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Abbamonte JM, Sawhney M, Alcaide ML, Weiss SM, Kumar M, Asfar T, Jones DL. The association of HIV and cocaine use to cigarette smoking in the context of depression and perceived stress. AIDS Care 2020; 32:1229-1237. [PMID: 32539456 PMCID: PMC7529880 DOI: 10.1080/09540121.2020.1778627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 06/02/2020] [Indexed: 10/24/2022]
Abstract
Mental well-being can contribute to cigarette smoking and negatively impact disease progression among people living with HIV (PLWH). This study examined potential associations between cocaine use (COC), depression, and HIV status in predicting cigarette smoking; hypothesizing that depression would be highest in cocaine users and predict cigarette smoking. An exploratory analysis including stress was also examined as a potential predictor of cigarette use. More than half of the sample (65%) endorsed smoking at some point in the past, and 52% endorsed being current smokers at the time of the study. Smokers were most likely to be cocaine users (87.1%), cocaine using PLWH (74.3%), or PLWH (36.6%). Neither HIV status (χ2(1) = 1.5, p = .221), perceived stress (χ2(1) = 0.75 p = .386), nor depressive symptomatology (χ2(1) = 1.2, p = .274) were related to smoking. Non-cocaine users were approximately 95.4% less likely to smoke than cocaine users, controlling for all other variables. Overall, cocaine use was the greatest predictor of cigarette smoking and quantity of cigarettes smoked. Perceived stress and depression were not associated with cigarette smoking in the sample. Future interventions targeting cigarette use should include a cocaine-related component to encourage smoking cessation among this high-risk group.
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Affiliation(s)
- J M Abbamonte
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Sawhney
- Liffrig Family School of Education & Behavioral Sciences, University of Mary, Bismarck, ND, USA
| | - M L Alcaide
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - S M Weiss
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Kumar
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - T Asfar
- Department of Public Health, University of Miami Miller School of Medicine, Miami, FL, USA
| | - D L Jones
- Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
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Bernabe E, Marcenes W, Hernandez C, Bailey J, Abreu L, Alipour V, Amini S, Arabloo J, Arefi Z, Arora A, Ayanore M, Bärnighausen T, Bijani A, Cho D, Chu D, Crowe C, Demoz G, Demsie D, Dibaji Forooshani Z, Du M, El Tantawi M, Fischer F, Folayan M, Futran N, Geramo Y, Haj-Mirzaian A, Hariyani N, Hasanzadeh A, Hassanipour S, Hay S, Hole M, Hostiuc S, Ilic M, James S, Kalhor R, Kemmer L, Keramati M, Khader Y, Kisa S, Kisa A, Koyanagi A, Lalloo R, Le Nguyen Q, London S, Manohar N, Massenburg B, Mathur M, Meles H, Mestrovic T, Mohammadian-Hafshejani A, Mohammadpourhodki R, Mokdad A, Morrison S, Nazari J, Nguyen T, Nguyen C, Nixon M, Olagunju T, Pakshir K, Pathak M, Rabiee N, Rafiei A, Ramezanzadeh K, Rios-Blancas M, Roro E, Sabour S, Samy A, Sawhney M, Schwendicke F, Shaahmadi F, Shaikh M, Stein C, Tovani-Palone M, Tran B, Unnikrishnan B, Vu G, Vukovic A, Warouw T, Zaidi Z, Zhang Z, Kassebaum N. Global, Regional, and National Levels and Trends in Burden of Oral Conditions from 1990 to 2017: A Systematic Analysis for the Global Burden of Disease 2017 Study. J Dent Res 2020; 99:362-373. [PMID: 32122215 PMCID: PMC7088322 DOI: 10.1177/0022034520908533] [Citation(s) in RCA: 551] [Impact Index Per Article: 137.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Government and nongovernmental organizations need national and global estimates on the descriptive epidemiology of common oral conditions for policy planning and evaluation. The aim of this component of the Global Burden of Disease study was to produce estimates on prevalence, incidence, and years lived with disability for oral conditions from 1990 to 2017 by sex, age, and countries. In addition, this study reports the global socioeconomic pattern in burden of oral conditions by the standard World Bank classification of economies as well as the Global Burden of Disease Socio-demographic Index. The findings show that oral conditions remain a substantial population health challenge. Globally, there were 3.5 billion cases (95% uncertainty interval [95% UI], 3.2 to 3.7 billion) of oral conditions, of which 2.3 billion (95% UI, 2.1 to 2.5 billion) had untreated caries in permanent teeth, 796 million (95% UI, 671 to 930 million) had severe periodontitis, 532 million (95% UI, 443 to 622 million) had untreated caries in deciduous teeth, 267 million (95% UI, 235 to 300 million) had total tooth loss, and 139 million (95% UI, 133 to 146 million) had other oral conditions in 2017. Several patterns emerged when the World Bank’s classification of economies and the Socio-demographic Index were used as indicators of economic development. In general, more economically developed countries have the lowest burden of untreated dental caries and severe periodontitis and the highest burden of total tooth loss. The findings offer an opportunity for policy makers to identify successful oral health strategies and strengthen them; introduce and monitor different approaches where oral diseases are increasing; plan integration of oral health in the agenda for prevention of noncommunicable diseases; and estimate the cost of providing universal coverage for dental care.
