42 results on '"Ranz J"'
Search Results
2. The Use of Wireless Sensor Networks to Monitor the Setting and Hardening Processes of Self-Compacting Concrete
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Aparicio, S., Fuente, J. V., Ranz, J., Aliques, J., Izquierdo, M. A. G., Fernández, R., Büyüköztürk, Oral, Taşdemir, Mehmet Ali, Güneş, Oğuz, editor, and Akkaya, Yılmaz, editor
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- 2013
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3. Monitoring of the curing process in precast concrete slabs: an experimental study
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Ranz, J., Aparicio, S., Fuente, J.V., Anaya, J.J., and Hernandez, M.G.
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Concrete -- Analysis -- Mechanical properties ,Sensors -- Usage ,Business ,Construction and materials industries - Abstract
ABSTRACT In this paper a methodology for the quality control of the curing process in precast concrete plants is presented by non-destructive testing techniques. This methodology consists on a remote [...]
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- 2016
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4. The Use of Wireless Sensor Networks to Monitor the Setting and Hardening Processes of Self-Compacting Concrete
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Aparicio, S., primary, Fuente, J. V., additional, Ranz, J., additional, Aliques, J., additional, Izquierdo, M. A. G., additional, and Fernández, R., additional
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- 2011
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5. 269 BONE MINERAL DENSITY IN YOUNG GYMNASTS AND SWIMMERS
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Cassell, C., Benedict, M., Uetrect, G., Ranz, J., Ho, M., and Specker, B.
- Published
- 1993
6. Microstructural and mechanical properties study of the curing process of self-compacting concrete
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Aparicio, S., primary, Martínez-Ramírez, S., additional, Ranz, J., additional, Fuente, J.V., additional, and Hernández, M.G., additional
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- 2016
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7. Non-destructive monitoring of curing process in precast concrete
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Aparicio, S, primary, Ranz, J, additional, Fernández, R, additional, Albert, V, additional, Fuente, J V, additional, and Hernández, M G, additional
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- 2012
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8. Genome clashes in hybrids: insights from gene expression
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Landry, C R, primary, Hartl, D L, additional, and Ranz, J M, additional
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- 2007
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9. (705)
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Kashikar-Zuck, S., primary, Ho, I., additional, Lynch, A., additional, Graham, T., additional, Ranz, J., additional, Malblanc, R., additional, Mullen, S., additional, Powers, S., additional, Lovell, D., additional, Passo, M., additional, Bean, J., additional, and Arnold, L., additional
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- 2006
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10. Calcium supplementation during lactation and afterward
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KALKWARF, H, primary, SPECKCR, B, additional, BIANCHI, D, additional, RANZ, J, additional, and HO, M, additional
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- 1998
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11. How malleable is the eukaryotic genome? Extreme rate of chromosomal rearrangement in the genus Drosophila.
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Ranz, J M, Casals, F, and Ruiz, A
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During the evolution of the genus Drosophila, the molecular organization of the major chromosomal elements has been repeatedly rearranged via the fixation of paracentric inversions. Little detailed information is available, however, on the extent and effect of these changes at the molecular level. In principle, a full description of the rate and pattern of change could reveal the limits, if any, to which the eukaryotic genome can accommodate reorganizations. We have constructed a high-density physical map of the largest chromosomal element in Drosophila repleta (chromosome 2) and compared the order and distances between the markers with those on the homologous chromosomal element (3R) in Drosophila melanogaster. The two species belong to different subgenera (Drosophila and Sophophora, respectively), which diverged 40-62 million years (Myr) ago and represent, thus, the farthest lineages within the Drosophila genus. The comparison reveals extensive reshuffling of gene order from centromere to telomere. Using a maximum likelihood method, we estimate that 114 +/- 14 paracentric inversions have been fixed in this chromosomal element since the divergence of the two species, that is, 0.9-1.4 inversions fixed per Myr. Comparison with available rates of chromosomal evolution, taking into account genome size, indicates that the Drosophila genome shows the highest rate found so far in any eukaryote. Twenty-one small segments (23-599 kb) comprising at least two independent (nonoverlapping) markers appear to be conserved between D. melanogaster and D. repleta. These results are consistent with the random breakage model and do not provide significant evidence of functional constraint of any kind. They support the notion that the Drosophila genome is extraordinarily malleable and has a modular organization. The high rate of chromosomal change also suggests a very limited transferability of the positional information from the Drosophila genome to other insects.
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- 2001
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12. (705): Psychotropic medication use among adolescents with juvenile fibromyalgia
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Kashikar-Zuck, S., Ho, I., Lynch, A., Graham, T., Ranz, J., Malblanc, R., Mullen, S., Powers, S., Lovell, D., Passo, M., Bean, J., and Arnold, L.
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- 2006
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13. Wireless sensor networks for concrete and architectural heritage applications
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Aparicio, S., MARÍA INMACULADA MARTÍNEZ GARRIDO, Fuente, J. V., Ranz, J., Fort, R., Izquierdo, M. A. G., and Anaya, J. J.
14. Wireless sensor networks for concrete and architectural heritage applications
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Sofia Aparicio, Martínez-Garrido, M. I., Fuente, J. V., Ranz, J., Fort, R., Izquierdo, M. A. G., and Anaya, J. J.
