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PubMed2000

Interactive use of sign language by cross-fostered chimpanzees (Pan troglodytes).

Cross-fostered as infants in Reno, Nevada, chimpanzees (Pan troglodytes) Washoe, Moja, Tatu, and Dar freely converse in signs of American Sign Language with each other as well as with humans in Ellensburg, Washington. In this experiment, a human interlocutor waited for a chimpanzee to initiate conversations with her and then responded with 1 of 4 types of probes: general requests for more information, on-topic questions, off-topic questions, or negative statements. The responses of the chimpanzees to the probes depended on the type of probe and the particular signs in the probes. They reiterated, adjusted, and shifted the signs in their utterances in conversationally appropriate rejoinders. Their reactions to and interactions with a conversational partner resembled patterns of conversation found in similar studies of human children.

Animal Communication↗
PubMed1991

Electronic data interchange: a strategic approach.

The potential of EDI is virtually unlimited, but the success of any EDI initiative hinges on its ability to directly support strategies that achieve your institution's business objectives. At its most fundamental level, EDI technology automates current business practices, speeding up the exchange of business information. This application of EDI most often is found in a hospital's material management department. But EDI integrated internally within a hospital and externally with suppliers and vendors has the potential to go beyond simple automation and to transform processes. This is where the full value of EDI can be realized. No matter which level of EDI participation hospital management decides is appropriate to fulfill its business objectives and strategies, EDI will affect the entire institution's exchange of information with its internal and external audiences. The question management must answer is: Will the hospital's EDI strategy be offensive and managed, or defensive and reactive? Today's environment leaves no room for a "no-strategy" EDI option. The options are either to proactively shape EDI, or reactively play catch-up. EDI can work for you. Adequately developing an EDI game plan in support of your business objectives and calling on your suppliers and other trading partners to work with you will ensure EDI is an asset to your facility.

Computer Communication Networks↗
PubMedDate not supplied

EDI implementation needs cooperation.

Electronic Data Interchange is defined as all-vendor and equal access computer-transmitted business exchanges between hospitals and their trading partners. This column examines the current EDI implementation situation, which needs leadership not to stall out.

Computer Communication Networks↗
PubMed1982

[Social and clinical factors in the frequency of ambulatory patients visiting a therapeutic club of a psychiatric clinic].

Extramural psychiatric facilities such as therapeutic clubs are of major importance for the continuous aftercare of patients with qualitative or quantitative communicative difficulties. This contribution reports on social and clinical factors affecting the frequency with which outpatients of a psychiatric clinic attend such a club. The main objective of the club was to secure most frequent attendance among patients living without partners and who are not or only partly able to practice a vocation (regardless of the nosological and syndromatological diagnosis). This target was achieved. Attendance was less satisfactory among patients who had suffered from serious psychic disorders entailing frequent hospitalization and patients who, during their last stay at hospital, had received only somatic but no sociotherapeutic and psychotherapeutic treatment.

Adult↗
PubMed2001

Heteromeric mixing of connexins: compatibility of partners and functional consequences.

Cx43 is widely expressed in many different cell types, and many of these cells also express other connexins. If these connexins are capable of mixing, the functional properties of channels containing heteromeric connexons may substantially influence intercellular communication between such cells. We used biochemical strategies (sedimentation through sucrose gradients, co-immunoprecipitation, or co-purification by Ni-NTA chromatography) to examine heteromeric mixing of Cx43 with other connexins (including Cx26, Cx37, Cx40, Cx45, and Cx56) in transfected cells. These analyses showed that all of the tested connexins except Cx26 formed heteromeric connexons with Cx43. We used the double whole-cell patch-camp technique to analyze the electrophysiological properties of gap junction channels in pairs of co-expressing cells. Cx37 and Cx45 made a large variety of functional heteromeric combinations with Cx43 based on detection of many different single channel conductances. Most of the channel event sizes observed in cells co-expressing Cx40 and Cx43 were similar to those of homomeric Cx43 or Cx40 hemichannels in homo- or hetero-typic configurations. Our data suggest several different possible consequences of connexin co-expression: (1) some combinations of connexins may form heteromeric connexons with novel proeprties; (2) some connexins may form heteromeric channels that do not have unique properties, and (3) some connexins may be incompatible for heteromeric mixing.

