu, berdebar-debar, sulit tidur, bibir dan kuku pucat, malas, lebih pucat serta nadi lemah dan kecil.

·        Pusing tujuh keliling terjadi setelah penyakit berat atau banyak kehilangan darah dan semakin nyata setelah kerja berat.

·        Pada kasus berat kadang terjadi hilang kesadaran.

ANALISA :

·        Pusing tujuh keliling terjadi karena gagalnya Qi dan darah sampai di kepala

·        Jantung mendominasi darah dan limpa mendominasi transportasi dan transformasi untuk pembentukan Qi dan darah.

·        Bila jantung dan Limpa rusak Qi dan darah kurang mencukupi sehingga warna kulit tidak bercahaya, serta kuku dan bibir rusak

·        Defisiensi darah menimbulkan berdebar-debar dan sulit tidur, sedangkan defisiensi Qi menimbulkan kelesuan, malas kurang nafsu makan, yang meningkat akibat kerja berat

·        Lidah pucat, nadi lemah dan kecil merupakan tanda-tanda defisiensi Qi dan darah.

c.      SUMBATAN RIAK LEMBAB DARI DALAM

Gejala Utama :

·        Pusing tujuh keliling dengan rasa berat kepala dan rasa tertekan didada

·        Mual, riak yang berlebihan, kurang nafsu makan, mengantuk, selaput lidah putih dan lengket serta nadi yang lembut dan bergelombang.

ANALISA :

·        Pusing tujuh keliling dengan rasa berat dikepala merupakan gejala gangguan Yang sejati oleh riak lembab.

·        Rasa tertekan didada dan mual disebabkan oleh obstruksi daerah Qiao tengah.

·        Kurang nafsu makan dan mengantuk disebabkan oleh defisiensi Yang Limpa

·        Selaput lidah yang putih dan lengket serta nadi lembut dna bergelombang merupakan tanda peningkatan riak lembab.

TATA LAKSANA TERAPI AKUPUNTUR UNTUK VERTIGO

a.     EKSES YANG HATI

a.     Dipilih titik pada meridian Hati dan Ginjal untuk meningkatkan Ying dan menenangkan Yang

b.     Tusukan tonifikasi dan sedasi dipilih sesuai dengan kondisi penyakit

c.      Biasanya dipilih titik-titik

1.     GB 20  Fengchi (fungce)

2.     BL 18 Ganshu

3.     KI 3 Taixi

4.     BL 23  Shenshu

5.     LR 2  Xingjian

Penjelasan :

·        Tusukan tonifikasi dilakukan pada : BL 23 Shensu dan KI 3 Taixi untuk menambah air ginjal

·        Tusukan sedasi dilakukan pada : BL 18, LR 2 dan GB 20 untuk menenangkan Yang Hati.

b.     DEFISIENSI QI DAN DARAH

·        Dipilih titik meridian REN, Kandung kemih dan lambung dengan cara tonifikasi (kadang dimoksa) untuk menambah Qi dan darah.

Titik yang dipilih adalah :

GV20, BL20, CV4, ST36 dan SP6

Penjelasan:

·        Moksibusi pada GV20 mengakibatkan naiknya Qi dan darah ke kepala sehingga menurunkan pusing

·        CV4 digunakan untuk memperkuat Qi primer dan BL20 SP6 untuk memperkuat Limpa dan Lambung untuk membentuk Qi darah

c.      RETENSI RIAK LEMBAB DARI DALAM

Pemilihan titik Asosiasi (Su-belakang) dan titik Waspada (Alarm, Mu depan) dari Limpa dan Lambung merupakan upaya untuk menghilangkan lender dan menurunkan lembab.

Titik yang dipilih :

1.     ST 8  Touwei

2.     BL 20 Pishu

3.     CV 12  Zhongwan

4.     PC 6 Neiguan

5.     BL 40 Fenglong

Penjelasan :

·        BL 20 Pishu dan CV12 Zhongwan untuk memperkuat Limpa dan lambung sehingga menurunkan riak lembab

·        ST40 Fenglong merupakan titik Luo meridian lambung sehingga Qi menurun dan menghilangkan riak

·        ST8 Touwei sebagai terapi simptomatik pusing tujuh keliling

·        PC6 neiquan untuk merelaksasikan dada, mengatur Qi serta menyelaraskan Qi lambung untuk menghilangkan mual

saco-indonesia.com,

Jenis-jenis Valve dan Fungsinya

Jenis-jenis valve dan fungsinya :
 
1. Gate Valve
Gate Valve adalah valve yang paling sering dipakai pada sistem perpipaan. Fungsinya untuk dapat membuka dan menutup aliran (on-off), tetapi tidak bisa untuk mengatur besar kecil aliran (throttling). Kelebihan Gate Valve, minimnya halangan/ resistan saat valve ini telah dibuka penuh, sehingga aliran bisa
maksimal. Gate Valve telah mengontrol aliran melalui badan valve yang berbentuk pipa, dengan sebuah lempengan atau baji vertikal  yang bisa bergeser naik turun saat handel valve diputar. Valve ini telah didesain untuk dapat mengatur posisi terbuka penuh, atau tertutup penuh. Jika valve ini dalam keadaan setengah terbuka, maka akan dapat menyebabkan pengikisan pada badan valve, dan turbulensi aliran zat bisa dapat menyebabkan getaran pada baji valve sehingga dapat menghasilkan suara gemeretak.

