An analysis of discontinued journals by Scopus

Researchers continually strive to communicate their findings to peers, hoping to receive recognition for their contribution in a not-so-distant future. The prevailing idea of “publish or perish” becomes imperative when researchers are applying for competitive grants or academic promotions. Choosing a suitable journal has become an important issue as thousands of journals are available. One of the aspects considered by researchers is the journal’s indexation status. Scopus continuously evaluates journals submitted by publishers for indexation, and later, to verify if quality is maintained. During this re-evaluation process, some publication concerns may be raised at journal or publisher level. Consequently, Scopus periodically issues a list of discontinued journals. However, not all journals update their websites in order to inform readers that they have been discontinued. This study shows that 56 journals that were discontinued in 2016 currently affirm on their websites that they are indexed by Scopus. In addition, another 20 journals discontinued in 2016, which do not specifically state that they are indexed by Scopus, include a widget from SCImago that may generate confusion about their current indexing situation. For some journals it seems that the emphasis is placed more on the publishing end of the business than the dissemination of research findings. This study shows that regular updates are among the responsibilities that editorial teams must maintain to ensure the quality and accuracy of the information posted on journal websites.     

Prediction of plasticizer solvency using hansen solubility parameters

The solvating strength of a plasticizer for poly(vinyl chloride) resin is a measure of the interactive forces between these two materials. Hansen's three-dimensional solubility parameters provide a quantitative measure of these interactive forces. By using CO-ACT^SM service, a computer program designed for solvent systems with various resins, plasticizers were found to lie near the edge of the solvency “sphere” of PVC. The relative positions of various plasticizer structures are in the expected order, while known solvents show strong association and lubricating additives fall outside the solvency sphere of PVC.     

Plasticizer structure/performance relationships

Plasticizers for poly(vinyl chloride) may be organized into eight chemical families and by seven key performance criteria. Cost-effective general-purpose phthalates provide a base line for comparing all other plasticizers. The wide range of performance characteristics associated with various phthalate isomers substantiates the large proportion of phthalate esters that are utilized as plasticizers. This article summarizes plasticizer structural/performance relationships using quantitative comparisons of cost, plasticizing efficiency, plastisol solvation characteristics, dryblending, volatility, and low temperature performance properties in PVC. Some generalizations are also made concerning structural effects of the alcohol isomers used in the syntheses of the various types of plasticizer esters.     

The distressed psychologist: Prevalence and treatment considerations.

Investigated the level and types of distress in a sample of 379 psychologists, using survey methodology. Overall, Ss were healthy and satisfied with work and interpersonal relationships. 10% of Ss experienced distress in the areas of depression, marital/relationship, physical illness, alcohol use, and loneliness. A distress band was calculated and ranged from 9% for multiple categories to 19% for single categories of distress. A subsample of Ss in distress from alcohol use was characterized by use of controlled drinking strategies with notable failure of these options to reduce distress levels. The authors conclude that (a) distress is a multifaceted phenomenon requiring careful examination on several levels; (b) controlled drinking strategies do not function to reduce distress among problem-drinking psychologists; and (c) verification of the distress band prevalence is needed to guide planning of intervention efforts on a state and national basis. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Perceptions of alcohol misuse and work behavior among professionals: Identification and intervention.

Examined the prevalence and effects of alcohol misuse and mental health problems on work behavior among 507 members (mean age 44.3 yrs) of the American Psychological Association (APA) who completed the Needs Assessment Survey (P. E. Nathan et al [1983]). Results indicate that at least one-third of the Ss knew of colleagues who misused alcohol on the basis of fairly overt signs of impairment. Only a select few of the Ss (n?=?61) confronted colleagues about their alcohol misuse; those confronters tended to be older men who saw clients with alcohol problems. In contrast, more Ss confronted colleagues about their mental health problems (n?=?182) and had better treatment outcomes. Considering the ambivalence of psychologists to confront colleague alcohol misuse in the presence of job-related detriment, use of the employee assistance program model of confrontation on demonstrable evidence of job decline seems appropriate. The roles of professional self-help organizations such as Psychologists Helping Psychologists in facilitating recovery of alcohol misusing psychologists and of APA in assisting psychologists in distress are discussed. (51 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rap1 protein regulates telomere turnover in yeast

Telomere length is maintained through a dynamic balance between addition and loss of the terminal telomeric DNA. Normal telomere length regulation requires telomerase as well as a telomeric protein-DNA complex. Previous work has provided evidence that in the budding yeasts Kluyveromyces lactis and Saccharomyces cerevisiae, the telomeric double-stranded DNA binding protein Rap1p negatively regulates telomere length, in part by nucleating, by its C-terminal tail, a higher-order DNA binding protein complex that presumably limits access of telomerase to the chromosome end. Here we show that in K. lactis, truncating the Rap1p C-terminal tail (Rap1p-DeltaC mutant) accelerates telomeric repeat turnover in the distal region of the telomere. In addition, combining the rap1-DeltaC mutation with a telomerase template mutation (ter1-kpn), which directs the addition of mutated telomeric DNA repeats to telomeres, synergistically caused an immediate loss of telomere length regulation. Capping of the unregulated telomeres of these double mutants with functionally wild-type repeats restored telomere length control. We propose that the rate of terminal telomere turnover is controlled by Rap1p specifically through its interactions with the most distal telomeric repeats.     

