bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of Mg2+ ion on Structural, Morphological, FTIR, Dielectric and AC Conductivity of PVDF-HFP Based Solid Polymer Electrolytes and Application to Electrochemical Cell
Authors: Mallikarjun Anna , Mahendrakar Sangeetha , Reddy M Vikranth , Reddy M Jaipal , Kumar J Siva , Sreeka T
Published: May 2021

In this paper, solid polymer electrolytes comprising of Poly (vinylidene-fluoride-hexafluoropropylene) (PVDF-HFP) polymer and Mg (ClO4)2 salt were prepared by employing the solution casting technique. The fabricated polymer-salt electrolyte membranes are exposed to XRD, FTIR and SEM studies. The real and imaginary part of dielectric permittivity is illustrated with the Cole-Cole plot. Static dielectric constant \({(\epsilon }_{s})\), dynamic dielectric constant \(\left({\epsilon }_{\infty }\right)\), dielectric strength \(({\Delta }\epsilon\)), dielectric loss (tanδ) and relaxation time (τ) are determined using the Cole-Cole plot. The electrochemical properties; cell stability, cell discharge characteristics, dc and ac conductivity are analyzed. Structural studies of XRD peaks are broadened to confirm the amorphous phase of polymer matrix. Morphological studies shows the presence of interlinked micro-pores promote for ease of mobility of Mg2+ ions which attribute to enhance ionic conductivity. The static dielectric constant \({(\epsilon }_{s})\), dynamic dielectric constant \(\left({\epsilon }_{\infty }\right)\), dielectric strength \(({\Delta }\epsilon\)), dielectric loss (tanδ) reach maximum but relaxation time (τ) decreases for an optimal concentration ratio of (100:40) PVDF-HFP: Mg (ClO4)2 that reveals fast hopping of ions from one site of the polymer chain to another. The highest ionic conductivity of 7.73333x 10− 4 Scm− 1 is obtained at room temperature for [PVDF-HFP: Mg(ClO4)2] polymer-salt electrolyte. The cell discharge characteristics of OCV and SCC of Mg/ [PVDF-HFP: Mg(ClO4)2] /I + C cell are found to be 1.8 V and 120 mA respectively The electrochemical stability was observed with a constant voltage of 0.43volt in a positive cycle and 0.4 volts of negative potential which favors an electrochemical membrane for battery applications
Comparative metabolic profiling of posterior parietal cortex, amygdala, and hippocampus in conditioned fear memory
Authors: Jeon Yoonjeong , Yeom Jiwoo , Kim Eun-Kyoung
Published: May 2021

Fear conditioning and retrieval are suitable models to investigate the biological basis of various mental disorders. Hippocampus and amygdala neurons consolidate conditioned stimulus (CS)-dependent fear memory. Posterior parietal cortex is considered important for the CS-dependent conditioning and retrieval of fear memory. Metabolomic screening among functionally related brain areas provides molecular signatures and biomarkers to improve the treatment of psychopathologies. Herein, we analyzed and compared changes of metabolites in the hippocampus, amygdala and posterior parietal cortex under the fear retrieval condition. Metabolite profiles of posterior parietal cortex and amygdala were similarly changed after fear memory retrieval. While the retrieval of fear memory perturbed various metabolic pathways, most metabolic pathways that overlapped among the three brain regions had high ranks in the enrichment analysis of posterior parietal cortex. In posterior parietal cortex, the most perturbed pathways were pantothenate and CoA biosynthesis, purine metabolism, glutathione metabolism, and NAD+ dependent signaling. Metabolites of posterior parietal cortex including 4′-phosphopantetheine, xanthine, glutathione, ADP-ribose, ADP-ribose phosphate, and cyclic ADP-ribose were significantly regulated in these metabolic pathways. These results point to the importance of metabolites of posterior parietal cortex in conditioned fear memory retrieval and may provide potential biomarker candidates for traumatic memory–related mental disorders.
Fabrication, characterization, and application of polyaniline/Ni(II) metal-organic frameworks nanocomposite as a supercapacitor electrode material
Authors: Ansari-Asl Zeinab , Dezfuli Amin Shiralizadeh
Published: May 2021