15. Performance of a tree routing topology for wireless sensor networks using different platforms
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Aparicio, S., Ranz, J., Molero, M., Hernández, M. G., and Anaya, J. J.
16. Childhood immunization rates in rural Intibucá, Honduras: an analysis of a local database tool and community health center records for assessing and improving vaccine coverage
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He Yuan, Zarychta Alan, Ranz Joseph B, Carroll Mary, Singleton Lori M, Wilson Paria M, and Schlaudecker Elizabeth P
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Vaccines ,Childhood immunization ,Honduras ,Database ,Community health workers ,Public health ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Vaccines are highly effective at preventing infectious diseases in children, and prevention is especially important in resource-limited countries where treatment is difficult to access. In Honduras, the World Health Organization (WHO) reports very high immunization rates in children. To determine whether or not these estimates accurately depict the immunization coverage in non-urban regions of the country, we compared the WHO data to immunization rates obtained from a local database tool and community health center records in rural Intibucá, Honduras. Methods We used data from two sources to comprehensively evaluate immunization rates in the area: 1) census data from a local database and 2) immunization data collected at health centers. We compared these rates using logistic regression, and we compared them to publicly available WHO-reported estimates using confidence interval inclusion. Results We found that mean immunization rates for each vaccine were high (range 84.4 to 98.8 percent), but rates recorded at the health centers were significantly higher than those reported from the census data (p≤0.001). Combining the results from both databases, the mean rates of four out of five vaccines were less than WHO-reported rates (p p=0.03). The rates by individual vaccine were similar across townships (p >0.05), except for diphtheria/tetanus/pertussis vaccine (p=0.02) and oral polio vaccine (p Conclusions Immunization rates in Honduras were high across data sources, though most of the rates recorded in rural Honduras were less than WHO-reported rates. Despite geographical difficulties and barriers to access, the local database and Honduran community health workers have developed a thorough system for ensuring that children receive their immunizations on time. The successful integration of community health workers and a database within the Honduran decentralized health system may serve as a model for other immunization programs in resource-limited countries where health care is less accessible.
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- 2012
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17. Characterization and evolutionary dynamics of complex regions in eukaryotic genomes.
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Ranz J and Clifton B
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- Gene Duplication, Genomic Structural Variation, Genomics standards, Multigene Family, Sequence Analysis, DNA standards, Eukaryota genetics, Evolution, Molecular, Genome genetics
- Abstract
Complex regions in eukaryotic genomes are typically characterized by duplications of chromosomal stretches that often include one or more genes repeated in a tandem array or in relatively close proximity. Nevertheless, the repetitive nature of these regions, together with the often high sequence identity among repeats, have made complex regions particularly recalcitrant to proper molecular characterization, often being misassembled or completely absent in genome assemblies. This limitation has prevented accurate functional and evolutionary analyses of these regions. This is becoming increasingly relevant as evidence continues to support a central role for complex genomic regions in explaining human disease, developmental innovations, and ecological adaptations across phyla. With the advent of long-read sequencing technologies and suitable assemblers, the development of algorithms that can accommodate sample heterozygosity, and the adoption of a pangenomic-like view of these regions, accurate reconstructions of complex regions are now within reach. These reconstructions will finally allow for accurate functional and evolutionary studies of complex genomic regions, underlying the generation of genotype-phenotype maps of unprecedented resolution.
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- 2019
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18. Routing Topologies of Wireless Sensor Networks for Health Monitoring of a Cultural Heritage Site.
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Aparicio S, Martínez-Garrido MI, Ranz J, Fort R, and Izquierdo MÁ
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- Algorithms, Computer Communication Networks, Models, Theoretical, Environmental Monitoring methods, Wireless Technology
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This paper provides a performance evaluation of tree and mesh routing topologies of wireless sensor networks (WSNs) in a cultural heritage site. The historical site selected was San Juan Bautista church in Talamanca de Jarama (Madrid, Spain). We report the preliminary analysis required to study the effects of heating in this historical location using WSNs to monitor the temperature and humidity conditions during periods of weeks. To test which routing topology was better for this kind of application, the WSNs were first deployed on the upper floor of the CAEND institute in Arganda del Rey simulating the church deployment, but in the former scenario there was no direct line of sight between the WSN elements. Two parameters were selected to evaluate the performance of the routing topologies of WSNs: the percentage of received messages and the lifetime of the wireless sensor network. To analyze in more detail which topology gave the best performance, other communication parameters were also measured. The tree topology used was the collection tree protocol and the mesh topology was the XMESH provided by MEMSIC (Andover, MA, USA). For the scenarios presented in this paper, it can be concluded that the tree topology lost fewer messages than the mesh topology., Competing Interests: The authors declare no conflict of interest.
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- 2016
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19. Outpatient training in public/community psychiatry and systems-based practices.
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Le Melle S, Clemmey P, and Ranz J
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- Adult, Humans, Community Psychiatry education, Curriculum, Internship and Residency organization & administration, Outpatients
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- 2014
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20. Factors impacting the decision to participate in and satisfaction with public/community psychiatry fellowship training.