Animals↗
PubMed2002

The impact of laws on HIV and STD prevention.

HIV and sexually transmitted diseases (STDs) are major public health problems in the United States. Since the start of the epidemic, nearly 800,000 persons have been reported with AIDS, and approximately 900,000 Americans are currently living with HIV infection. Each year, 15 million people in the United States become infected with one or more STDs. The direct and indirect costs of the major STDs--not including HIV infection--and their complications are estimated to total at least $10 billion annually. This article underscores the importance of law and other structural factors in the prevention and treatment of HIV and STDs. It describes state-level laws on STD screening, name-based reporting of STDs, name-based reporting of HIV and HIV partner notification implementation, and the impact of laws on STD and HIV risk behaviors and prevention services. More broadly, the article focuses on how the law influences the vulnerability or resilience of persons facing the risk of STDs, HIV infection, or AIDS.

Chlamydia Infections↗
PubMed2001

Intimate relationship characteristics associated with condom use among drug users and their sex partners: a multilevel analysis.

Few studies have examined sexual risk behaviors among drug users in the context of their primary sexual relationships. The aim of this study is to examine characteristics of sexual partners associated with inconsistent condom use among a sample of 703 cocaine and opiate users from Baltimore, MD who participated in a network oriented intervention study of human immunodeficiency syndrome (HIV) risk behaviors among drug users. The current study examines relationship characteristics between drug users and their sexual partners (n=1003). Some of the study participants had more than one sexual partner, accounting for the greater number of sexual pairs than study participants. Study participants reported using multiple drugs (56% injected, 48% sniffed heroin, and 48% smoked crack) and that 70% of their sexual partners also used heroin and/or cocaine. Forty percent reported consistent condom use in the past 3 months. In multiple logistic regression, characteristics associated with consistent condom use were, the drug user being HIV infected; not living with their sexual partners; and not being financially interdependent. Previous research has demonstrated lower rates of condom use with main compared with casual and exchange partners. Primary sexual partners provide a sense of stability and introducing condoms may not be desirable or realistic. HIV prevention programs that target drug users should focus on the benefits, such as trust and a sense of security, and risks of not using condoms in primary relationships. Programs should also focus on enhancing communication and negotiation skills through targeting individuals as well as couples.

Adolescent↗
PubMed2004

[Health in today's media society. Institutional health education and television entertainment].

The article sketches concepts of entertaining health education programmes on television as discussed in the new sub-discipline of health communication in Germany and describes some examples and aspects of cooperation between the Federal Center for Health Education (BZgA/FCHE) Cologne as an institutional health education agency and German television partners. Specific chances and problems of entertaining forms of mass media health education on television are discussed. Finally, perspectives for institutional health education in relation to television are discussed.

Forecasting↗
PubMed2003

Component-based mediation services for the integration of medical applications.

Allowing exchange of information and cooperation among network-wide distributed and heterogeneous applications is a major need of current health-care information systems. The European project SynEx aims at developing an integration platform for both new and legacy applications on each partner's site. We developed, in this project, mediation services based on the generic and reusable software components that facilitate the construction of an integration platform and ease the communication and the meaningful transformation among distributed and heterogeneous applications. The main component of the mediation services is named Pilot, which serves as an intelligent broker. It uses a multi-agents service model allowing the integration platform to be multi-servers. It transforms a client request into a valid high level service on the platform. Each service is broken up into several elementary steps by the Pilot. For each step, the Pilot uses an agent to realize the operation configured by the step. At runtime, the Pilot synchronizes the execution of different steps. To ease the communication and the interaction with the heterogeneous systems, an agent can integrate a Mediator. The Mediators are the communication and interpretation tools within the mediation services. We have developed a generic model that can be specialized for creating specific mediators for the different use cases. The mediator model uses two interfaces to connect the mediator with two systems that need to communicate. Each interface deals with the three aspects through three managers (the Communication Manager, the Syntax Manager and the Semantic Manager). Some ready-to-use specializations are developed for some well defined cases which can reduce the development effort. Once a manager is specialized, it can be used in different combinations with other managers to resolve different problems. The meaningful transformation is ensured on a semantic level in each mediator through the Semantic Model component. This last component allows the mapping among different vocabularies used by different systems through a shared ontology which allows the mapping process to focus on the meaning of the transformed information. We have used XML in different components of the mediation services as the interchange format and the description format. This has enhanced the flexibility of the components. The component based approach allows the generic components to be reused in different contexts and also allows the mediations services to be open to integrate other available technologies thus largely reduce the development efforts.

