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Meech KJ, Ageorges N, A'Hearn MF, Arpigny C, Ates A, Aycock J, Bagnulo S, Bailey J, Barber R, Barrera L, Barrena R, Bauer JM, Belton MJS, Bensch F, Bhattacharya B, Biver N, Blake G, Bockelée-Morvan D, Boehnhardt H, Bonev BP, Bonev T, Buie MW, Burton MG, Butner HM, Cabanac R, Campbell R, Campins H, Capria MT, Carroll T, Chaffee F, Charnley SB, Cleis R, Coates A, Cochran A, Colom P, Conrad A, Coulson IM, Crovisier J, deBuizer J, Dekany R, de Léon J, Dello Russo N, Delsanti A, DiSanti M, Drummond J, Dundon L, Etzel PB, Farnham TL, Feldman P, Fernández YR, Filipovic MD, Fisher S, Fitzsimmons A, Fong D, Fugate R, Fujiwara H, Fujiyoshi T, Furusho R, Fuse T, Gibb E, Groussin O, Gulkis S, Gurwell M, Hadamcik E, Hainaut O, Harker D, Harrington D, Harwit M, Hasegawa S, Hergenrother CW, Hirst P, Hodapp K, Honda M, Howell ES, Hutsemékers D, Iono D, Ip WH, Jackson W, Jehin E, Jiang ZJ, Jones GH, Jones PA, Kadono T, Kamath UW, Käufl HU, Kasuga T, Kawakita H, Kelley MS, Kerber F, Kidger M, Kinoshita D, Knight M, Lara L, Larson SM, Lederer S, Lee CF, Levasseur-Regourd AC, Li JY, Li QS, Licandro J, Lin ZY, Lisse CM, LoCurto G, Lovell AJ, Lowry SC, Lyke J, Lynch D, Ma J, Magee-Sauer K, Maheswar G, Manfroid J, Marco O, Martin P, Melnick G, Miller S, Miyata T, Moriarty-Schieven GH, Moskovitz N, Mueller BEA, Mumma MJ, Muneer S, Neufeld DA, Ootsubo T, Osip D, Pandea SK, Pantin E, Paterno-Mahler R, Patten B, Penprase BE, Peck A, Petitas G, Pinilla-Alonso N, Pittichova J, Pompei E, Prabhu TP, Qi C, Rao R, Rauer H, Reitsema H, Rodgers SD, Rodriguez P, Ruane R, Ruch G, Rujopakarn W, Sahu DK, Sako S, Sakon I, Samarasinha N, Sarkissian JM, Saviane I, Schirmer M, Schultz P, Schulz R, Seitzer P, Sekiguchi T, Selman F, Serra-Ricart M, Sharp R, Snell RL, Snodgrass C, Stallard T, Stecklein G, Sterken C, Stüwe JA, Sugita S, Sumner M, Suntzeff N, Swaters R, Takakuwa S, Takato N, Thomas-Osip J, Thompson E, Tokunaga AT, Tozzi GP, Tran H, Troy M, Trujillo C, Van Cleve J, Vasundhara R, Vazquez R, Vilas F, Villanueva G, von Braun K, Vora P, Wainscoat RJ, Walsh K, Watanabe J, Weaver HA, Weaver W, Weiler M, Weissman PR, Welsh WF, Wilner D, Wolk S, Womack M, Wooden D, Woodney LM, Woodward C, Wu ZY, Wu JH, Yamashita T, Yang B, Yang YB, Yokogawa S, Zook AC, Zauderer A, Zhao X, Zhou X, Zucconi JM. Deep Impact: observations from a worldwide Earth-based campaign. Science 2005; 310:265-9. [PMID: 16150977 DOI: 10.1126/science.1118978] [Citation(s) in RCA: 158] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
On 4 July 2005, many observatories around the world and in space observed the collision of Deep Impact with comet 9P/Tempel 1 or its aftermath. This was an unprecedented coordinated observational campaign. These data show that (i) there was new material after impact that was compositionally different from that seen before impact; (ii) the ratio of dust mass to gas mass in the ejecta was much larger than before impact; (iii) the new activity did not last more than a few days, and by 9 July the comet's behavior was indistinguishable from its pre-impact behavior; and (iv) there were interesting transient phenomena that may be correlated with cratering physics.