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Affiliation(s)
| | - E. Bernabe
- E. Bernabe, Faculty of Dentistry, Oral and Craniofacial Sciences, King’s College London, Bessemer Road, London, SE5 9RS, UK.
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Ramlall Y, Andrion JJD, Cameron HU, Sawhney M. Examining pain before and after primary total knee replacement (TKR): A retrospective chart review. Int J Orthop Trauma Nurs 2019; 34:43-47. [PMID: 31272918 DOI: 10.1016/j.ijotn.2019.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 03/14/2019] [Accepted: 04/01/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The goal of total knee replacement is to improve function and reduce knee pain. The aim of this retrospective chart review was to assess the change in pain intensity from prior to TKR to after TKR at time of discharge from hospital. METHOD Consecutive charts of 595 patients who were discharged from the orthopaedic inpatient setting between January 2014 and July 2014 were reviewed. RESULTS The mean pre-operative pain intensity score was 7/10 (n = 473), and the mean pain intensity score prior to discharge from hospital was 3/10 (n = 548). Four hundred and fifty-six patients had both a pre-operative and pre-discharge pain intensity score documented; for those patients there was a significant change in pain intensity scores from prior to surgery to prior to discharge (p < 0.001). CONCLUSION Pain after TKR can be a limiting factor in rehabilitation activities. This retrospective chart review examined the pain intensity scores before and after primary TKR for patients in our facility. We found a significant difference in the pain intensity from before surgery to after surgery. However, further research needs to be conducted to examine the intensity and quality of pain as well as which analgesics patients are consuming after discharge from hospital at 6 weeks and 3 months.
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Affiliation(s)
- Y Ramlall
- Sunnybrook Holland Orthopaedic & Arthritic Centre, Toronto, Ontario, M4Y 1H1, Canada.
| | - J J D Andrion
- Sunnybrook Holland Orthopaedic & Arthritic Centre, Toronto, Ontario, M4Y 1H1, Canada; Department of Physical Therapy, University of Toronto, Toronto, Ontario, M4Y 1H1, Canada; Graduate Program in Health, York University, Toronto, Ontario, M4Y 1H1, Canada.
| | - H U Cameron
- Sunnybrook Holland Orthopaedic & Arthritic Centre, Toronto, Ontario, M4Y 1H1, Canada.
| | - M Sawhney
- School of Nursing, Queen's University, Kingston, Ontario, K7C 2N6, Canada.