2. Globe Valve
Globe Valve biasanya akan digunakan pada situasi dimana pengaturan besar kecil aliran (throttling) sangat diperlukan. Dengan mudah memutar handel valve, besarnya aliran zat yang telah melewati valve bisa diatur. Dudukan valve yang sejajar dengan aliran, telah membuat globe valve efisien ketika dapat mengatur besar kecilnya aliran dengan minimum erosi piringan dan dudukan. Namun demikian tahanan didalam valve cukup besar. Desain globe valve yang sedemikian rupa, telah memaksa adanya perubahan arah aliran zat didalam valve, sehingga tekanan menurun drastis dan dapat menyebabkan turbulensi di dalam valve itu sendiri. Dengan demikian, Globe Valve tidak disarankan diinstal pada sistem yang menghindari penurunan tekanan, dan sistem yang menghindari tahanan pada aliran.

3. Angle Valve  
Sama seperti globe valve, angle valve juga akan digunakan pada situasi dimana pengaturan besar kecil aliran telah diperlukan (throttling). Namun angle valve telah di buat dengan sudut 90°, hal ini untuk dapat mengurangi pemakaian elbow 90° dan fitting tambahan.
 
4. Check Valve
Check Valve telah memiliki perbedaan yang sangat signifikan dari Gate Valve dan Globe Valve. Valve ini telah di disain untuk dapat mencegah aliran balik. Ada beberapa jenis check valve, tapi ada 2 jenis yang paling umum yaitu Swing Check dan Lift Check. Swing Check Valve biasanya telah dipasangkan dengan Gate Valve, sedangkan Lift Check Valve oleh beberapa pabrikan digunakan untuk dapat menggantikan fungsi Ball Valve sebagai Ball Check Valve. Check Valve tidak menggunakan handel untuk dapat mengatur aliran, tapi dengan menggunakan gravitasi dan tekanan dari aliran fluida itu sendiri. Karena fungsinya yang juga dapat mencegah aliran balik (backflow). Check Valve juga sering digunakan sebagai pengaman dari sebuah equipment dalam sistem perpipaan.
 
5. Ball Valve
Ball Valve adalah alternatif murah dari jenis valve-valve yang lain. Ball valve dengan menggunakan bola logam yang tengahnya ada lubang tembus, diapit oleh dudukan valve untuk dapat mengontrol aliran. Sering dipakai pada proses hydrocarbon, ball valve mampu untuk dapat mengatur besar kecil aliran gas dan uap terutama untuk tekanan rendah. Valve ini juga dapat dengan cepat ditutup dan cukup kedap untuk menahan fluida/ zat cair. Ball valve tidak menggunakan handwheel, tetapi dengan menggunakan ankle untuk dapat membuka atau menutup valve dengan sudut 90°.
 
6. Butterfly Valve
Butterfly Valve telah memiliki bentuk yang sangat unik jika dibandingkan dengan valve-valve yang lain. Butterfly dengan menggunakan plat bundar atau wafer yang dioperasikan dengan ankel untuk posisi membuka penuh atau menutup penuh dengan sudut 90°. Wafer ini tetap berada ditengah aliran, dan dihubungkan ke ankel melalui shaft. Saat valve dalam keadaan tertutup, wafer tersebut tegak lurus dengan arah aliran, sehingga aliran terbendung, dan saat valve terbuka wafer sejajar/ segaris dengan aliran, sehingga zat dapat mengalir melalui valve. Butterfly valve telah memiliki turbulensi dan penurunan tekanan (pressure drop) yang minimal. Valve ini sangat bagus untuk pengoperasian on-off ataupun throttling, dan bagus untuk dapat mengontrol aliran zat cair atau gas dalam jumlah yang besar. Namun demikian valve ini biasanya tidak memiliki kekedapan yang bagus, dan harus digunakan pada situasi/ sistem yang memiliki tekanan rendah (low-pressure).

7. Relief Valve
Relief valve telah memiliki fungsi yang sangat berbeda dari valve-valve yang lain. Valve ini telah didisain khusus untuk dapat melepas tekanan berlebih yang ada di equipment dan sistem perpipaan. Untuk dapat mencegah kerusakan pada equipment, dan lebih penting lagi cedera pada pekerja, relief valve dapat melepas kenaikan tekanan sebelum menjadi lebih ekstrim. Relief valve menggunakan pegas baja, yang secara otomatis akan terbuka jika tekanan mencapai level yang tidak aman. Level tekanan pada valve ini bisa diatur, sehingga bisa ditentukan pada level tekanan berapa valve ini akan terbuka. Ketika tekanan kembali normal, relief valve secara otomatis akan tertutup kembali.

Editor : Dian Sukmawati

saco-indonesia.com, Banyak orang yang telah bingung ketika saat menghidupkan mesin kendaraannya tiba-tiba ngadat. Hal ini bisa telah terjadi karena berbagai hal, salah satunya adalah karena aki yang sudah tidak berfungsi dengan baik. Aki juga merupakan sumber energi yang biasanya digunakan untuk alat-alat elektronik, kendaraan dan lain sebagainya. Aki itu sendiri telah terbagi menjadi dua yaitu aki basah dan aki kering. Tentunya keduanya juga telah memiliki kelebihan dan kekurangannya sendiri-sendiri. Jika Aki basah dibutuhkan perawatan yang lebih telaten dibandingkan dengan aki kering, tetapi jika kita tahu cara merawat aki basah, maka aki basah akan mempunyai umur yang lebih lama jika dibandingkan aki kering.