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Affiliation(s)
- K J Meech
- Institute for Astronomy, University of Hawaii at Manoa, 2680 Woodlawn Drive, Honolulu, HI 96822, USA
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Melnick G, De Leon G, Thomas G, Kressel D, Wexler HK. Treatment process in prison therapeutic communities: motivation, participation, and outcome. Am J Drug Alcohol Abuse 2001; 27:633-50. [PMID: 11727881 DOI: 10.1081/ada-100107660] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Although the largest effects of prison-based therapeutic community (TC) programs are associated with entry into aftercare, only a minority of prisoners volunteer for these aftercare programs. The study addresses the gap in our knowledge concerning these low rates of voluntary entry. A theoretical formulation of the TC process involving the effect of the interaction of clients' motivation and participation in the activities of the TC on entry into aftercare was tested on a sample of 110 volunteers in a prison-based TC for whom there were client and staff ratings of 3-month participation and 12-month follow-up data on relapse and recidivism. Path analyses support a model in which the interaction of motivation and 3-month participation ratings have a direct effect on the selection of aftercare, and aftercare has a direct effect on relapse and recidivism. The use of a combination of enhanced motivation and early program participation as a means of increasing the utilization and effectiveness of aftercare is discussed.
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Affiliation(s)
- G Melnick
- Center for Therapeutic Community Research, National Development and Research Institutes, Inc., New York, New York, USA
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Abstract
The present study is the first report on a client-treatment matching protocol (CMP) to guide admissions to residential and outpatient substance abuse treatment settings. Two cohorts, a field test sample (n = 318) and cross-validation (n = 407) sample were drawn from consecutive admissions to nine geographically distributed multisetting therapeutic communities (TCs). A passive matching design was employed. Clients received the CMP on admission, but agencies were "blind" to the CMP treatment recommendation (i.e., match) and assigned clients to treatment by the usual intake procedures. Bivariate and logistical regression analyses show that positive treatment dispositions (treatment completion or longer retention in treatment)) were significantly higher among the CMP-matched clients. The present findings provide the empirical basis for studies assessing the validity and utility of the CMP with controlled designs. Though limited to TC-oriented agencies, the present research supports the use of objective matching criteria to improve treatment.
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Affiliation(s)
- G Melnick
- Center for Therapeutic Community Research at National Development and Research Institutes, Inc., 71 West 23rd Street, 8th Floor, New York, NY 10010, USA.
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Abstract
Over the past several decades, the pharmacologic and endoscopic treatment of peptic ulcer disease (PUD) has dramatically improved. To determine the effects of these and other changes on the operative management of PUD, we reviewed our surgical experience with gastroduodenal ulcers over the past 20 years. A computerized surgical database was used to analyze the frequencies of all operations for PUD performed in two training hospitals during four consecutive 5-year intervals beginning in 1980. Operative rates for both intractable and complicated PUD were compared with those for other general surgical procedures and operations for gastric malignancy. In the first 5-year period (1980 to 1984), a yearly average of 70 upper gastrointestinal operations were performed. This experience included 36 operations for intractability, 15 for hemorrhage, 12 for perforation, and seven for obstruction. During the same time span, 13 resections were performed annually for gastric malignancy. By the most recent 5-year interval (1994 to 1999), the total number of upper gastrointestinal operations had declined by 80% (14 cases), although the number of operations for gastric cancer had changed only slightly. Operations decreased most markedly for patients with intractability, but the prevalence of operations for bleeding, obstruction, and perforation was also decreased. We conclude that improved pharmacologic and endoscopic approaches have progressively curtailed the use of operative therapy for PUD. Elective surgery is now rarely indicated, and emergency operations are much less common. This changed paradigm poses new challenges for training and suggests different approaches for practice.
