Silica gel functionalized with imidazolium group via click chemistry – new stationary phase for ion chromatography

This manuscript describes the preparation of a simple effective ion-exchange material based on silica gel, on the surface of which methylimidazolium bromide is fixed using a click reaction. The resulting material was used as a stationary phase for the separation and determination of Cl–, NO2–, NO3–, I–, and SO42– using ion exchange chromatography. The separation efficiency and retention factors for the selected anions were studied in the pH range 3.5–6.5. The proposed material was used for the determination of Cl–, SO42– in water and can be suggested for successful use in real water samples.

A Study of Faculty Retention Factors in Educational Institutes in Context With ABET

A typical higher education institute classically has all the five major constituents, i.e. current students, alumni, faculty members, employers and industrial advisory board. Expectations of the rest of the constituents are fully dependent on the faculty members, as they play a pivotal and backbone role in building up an educational institute, to a high repute. Faculty members provide the knowledge and skills necessary to students, to address market needs. Letting go of skilled, professional and enthusiastic faculty members can have a huge impact on any higher education institution’s reputation and in fulfilling the market needs. In this research, we explore the different influencing factors and criteria for retaining teaching staff at schools and higher education institutes. These criteria are then evaluated against Accreditation Board of Engineering and Technology (ABET) accredited institutes criteria data of “faculty” and “Institutional support,” to see the impact. Study shows that only very few faculty members leave the institution because of higher student-to-faculty ratio or denial of tenure. Also, most of institutions concentrate on providing reduced number of lecture hours per week to keep their faculty members happy and perform research at the institution. Out of 737 faculty members of 27 institutes included in this study, only 0.54% faculty members left ABET accredited institutions.

Microeconometric Approaches in Exploring the Relationships Between Early Alert Systems and Student Retention: A Case Study of a Regionally Based University in Australia

Early alert systems (EAS) are an important technological tool to help manage and improve student retention. Data spanning 16,091 students over 156 weeks was collected from a regionally based university in Australia to explore various microeconometric approaches that establish links between EAS and student retention outcomes. Controlling for numerous confounding variables, significant relationships between the EAS and student retention were identified. Capturing dynamic relationships between the explanatory variables and the hazard of discontinuing provides new insight into understanding student retention factors. We concluded that survival models are the best methods of understanding student retention when temporal data is available.

Simultaneous analysis of eprosartan and hydrochlorothiazide in tablet formulation by High- Performance thin layer chromatography with ultraviolet absorption densitometry

A new, simple, accurate, and precise high-performance thin-layer chromatographic method has been established for simultaneous analysis of Eprosartan and Hydrochlorothiazide from a tablet formulation. Standard and sample solutions of Eprosartan and Hydrochlorothiazide were applied to precoated 250 μm layer of silica gel G 60 F and the plates were developed with Chloroform: Acetonitrile: Glacial Acetic Acid (7:3:1,v/v/v) as mobile phase. Detection and evaluation of densitograms was performed densitometrically at 254 nm. The linear range was 200-700 ng/band with the retention factors of Eprosartan and Hydrochlorothiazide were 0.26± 0.02 and 0.44±0.02, respectively. The method was validated and successfully used for analysis of the drugs in tablets.

RETENÇÃO DE TALENTOS E A IMPORTÂNCIA DA CULTURA ORGANIZACIONAL

This article aims to analyze the factors that promote talent retention in companies and demonstrate the importance of organizational culture. In the current information information age, people are considered important, because they are the ones who generate results for companies, especially talented professionals, high performance, who perform deliveries of excellence and contribute to excellence and contribute to their competitiveness. The retention occurs through a conjunction of factors, combining financial and non-financial rewards. However, talented talented professionals are only retained if there is an alignment of their values with those of the organization, when they feel that their work is valued, and also when there is a feeling of belonging of belonging to the organization. The organizational culture plays a fundamental role in these talent retention factors and cannot be neglected. For, the incompatibility of individual values with the values advocated by the organization generates friction provoking the talents to leave. This inevitably causes a loss of knowledge for the company and may interfere with its level of competitiveness.

Development and Validation of Retention Models in Supercritical Fluid Chromatography for Impregnation Process Design

The retention factor is the key quantity for the thermodynamic analysis of the retention mechanism in chromatographic experiments. In this work, we measure retention factors for moderately polar solutes on four silica-based porous matrices as stationary phases by supercritical fluid chromatography. Elution of the solutes is only possible with binary mixtures of supercritical carbon dioxide (sc-CO2) and modifier (methanol) due to the low polarity of pure sc-CO2. The addition of modifiers makes the retention mechanism more complex and masks interactions between solute and stationary phase. In this work, we develop and validate several retention models that allow the obtaining of retention factors in modifier-free sc-CO2. Such models pave the way for quantifying adsorption interactions between polar solutes and non-swellable porous matrices in pure sc-CO2 based on retention data obtained in sc-CO2/modifier mixtures. The obtained information will thereby facilitate the understanding and design of impregnation processes, which are often performed in modifier-free conditions.

Securing Participant Engagement in Longitudinal Substance Use Disorder Recovery Research: A Qualitative Exploration of Key Retention Factors

The longitudinal cohort study is the gold standard in observational epidemiology. A central challenge with this design is the risk of attrition over time, especially in studies of inaccessible clinical populations, such as individuals with substance use disorder (SUD). Research on individuals who have achieved stable substance use abstinence and functional recovery is scarce. 30 participants from a longitudinal cohort study (the Stayer study), were interviewed concerning their experiences of participation over several years to explore retention factors. Interviewers with first-hand experience of recovery from SUD conducted the interviews. Data were analyzed using a thematic analytic approach within an interpretative–phenomenological framework. The analyses yielded the following themes: (1) Individuals’ substance use: adaptation to slips and relapses in treatment and research, (2) “Show that you care”: Developing working relationships in research with study participants by negotiating expectations flexibly, and (3) “You don’t just make dropouts”: A long-term focus on study participation and treatment can increase retention. Several factors were perceived as relevant to participation in a long-term follow-up study with diverse recovery routes, including working research relationships and explicit contracts allowing follow-up participation, even during periods of drug use. Longitudinal studies could benefit from including such factors in the tracking procedures in addition to more traditional tracking techniques. Clinical services could benefit from developing interventions that use knowledge of long-term recovery processes as non-linear, heterogeneous trajectories, and proactive approaches to motivate recovery.

46 The Hidden Truth About Gender Bias in Surgery. A Systematic Review

Introduction Gender discrimination remains pervasive in surgery, significantly impacting current and future surgeons and population health. This study analyses the gender barriers and critical retention factors for female surgeons and trainees in surgery. Method Five electronic databases were searched till May 2020. Titles and abstracts were sieved, followed by a full text review. Data synthesis and inductive thematic analysis were conducted using the Thomas and Harden methodology. Result 14 articles were included, involving 528 participants. Four themes were generated–unfavourable working environment, male-dominated culture, societal pressures and progress towards gender equality. Females in surgery often faced harassment, disrespect and perceptions of incompetence, resulting in hostile work conditions, which were aggravated by the inadequate support and mentorship. The persistence of male-dominated cultures was observed, with females facing prejudice and exclusion from professional and social circles. Differential treatment and higher expectations of female surgeons also arose from entrenched societal pressures. Despite these, increased acceptance of motherhood and greater recognition of contributions by female surgeons were reported, indicating some progress in gendered culture. Conclusions There is a need to increase female surgical leadership and allocate resources to address the deep-rooted causes of biased surgical culture and ingrained perceptions, to achieve greater gender equality in surgery.