Sebagai salah satu sumber kelistrikan pada kendaraan, tentunya kita juga tidak ingin aki kendaraan kita gampang mati. Karena itu disini kita akan mengulas salah satunya saja, yaitu bagaimana cara untuk merawat aki basah agar awet dan bisa dipakai dalam kurun waktu yang lama.
Cara Merawat Aki Basah Yang Benar

Langkah-langkah cara merawat aki basah :

    Anda jangan malas untuk selalu memeriksa air aki. Pemeriksaan juga bisa dilakukan secara berkala, dan air aki juga harus lebih tinggi dari batas Low dan juga berada di bawah batas Upper Level.
    Tambah air aki jika air aki sudah berkurang dan berada di bawah level Low. Gunakan air aki biasa, jangan menggunakan air aki zuur, karena air aki zuur telah digunakan saat pertama saja.
    Penambahan air aki sebaiknya pada pagi hari sebelum mesin dinyalakan.
    Penggunaan arus listrik Aki juga harus sewajarnya. Anda juga harus membatasi pemakaian arus sesuai kapasitas dari aki yang digunakan, karena jika over maka aki akan mudah mati.
    Hati-hati terhadap hubungan pendek antara kutub positif dan negatif, karena hal tersebut juga bisa menyebabkan kerusakan pada sel aki.
    Periksa katup krem yang ada di aki, jika Anda telah mendapati dalam keadaan longgar maka segera kencangkan.
    Aki yang telah mendapat goncangan terlalu keras juga dapat mempengaruhi umur aki tersebut, maka pastikan aki terlindungi dengan memperhatikan penjepit aki/braket aki tetap kokoh.
    Bersihkan aki dari debu dan berikan sedikit gemuk pada kutupnya agar tidak mudah berkarat atau berjamur.
    Periksa secara keseluruhan fisik aki, apakah ada keretakan pada fisik, plug aki yang tidak tertutup dengan baik dan juga jangan lupa memperhatikan bagian ventplug, mampet atau tidaknya.

Editor : Dian Sukmawati

menjual berbagai macam furniture rotan dengan harga yang terjangkau dan kualitas terjamin

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.

Todd Heisler/The New York Times

Children playing last week in Sandtown-Winchester, the Baltimore neighborhood where Freddie Gray was raised. One young resident called it “a tough community.”

Hard but Hopeful Home to ‘Lot of Freddies’

The neighborhood where Freddie Gray came of age has survived harrowing rates of unemployment, poor health, violent crime and incarceration.

Mr. Alger, who served five terms from Texas, led Republican women in a confrontation with Lyndon B. Johnson that may have cost Richard M. Nixon the 1960 presidential election.

A lapsed seminarian, Mr. Chambers succeeded Saul Alinsky as leader of the social justice umbrella group Industrial Areas Foundation.

Ms. von Furstenberg made her debut in the movies and on the Broadway stage in the early 1950s as a teenager and later reinvented herself as a television actress, writer and philanthropist.

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.

Mr. Paczynski was one of the concentration camp’s longest surviving inmates and served as the personal barber to its Nazi commandant Rudolf Höss.

Over the last five years or so, it seemed there was little that Dean G. Skelos, the majority leader of the New York Senate, would not do for his son.

He pressed a powerful real estate executive to provide commissions to his son, a 32-year-old title insurance salesman, according to a federal criminal complaint. He helped get him a job at an environmental company and employed his influence to help the company get government work. He used his office to push natural gas drilling regulations that would have increased his son’s commissions.

He even tried to direct part of a $5.4 billion state budget windfall to fund government contracts that the company was seeking. And when the company was close to securing a storm-water contract from Nassau County, the senator, through an intermediary, pressured the company to pay his son more — or risk having the senator subvert the bid.

The criminal complaint, unsealed on Monday, lays out corruption charges against Senator Skelos and his son, Adam B. Skelos, the latest scandal to seize Albany, and potentially alter its power structure.

Photo

 

The repeated and diverse efforts by Senator Skelos, a Long Island Republican, to use what prosecutors said was his political influence to find work, or at least income, for his son could send both men to federal prison. If they are convicted of all six charges against them, they face up to 20 years in prison for each of four of the six counts and up to 10 years for the remaining two.

Senator Kenneth P. LaValle, of Long Island, who serves as chairman of the Republican conference, emerged from a closed-door meeting Monday night to say that conference members agreed that Mr. Skelos should be benefited the “presumption of innocence,” and would stay in his leadership role.

“The leader has indicated he would like to remain as leader,” said Mr. LaValle, “and he has the support of the conference.” The case against Mr. Skelos and his son grew out of a broader inquiry into political corruption by the United States attorney for the Southern District of New York, Preet Bharara, that has already changed the face of the state capital. It is based in part, according to the six-count complaint, on conversations secretly recorded by one of two cooperating witnesses, and wiretaps on the cellphones of the senator and his son. Those recordings revealed that both men were concerned about electronic surveillance, and illustrated the son’s unsuccessful efforts to thwart it.

Adam Skelos took to using a “burner” phone, the complaint says, and told his father he wanted them to speak through a FaceTime video call in an apparent effort to avoid detection. They also used coded language at times.

At one point, Adam Skelos was recorded telling a Senate staff member of his frustration in not being able to speak openly to his father on the phone, noting that he could not “just send smoke signals or a little pigeon” carrying a message.