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Affiliation(s)
- W H Schwesinger
- Department of Surgery, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229-7842, U.S.A.
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Abstract
Evaluation research documents a firm relationship between retention and treatment outcomes among substance abusers in therapeutic communities (TCs). However, most admissions leave treatment prematurely, particularly in the first months after admission. This paper reports findings from a controlled study that assessed the efficacy of an intervention to reduce early dropout in a residential TC. In the "Senior Professor" (SP) intervention, the most experienced clinical and managerial staff in a TC program were utilized to conduct program induction seminars during the first weeks of admissions, traditionally the period of the highest rate of dropout. Rates of short-term retention (30 days of treatment) were compared for the experimental cohort (N=362), who received the intervention, and a cohort of admissions (N=243), who received standard or non-enhanced treatment. Findings showed that the SP intervention significantly reduced the likelihood of early dropout compared with controls. The enhanced effects are most evident for the new inductees with the lowest levels of motivation. Some theoretical and clinical implications are discussed as to the utilization of experienced staff to increase retention among new inductees with relatively lower motivational levels, who are at greatest risk for early dropout.
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Affiliation(s)
- G De Leon
- Center for Therapeutic Community Research (CTCR) at National Development and Research Institutes, Inc. (NDRI), 16th Floor, 2 World Trade Center, New York, NY 10048, USA.
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Abstract
This study addresses the need to describe the diversity of therapeutic community (TC) programs. The Survey of Essential Elements Questionnaire (SEEQ) was used to develop a typology of TC programs based on 19 programs that identified themselves as traditional or modified TCs in the Drug Abuse Treatment Outcome Studies (DATOS). These traditional and modified TCs differed in adherence to the elements of TC treatment, on operational characteristics, and in client mix. Differences in treatment philosophy and approach included the emphasis on self-reliance, and the use of work as a therapeutic agent for traditional TCs. There were also trends for traditional TC programs to utilize community-as-method, provide educational and vocational training, and include family members as part of therapy. Modified programs showed a greater tendency to rely on counselors. Implications of the findings for program quality, health care policy, and research are discussed.
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Affiliation(s)
- G Melnick
- Center for Therapeutic Community Research at National Development and Research Institutes, Inc., New York, New York 10048, USA.
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Abstract
Current research concludes that participation in postprison aftercare is critical to the effectiveness of prison-based therapeutic community (TC) treatment. This conclusion makes it imperative to understand the client determinants of retention in prison treatment, particularly continuance in postprison aftercare. Currently, however, little data exist as to client predictors of seeking and remaining in prison-based TCs or entering postrelease aftercare. In the present study, significant relationships were obtained between initial motivation (i.e., Circumstances, Motivation, Readiness [CMR] scores), retention, aftercare, and outcomes in a sample of substance abusers treated in a prison-based TC program. Implications are discussed for theory, research, and treatment policy.
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Affiliation(s)
- G De Leon
- Center for Therapeutic Community Research at NDRI, Incorporated, New York, New York 10048, USA
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Abstract
This study reports on the extent to which Therapeutic Community (TC) agencies share a common set of beliefs about the essential elements of TC treatment. The Survey of Essential Elements Questionnaire (SEEQ), a TC theory-based instrument, was used in a field survey of 59 directors of agencies identified as TCs through their membership in Therapeutic Communities of America (TCA). Results showed a high degree of concordance in the perceived importance of a common set of treatment elements identified as essential to the TC modality. Two clusters of TC-oriented agencies, identified as Traditional and Modified, were determined based on beliefs in the importance of the elements. Results were seen as validating the TC formulation from which the SEEQ items were drawn. Implications on the potential use of the SEEQ as a means of codifying TC treatment for research, training, and quality assurance are discussed.