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Weinberg M, LeMelle S, and Ranz J
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- Female, Humans, Job Satisfaction, Male, United States, Career Choice, Community Psychiatry education, Fellowships and Scholarships organization & administration, Fellowships and Scholarships statistics & numerical data
- Abstract
During yearly meetings of the recently developed network of 15 public/community psychiatry fellowships, it has been noted that programs are having varying degrees of success with regard to recruitment. To understand factors that impact recruitment, a quality improvement survey of fellows and alumni was conducted. Respondents were asked to rate overall satisfaction with their fellowship training as well as perceived benefits and obstacles to participating in a fellowship program, and impact on their careers. A total of 155 (57%) fellows and alumni responded. Factor analysis was used to condense the variables, and a multiple regression explored factors predicting overall fellowship program satisfaction. Factors that represented perceived benefits had higher means than did factors that represent obstacles. Respondents highly valued the extent to which these fellowships enhanced their careers, with regard to job opportunities, academics, networking and leadership.
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- 2014
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21. Monitoring of freeze-thaw cycles in concrete using embedded sensors and ultrasonic imaging.
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Ranz J, Aparicio S, Romero H, Casati MJ, Molero M, and González M
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This paper deals with the study of damage produced during freeze-thaw (F-T) cycles using two non-destructive measurement approaches-the first approach devoted to continuous monitoring using embedded sensors during the cycles, and the second one, performing ultrasonic imaging before and after the cycles. Both methodologies have been tested in two different types of concrete specimens, with and without air-entraining agents. Using the first measurement approach, the size and distribution of pores were estimated using a thermoporometrical model and continuous measurements of temperature and ultrasonic velocity along cycles. These estimates have been compared with the results obtained using mercury porosimetry testing. In the second approach, the damage due to F-T cycles has been evaluated by automated ultrasonic transmission and pulse-echo inspections made before and after the cycles. With these inspections the variations in the dimensions, velocity and attenuation caused by the accelerated F-T cycles were determined.
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- 2014
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22. Psychiatry residents' perception of public/community psychiatry fellowship training.
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Weinberg M, LeMelle S, and Ranz J
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- Adult, Career Choice, Curriculum, Female, Humans, Male, United States, Attitude of Health Personnel, Community Psychiatry education, Fellowships and Scholarships, Internship and Residency
- Abstract
In order to improve recruitment into public/community psychiatry fellowships, a survey was administered to understand psychiatry residents' perception of benefits and obstacles to fellowship training. Using standard statistical methods, the responses of those residents who indicated interest in public/community psychiatry training were compared to those who were not. Residents who were interested in public/community psychiatry fellowships were earlier in their training. These same residents gave higher endorsements to items related to quality, location and flexibility of training program, recommendation of colleagues, opportunities for health policy training and networking as compared to residents who were not interested in pursuing a public/community. Those results attained statistical significance while philosophical approaches including emphasis on recovery and tailoring specific training experiences approached significance. Psychiatric residents appear to start residency training with some interest in public/community psychiatry and this interest can be nurtured if public/community psychiatry is emphasized during training.
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- 2014
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23. A day in the life of a public psychiatry fellow.
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Shoyinka SO, Barber ME, and Ranz J
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- Adult, Career Choice, Curriculum, Humans, Male, New York, Activities of Daily Living, Community Psychiatry education, Fellowships and Scholarships, Psychiatry education, Public Health education
- Abstract
Now in its 29th year, the Public Psychiatry Fellowship of the New York Psychiatric Institute at Columbia Medical Center selects 10 fellows per year for its 1-year program (1). This award-winning fellowship trains future leaders for the public mental health sector. The curriculum (2) employs a combination of a didactic seminar series, management-problem-focused presentations by guest speakers, field trips, and supervision by fellowship faculty to instill the values and skills required for practice and leadership in the public sector. Fellows utilize the framework of the academic curriculum to carry out a series of presentations throughout the year that allow them to organize, implement and evaluate concepts that they learn during the year. The following account, written from bird's eye view, details one fellow's day at his field placement in a State Hospital outpatient clinic setting, with the aim of illustrating how the concepts taught by the fellowship find application in day to day practice.
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- 2011
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24. Progress in workforce development since 2000: advanced training opportunities in public and community psychiatry.
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Sowers W, Pollack D, Everett A, Thompson KS, Ranz J, and Primm A
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- Fellowships and Scholarships, Humans, Leadership, Personnel Loyalty, Professional Role, United States, Workforce, Community Psychiatry education, Psychiatry education
- Abstract
A crisis in the behavioral health care workforce has drawn considerable attention from consumers, families, advocates, clinical professionals, and system administrators at local, state, and federal levels in the past decade. Its effects have been felt in the recruitment, retention, and performance of psychiatrists in the public sector, where a focus on biological aspects of illness and efforts to cut costs have made it difficult for public psychiatrists to engage meaningfully in leadership, consultation, prevention, and psychosocial interventions. An array of training opportunities has recently been created to meet the needs of community psychiatrists at various stages of their careers, from psychiatrists just beginning their careers to those who have been working as medical directors for several years. This article describes the development of these initiatives and their impact on public psychiatry in four key areas--training of experienced psychiatrists, ensuring retention of psychiatrists in community programs, providing fellowship training, and creating professional identity and pride. Although these programs constitute only initial steps, opportunities for psychiatrists to obtain advanced training in community psychiatry are much greater now than they were ten years ago. These initiatives will enhance the professional identity of community psychiatrists and provide a solid foundation for future development of public service psychiatry in the behavioral health workforce.
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- 2011
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25. An image segmentation based on a genetic algorithm for determining soil coverage by crop residues.