Artificial Intelligence↗
PubMed1996

Zik1, a transcriptional repressor that interacts with the heterogeneous nuclear ribonucleoprotein particle K protein.

The heterogeneous nuclear ribonucleoprotein particle (hnRNP) K protein is comprised of multiple modular domains that serve to engage a diverse group of molecular partners including DNA, RNA, the product of the proto-oncogene vav, and tyrosine and serine/threonine kinases. To identify additional K protein molecular partners and to further understand its function, we used a fragment of K protein as a bait in the yeast two-hybrid screen. The deduced primary structure of one of the positive clones revealed a novel zinc finger protein, hereby denoted as Zik1. In addition to the nine contiguous zinc fingers in the C terminus, Zik1 contains a KRAB-A domain thought to be involved in transcriptional repression. Zik1 and K protein bound in vitro and co-immunoprecipitated from cell extracts indicating that in vivo their interaction is direct. Expression of Gal4 DNA-binding domain-Zik1 fusion protein repressed a gene promoter bearing Gal4-binding elements, indicating that from cognate DNA elements Zik1 is a transcriptional repressor. The known diverse nature of K protein molecular interactions and now the identification of a K protein partner that is a transcriptional repressor lends support to the notion that K protein is a remarkably versatile molecule that may be acting as a docking platform to facilitate communication among molecules involved in signal transduction and gene expression.

Amino Acid Sequence↗
PubMed2005

A randomized social network HIV prevention trial with young men who have sex with men in Russia and Bulgaria.

OBJECTIVE: To evaluate the effects of an HIV prevention intervention with social networks of young men who have sex with men (YMSM) in St. Petersburg, Russia and Sofia, Bulgaria. DESIGN: A two-arm randomized trial with a longitudinally-followed community cohort. METHODS: Fifty-two MSM social networks were recruited through access points in high-risk community venues. Network members (n = 276) were assessed to determine risk characteristics, administered sociometric measures to empirically identify the social leader of each network, and counseled in risk reduction. The leaders of 25 experimental condition networks attended a nine-session program that provided training and guidance in delivering ongoing theory-based HIV prevention advice to other network members. Leaders successively targeted network members' AIDS risk-related knowledge and risk reduction norms, attitudes, intentions, and self-efficacy. Participants were re-administered risk assessment measures at 3- and 12-month follow-ups. RESULTS: Among changes produced, the percentage of experimental network members reporting unprotected intercourse (UI) declined from 71.8 to 48.4% at 3-month follow up (P = 0.0001). The percentage who engaged in UI with multiple partners reduced from 31.5 to 12.9% (P = 0.02). After 12 months, the effects became attenuated but remained among participants who had multiple recent sexual partners, the most vulnerable group. Little change was found in control group networks. CONCLUSIONS: Interventions that engage the identified influence leaders of at-risk YMSM social networks to communicate theory-based counseling and advice can produce significant sexual risk behavior change. This model is culturally pertinent for HIV prevention efforts in former socialist countries, as well as elsewhere for other hard-to-reach vulnerable community populations.

Adult↗
PubMed2026

Management of neonates born to mothers with reactive serologic tests for syphilis.