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Smith MS, Cash B, Konda V, Trindade AJ, Gordon S, DeMeester S, Joshi V, Diehl D, Ganguly E, Mashimo H, Singh S, Jobe B, McKinley M, Wallace M, Komatsu Y, Thakkar S, Schnoll-Sussman F, Sharaiha R, Kahaleh M, Tarnasky P, Wolfsen H, Hawes R, Lipham J, Khara H, Pleskow D, Navaneethan U, Kedia P, Hasan M, Sethi A, Samarasena J, Siddiqui UD, Gress F, Rodriguez R, Lee C, Gonda T, Waxman I, Hyder S, Poneros J, Sharzehi K, Di Palma JA, Sejpal DV, Oh D, Hagen J, Rothstein R, Sawhney M, Berzin T, Malik Z, Chang K. Volumetric laser endomicroscopy and its application to Barrett's esophagus: results from a 1,000 patient registry. Dis Esophagus 2019; 32:5481776. [PMID: 31037293 PMCID: PMC6853704 DOI: 10.1093/dote/doz029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/08/2019] [Indexed: 12/11/2022]
Abstract
Volumetric laser endomicroscopy (VLE) uses optical coherence tomography (OCT) for real-time, microscopic cross-sectional imaging. A US-based multi-center registry was constructed to prospectively collect data on patients undergoing upper endoscopy during which a VLE scan was performed. The objective of this registry was to determine usage patterns of VLE in clinical practice and to estimate quantitative and qualitative performance metrics as they are applied to Barrett's esophagus (BE) management. All procedures utilized the NvisionVLE Imaging System (NinePoint Medical, Bedford, MA) which was used by investigators to identify the tissue types present, along with focal areas of concern. Following the VLE procedure, investigators were asked to answer six key questions regarding how VLE impacted each case. Statistical analyses including neoplasia diagnostic yield improvement using VLE was performed. One thousand patients were enrolled across 18 US trial sites from August 2014 through April 2016. In patients with previously diagnosed or suspected BE (894/1000), investigators used VLE and identified areas of concern not seen on white light endoscopy (WLE) in 59% of the procedures. VLE imaging also guided tissue acquisition and treatment in 71% and 54% of procedures, respectively. VLE as an adjunct modality improved the neoplasia diagnostic yield by 55% beyond the standard of care practice. In patients with no prior history of therapy, and without visual findings from other technologies, VLE-guided tissue acquisition increased neoplasia detection over random biopsies by 700%. Registry investigators reported that VLE improved the BE management process when used as an adjunct tissue acquisition and treatment guidance tool. The ability of VLE to image large segments of the esophagus with microscopic cross-sectional detail may provide additional benefits including higher yield biopsies and more efficient tissue acquisition. Clinicaltrials.gov NCT02215291.
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Affiliation(s)
- M S Smith
- Mount Sinai West & Mount Sinai St. Luke's Hospitals, New York, New York,Address correspondence to: Michael S. Smith, M.D., M.B.A., Chief of Gastroenterology and Hepatology, Mount Sinai West & Mount Sinai St. Luke's Hospitals, Ambulatory Care Center, Floor 13, 440 W. 114th Street, New York, NY 10025, USA.
| | - B Cash
- University of Texas Health Science Center at Houston, Houston, Texas
| | - V Konda
- Baylor University Medical Center, Dallas, Texas
| | - A J Trindade
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - S Gordon
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | | | - V Joshi
- University Medical Center at LSU, New Orleans, Louisiana
| | - D Diehl
- Geisinger Medical Center, Danville, Pennsylvania
| | - E Ganguly
- University of Vermont Medical Center, Burlington, Vermont
| | - H Mashimo
- VA Boston Health Care System, Boston, Massachusetts
| | - S Singh
- VA Boston Health Care System, Boston, Massachusetts
| | - B Jobe
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | - M McKinley
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York,ProHEALTHcare Associates, Lake Success, New York, New York
| | | | - Y Komatsu
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | - S Thakkar
- Allegheny Health Network, Pittsburgh, Pennsylvania
| | | | - R Sharaiha
- Weill Cornell Medicine, New York, New York
| | - M Kahaleh
- Robert Wood Johnson University Hospital, New Brunswick, New Jersey
| | | | | | - R Hawes
- Florida Hospital, Orlando, Florida
| | - J Lipham
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - H Khara
- Geisinger Medical Center, Danville, Pennsylvania
| | - D Pleskow
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | - P Kedia
- Methodist Health System, Dallas, Texas
| | - M Hasan
- Florida Hospital, Orlando, Florida
| | - A Sethi
- Columbia University Medical Center, New York, New York
| | | | | | - F Gress
- Columbia University Medical Center, New York, New York
| | - R Rodriguez
- University of South Alabama, Mobile, Alabama
| | - C Lee
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - T Gonda
- Columbia University Medical Center, New York, New York
| | - I Waxman