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Ribeiro A, Ranz J, Burgos-Artizzu XP, Pajares G, del Arco MJ, and Navarrete L
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- Algorithms, Color, Crops, Agricultural, Image Enhancement methods, Image Interpretation, Computer-Assisted methods, Light, Models, Statistical, Soil, Spain, Agriculture methods, Pattern Recognition, Automated methods
- Abstract
Determination of the soil coverage by crop residues after ploughing is a fundamental element of Conservation Agriculture. This paper presents the application of genetic algorithms employed during the fine tuning of the segmentation process of a digital image with the aim of automatically quantifying the residue coverage. In other words, the objective is to achieve a segmentation that would permit the discrimination of the texture of the residue so that the output of the segmentation process is a binary image in which residue zones are isolated from the rest. The RGB images used come from a sample of images in which sections of terrain were photographed with a conventional camera positioned in zenith orientation atop a tripod. The images were taken outdoors under uncontrolled lighting conditions. Up to 92% similarity was achieved between the images obtained by the segmentation process proposed in this paper and the templates made by an elaborate manual tracing process. In addition to the proposed segmentation procedure and the fine tuning procedure that was developed, a global quantification of the soil coverage by residues for the sampled area was achieved that differed by only 0.85% from the quantification obtained using template images. Moreover, the proposed method does not depend on the type of residue present in the image. The study was conducted at the experimental farm "El Encín" in Alcalá de Henares (Madrid, Spain).
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- 2011
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26. Biochemical markers of bone turnover associated with calcium supplementation in children with juvenile rheumatoid arthritis: results of a double-blind, placebo-controlled intervention trial.
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Carrasco R, Lovell DJ, Giannini EH, Henderson CJ, Huang B, Kramer S, Ranz J, Heubi J, and Glass D
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- Administration, Oral, Adolescent, Amino Acids blood, Amino Acids urine, Bone Density drug effects, Bone and Bones drug effects, Bone and Bones metabolism, Calcium blood, Calcium urine, Child, Creatinine blood, Creatinine urine, Double-Blind Method, Female, Follow-Up Studies, Humans, Male, Osteocalcin blood, Osteocalcin urine, Parathyroid Hormone blood, Patient Compliance, Phosphorus blood, Phosphorus urine, Placebos, Vitamin D administration & dosage, Vitamin D blood, Vitamin D urine, Vitamins administration & dosage, Vitamins blood, Vitamins urine, Arthritis, Juvenile blood, Arthritis, Juvenile drug therapy, Arthritis, Juvenile urine, Biomarkers blood, Biomarkers urine, Calcium administration & dosage, Drug Monitoring methods
- Abstract
Objective: To determine the effects of calcium supplementation on bone physiology in corticosteroid-free children with juvenile rheumatoid arthritis (JRA) by measuring serum and urinary bone-related hormones, minerals, and markers of bone formation and resorption., Methods: In this double-blind trial, patients were randomized to receive daily oral supplementation with 1,000 mg of calcium and 400 IU of vitamin D or with placebo and 400 IU of vitamin D for 24 months. The effect of calcium supplementation on bone physiology was determined periodically using markers of bone turnover., Results: One hundred ninety-eight patients met the inclusion criteria and were followed up in the study. At baseline, there were no differences in markers of bone turnover between the groups. Patients with < or = 4 joints with active disease had higher serum levels of calcium and parathyroid hormone (PTH). Calcium-treated patients with < or =4 joints with active disease had lower levels of osteocalcin (OC). At followup, levels of 1,25-dihydroxyvitamin D3, PTH, OC, and urine phosphorus were lower in the group receiving calcium supplementation. Hypercalciuria, as determined by the urinary calcium-to-creatinine ratio, was not noted in 24-hour urine studies., Conclusion: Levels of markers of bone physiology were significantly decreased in children with JRA receiving calcium supplementation. The physiologic changes were noted as early as 12 months into calcium supplementation. The hypercalciuria noted on spot testing of the urinary calcium-to-creatinine ratio was not demonstrated on further evaluation, nor did it lead to renal pathology. These findings suggest that the calcium supplementation met physiologic needs and caused an increased calcium loss in urine.
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- 2008
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27. A randomized controlled trial of calcium supplementation to increase bone mineral density in children with juvenile rheumatoid arthritis.