Metal-organic frameworks (MOFs), owing to their tunable porosity, high surface area, and diversity were investigated as potential supercapacitor materials. PANI/Ni-MOF, a nanocomposite of Ni-MOF and polyaniline (PANI), was fabricated by in situ solvothermal synthesis of Ni-MOF in the presence of the as-obtained PANI. The prepared products were studied using FT-IR, PXRD, SEM, and EDS-mapping techniques. EDS-mapping results exhibited the uniform dispersion of Ni-MOF into the polymeric matrix. Electrochemical properties of the pure Ni-MOF and PANI/Ni-MOF were investigated through CV (cyclic voltammetry), GCD (galvanostatic charge/discharge), and EIS (electrochemical impedance spectroscopy) methods in a three-electrode system. The as-fabricated PANI/Ni-MOF nanocomposite exhibited outstanding electrochemical performance owing to the synergistic effects of PANI with proper conductivity and the Ni-MOF’s porous structure, obtaining an excellent specific capacitance of 601 F g− 1 at 1 A g− 1. Additionally, this supercapacitor material showed a remarkable cycle life after 5000 charge/discharge test, 99.5 % retention of its specific capacitance. These excellent properties would make PANI/Ni-MOF nanocomposite as a proper candidate for supercapacitor electrode material. .
Environmental impact on the toxicologically relevant arsenic species in ground water of 2nd aquifer of coal mining area and release in a reservoir: Risk assessment to aquatic life
Authors: Unar Asif , Kazi Tasneem , Memon Shahabuddin
Published: May 2021

In present study, the variation in the concentrations of inorganic As species (penta and trivalent) in ground water of coal mining area (2nd aquifer) and its drain outlet/discharge in a reservoir/gorano dam. The water samples were collected from reservoir at four different sites (RW1, RW2, RW3 and RW4. At site four of reservoir (RW4) the fish farming is also carried out, from where a fish species Tilapia (Oreochromis mossambicus) was also collected. The solid phase extraction using titanium dioxide as an adsorbent was applied for the determination of inorganic As. The arsenite (AsIII) was found by an advance extraction method (cloud point extraction) by means of a hydrophobic chelating reagent and the obtained hydrophobic complex was deceived in a surfactant (Triton X-114). Physico-chemical, parameters of all water samples collected from ground water of aquifer 2 of coal mining area (AQ2), drain/discharge outlet (DW) and four sites of reservoir/Gorano dam were carried out. The resulted data indicated that physicochemical parameters (conductivity, total dissolved salt, pH) of all collected samples were surpassed the WHO recommended values for drinking water excluding pH. The different organs (gills, scale, liver and muscles) of O. mossambicus were analyzed for total As. The resulted data designated that accretion of As in various tissues of selected fish species was found in decreasing order as liver > gill > muscles > scale. The bioaccumulation factor was calculated > 28. To evaluate the exposure of As via consuming the fish muscles by people was calculated by daily intake of As (EDI), and found to be significantly higher than the allowable limit (2.1 µg/Kg/day) by food organizations.
Is this an epic innovation? Electronic health record implementation and healthcare workers’ work characteristics and autonomous motivation – a before-and-after study
Authors: Veenstra Gepke L , Rietzschel Eric F. , Molleman Eric , Heineman Erik , Pols Jan , Welker Gera A
Published: May 2021

Background Technological innovation in healthcare is often assumed to contribute to the quality of care. However, the question how technology implementation impacts healthcare workers has received little empirical attention. This study investigates the consequences of Electronic Health Record (EHR) implementation for healthcare workers’ work motivation. The consequences of EHR implementation for healthcare workers’ autonomous work motivation are hypothesized to be mediated by changes in perceived work characteristics (job autonomy and interdependence). Additionally, a moderating effect of profession on the relationship between EHR implementation and work characteristics is explored.Methods A quantitative uncontrolled before-and-after study was performed among employees from a large university medical centre in the Netherlands. Data were analysed following the component approach for testing a first stage moderated mediation model, using Generalized Estimating Equations (GEE). Results A total of 456 healthcare workers (75 physicians, 154 nurses, 145 allied healthcare professionals, and 82 administrative workers) finished both the baseline and the follow-up survey. After EHR implementation, job autonomy decreased, whereas interdependence increased. In line with our hypothesis, job autonomy was positively associated with autonomous motivation. Interdependence showed the same association, which we did not anticipate. Autonomous motivation was stable over the course of EHR implementation. This study did not provide support for a moderating effect of profession, meaning that no differences were observed between the various professions regarding the changes in their experienced job autonomy and interdependence after EHR implementation. Conclusions Our study showed that healthcare professionals’ work characteristics, but not their autonomous motivation, are affected by EHR implementation, and that these experiences were relatively similar for physicians, nurses, allied healthcare professionals. The stability of healthcare workers’ autonomous motivation may be explained by the opposite effects of decreased job autonomy and increased interdependence, and the EHR being in line with healthcare workers’ values. The changes in job autonomy and interdependence may have consequences beyond motivation, for example by affecting clinical decision making, proactive behaviour, and the quality of teamwork. These potential consequences of EHR implementation warrant further research.
Blocking ActRIIB signaling and restoring appetite reverses cachexia and improves survival in mice with lung cancer
Authors: Queiroz Andre Lima , Ramsamooj Shakti , Dantas Ezequiel , Zunica Elizabeth , Liang Roger , Murthy Anirudh , Murphy Charles , Holman Corey , Bare Curtis , Ghahramani Gregory , Wu Zhidan , Cohen David , Kirwan John , Cantley Lewis , Axelrod Christopher , Goncalves Marcus
Published: May 2021