The 43-page complaint, sworn out by Paul M. Takla, a special agent for the Federal Bureau of Investigation, outlines a five-year scheme to “monetize” the senator’s official position; it also lays bare the extent to which a father sought to use his position to help his son.

The charges accuse the two men of extorting payments through a real estate developer, Glenwood Management, based on Long Island, and the environmental company, AbTech Industries, in Scottsdale, Ariz., with the expectation that the money paid to Adam Skelos — nearly $220,000 in total — would influence his father’s actions.

Glenwood, one of the state’s most prolific campaign donors, had ties to AbTech through investments in the environmental firm’s parent company by Glenwood’s founding family and a senior executive.

The accusations in the complaint portray Senator Skelos as a man who, when it came to his son, was not shy about twisting arms, even in situations that might give other arm-twisters pause.

Seeking to help his son, Senator Skelos turned to the executive at Glenwood, which develops rental apartments in New York City and has much at stake when it comes to real estate legislation in Albany. The senator urged him to direct business to his son, who sold title insurance.

After much prodding, the executive, Charles C. Dorego, engineered a $20,000 payment to Adam Skelos from a title insurance company even though he did no work for the money. But far more lucrative was a consultant position that Mr. Dorego arranged for Adam Skelos at AbTech, which seeks government contracts to treat storm water. (Mr. Dorego is not identified by name in the complaint, but referred to only as CW-1, for Cooperating Witness 1.)

Senator Skelos appeared to take an active interest in his son’s new line of work. Adam Skelos sent him several drafts of his consulting agreement with AbTech, the complaint says, as well as the final deal that was struck.

“Mazel tov,” his father replied.

Senator Skelos sent relevant news articles to his son, including one about a sewage leak near Albany. When AbTech wanted to seek government contracts after Hurricane Sandy, the senator got on a conference call with his son and an AbTech executive, Bjornulf White, and offered advice. (Like Mr. Dorego, Mr. White is not named in the complaint, but referred to as CW-2.)

The assistance paid off: With the senator’s help, AbTech secured a contract worth up to $12 million from Nassau County, a big break for a struggling small business.

But the money was slow to materialize. The senator expressed impatience with county officials.

Adam Skelos, in a phone call with Mr. White in late December, suggested that his father would seek to punish the county. “I tell you this, the state is not going to do a [expletive] thing for the county,” he said.

Three days later, Senator Skelos pressed his case with the Nassau County executive, Edward P. Mangano, a fellow Republican. “Somebody feels like they’re just getting jerked around the last two years,” the senator said, referring to his son in what the complaint described as “coded language.”

The next day, the senator pursued the matter, as he and Mr. Mangano attended a wake for a slain New York City police officer. Senator Skelos then reassured his son, who called him while he was still at the wake. “All claims that are in will be taken care of,” the senator said.

AbTech’s fortunes appeared to weigh on his son. At one point in January, Adam Skelos told his father that if the company did not succeed, he would “lose the ability to pay for things.”

Making matters worse, in recent months, Senator Skelos and his son appeared to grow wary about who was watching them. In addition to making calls on the burner phone, Adam Skelos said he used the FaceTime video calling “because that doesn’t show up on the phone bill,” as he told Mr. White.

In late February, Adam Skelos arranged a pair of meetings between Mr. White and state senators; AbTech needed to win state legislation that would allow its contract to move beyond its initial stages. But Senator Skelos deemed the plan too risky and caused one of the meetings to be canceled.

In another recorded call, Adam Skelos, promising to be “very, very vague” on the phone, urged his father to allow the meeting. The senator offered a warning. “Right now we are in dangerous times, Adam,” he told him.

A month later, in another phone call that was recorded by the authorities, Adam Skelos complained that his father could not give him “real advice” about AbTech while the two men were speaking over the telephone.

“You can’t talk normally,” he told his father, “because it’s like [expletive] Preet Bharara is listening to every [expletive] phone call. It’s just [expletive] frustrating.”

“It is,” his father agreed.

THE WRITERS ASHLEY AND JAQUAVIS COLEMAN know the value of a good curtain-raiser. The couple have co-authored dozens of novels, and they like to start them with a bang: a headlong action sequence, a blast of violence or sex that rocks readers back on their heels. But the Colemans concede they would be hard-pressed to dream up anything more gripping than their own real-life opening scene.

In the summer of 2001, JaQuavis Coleman was a 16-year-old foster child in Flint, Mich., the former auto-manufacturing mecca that had devolved, in the wake of General Motors’ plant closures, into one of the country’s most dangerous cities, with a decimated economy and a violent crime rate more than three times the national average. When JaQuavis was 8, social services had removed him from his mother’s home. He spent years bouncing between foster families. At 16, JaQuavis was also a businessman: a crack dealer with a network of street-corner peddlers in his employ.

One day that summer, JaQuavis met a fellow dealer in a parking lot on Flint’s west side. He was there to make a bulk sale of a quarter-brick, or “nine-piece” — a nine-ounce parcel of cocaine, with a street value of about $11,000. In the middle of the transaction, JaQuavis heard the telltale chirp of a walkie-talkie. His customer, he now realized, was an undercover policeman. JaQuavis jumped into his car and spun out onto the road, with two unmarked police cars in pursuit. He didn’t want to get into a high-speed chase, so he whipped his car into a church parking lot and made a run for it, darting into an alleyway behind a row of small houses, where he tossed the quarter-brick into some bushes. When JaQuavis reached the small residential street on the other side of the houses, he was greeted by the police, who handcuffed him and went to search behind the houses where, they told him, they were certain he had ditched the drugs. JaQuavis had been dealing since he was 12, had amassed more than $100,000 and had never been arrested. Now, he thought: It’s over.