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Lovell DJ, Glass D, Ranz J, Kramer S, Huang B, Sierra RI, Henderson CJ, Passo M, Graham B, Bowyer S, Higgins G, Rennebohm R, Schikler KN, and Giannini E
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- Adolescent, Arthritis, Juvenile drug therapy, Body Composition drug effects, Bone Density drug effects, Bone Resorption etiology, Bone and Bones drug effects, Bone and Bones pathology, Calcium pharmacology, Child, Dietary Supplements, Double-Blind Method, Female, Humans, Male, Prospective Studies, Vitamin D pharmacology, Vitamin D therapeutic use, Arthritis, Juvenile complications, Arthritis, Juvenile physiopathology, Bone Density physiology, Bone Resorption drug therapy, Calcium therapeutic use
- Abstract
Objective: To examine the effects of daily supplementation with calcium (Ca) in combination with vitamin D on total body and lumbar spine bone mineral density (BMD) in patients with juvenile rheumatoid arthritis (JRA) who had not taken corticosteroids for at least 3 months prior to the beginning of the study., Methods: One hundred ninety-eight children and adolescents (141 girls and 57 boys) with JRA, ages 6 to 18 years, with a mean +/- SD age of 11.7 +/- 3.3 years and a mean +/- SD disease duration of 5.6 +/- 3.8 years at the beginning of the study, were enrolled in this randomized double-blind, placebo-controlled trial to receive either daily oral supplements of 1,000 mg of Ca and 400 IU of vitamin D (n = 103) or matched placebo tablets and 400 IU of vitamin D (n = 95) for 24 months. Total body BMD (TBBMD) was measured by dual x-ray absorptiometry at baseline and every 6 months for 24 months., Results: At baseline, the mean +/- SD TBBMD was 0.89 +/- 0.14 gm/cm2 among patients randomized to the Ca group and 0.87 +/- 0.14 gm/cm2 among those randomized to placebo (P = 0.445). At 24 months, the mean +/- SD TBBMD among those receiving Ca was 0.95 +/- 0.13 gm/cm2, compared with 0.92 +/- 0.14 gm/cm2 among those receiving placebo. A longitudinal random-effects mixed model analysis that controlled for differences in the subject's initial BMD, sex, Tanner stage, adherence to the study medication regimen, and body composition revealed significantly higher TBBMD among patients who received Ca compared with patients who received placebo during the study period (P = 0.03)., Conclusion: Ca supplementation resulted in a small, but statistically significant, increase in TBBMD compared with placebo in children with JRA.
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- 2006
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28. Demographic analysis of members of the American Association of Community Psychiatrists.
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Ranz J
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- Demography, Female, Health Care Surveys, Humans, Male, Middle Aged, Physician's Role, Salaries and Fringe Benefits, United States, Workforce, Career Mobility, Community Mental Health Services economics, Psychiatry economics
- Abstract
This study examines which issues public psychiatrists perceive as having most impacted their careers over the past five years and whether this impact was experienced differently by psychiatrists in varying regions of the country. The author sent a questionnaire to all members of the American Association of Community Psychiatrists in clinical practice for at least five years. Seventy-one percent (344 of 482) responded. As expected, respondents were generally negative about how economic factors have impacted their professional lives. This impact, however, was experienced very differently depending on which region of the country the psychiatrist was working.
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- 2004
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29. Public psychiatrists' perceptions of changes over the past five years.
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Ranz J
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- Administrative Personnel, Female, Health Care Surveys, Humans, Job Satisfaction, Male, Middle Aged, Physician's Role, Salaries and Fringe Benefits statistics & numerical data, Workforce, Career Mobility, Community Mental Health Services trends, Psychiatry trends
- Abstract
This study examines which issues public psychiatrists perceive as having most impacted their careers over the past five years and whether this impact was differentially experienced by staff psychiatrists and medical directors. The authors sent a questionnaire to all members of the American Association of Community Psychiatrists (AACP) in clinical practice for at least 5 years. Surprisingly, public psychiatrists report that the impact of recent changes have been primarily positive, except in the domain of economic developments. Both program and agency medical directors report experiencing about the same amount of change, though significantly more positive overall impact, compared to staff psychiatrists. This finding should encourage psychiatrists to become program medical directors, a feasible next step for many staff psychiatrists.
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- 2004
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30. The role of the psychiatrist: job satisfaction of medical directors and staff psychiatrists.
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Ranz J, Stueve A, and McQuistion HL
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- Adult, Age Factors, Career Mobility, Female, Humans, Male, Medical Staff statistics & numerical data, Middle Aged, Physician Executives statistics & numerical data, Surveys and Questionnaires, Task Performance and Analysis, United States, Workforce, Community Psychiatry statistics & numerical data, Job Satisfaction, Medical Staff psychology, Physician Executives psychology, Physician's Role
- Abstract
In a previous survey of Columbia University Public Psychiatry Fellowship alumni, medical directors reported experiencing higher job satisfaction compared to staff psychiatrists. To further this inquiry, the authors conducted an expanded survey among the membership of the American Association of Community Psychiatrists (AACP). We mailed a questionnaire to all AACP members. Respondents categorized their positions as staff psychiatrist, program medical director or agency medical director, and rated their overall job satisfaction. The form also included a number of demographic and job characteristic items. Of 479 questionnaires mailed, a total of 286 individuals returned questionnaires (61%-12 forms were undeliverable). As in our previous survey, medical directors experience significantly higher job satisfaction compared to staff psychiatrists. Program and agency medical directors do not differ significantly. In addition, job satisfaction is strongly and negatively correlated with age for staff psychiatrists but not for medical directors. This survey strengthens the previously reported advantage medical directors have over staff psychiatrists regarding job satisfaction. The finding that job satisfaction decreases with increasing age of staff psychiatrists but not medical directors is particularly interesting, suggesting that staff psychiatrist positions may come to be regarded as "dead-end" over time. Psychiatrists are advised to seek promotions to program medical director positions early in their careers, since these positions are far more available, and provide equal job satisfaction, compared to agency medical director positions.
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- 2001
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31. The role of the community psychiatrist as medical director: a delineation of job types.