The cancer anorexia-cachexia syndrome (CACS) is a common, debilitating condition with limited therapeutic options. The defining feature of CACS is weight loss, which suggests a state of negative energy balance. It is unclear whether this net reduction in energy is due solely to anorexia or if a combination of anorexia and increased energy expenditure (EE) occurs. To address this question, we induced lung cancer in mice and measured changes in food intake, EE, and body composition. Mice with CACS developed reductions in food intake, spontaneous activity, and EE. There was severe atrophy and markers of metabolic dysfunction in the adipose and skeletal muscle tissues as compared to mice without CACS and pair-fed wild-type mice. We used anamorelin fumarate (Ana), a ghrelin receptor agonist, alone or in combination ActRIIB-Fc, a ligand trap for TGF-β/activin family members, to reverse anorexia and skeletal muscle atrophy, respectively. Ana effectively increased food intake and the combination of drugs increased lean mass, restored spontaneous activity, and improved overall survival. These beneficial effects were limited to female mice. Our findings suggest that multimodal, gender-specific, therapies are needed to reverse CACS.
Symptom shift in 200 patients with H63D syndrome associated with abnormal TCS findings in substantia nigra
Authors: Adams Jacob S. , Kaufmann Marianne , Honda Riku , Smith Lucas , Seideman David
Published: May 2021

In a study on the prevention of injury in patients with H63D syndrome and cataplexy, statistical analysis revealed an unexpected but clinically highly significant finding. Apparently, in this patient population, an inverse correlation exists between the severity of tic symptomatology on the one hand and narcolepsy with cataplexy on the other hand, as well as a parallel increase in the typical signs of degeneration observed in transcranial sonography of the substantia nigra. This finding has clinically far-reaching implications.
Study of the suitable value of dead-time between control signals of transistors for a series-resonant inverter with phase-shift control in induction heating systems
Authors: Herasymenko Pavlo
Published: May 2021

Induction heating provides contactless, energy-efficient, accurate, and fast heating of electrically conductive materials. Due to its advantages, IH is increasingly used in different fields such as industry, medicine, and the household sector. High-frequency transistor converters for the induction heating system are often based on series-resonant inverters. This paper analyzes a phase-shift-controlled voltage-source series-resonant inverter for induction heating systems. Mathematical analysis was performed in order to obtain the expressions that describe the output current of the phase-shift-controlled series-resonant inverter in the steady-state mode. Based on the analysis and the obtained expressions of the output current, analytical expressions of the dead-time between the transistors’ control signals of the SRI are obtained. The analytical expressions for determining the value of the dead-time are obtained for two cases:

1) zero value of the phase-shift;

2) the phase shift is greater than zero.

To verify the obtained analytical expressions of the output current, validation was performed in the MATLAB/Simulink environment by comparing the peak current values.

The verification showed the high accuracy of the obtained expressions, the deviation between the calculated and simulated values of the peak current is less than 0.1 %. The made simplifications of the dead-time expressions also were verified by calculation, the deviation between the calculated values of the drain-to-source voltage at the end of the commutation and the expected value is no more than 3.6 %. The SRI prototype has been designed and implemented in order to validate the analytical and simulation results
Comparison of a novel dominance-based differential evolution method with the state-of-the-art methods for solving multi-objective real-valued optimization problems
Authors: Tuncay Mustafa , Haydar Ali
Published: May 2021

Differential Evolution algorithm (DE) is a well-known nature-inspired method in evolutionary computations scope. This paper adds some new features to DE algorithm and proposes a novel method focusing on ranking technique. The proposed method is named as Dominance-Based Differential Evolution, called DBDE from this point on, which is the improved version of the standard DE algorithm. The suggested DBDE applies some changes on the selection operator of the Differential Evolution (DE) algorithm and modifies the crossover and initialization phases to improve the performance of DE. The dominance ranks are used in the selection phase of DBDE to be capable of selecting higher quality solutions. A dominance-rank for solution X is the number of solutions dominating X. Moreover, some vectors called target vectors are used through the selection process. Effectiveness and performance of the proposed DBDE method is experimentally evaluated using six well-known benchmarks, provided by CEC2009, plus two additional test problems namely Kursawe and Fonseca & Fleming. The evaluation process emphasizes on specific bi-objective real-valued optimization problems reported in literature.