But when the police looked in the bushes, they couldn’t find any cocaine. They interrogated JaQuavis, who denied having ever possessed or sold drugs. They combed the backyard alley some more. After an hour of fruitless efforts, the police were forced to unlock the handcuffs and release their suspect.

JaQuavis was baffled by the turn of events until the next day, when he received a phone call. The previous afternoon, a 15-year-old girl had been sitting in her home on the west side of Flint when she heard sirens. She looked out of the window of her bedroom, and watched a young man throw a package in the bushes behind her house. She recognized him. He was a high school classmate — a handsome, charismatic boy whom she had admired from afar. The girl crept outside and grabbed the bundle, which she hid in her basement. “I have something that belongs to you,” Ashley Snell told JaQuavis Coleman when she reached him by phone. “You wanna come over here and pick it up?”

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In the Colemans’ first novel, “Dirty Money” (2005), they told a version of this story. The outline was the same: the drug deal gone bad, the dope chucked in the bushes, the fateful phone call. To the extent that the authors took poetic license, it was to tone down the meet-cute improbability of the true-life events. In “Dirty Money,” the girl, Anari, and the crack dealer, Maurice, circle each other warily for a year or so before coupling up. But the facts of Ashley and JaQuavis’s romance outstripped pulp fiction. They fell in love more or less at first sight, moved into their own apartment while still in high school and were married in 2008. “We were together from the day we met,” Ashley says. “I don’t think we’ve spent more than a week apart in total over the past 14 years.”

That partnership turned out to be creative and entrepreneurial as well as romantic. Over the past decade, the Colemans have published nearly 50 books, sometimes as solo writers, sometimes under pseudonyms, but usually as collaborators with a byline that has become a trusted brand: “Ashley & JaQuavis.” They are marquee stars of urban fiction, or street lit, a genre whose inner-city settings and lurid mix of crime, sex and sensationalism have earned it comparisons to gangsta rap. The emergence of street lit is one of the big stories in recent American publishing, a juggernaut that has generated huge sales by catering to a readership — young, black and, for the most part, female — that historically has been ill-served by the book business. But the genre is also widely maligned. Street lit is subject to a kind of triple snobbery: scorned by literati who look down on genre fiction generally, ignored by a white publishing establishment that remains largely indifferent to black books and disparaged by African-American intellectuals for poor writing, coarse values and trafficking in racial stereotypes.

But if a certain kind of cultural prestige is shut off to the Colemans, they have reaped other rewards. They’ve built a large and loyal fan base, which gobbles up the new Ashley & JaQuavis titles that arrive every few months. Many of those books are sold at street-corner stands and other off-the-grid venues in African-American neighborhoods, a literary gray market that doesn’t register a blip on best-seller tallies. Yet the Colemans’ most popular series now regularly crack the trade fiction best-seller lists of The New York Times and Publishers Weekly. For years, the pair had no literary agent; they sold hundreds of thousands of books without banking a penny in royalties. Still, they have earned millions of dollars, almost exclusively from cash-for-manuscript deals negotiated directly with independent publishing houses. In short, though little known outside of the world of urban fiction, the Colemans are one of America’s most successful literary couples, a distinction they’ve achieved, they insist, because of their work’s gritty authenticity and their devotion to a primal literary virtue: the power of the ripping yarn.

“When you read our books, you’re gonna realize: ‘Ashley & JaQuavis are storytellers,’ ” says Ashley. “Our tales will get your heart pounding.”

THE COLEMANS’ HOME BASE — the cottage from which they operate their cottage industry — is a spacious four-bedroom house in a genteel suburb about 35 miles north of downtown Detroit. The house is plush, but when I visited this past winter, it was sparsely appointed. The couple had just recently moved in, and had only had time to fully furnish the bedroom of their 4-year-old son, Quaye.

In conversation, Ashley and JaQuavis exude both modesty and bravado: gratitude for their good fortune and bootstrappers’ pride in having made their own luck. They talk a lot about their time in the trenches, the years they spent as a drug dealer and “ride-or-die girl” tandem. In Flint they learned to “grind hard.” Writing, they say, is merely a more elevated kind of grind.

“Instead of hitting the block like we used to, we hit the laptops,” says Ashley. “I know what every word is worth. So while I’m writing, I’m like: ‘Okay, there’s a hundred dollars. There’s a thousand dollars. There’s five thousand dollars.’ ”

They maintain a rigorous regimen. They each try to write 5,000 words per day, five days a week. The writers stagger their shifts: JaQuavis goes to bed at 7 p.m. and wakes up early, around 3 or 4 in the morning, to work while his wife and child sleep. Ashley writes during the day, often in libraries or at Starbucks.