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Ranz J, McQuistion HL, and Stueve A
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- Analysis of Variance, Data Collection, Female, Humans, Male, Middle Aged, Statistics, Nonparametric, Task Performance and Analysis, United States, Community Mental Health Services organization & administration, Physician Executives, Psychiatry
- Abstract
To examine the variety of roles filled by psychiatrists functioning as medical directors in community settings, a survey of all members of the American Association of Community Psychiatrists was undertaken. A total of 168 respondents classified themselves as agency medical directors or program medical directors. Medical directors also classified their breadth of supervisory responsibility as including medical staff only, medical and other clinical staff, or all staff (including administrative staff). A classification scheme of six types of medical director positions based on level of operation and breadth of supervisory responsibility was created. This classification helps clarify the medical director's role, providing guidance to psychiatrists and agencies negotiating job descriptions for this position.
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- 2000
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32. The role of the psychiatrist as medical director: a survey of psychiatric administrators.
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Ranz JM, Stueve A, and Rosenheck S
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- Adult, Analysis of Variance, Demography, Humans, Job Satisfaction, Leadership, Male, Middle Aged, Physician Executives psychology, Psychiatric Department, Hospital organization & administration, Psychiatry statistics & numerical data, Surveys and Questionnaires, Task Performance and Analysis, United States, Community Mental Health Centers organization & administration, Physician Executives statistics & numerical data, Psychiatry organization & administration
- Abstract
Previous surveys of public and community psychiatrists have demonstrated that medical directors perform a wider variety of tasks, and experience increased job satisfaction, compared to staff psychiatrists. Notwithstanding respondents' belief that clinical collaboration tasks contribute most to job satisfaction, the performance of administrative tasks is most highly correlated with overall job satisfaction. The current survey was undertaken to determine whether these findings could be replicated among hospital-based psychiatrists. Demographic and job characteristic profiles of hospital-based psychiatrists were clearly distinguished from those of community psychiatrists. Despite these differences, task profiles and job satisfaction parameters of hospital-based psychiatrists were comparable to those previously reported for community psychiatrists.
- Published
- 2000
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33. Generation of a widespread Drosophila inversion by a transposable element.
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Cáceres M, Ranz JM, Barbadilla A, Long M, and Ruiz A
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- Animals, Cloning, Molecular, DNA, Complementary, Gene Expression, Genes, Insect, In Situ Hybridization, Models, Genetic, Open Reading Frames, Polymerase Chain Reaction, Recombination, Genetic, Sequence Alignment, Chromosome Inversion, DNA Transposable Elements, Drosophila genetics
- Abstract
Although polymorphic inversions in Drosophila are very common, the origin of these chromosomal rearrangements is unclear. The breakpoints of the cosmopolitan inversion 2j of D. buzzatii were cloned and sequenced. Both breakpoints contain large insertions corresponding to a transposable element. It appears that the two pairs of target site duplications generated upon insertion were exchanged during the inversion event, and that the inversion arose by ectopic recombination between two copies of the transposon that were in opposite orientations. This is apparently the mechanism by which transposable elements generate natural inversions in Drosophila.
- Published
- 1999
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34. Comparative mapping of cosmids and gene clones from a 1.6 Mb chromosomal region of Drosophila melanogaster in three species of the distantly related subgenus Drosophila.
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Ranz JM, Cáceres M, and Ruiz A
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- Animals, Biological Evolution, Chromosome Inversion, Chromosome Mapping, Chromosomes genetics, Chromosomes ultrastructure, Cloning, Molecular, In Situ Hybridization, Phylogeny, Species Specificity, Time Factors, Cosmids genetics, Drosophila genetics, Drosophila melanogaster genetics, Genes, Insect
- Abstract
The successful hybridization of cosmid clones from Drosophila melanogaster (Sophophora subgenus) to the salivary gland chromosomes of other species as distantly related as those in the Drosophila subgenus attests their great potential for unravelling genome evolution. We have carried out, using 28 cosmids and 13 gene clones, a study of the organization of the D. melanogaster 95A-96A chromosomal region in three Drosophila subgenus species: D. repleta, D. buzzattii and D. virilis. These clones were first used to built an accurate map of this 1.6 Mb region of D. melanogaster chromosome 3R (Muller's element E). Then, they were hybridized and mapped to the homologous chromosome 2 of the other three distantly related species. The studied region is disseminated over 13 different sites of chromosome 2 in the Drosophila subgenus species, which implies a minimum of 12 inversion breakpoints fixed between the two subgenera. Extrapolation to the entire chromosome gives 90 fixed inversions. The D. melanogaster Pp1-96A-Acr96Aa segment conserved in D. repleta and D. buzzatii is longer than previously thought and is also conserved in D. virilis. In addition, three other D. melanogaster segments conserved in the three Drosophila subgenus species were found. Finally, our data indicate significant statistical differences in the evolution rate of Muller's element E among lineages, a result that agrees well with the previous cytogenetic data.