PURPOSE OF REVIEW: The dramatic resurgence of maternal and congenital syphilis in the United States highlights the need for their optimal management as syphilis in pregnancy can result in substantial neonatal morbidity and mortality. This review summarizes current epidemiology and discusses guidance on the management of neonates born to mothers with reactive serologic tests for syphilis. RECENT FINDINGS: Timely communication with local health department professionals is essential for optimal management of mothers with reactive serologic tests for syphilis and their neonates. Knowledge of maternal syphilis treatment history by partnering with local jurisdictions can circumvent much of the incertitude surrounding neonatal management. All neonates born to mothers with reactive serologic tests for syphilis should be tested using a nontreponemal ('lipoidal antigen') test. However, a reactive test may only indicate maternal nontreponemal IgG antibodies that are transferred transplacentally to the fetus. Therefore, neonatal management depends on maternal history and treatment for syphilis as well as clinical, laboratory, and radiographic findings in the neonatal evaluation. Existing management algorithms are complex, highlighting the need for a more practical, yet safe, approach. SUMMARY: A neonatal management guideline is proposed that may simplify the management of neonates born to mothers with reactive serologic tests for syphilis while advocating for expanded use of single-dose benzathine penicillin G therapy.

Humans↗
PubMed2003

Phenotype microarray analysis of Escherichia coli K-12 mutants with deletions of all two-component systems.

Two-component systems are the most common mechanism of transmembrane signal transduction in bacteria. A typical system consists of a histidine kinase and a partner response regulator. The histidine kinase senses an environmental signal, which it transmits to its partner response regulator via a series of autophosphorylation, phosphotransfer, and dephosphorylation reactions. Much work has been done on particular systems, including several systems with regulatory roles in cellular physiology, communication, development, and, in the case of bacterial pathogens, the expression of genes important for virulence. We used two methods to investigate two-component regulatory systems in Escherichia coli K-12. First, we systematically constructed mutants with deletions of all two-component systems by using a now-standard technique of gene disruption (K. A. Datsenko and B. L. Wanner, Proc. Natl. Acad. Sci. USA 97:6640-6645, 2000). We then analyzed these deletion mutants with a new technology called Phenotype MicroArrays, which permits assays of nearly 2,000 growth phenotypes simultaneously. In this study we tested 100 mutants, including mutants with individual deletions of all two-component systems and several related genes, including creBC-regulated genes (cbrA and cbrBC), phoBR-regulated genes (phoA, phoH, phnCDEFGHIJKLMNOP, psiE, and ugpBAECQ), csgD, luxS, and rpoS. The results of this battery of nearly 200,000 tests provided a wealth of new information concerning many of these systems. Of 37 different two-component mutants, 22 showed altered phenotypes. Many phenotypes were expected, and several new phenotypes were also revealed. The results are discussed in terms of the biological roles and other information concerning these systems, including DNA microarray data for a large number of the same mutants. Other mutational effects are also discussed.

Escherichia coli↗
PubMed1997

Spouse-aided therapy with depressed patients.

Twenty-three non-maritally distressed depressed patients who were married or cohabitating were randomly assigned to either individual behavioral-cognitive therapy or spouse-aided treatment. Both treatment conditions focused on depressed mood, behavioral activity, and dysfunctional cognitions, the difference being that in the spouse-aided treatment the partner was involved in all aspects of treatment, whereas in the individual condition the partner was not involved. MANOVAs revealed that treatment led to statistically significant improvement on depressed mood, behavioral activity, and dysfunctional cognitions. Treatment did not affect relationship variables (marital satisfaction, communication, and expressed emotion) for both spouses. Spouse-aided therapy was as effective as individual cognitive-behavior therapy.

Adolescent↗
PubMed2005

Assessing HIV prevention provider knowledge of behavior science theory: building on existing intuitive experience.