They divide the labor in other ways. Chapters are divvied up more or less equally, with tasks assigned according to individual strengths. (JaQuavis typically handles character development. Ashley loves writing murder scenes.) The results are stitched together, with no editorial interference from one author in the other’s text. The real work, they contend, is the brainstorming. The Colemans spend weeks mapping out their plot-driven books — long conversations that turn into elaborate diagrams on dry-erase boards. “JaQuavis and I are so close, it makes the process real easy,” says Ashley. “Sometimes when I’m thinking of something, a plot point, he’ll say it out loud, and I’m like: ‘Wait — did I say that?’ ”

Their collaboration developed by accident, and on the fly. Both were bookish teenagers. Ashley read lots of Judy Blume and John Grisham; JaQuavis liked Shakespeare, Richard Wright and “Atlas Shrugged.” (Their first official date was at a Borders bookstore, where Ashley bought “The Coldest Winter Ever,” the Sister Souljah novel often credited with kick-starting the contemporary street-lit movement.) In 2003, Ashley, then 17, was forced to terminate an ectopic pregnancy. She was bedridden for three weeks, and to provide distraction and boost her spirits, JaQuavis challenged his girlfriend to a writing contest. “She just wasn’t talking. She was laying in bed. I said, ‘You know what? I bet you I could write a better book than you.’ My wife is real competitive. So I said, ‘Yo, all right, $500 bet.’ And I saw her eyes spark, like, ‘What?! You can’t write no better book than me!’ So I wrote about three chapters. She wrote about three chapters. Two days later, we switched.”

The result, hammered out in a few days, would become “Dirty Money.” Two years later, when Ashley and JaQuavis were students at Ferris State University in Western Michigan, they sold the manuscript to Urban Books, a street-lit imprint founded by the best-selling author Carl Weber. At the time, JaQuavis was still making his living selling drugs. When Ashley got the phone call informing her that their book had been bought, she assumed they’d hit it big, and flushed more than $10,000 worth of cocaine down the toilet. Their advance was a mere $4,000.

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Those advances would soon increase, eventually reaching five and six figures. The Colemans built their career, JaQuavis says, in a manner that made sense to him as a veteran dope peddler: by flooding the street with product. From the start, they were prolific, churning out books at a rate of four or five a year. Their novels made their way into stores; the now-defunct chain Waldenbooks, which had stores in urban areas typically bypassed by booksellers, was a major engine of the street-lit market. But Ashley and JaQuavis took advantage of distribution channels established by pioneering urban fiction authors such as Teri Woods and Vickie Stringer, and a network of street-corner tables, magazine stands, corner shops and bodegas. Like rappers who establish their bona fides with gray-market mixtapes, street-lit authors use this system to circumnavigate industry gatekeepers, bringing their work straight to the genre’s core readership. But urban fiction has other aficionados, in less likely places. “Our books are so popular in the prison system,” JaQuavis says. “We’re banned in certain penitentiaries. Inmates fight over the books — there are incidents, you know? I have loved ones in jail, and they’re like: ‘Yo, your books can’t come in here. It’s against the rules.’ ”

The appeal of the Colemans’ work is not hard to fathom. The books are formulaic and taut; they deliver the expected goods efficiently and exuberantly. The titles telegraph the contents: “Diary of a Street Diva,” “Kiss Kiss, Bang Bang,” “Murderville.” The novels serve up a stream of explicit sex and violence in a slangy, tangy, profane voice. In Ashley & JaQuavis’s books people don’t get killed: they get “popped,” “laid out,” get their “cap twisted back.” The smut is constant, with emphasis on the earthy, sticky, olfactory particulars. Romance novel clichés — shuddering orgasms, heroic carnal feats, superlative sexual skill sets — are rendered in the Colemans’ punchy patois.

Subtlety, in other words, isn’t Ashley & JaQuavis’s forte. But their books do have a grainy specificity. In “The Cartel” (2008), the first novel in the Colemans’ best-selling saga of a Miami drug syndicate, they catch the sights and smells of a crack workshop in a housing project: the nostril-stinging scent of cocaine and baking soda bubbling on stovetops; the teams of women, stripped naked except for hospital masks so they can’t pilfer the merchandise, “cutting up the cooked coke on the round wood table.” The subject matter is dark, but the Colemans’ tone is not quite noir. Even in the grimmest scenes, the mood is high-spirited, with the writers palpably relishing the lewd and gory details: the bodies writhing in boudoirs and crumpling under volleys of bullets, the geysers of blood and other bodily fluids.

The luridness of street lit has made it a flashpoint, inciting controversy reminiscent of the hip-hop culture wars of the 1980s and ’90s. But the street-lit debate touches deeper historical roots, reviving decades-old arguments in black literary circles about the mandate to uplift the race and present wholesome images of African-Americans. In 1928, W. E. B. Du Bois slammed the “licentiousness” of “Home to Harlem,” Claude McKay’s rollicking novel of Harlem nightlife. McKay’s book, Du Bois wrote, “for the most part nauseates me, and after the dirtier parts of its filth I feel distinctly like taking a bath.” Similar sentiments have greeted 21st-century street lit. In a 2006 New York Times Op-Ed essay, the journalist and author Nick Chiles decried “the sexualization and degradation of black fiction.” African-American bookstores, Chiles complained, are “overrun with novels that . . . appeal exclusively to our most prurient natures — as if these nasty books were pairing off back in the stockrooms like little paperback rabbits and churning out even more graphic offspring that make Ralph Ellison books cringe into a dusty corner.”