- Published
- 1999
- Full Text
- View/download PDF
35. The role of the psychiatrist as program medical director.
- Author
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Ranz J and Stueve A
- Subjects
- Humans, Job Description, Linear Models, Medical Staff statistics & numerical data, Physician Executives statistics & numerical data, Physician's Role, Public Sector, Schools, Medical statistics & numerical data, United States, Work classification, Work psychology, Workforce, Attitude of Health Personnel, Community Mental Health Centers organization & administration, Job Satisfaction, Medical Staff psychology, Physician Executives psychology, Psychiatry statistics & numerical data
- Abstract
Objective: In a recently published survey of alumni of the Columbia University public psychiatry fellowship, respondents who were medical directors reported performing a greater variety of tasks and experiencing higher job satisfaction than those who were staff psychiatrists. Both medical directors and staff psychiatrists believed that job satisfaction was most dependent on clinical collaboration activities. Survey data were reanalyzed to determine whether there was a relationship between the frequency of tasks performed and overall job satisfaction, and whether the tasks that actually predicted overall job satisfaction were the same as those that respondents believed contributed to job satisfaction., Methods: The survey was distributed to all public psychiatry fellows and alumni in active practice (N=89), and 72 forms (81 percent) were returned. The survey consisted of 16 self-administered items divided into three categories of job tasks: direct service, clinical collaboration, and administration., Results and Conclusions: Despite respondents' beliefs that clinical collaboration activities contributed most to job satisfaction, performance of administrative tasks was found to best correlate with overall job satisfaction. Furthermore, overall job satisfaction was related to the performance of administrative tasks and not to the job title of medical director alone. Most of the medical directors in the survey had program-level, rather than agency-level, responsibilities. The findings indicate that the role of program medical director can serve as a crucial next step for staff psychiatrists, offering the opportunity to perform administrative tasks, which, according to the results, improves job satisfaction in public-sector positions.
- Published
- 1998
- Full Text
- View/download PDF
36. The effect of calcium supplementation on bone density during lactation and after weaning.
- Author
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Kalkwarf HJ, Specker BL, Bianchi DC, Ranz J, and Ho M
- Subjects
- Adult, Bone Regeneration drug effects, Bone Resorption prevention & control, Calcium Carbonate pharmacology, Calcium, Dietary administration & dosage, Double-Blind Method, Female, Humans, Lumbar Vertebrae drug effects, Radius drug effects, Bone Density drug effects, Calcium Carbonate therapeutic use, Lactation physiology, Postpartum Period physiology, Weaning
- Abstract
Background: Women may lose bone during lactation because of calcium lost in breast milk. We studied whether calcium supplementation prevents bone loss during lactation or augments bone gain after weaning., Methods: We conducted two randomized, placebo-controlled trials of calcium supplementation (1 g per day) in postpartum women. In one trial (the study of lactation), 97 lactating and 99 nonlactating women were enrolled a mean (+/-SD) of 16+/-2 days post partum. In the second trial (the study of weaning), 95 lactating women who weaned their infants in the 2 months after enrollment and 92 nonlactating women were enrolled 5.6+/-0.8 months post partum. The bone density of the total body, lumbar spine, and forearm was measured at enrollment and after three and six months., Results: The bone density of the lumbar spine decreased by 4.2 percent in the lactating women receiving calcium and by 4.9 percent in those receiving placebo and increased by 2.2 and 0.4 percent, respectively, in the nonlactating women (P<0.001 for the effect of lactation; P= 0.01 for the effect of calcium). After weaning, the bone density of the lumbar spine increased by 5.9 percent in the lactating women receiving calcium and by 4.4 percent in those receiving placebo; it increased by 2.5 and 1.6 percent, respectively, in the nonlactating women (P<0.001 for the effects of lactation and calcium). There was no effect of either lactation or calcium supplementation on bone density in the forearm, and there was no effect of calcium supplementation on the calcium concentration in breast milk., Conclusions: Calcium supplementation does not prevent bone loss during lactation and only slightly enhances the gain in bone density after weaning.
- Published
- 1997
- Full Text
- View/download PDF
37. The psychiatrist's role as medical director: task distributions and job satisfaction.
- Author
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Ranz J, Eilenberg J, and Rosenheck S
- Subjects
- Adult, Career Choice, Health Care Surveys, Humans, Medical Staff classification, Medical Staff psychology, Medical Staff statistics & numerical data, Personnel Management, Physician Executives classification, Physician Executives statistics & numerical data, Psychiatry statistics & numerical data, Public Sector statistics & numerical data, Attitude of Health Personnel, Community Mental Health Services organization & administration, Job Description, Job Satisfaction, Physician Executives psychology, Psychiatry organization & administration, Public Sector organization & administration
- Abstract
Objectives: Previous surveys of the alumni of Columbia University's fellowship in public psychiatry suggest that a large number of alumni fill positions as program medical directors. In contrast with agency medical directors, program medical directors work within team structures and maintain a high degree of clinical involvement. The fellowship faculty surveyed the alumni to catalog the tasks performed by program medical directors, agency medical directors, and staff psychiatrists and to determine the extent to which these tasks contribute to job satisfaction., Methods: A survey form was developed using a list of tasks derived from the American Psychiatric Association's guidelines for psychiatrists working in organized mental health care delivery systems and from a recent article that surveyed job descriptions of psychiatrists in community mental health centers. The survey form was distributed to all current fellows and alumni in active practice (N = 89)., Results and Conclusions: Seventy-two forms were returned, for a response rate of 81 percent. Respondents who were medical directors performed a greater variety of tasks and reported higher job satisfaction than those who were staff psychiatrists. Higher job satisfaction was related to a greater variety of tasks performed, especially tasks involving clinical collaboration. Most of the respondents were program medical directors rather than agency medical directors. The position of program medical director constitutes a relatively small and attainable step above that of staff psychiatrist. Agencies would do well to consider creating positions of program medical directors for their staff psychiatrists whenever feasible, and psychiatrists committed to public-sector careers should negotiate to have such positions.