Likewise, the Inverted Generational Distance (IGD) metric is calculated for the obtained results to measure the performance of algorithms. To follow up the evaluation rules obeyed by all state-of-the-art methods, the fitness evaluation function is called 300.000 times and 30 independent runs of DBDE is carried out. Analysis of the obtained results indicates that the performance of the proposed algorithm (DBDE) in terms of convergence and robustness outperforms the majority of state-of-the-art methods reported in the literature
The comparison study of the monopole tower foundation using CPT and laboratory data in Gresik district, East Java-Indonesia
Authors: Sudjianto Agus Tugas , Aditya Chandra , Halim Abdul , Fachrudin Fachrudin
Published: May 2021

In the millennial era, the development of information and communication technology is very fast, one of the telecommunications infrastructure is a monopole type telecommunications tower. This type of tower is one of 3 types of telecommunication towers whose main construction is made of steel. The monopole structure is supported by a tread foundation, which is one type of shallow foundation. The main factor in the design of the tread foundation is the bearing capacity factor. Calculation of foundation bearing capacity can be done directly in the field using Sondir data (CPT) and indirectly using laboratory data. In this study a study was conducted to compare the carrying capacity of monopole foundations between field data methods in the form of Sondir data or CPT with result data. Soil tests in the laboratory calculated with the Terzaghi formula. The research location was carried out in Gresik Regency, East Java Province, Indonesia at 3 sites, namely: Mojosarirejo, Kembangan Kebomas and Setromenganti. The results of the comparison of the calculation of the bearing capacity of the foundation (Q) at the Mojosarirejo site with the type of sandy soil. value of QSondir < 9.58 % of Qterzaghi. At the Krembangan Kebomas site with brown clay and gravely clay, the Q value was < 69.93 % of the Qterzaghi and at the Setromenganti site with brown clay soil type with the influence of water level depth – 1 m, the Q value was < 27, 62% of Qterzaghi. From the comparison of the average calculation in the 3 study locations, the bearing capacity of QSondir treads foundation is 26.50 % smaller than Qterzaghi, so the use of Sondir data is more accurate for use in tread foundation planning and provides greater security assurance for the tower foundation structure. monopole type
The Continuity of Students’ Disengaged Responding in Low-stakes Assessments: Evidence from Response Times
Authors: BULUT Hatice Cigdem
Published: May 2021

Several studies have been published on disengaged test respondents, and others have analyzed disengaged survey respondents separately. For many large-scale assessments, students answer questionnaire and test items in succession. This study examines the percentage of students who continuously engage in disengaged responding behaviors across sections in a low-stakes assessment. The effects on calculated scores of filtering students, based on their responding behaviors, are also analyzed. Data of this study came from the 2015 administration of PISA. For data analysis, frequencies and percentages of engaged students in the sessions were initially calculated using students' response times. To investigate the impact of filtering disengaged respondents on parameter estimation, three groups were created, namely engaged in both measures, engaged only in the test, and engaged only in the questionnaire. Next, several validity checks were performed on each group to verify the accuracy of the classifications and the impact of filtering student groups based on their responding behavior. The results indicate that students who are disengaged in tests tend to continue this behavior when responding to the questionnaire items in PISA. Moreover, the rate of continuity of disengaged responding is non-negligible as can be seen from the effect sizes. On the other hand, removing disengaged students in both measures led to higher or nearly the same performance ratings compared to the other groups. Researchers analyzing the dataset including achievement tests and survey items are recommended to review disengaged responses and filter out students who are continuously showing disengaged responding before performing further statistical analysis.
Development of the Hostility in Pandemic Scale (HPS): A Validity and Reliability Study
Authors: TUNÇ Emine Burcu , PARLAK Simel , ULUMAN Müge , ERYİGİT Derya
Published: May 2021