Disturbance of continuous, pump administration of cardiovascular drugs by hydrostatic pressure

Administration of highly concentrated, highly potent, and therefore highly dangerous drugs with syringe pumps is common in modern anaesthesia as well as in intensive care and emergency medicine. Because of their exact flow rates down to < 1 ml/h, these pumps are predestined for delivery of drugs with short half-lives, such as catecholamines and vasodilators. But intravenous application of drugs with syringe pumps is not without problems. While it is well known that syringes not fixed correctly into the pump can empty themselves by the influence of gravity, it seems not to be known that hydrostatic pressure can influence the flow rate of a correctly connected system even during continuous infusion. In this situation a change of height of the syringe pump in relation to the patient's position can have tremendous effects on hemodynamics due to unintended acceleration or deceleration of the flow rate. This case report demonstrates that the elevation of a connected epinephrine pump while moving a cardiac surgery patient after ACB operation from the operation table into his bed led to critical increases of heart rate, blood pressure and left atrial pressure. In order to quantify the problem we repeated the situation experimentally. It could be demonstrated that the elevation of the syringe pump by 80-100 cm delivers an additional bolus of 4-5 drops as the central venous catheter outlet. Lowering the pump consecutively leads to the opposite effect. In the case reported, the accidentally administered bolus of epinephrine was 12-15 micrograms (we use a concentration of 60 micrograms/ml epinephrine for continuous infusion with syringe pumps). From this accidental observation the following conclusion can be drawn: The change of height, in relation to the patient's position, of a running syringe pump during continuous infusion of highly concentrated cardiovascular drugs may cause considerable, even life-threatening hemodynamic disorders. Even in a closed infusion system (syringe-extension-central venous catheter), hydrostatic pressure influences infusion rate. Elevation of the pump leads to unintended bolus administration, and lowering of the pump is followed by an interruption of the infusion. In the knowledge of this phenomenon, unexpected hemodynamic reactions during transport of critically ill patients cannot always be interpreted as a result of inadequate anesthesia or volume load, but may be a consequence of incorrect handling of the syringe pumps as described in this report.     

Size and ageing of the scientific community in Chile

The size and ageing of the Chilean scientific community was studied using as data the individuals actively engaged in research projects funded by the National Fund for Scientific and Technological Development (FONDECYT). Between 1982 and 1991, 4966 individuals participated at least once, either as responsible for the research or as qualified associate in one term of the funding period. From this population, 2765 persons can be considered further committed with scientific research. As for sex, about 30% of the researchers are women. Taking into account all the disciplines, and in addition to the fact that the size of the Chilean scientific community seems to be subcritical, the study reveals that the workforce has been ageing dangerously through the years. The number of young scientists becoming part of the scientific workforce is decreasing. Research in mathematics, physics and chemistry, although qualitatively competitive, relies only on an extremely small group of excellent scientists, situation which is seriously affecting the scientific capacity that the country needs. Biology, although with a higher number of individuals, exhibits a pattern of ageing which will also affects the possibilities to strengthen the scientific demands. The global context in which science develops, leads to a brain drain that Third World countries will have to overcome, implementing public policies to offer the support that young people require to nurture the scientific strength. Indigenous Ph. D. programs demand urgent attention of policy decision makers as well as from research universities which need to offer opportunities to substitute, when existing, their incompetent faculty.     

"The distressed psychologist: Prevalence and treatment considerations": Correction.

Reports an error in the original article by R. W. Thoreson et al (Professional Psychology: Research and Practice, 1989[June], Vol 20[3], 153–258). On page 156, a variable was left out of Table 2. A corrected table is given. (The following abstract of this article originally appeared in record 1989-34534-001.) Investigated the level and types of distress in a sample of 379 psychologists, using survey methodology. Overall, Ss were healthy and satisfied with work and interpersonal relationships. 10% of Ss experienced distress in the areas of depression, marital/relationship, physical illness, alcohol use, and loneliness. A distress band was calculated and ranged from 9% for multiple categories to 19% for single categories of distress. A subsample of Ss in distress from alcohol use was characterized by use of controlled drinking strategies… (PsycINFO Database Record (c) 2010 APA, all rights reserved)