Copulating paperbacks aside, it’s clear that the street-lit debate is about more than literature, touching on questions of paternalism versus populism, and on middle-class anxieties about the black underclass. “It’s part and parcel of black elites’ efforts to define not only a literary tradition, but a racial politics,” said Kinohi Nishikawa, an assistant professor of English and African-American Studies at Princeton University. “There has always been a sense that because African-Americans’ opportunities to represent themselves are so limited in the first place, any hint of criminality or salaciousness would necessarily be a knock on the entire racial politics. One of the pressing debates about African-American literature today is: If we can’t include writers like Ashley & JaQuavis, to what extent is the foundation of our thinking about black literature faulty? Is it just a literature for elites? Or can it be inclusive, bringing urban fiction under the purview of our umbrella term ‘African-American literature’?”

Defenders of street lit note that the genre has a pedigree: a tradition of black pulp fiction that stretches from Chester Himes, the midcentury author of hardboiled Harlem detective stories, to the 1960s and ’70s “ghetto fiction” of Iceberg Slim and Donald Goines, to the current wave of urban fiction authors. Others argue for street lit as a social good, noting that it attracts a large audience that might otherwise never read at all. Scholars like Nishikawa link street lit to recent studies showing increased reading among African-Americans. A 2014 Pew Research Center report found that a greater percentage of black Americans are book readers than whites or Latinos.

For their part, the Colemans place their work in the broader black literary tradition. “You have Maya Angelou, Alice Walker, James Baldwin — all of these traditional black writers, who wrote about the struggles of racism, injustice, inequality,” says Ashley. “We’re writing about the struggle as it happens now. It’s just a different struggle. I’m telling my story. I’m telling the struggle of a black girl from Flint, Michigan, who grew up on welfare.”

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Perhaps there is a high-minded case to be made for street lit. But the virtues of Ashley & JaQuavis’s work are more basic. Their novels do lack literary polish. The writing is not graceful; there are passages of clunky exposition and sex scenes that induce guffaws and eye rolls. But the pleasure quotient is high. The books flaunt a garish brand of feminism, with women characters cast not just as vixens, but also as gangsters — cold-blooded killers, “murder mamas.” The stories are exceptionally well-plotted. “The Cartel” opens by introducing its hero, the crime boss Carter Diamond; on page 9, a gunshot spatters Diamond’s brain across the interior of a police cruiser. The book then flashes back seven years and begins to hurtle forward again — a bullet train, whizzing readers through shifting alliances, romantic entanglements and betrayals, kidnappings, shootouts with Haitian and Dominican gangsters, and a cliffhanger closing scene that leaves the novel’s heroine tied to a chair in a basement, gruesomely tortured to the edge of death. Ashley & JaQuavis’s books are not Ralph Ellison, certainly, but they build up quite a head of steam. They move.

The Colemans are moving themselves these days. They recently signed a deal with St. Martin’s Press, which will bring out the next installment in the “Cartel” series as well as new solo series by both writers. The St. Martin’s deal is both lucrative and legitimizing — a validation of Ashley and JaQuavis’s work by one of publishing’s most venerable houses. The Colemans’ ambitions have grown, as well. A recent trilogy, “Murderville,” tackles human trafficking and the blood-diamond industry in West Africa, with storylines that sweep from Sierra Leone to Mexico to Los Angeles. Increasingly, Ashley & JaQuavis are leaning on research — traveling to far-flung settings and hitting the books in the libraries — and spending less time mining their own rough-and-tumble past.

But Flint remains a source of inspiration. One evening not long ago, JaQuavis led me on a tour of his hometown: a popular roadside bar; the parking lot where he met the undercover cop for the ill-fated drug deal; Ashley’s old house, the site of his almost-arrest. He took me to a ramshackle vehicle repair shop on Flint’s west side, where he worked as a kid, washing cars. He showed me a bathroom at the rear of the garage, where, at age 12, he sneaked away to inspect the first “boulder” of crack that he ever sold. A spray-painted sign on the garage wall, which JaQuavis remembered from his time at the car wash, offered words of warning:

WHAT EVERY YOUNG MAN SHOULD KNOW
ABOUT USING A GUN:
MURDER . . . 30 Years
ARMED ROBBERY . . . 15 Years
ASSAULT . . . 15 Years
RAPE . . . 20 Years
POSSESSION . . . 5 Years
JACKING . . . 20 YEARS

“We still love Flint, Michigan,” JaQuavis says. “It’s so seedy, so treacherous. But there’s some heart in this city. This is where it all started, selling books out the box. In the days when we would get those little $40,000 advances, they’d send us a couple boxes of books for free. We would hit the streets to sell our books, right out of the car trunk. It was a hustle. It still is.”

One old neighborhood asset that the Colemans have not shaken off is swagger. “My wife is the best female writer in the game,” JaQuavis told me. “I believe I’m the best male writer in the game. I’m sleeping next to the best writer in the world. And she’s doing the same.”

Under Mr. Michelin’s leadership, which ended when he left the company in 2002, the Michelin Group became the world’s biggest tire maker, establishing a big presence in the United States and other major markets overseas.

Ms. Meadows was the older sister of Audrey Meadows, who played Alice Kramden on “The Honeymooners.”

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.

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Obama Speaks of a ‘Sense of Unfairness’

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.”

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.”

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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.”

At the National Institutes of Health, Dr. Suzman’s signature accomplishment was the central role he played in creating a global network of surveys on aging.

Ms. Turner and her twin sister founded the Love Kitchen in 1986 in a church basement in Knoxville, Tenn., and it continues to provide clothing and meals.

Even as a high school student, Dave Goldberg was urging female classmates to speak up. As a young dot-com executive, he had one girlfriend after another, but fell hard for a driven friend named Sheryl Sandberg, pining after her for years. After they wed, Mr. Goldberg pushed her to negotiate hard for high compensation and arranged his schedule so that he could be home with their children when she was traveling for work.