- Chicago Medicine, Chicago, Illinois
| | - S Hyder
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - J Poneros
- Columbia University Medical Center, New York, New York
| | - K Sharzehi
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - J A Di Palma
- University of Texas Health Science Center at Houston, Houston, Texas
| | - D V Sejpal
- Zucker School of Medicine at Hofstra/Northwell, Northwell Health System Manhasset, New York
| | - D Oh
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - J Hagen
- University of Southern California, Keck School of Medicine, Los Angeles, California
| | - R Rothstein
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
| | - M Sawhney
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - T Berzin
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Z Malik
- Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania
| | - K Chang
- UC Irvine Medical Center, Irvine, California
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Gu S, Xu X, Shi L, Sawhney M, Hu H, Dong H. Cost Minimization Analysis Of Clinical Option Scenarios For Metformin And Acarbose In Treatment Of Type 2 Diabetes: Based On Direct And Indirect Treatment Comparison Results. Value Health 2014; 17:A745. [PMID: 27202690 DOI: 10.1016/j.jval.2014.08.165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S Gu
- Zhejiang University School of Medicine, School of Public Health, Hangzhou, China
| | - X Xu
- Bristol-Myers Squibb, Shanghai, China
| | - L Shi
- Tulane University, New Orleans, LA, USA
| | - M Sawhney
- Marshall University, Huntington, WV, USA
| | - H Hu
- Zhejiang University School of Medicine, School of Public Health, Hangzhou, China
| | - H Dong
- Zhejiang University School of Medicine, School of Public Health, Hangzhou, China
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Katzman PJ, Wang B, Sawhney M, Wang N. Differential detection of deletion 22q11.2 syndrome by specialty and indication. Pediatr Dev Pathol 2005; 8:557-67. [PMID: 16222476 DOI: 10.1007/s10024-005-0056-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Accepted: 08/01/2005] [Indexed: 10/25/2022]
Abstract
This study identified cytogenetic abnormalities in a population screened for deletion 22q11.2 syndrome (D22S) by fluorescence in situ hybridization (FISH) and G-banding and correlated these abnormalities to referring specialty and submitted indications. Requests for the D22S FISH assay were retrospectively reviewed over a 29-month period in our institution. Positive test results for D22S FISH and other abnormalities found by other FISH assays and G-banding were correlated to submitting specialist and indication. Thirteen medical services ordered D22S FISH testing on 297 patients over 29 months. The detection rate for all cytogenetic aberrations was 9.4% (28 of 297) including 5.4% (16 of 297) for D22S detection by FISH and 2.7% (8 of 297) for detection of additional cytogenetic anomalies by G-banding cytogenetics. Sixty-six of 297 patients negative by D22S FISH and G-banding were screened using other FISH assays and 3 of 47 (6.4%) patients screened using subtelomeric probes were positive for deletion and 1 of 3 (33%) patients screened for Prader-Willi syndrome was positive for deletion. Pediatric geneticists requested 53.9% (160 of 297) of the tests, yielding 60.7% (17 of 28) of positive test results. Tetralogy of Fallot and developmental delay were the indications associated with the most positive test results. In our institution, pediatric geneticists identify the largest spectrum of indications with D22S and appear most aware of the association of developmental delay with D22S. Performing conventional cytogenetics and other FISH assays, in addition to FISH for D22S, is important because there is considerable overlap between D22S and the phenotype of several other syndromes.
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Affiliation(s)
- P J Katzman
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Rochester, New York 14642, USA.
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Sawhney M, Anand R. Chronic pelvic inflammatory disease and melasma in women. Indian J Dermatol Venereol Leprol 2003; 69:251-2. [PMID: 17642906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
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Sawhney M, Sharma YK, Gera V, Jetley S. Ichthyosiform sarcoidosis following chemotherapy of Hodgkin's disease. Indian J Dermatol Venereol Leprol 2003; 69:220-2. [PMID: 17642892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Acquired ichthyosis in adults may reflect internal disease, viz. internal malignancy, especially Hodgkin's lymphoma or sarcoidosis. We report a patient who developed ichthyosiform sarcoidosis over a year after completion of 6 cycles of combination chemotherapy for Hodgkin's disease. To our knowledge, the development of ichthyosiform sarcoidosis after chemotherapy for Hodgkin's disease has not been described earlier.
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Affiliation(s)
- M Sawhney
- Department of Dermatology and STD, Command Hospital, Pune-411 040.