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Affiliation(s)
- G Melnick
- Center for Therapeutic Community Research at NDRI, New York, NY.
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Abstract
Dramatic changes in hospitals' operating environments are leading to major restructuring of hospital organizations. Hospital mergers and acquisitions are increasing each year, and conversions by hospitals to different forms of ownership also are continuing apace. Such changes require policymakers and regulators to develop and implement policies to ensure that consumers' interests are protected. An important consideration in this process is the impact on the price of hospital care following such transactions. This paper reviews empirical evidence that mergers that reduce competition will lead to price increases at both merging hospitals and their competitors, regardless of ownership status. We show that nonprofit and government hospitals have steadily become more willing to raise prices to exploit market power and discuss the implications for antitrust regulators and agencies that must approve nonprofit conversions.
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Affiliation(s)
- G Melnick
- University of Southern California, USA
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Abstract
Has the nature of hospital competition changed from a medical arms race in which hospitals compete for patients by offering their doctors high quality services to a price war for the patients of payors? This paper uses time-series cross-sectional methods on California hospital discharge data from 1986-1994 to show the association of hospital prices with measures of market concentration changed steadily over this period, with prices now higher in less competitive areas, even for non-profit hospitals. Regression results are used to simulate the price impact of hypothetical hospital mergers.
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Melnick G, De Leon G, Hawke J, Jainchill N, Kressel D. Motivation and readiness for therapeutic community treatment among adolescents and adult substance abusers. Am J Drug Alcohol Abuse 1997; 23:485-506. [PMID: 9366969 DOI: 10.3109/00952999709016891] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A growing body of research has demonstrated the importance of motivation and readiness among drug abusers in seeking, complying with, and remaining in treatment. To date, however, there is little research on these factors among adolescent substance abusers. The present study reports findings from a large scale investigation of motivation and readiness differences across adolescent (range = 14-18 years, n > 1000) and adult (range = 19-26 + years, n > 1400) admissions to residential therapeutic communities (TCs). Data were collected with an instrument assessing circumstances, motivation, readiness, and suitability for TC treatment (i.e., CMRS). Results showed that: (1) there is a significant positive linear relationship between CMRS scores and age; (2) the CMRS scores were the largest and most consistent predictors of short term retention across all age groups. Although confined to TC samples, the present findings support clinical observations that adolescent drug abusers are less motivated to change or ready for treatment than adults; and they confirm the importance of motivational and readiness factors in the treatment process, regardless of age.
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Affiliation(s)
- G Melnick
- Center for Therapeutic Community Research, National Development Research Institutes, Inc. (NDRI), New York, New York, USA
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De Leon G, Melnick G, Kressel D. Motivation and readiness for therapeutic community treatment among cocaine and other drug abusers. Am J Drug Alcohol Abuse 1997; 23:169-89. [PMID: 9143632 DOI: 10.3109/00952999709040940] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
There is currently little empirical research on the effect of motivation and readiness on the treatment of different groups of substance abusers. In the present study, the CMRS scales are used to assess motivation and readiness for treatment of a large sample of primary alcohol, marijuana, heroin, cocaine, and crack cocaine abusers admitted to a long-term residential therapeutic community. Findings show few significant differences in overall retention or initial motivation and readiness. Initial motivation and readiness scores persist as significant predictors of short-term retention in treatment across most groups. Findings support the TC perspective that the substance abuse problem is the person, not the drug of choice, and are consistent with prior research emphasizing the importance of dynamic rather than fixed variables as determinants of retention.