Behavioral science theory is recommended as a basis for prevention programs, yet many STD/HIV prevention providers have little academic background in this area and see no relevance of theory to their work. This study assessed STD/HIV prevention providers' intuitive insight about behaviors. Comparisons of behavioral determinants from providers "common sense" theories with determinants identified in formal theories are made through the use of Theoretical Domains, a teaching tool designed to enhance the understanding and use of behavioral science in planning and implementing interventions. Understanding how to effectively apply behavior change concepts, combined with prevention providers' basic, intuitive knowledge can enhance understanding, communication, and skills exchange between providers and researchers. Building capacity in local communities begins with a participatory process of community members, prevention providers, and researchers working together as equal partners. Better translation of research into practice using theory-based interventions will benefit the field of STD/HIV prevention.

Behavioral Sciences↗
PubMed2001

Interaction between the hypothalamo-pituitary-adrenal axis and the immunological system.

The endocrine and immune systems are interrelated via a bidirectional network in which hormones affect immune function and, in turn, immune responses are reflected in neuroendocrine changes. This bidirectional communication is possible because both systems share a common "chemical language" that results from a sharing of common ligands (hormones and cytokines) and their specific receptors. Cytokines are important partners in this crosstalk. They play a role in modulating the hypothalamo-pituitary-adrenal (HPA) axis responses at all three levels: the hypothalamus, the pituitary gland and the adrenals. Acute effects of cytokines are produced at the central nervous system level, particularly the hypothalamus, whereas pituitary and adrenal actions are slower and are probably involved during prolonged exposure to cytokines such as during chronic inflammation or infection. Several mechanisms have been proposed by which peripheral cytokines may gain access to the brain. They include an active transport through the blood-brain barrier, a passage at the circumventricular organ level, as well as a neuronal pathway through the vagal nerve. The immune-neuroendocrine interactions are involved in numerous physiological and pathophysiological conditions and the interactions with the HPA axis may represent a mechanism through which the immune system, by stimulating the production of glucocorticoids, avoids an overshoot of inflammatory response. The crosstalk between the immune and endocrine systems is important to homeostasis, since the interactions can produce various appropriate adaptative responses when homeostasis is threatened.

Adrenal Glands↗
PubMedDate not supplied

Smoking cessation: a consensus statement with special reference to primary care.

Nicotine addiction is a serious medical condition that needs to be treated like any other chronic disease. Primary care must play a key role in smoking cessation and offering help should be a routine part of primary care practice. As the most frequent opportunity for intervention lies within primary care, GPs should ensure that they raise the issue of stopping smoking at least annually with their smoking patients. When the smoker is ready to stop, the initial personal involvement of the GP is likely to increase the chance of a successful quit attempt. Follow-up may be with another healthcare professional. The support of healthcare professionals for the smoker who is motivated to quit, combined with appropriate pharmacotherapy, can substantially increase the chances of a successful quit attempt. Secondary care staff should also make every effort to help people to stop smoking and should communicate effectively with primary care--opportunities during hospitalisation are frequently missed. Specialist smoking cessation clinics have an essential role in providing more intensive specialist treatment and the expertise to partner and support the primary care effort. Smoking cessation is one of the most cost-effective healthcare interventions that can be made.

Family Practice↗
PubMed1995

General practice update: chlamydia infection in women.

The prevalence of cervical Chlamydia trachomatis infection in general practice populations ranges between 2% and 12%. Untreated infection can cause pelvic inflammatory disease, tubal infertility and ectopic pregnancy. These risks are increased by cervical invasive procedures, especially termination of pregnancy. However, most women with chlamydia infection have no symptoms. General practitioners and practice nurses carrying out pelvic examinations should have facilities for taking endocervical specimens for chlamydia. Routine chlamydia screening, should be considered if the local prevalence of infection is over 6%. Otherwise chlamydia testing should be offered to women requesting termination of pregnancy and to those who have risk factors: aged less than 25 years, absence of barrier contraception, recent change of sexual partner, vaginal discharge, friable cervix or sterile pyuria. Women found to have chlamydia infection need appropriate antibiotics, advice about contact tracing and referral to a genitourinary medicine clinic. Good communication between general practitioners and genitourinary physicians is essential. Both general practitioners and practice nurses have an important role to play in reducing the prevalence of cervical chlamydia infection and its potentially devastating consequences.

Bacteriological Techniques↗