- Published
- 1997
- Full Text
- View/download PDF
38. Chromosomal homology and molecular organization of Muller's elements D and E in the Drosophila repleta species group.
- Author
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Ranz JM, Segarra C, and Ruiz A
- Subjects
- Animals, Chromosome Inversion, Chromosome Mapping, Hybridization, Genetic, Polymorphism, Genetic, Chromosomes, Drosophila genetics, Genes, Insect
- Abstract
Thirty-three DNA clones containing protein-coding genes have been used for in situ hybridization to the polytene chromosomes of two Drosophila repleta group species, D. repleta and D. buzzatii. Twenty-six clones gave positive results allowing the precise localization of 26 genes and the tentative identification of another nine. The results were fully consistent with the currently accepted chromosomal homologies and in no case was evidence for reciprocal translocations or pericentric inversions found. Most of the genes mapped to chromosomes 2 and 4 that are homologous, respectively, to chromosome arms 3R and 3L of D. melanogaster (Muller's elements E and D). The comparison of the molecular organization of-these two elements between D. melanogaster and D. repleta (two species that belong to different subgenera and diverged some 62 million years ago) showed an extensive reorganization via paracentric inversions. Using a maximum likelihood procedure, we estimated that 130 paracentric inversions have become fixed in element E after the divergence of the two lineages. Therefore, the evolution rate for element E is approximately one inversion per million years. This value is comparable to previous estimates of the rate of evolution of chromosome X and yields an estimate of 4.5 inversions per million years for the whole Drosophila genome.
- Published
- 1997
- Full Text
- View/download PDF
39. Columbia University's fellowship in public psychiatry.
- Author
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Ranz J, Rosenheck S, and Deakins S
- Subjects
- Career Choice, Curriculum, Humans, New York, Specialization, Community Psychiatry education, Fellowships and Scholarships, Public Health education
- Abstract
In 1981 the fellowship in public psychiatry was established at New York State Psychiatric Institute and Columbia University College of Physicians and Surgeons to provide subspecialty training for psychiatrists who plan careers in the public sector. Ten one-year postresidency fellowships are awarded annually. The fellowship consists of supervised work and didactic experiences focused on the clinical modalities most effective in public mental health services and the managerial skills that the psychiatrist must possess to make those services work well. Fellows work three days a week at collaborating public-sector agencies throughout the New York metropolitan area. The curriculum includes an academic seminar, which gives fellows an introductory overview of major topics in public psychiatry; an organizational practicum, which is an exercise in management principles and practices; an evaluation practicum, which addresses the theory and practice of program evaluation; and an applied seminar, organized as a cycle of clinical, administrative, fiscal, and evaluation presentations in which each fellow applies the concepts learned in the other seminars to his or her field placement work. Of the 75 fellows who have graduated from the program, only six have chosen to leave the public arena. Nearly all work full time in the public sector, where more than half hold management positions. More than three-fourths hold academic appointments at medical schools in the area in which they are working as public psychiatrists.
- Published
- 1996
- Full Text
- View/download PDF
40. Creating a supportive environment using staff psychoeducation in a supervised residence.
- Author
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Ranz JM, Horen BT, McFarlane WR, and Zito JM
- Subjects
- Adult, Behavior Therapy, Drug Monitoring, Family psychology, Female, Goals, Halfway Houses organization & administration, Humans, Male, Models, Psychological, New York, Pilot Projects, Psychiatric Aides psychology, Therapeutic Community, Workforce, Halfway Houses standards, Health Facility Environment standards, Psychiatric Aides education, Schizophrenia rehabilitation, Social Support
- Abstract
The prevailing approach to rehabilitation in residential care emphasizes goal attainment. This approach often produces considerable stress for residents, most of whom have schizophrenia. Based on the view that low-demand environments, incorporating graduated expectations, may be more appropriate for this patient population, a three-component model for creating and maintaining a calm, supportive environment in a supervised residence was developed. The model utilizes staff psychoeducation, which is based on the principles of family psychoeducation, a highly effective intervention for patients with schizophrenia. The three components of the model are training in supportive interaction, a medication-monitoring program, and a behavioral approach to problem solving. Resident groups promote each of these components. The groups' goals are encouragement of positive, low-key interactions, compliance with medications, and slow, steady rehabilitation.
- Published
- 1991
- Full Text
- View/download PDF
41. Home 11: preparing chronic mental patients for on-campus living.
- Author
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Ranz JM
- Subjects
- Adult, Chronic Disease, Follow-Up Studies, Humans, Mental Disorders psychology, Middle Aged, Mood Disorders rehabilitation, New York, Rehabilitation, Vocational, Schizophrenia rehabilitation, Sheltered Workshops organization & administration, Social Adjustment, Token Economy, Halfway Houses organization & administration, Mental Disorders rehabilitation, Social Environment
- Published
- 1989
- Full Text
- View/download PDF
42. Consistency of "nonfocal" neurological signs.
- Author
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Shapiro T, Burkes L, Petti TA, and Ranz J
- Subjects
- Analysis of Variance, Child, Developmental Disabilities diagnosis, Humans, Nervous System Diseases diagnosis, Mental Disorders diagnosis, Neurologic Examination
- Published
- 1978
- Full Text
- View/download PDF
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