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Affiliation(s)
- G De Leon
- Center for Therapeutic Community Research, National Development and Research Institutes, Inc. (NDRI) New York, New York, USA
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Abstract
This Data Watch examines the impact of hospital competition, the Medicare prospective payment system (PPS), and Medi-Cal selective contracting on the provision of uncompensated care by private hospitals in California during 1980-1989. It finds that hospitals subject to more intense competition and greater fiscal pressure from Medicare and Medi-Cal reduced their provision of uncompensated care relative to hospitals facing less pressure from these sources. We estimate that had hospitals not been subjected to increasing price competition from growth of managed care plans and financial tightening in public programs, they would have provided 36 percent more uncompensated care than was actually provided in 1989.
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Affiliation(s)
- J Mann
- RAND, Santa Monica, CA, USA
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Mann J, Melnick G, Bamezai A, Zwanziger J. Managing the safety net: hospital provision of uncompensated care in response to managed care. Adv Health Econ Health Serv Res 1994; 15:49-77. [PMID: 10163099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
MESH Headings
- California
- Economic Competition
- Economics, Hospital/statistics & numerical data
- Economics, Hospital/trends
- Emergency Service, Hospital/organization & administration
- Health Services Research
- Hospitals, County/economics
- Hospitals, County/statistics & numerical data
- Hospitals, Private/economics
- Hospitals, Private/statistics & numerical data
- Hospitals, Proprietary/economics
- Hospitals, Proprietary/statistics & numerical data
- Hospitals, Teaching/economics
- Hospitals, Teaching/statistics & numerical data
- Managed Care Programs/economics
- Medicaid/organization & administration
- Medicare/organization & administration
- Private Sector
- State Health Plans/economics
- State Health Plans/organization & administration
- Uncompensated Care/statistics & numerical data
- Uncompensated Care/trends
- United States
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Affiliation(s)
- J Mann
- Rand Corporation, Santa Monica, CA, USA
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De Leon G, Melnick G, Kressel D, Jainchill N. Circumstances, motivation, readiness, and suitability (the CMRS scales): predicting retention in therapeutic community treatment. Am J Drug Alcohol Abuse 1994; 20:495-515. [PMID: 7832182 DOI: 10.3109/00952999409109186] [Citation(s) in RCA: 124] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Based upon clinical considerations, scales were developed measuring client perceptions across four interrelated domains: circumstances (external pressures), motivation (intrinsic pressures), readiness, and suitability (CMRS) for residential TC treatment. This paper, the first in a series, reports findings on the reliability of the CMRS and its validity as a predictor of retention in TC treatment in three cohorts of consecutive admissions to a long-term residential TC. The main findings show that: (a) discriminant and factor analyses confirm the face validity of the original four rationale scales; (b) scores distribute into four groups, with most clients in the moderately low to moderately high range; (c) two cross-validation studies confirm the internal consistency of the scales, and a linear relationship between the separate and total CMRS scores and short-term retention in all three cohorts and long-term retention in two cohorts. The present psychometric study provides impressive findings on the reliability and validity of the CMRS scales as predictors of retention in long-term TCs. Although still considered experimental, awaiting replicational studies and firm conclusions concerning generalizability, the CMRS holds considerable promise for research, theory, and practice.
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Affiliation(s)
- G De Leon
- Center for Therapeutic Community Research (CTCR), National Development and Research Institutes, Inc. (NDRI), New York 10013
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Abstract
The definition of geographic and product markets is a critical aspect of any antitrust analysis. This paper argues for a different approach to market definition in areas where insurance plans that contract selectively are a significant market presence. Such a proposed approach is described and some policy implications are drawn.
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De Leon G, Melnick G, Schoket D, Jainchill N. Is the therapeutic community culturally relevant? Findings on race/ethnic differences in retention in treatment. J Psychoactive Drugs 1993; 25:77-86. [PMID: 8483051 DOI: 10.1080/02791072.1993.10472594] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The therapeutic community (TC) views cultural diversity as an essential ingredient in its treatment approach. However, based on clinical observation and some research, questions persist concerning the relevance of TC programming for numerical race/ethnic minorities. This article briefly reviews pertinent research and presents findings from recent studies on race/ethnic differences in readiness and suitability for, and retention in, TC treatment. A framework is outlined for the empirical study of cultural relevance issues in TCs.