Mr. Goldberg, who died unexpectedly on Friday, was a genial, 47-year-old Silicon Valley entrepreneur who built his latest company, SurveyMonkey, from a modest enterprise to one recently valued by investors at $2 billion. But he was also perhaps the signature male feminist of his era: the first major chief executive in memory to spur his wife to become as successful in business as he was, and an essential figure in “Lean In,” Ms. Sandberg’s blockbuster guide to female achievement.

Over the weekend, even strangers were shocked at his death, both because of his relatively young age and because they knew of him as the living, breathing, car-pooling center of a new philosophy of two-career marriage.

“They were very much the role models for what this next generation wants to grapple with,” said Debora L. Spar, the president of Barnard College. In a 2011 commencement speech there, Ms. Sandberg told the graduates that whom they married would be their most important career decision.

In the play “The Heidi Chronicles,” revived on Broadway this spring, a male character who is the founder of a media company says that “I don’t want to come home to an A-plus,” explaining that his ambitions require him to marry an unthreatening helpmeet. Mr. Goldberg grew up to hold the opposite view, starting with his upbringing in progressive Minneapolis circles where “there was woman power in every aspect of our lives,” Jeffrey Dachis, a childhood friend, said in an interview.

The Goldberg parents read “The Feminine Mystique” together — in fact, Mr. Goldberg’s father introduced it to his wife, according to Ms. Sandberg’s book. In 1976, Paula Goldberg helped found a nonprofit to aid children with disabilities. Her husband, Mel, a law professor who taught at night, made the family breakfast at home.

Later, when Dave Goldberg was in high school and his prom date, Jill Chessen, stayed silent in a politics class, he chastised her afterward. He said, “You need to speak up,” Ms. Chessen recalled in an interview. “They need to hear your voice.”

Years later, when Karin Gilford, an early employee at Launch Media, Mr. Goldberg’s digital music company, became a mother, he knew exactly what to do. He kept giving her challenging assignments, she recalled, but also let her work from home one day a week. After Yahoo acquired Launch, Mr. Goldberg became known for distributing roses to all the women in the office on Valentine’s Day.

Ms. Sandberg, who often describes herself as bossy-in-a-good-way, enchanted him when they became friendly in the mid-1990s. He “was smitten with her,” Ms. Chessen remembered. Ms. Sandberg was dating someone else, but Mr. Goldberg still hung around, even helping her and her then-boyfriend move, recalled Bob Roback, a friend and co-founder of Launch. When they finally married in 2004, friends remember thinking how similar the two were, and that the qualities that might have made Ms. Sandberg intimidating to some men drew Mr. Goldberg to her even more.

Over the next decade, Mr. Goldberg and Ms. Sandberg pioneered new ways of capturing information online, had a son and then a daughter, became immensely wealthy, and hashed out their who-does-what-in-this-marriage issues. Mr. Goldberg’s commute from the Bay Area to Los Angeles became a strain, so he relocated, later joking that he “lost the coin flip” of where they would live. He paid the bills, she planned the birthday parties, and both often left their offices at 5:30 so they could eat dinner with their children before resuming work afterward.

Friends in Silicon Valley say they were careful to conduct their careers separately, politely refusing when outsiders would ask one about the other’s work: Ms. Sandberg’s role building Facebook into an information and advertising powerhouse, and Mr. Goldberg at SurveyMonkey, which made polling faster and cheaper. But privately, their work was intertwined. He often began statements to his team with the phrase “Well, Sheryl said” sharing her business advice. He counseled her, too, starting with her salary negotiations with Mark Zuckerberg.

“I wanted Mark to really feel he stretched to get Sheryl, because she was worth it,” Mr. Goldberg explained in a 2013 “60 Minutes” interview, his Minnesota accent and his smile intact as he offered a rare peek of the intersection of marriage and money at the top of corporate life.

While his wife grew increasingly outspoken about women’s advancement, Mr. Goldberg quietly advised the men in the office on family and partnership matters, an associate said. Six out of 16 members of SurveyMonkey’s management team are female, an almost unheard-of ratio among Silicon Valley “unicorns,” or companies valued at over $1 billion.

When Mellody Hobson, a friend and finance executive, wrote a chapter of “Lean In” about women of color for the college edition of the book, Mr. Goldberg gave her feedback on the draft, a clue to his deep involvement. He joked with Ms. Hobson that she was too long-winded, like Ms. Sandberg, but aside from that, he said he loved the chapter, she said in an interview.

By then, Mr. Goldberg was a figure of fascination who inspired a “where can I get one of those?” reaction among many of the women who had read the best seller “Lean In.” Some lamented that Ms. Sandberg’s advice hinged too much on marrying a Dave Goldberg, who was humble enough to plan around his wife, attentive enough to worry about which shoes his young daughter would wear, and rich enough to help pay for the help that made the family’s balancing act manageable.

Now that he is gone, and Ms. Sandberg goes from being half of a celebrated partnership to perhaps the business world’s most prominent single mother, the pages of “Lean In” carry a new sting of loss.

“We are never at 50-50 at any given moment — perfect equality is hard to define or sustain — but we allow the pendulum to swing back and forth between us,” she wrote in 2013, adding that they were looking forward to raising teenagers together.

“Fortunately, I have Dave to figure it out with me,” she wrote.