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Sawhney M. Don't homogenize, synchronize. Harv Bus Rev 2001; 79:100-145. [PMID: 11447610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To be more responsive to customers, companies often break down organizational walls between their units--setting up all manner of cross-business and cross-functional task forces and working groups and promoting a "one-company" culture. But such attempts can backfire terribly by distracting business and functional units and by contaminating their strategies and processes. Fortunately, there's a better way, says the author. Rather than tear down organizational walls, a company can make them permeable to information. It can synchronize all its data on products, filtering the information through linked databases and applications and delivering it in a coordinated, meaningful form to customers. As a result, the organization can present a single, unified face to the customer--one that can change as market conditions warrant--without imposing homogeneity on its people. Such synchronization can lead not just to stronger customer relationships and more sales but also to greater operational efficiency. It allows a company, for example, to avoid the high costs of maintaining many different information systems with redundant data. The decoupling of product control from customer control in a synchronized company reflects a fundamental fact about business: While companies have to focus on creating great products, customers think in terms of the activities they perform and the benefits they seek. For companies, products are ends, but for customers, products are means. The disconnect between how customers think and how companies organize themselves is what leads to inefficiencies and missed opportunities, and that's exactly the problem that synchronization solves. Synchronized companies can get closer to customers, sustain product innovation, and improve operational efficiency--goals that have traditionally been very difficult to achieve simultaneously.
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Sawhney M, Parikh D. Where value lives in a networked world. Harv Bus Rev 2001; 79:79-175. [PMID: 11189465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
While many management thinkers proclaim an era of radical uncertainty, authors Sawhney and Parikh assert that the seemingly endless upheavals of the digital age are more predictable than that: today's changes have a common root, and that root lies in the nature of intelligence in networks. Understanding the patterns of intelligence migration can help companies decipher and plan for the inevitable disruptions in today's business environment. Two patterns in network intelligence are reshaping industries and organizations. First, intelligence is decoupling--that is, modern high-speed networks are pushing back-end intelligence and front-end intelligence toward opposite ends of the network, making the ends the two major sources of potential profits. Second, intelligence is becoming more fluid and modular. Small units of intelligence now float freely like molecules in the ether, coalescing into temporary bundles whenever and wherever necessary to solve problems. The authors present four strategies that companies can use to profit from these patterns: arbitrage allows companies to move intelligence to new regions or countries where the cost of maintaining intelligence is lower; aggregation combines formerly isolated pieces of infrastructure intelligence into a large pool of shared infrastructure provided over a network; rewiring allows companies to connect islands of intelligence by creating common information backbones; and reassembly allows businesses to reorganize pieces of intelligence into coherent, personalized packages for customers. By being aware of patterns in network intelligence and by acting rather than reacting, companies can turn chaos into opportunity, say the authors.
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Affiliation(s)
- M Sawhney
- E-Commerce and Technology Group, Northwestern University, USA
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Kaplan S, Sawhney M. E-hubs: the new B2B (business-to-business) marketplaces. Harv Bus Rev 2000; 78:97-214. [PMID: 11183982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Electronic hubs--Internet-based intermediaries that host electronic marketplaces and mediate transactions among businesses--are generating a lot of interest. Companies like Ariba, Chemdex, and Commerce One have already attained breathtaking stock market capitalizations. Venture capitalists are pouring money into more business-to-business start-ups. Even industrial stalwarts like GM and Ford are making plans to set up their own Web markets. As new entrants with new business models pour into the business-to-business space, it's increasingly difficult to make sense of the landscape. This article provides a blueprint of the e-hub arena. The authors start by looking at the two dimensions of purchasing: what businesses buy--manufacturing inputs or operating inputs--and how they buy--through systematic sourcing or spot sourcing. They classify B2B e-hubs into four categories: MRO hubs, yield managers, exchanges, and catalog hubs, and they discuss each type in detail. Drilling deeper into this B2B matrix, the authors look at how e-hubs create value--through aggregation and matching--and explain when each mechanism works best. They also examine the biases of e-hubs. Although many e-hubs are neutral--they're operated by independent third parties--some favor the buyers or sellers. The authors explain the differences and discuss the pros and cons of each position. The B2B marketplace is changing rapidly. This framework helps buyers, sellers, and market makers navigate the landscape by explaining what the different hubs do and how they add the most value.
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