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Affiliation(s)
- G De Leon
- Center for Therapeutic Community Research, New York, New York 10013
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Keckley PH, Carlson LK, Coile RC, Fulton J, Arnot B, Melnick G, Sweeney P. The future of healthcare. Seven experts look ahead. Profiles Healthc Mark 1992:2-12. [PMID: 10122990] [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: 02/11/2023]
Abstract
If there were ever a time to have a crystal ball, it's now. In today's healthcare environment the only thing that seems certain is change. To help marketers make some educated guesses about the future of healthcare, hospitals, and the market, PROFILES invited seven experts to prognosticate. They considered what might happen in this decade, and what could be reality in 25 to 50 years. They address topics ranging from surgery of the future to how consumers will find healthcare information. Here are a few of their predictions: 1. Managed care will dominate the market. 2. More hospitals will close. Those remaining will consolidate or collaborate and draw closer to their communities. 3. Doctors and hospitals will build partnerships. More doctors will be salaried. 4. Cost controls will increase. 5. Quality will differentiate hospitals and drive marketing. 6. Patients will become more involved in their care and in their selection of hospitals. 7. Drug treatments will play an increased role as surgery declines.
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Coye MJ, Powers P, Kerr CE, Noce WW, Werdegar D, Corlin RF, Melnick G. State of the state's health care. Calif Hosp 1992; 6:10-9. [PMID: 10116457] [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: 02/11/2023]
Abstract
California leaders tell us what's right and what's wrong with our health care system. While consensus on health care reform is far from being reached, all agree that universal access, cost control and preventive services must be part of any health reform plan.
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Affiliation(s)
- M J Coye
- California Department of Health Services
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Melnick G, Zwanziger J. Competition lowers cost at California hospitals. Interview by Alden Solovy. Hospitals 1989; 63:56-8. [PMID: 2909475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Perlman BB, Kentera A, Melnick G, Wile L. The aging of caretakers of those with chronic mental illness. N Y State J Med 1988; 88:351-2. [PMID: 3405510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Byerly WG, Melnick G, Barone JA. A formula for calculating the dosages of drugs in emergencies. JAMA 1987; 257:3069-70. [PMID: 3586225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Stein TP, Settle RG, Albina JA, Dempsey DT, Melnick G. Metabolism of nonessential 15N-labeled amino acids and the measurement of human whole-body protein synthesis rates. J Nutr 1986; 116:1651-9. [PMID: 3761022 DOI: 10.1093/jn/116.9.1651] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Eight 15N-labeled nonessential amino acids plus 15NH4Cl were administered over a 10-h period to four healthy adult males using a primed-constant dosage regimen. The amount of 15N excreted in the urine and the urinary ammonia, hippuric acid and plasma alanine 15N enrichments were measured. There was a high degree of consistency across subjects in the ordering of the nine compounds based on the fraction of 15N excreted (Kendall coefficient of concordance W = 0.83, P less than 0.01). Protein synthesis rates were calculated from the urinary ammonia plateau enrichment and the cumulative excretion of 15N. Glycine was one of the few amino acids that gave similar values by both methods.
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Abstract
This paper analyzes Congressional voting behavior on the Gephardt Amendment to President Carter's hospital cost containment legislation. The impact of opposing interest groups is examined: on one side were hospital and medical interest groups; on the other was the Carter Administration and its political party, as well as states with large Medicaid expenditures. The effect of political contributions from MEDPACs is evaluated, and the relative importance of various factors affecting the vote's outcome is analyzed.
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Edberg SC, Melnick G. The allergenic cross-reactivity of antisera made against different molecular weights of a homopolymer, dextran. Experientia 1974; 30:298-9. [PMID: 4132903 DOI: 10.1007/bf01934838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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