The aim of this research is to develop Hostility in Pandemic Scale (HPS) for Turkey Population to determine the hostility levels of individuals, which is a factor affecting the mental well-being of the society during the pandemic. The study group consists of 855 individuals between the ages of 18-65 from different genders, and have experienced the pandemic process. For the construct validity of the scale results, exploratory factor analysis was conducted and a one-dimensional structure consisting of 22 items was revealed. It was determined that the variance explained by the scale showing a one-dimensional structure was 41.5%. As a result of the confirmatory factor analysis performed through a separate study group, it was revealed that all items have significant t values, and the model established according to model fit indexes has meaningful and acceptable fit values. Buss-Perry Aggression Scale was applied with HPS for the criterion validity. As a result of the criterion validity analysis, a significant relationship was found between the scale scores. The Cronbach Alpha was calculated to analyses internal consistency of the scale and a reliability level of 0.93 was obtained. The test-retest reliability results were found as 0.89. In addition, item statistics revealed that all of the scale items can discriminate well among the respondents. Results of the analysis revealed that, the Hostility Scale in Pandemic Process provides valid and reliable results.
Thermo-optical bistability in silicon micro-cantilevers
Authors: Pottier Basile , Bellon Ludovic
Published: May 2021

We report a thermo-optical bistability observed in silicon micro-cantilevers irradiated by a laser beam with mW powers: reflectivity, transmissivity, absorption, and temperature can change by a factor of two between two stable states for the same input power. The temperature dependency of the absorption at the origin of the bistability results from interferences between internal reflections in the cantilever thickness, acting as a lossy Fabry-Pérot cavity. A theoretical model describing the thermo-optical coupling is presented. The experimental results obtained for silicon cantilevers irradiated in vacuum at two different visible wavelengths are in quantitative agreement with the predictions of this model.
Comparative influence of gender, age, industry and management level on communication
Authors: Lipovka Anastassiya , Korolyova Natalya , Nugmanova Maigul , Salimzhanova Aizhan
Published: May 2021

The protracted COVID-19 pandemic repeatedly demonstrates the necessity of effective communication inside and outside organizations. However, a deficient comprehensive study of factors able to affect managerial communication limit further progress in the improvement of such business interactions. The research fills in the knowledge gap about the comparative influence of various factors on managerial communication and particularly the impact of individual and organizational characteristics of managers on communication. The paper aims to determine the significance of the relationships between managerial communication and age, genders, managerial levels, and industries in private companies from the energy, education, trade, service, extraction, construction, and production sectors. Within the organizational study, 224 subordinates from Kazakhstan firms reflected on their supervisors’ communications through a multivariate closed questionnaire. The obtained data was further processed and examined through correlation coefficients and dispersion analysis. The research results identified the considerable relationship between communication practices and managers’ age (R2=0.9637), managerial level (R2=0.9640), and industry (R2=0.9653). The study reveals the weak relationship between manager’s gender and communication practices (R2=0.1535): women insignificantly outperform men in this linking process. The research postulates that effectiveness of managerial communication considerably varies by managers’ age, managerial level, and industry, and insignificantly by gender. The paper lays the groundwork for gender-unbiased practices of human resource management and contributes to the idea of building diverse management teams.
The influence of debt policies, profitability and corporate social disclosures responsibility to tax agresivity
Authors: Khafifah Afiyatul
Published: May 2021

Purpose - The research objective is to determine the effect of debt policy, profitability, and Corporate Social Responsibility (CSR) on tax aggressiveness in mining sector companies listed in the Indonesian Sharia Stock Index for the period 2014-2019.Method - The population of this study was 35 mining companies listed on the Indonesian Sharia Stock Index for 2014-2019. The sample selection in this study used purposive sampling method and 6 companies were selected. The data analysis used multiple linear regression analysis. Three tests were conducted; determinant coefficient test, simultaneous significant test, and partial regression test (T-Test).Result - The results show that debt policy (DAR) has a significant negative effect on tax aggressiveness, Profitability (ROA) has a significant negative effect on tax aggressiveness, and disclosure of Corporate Social Responsibility (CSR) has a significant negative effect on tax aggressiveness.Implication - Mining companies registered in the ISSI for the 2014-2019 period have proven that their tax aggressiveness is low, which means they are compliant with tax payments. However, on the other hand, the company must maintain and improve compliance in paying taxes.Originality - This study is the first study using a sharia mining company registered with the ISSI related to tax aggressiveness.
Analysis of the implementation of Indonesia Financial Accounting Standards number 109 at the National Management Agency of West Kalimantan Province
Authors: Riyadhi Baidhillah , Prasetyo Henri , Fiorintari Fiorintari
Published: May 2021

Purpose - This research aims to determine the implementation of Indonesia Financial Accounting Standards (PSAK) 109 at the National Zakat Management Agency (Baznas) of West Kalimantan Province.Method - The research was conducted using a qualitative descriptive research method to describe events in the research field, in the form of reports and distribution of Zakat, Infaq and Shadaqah (ZIS) in 2017 and 2018, then compared with PSAK 109.   Result - The results showed that the implementation of PSAK 109 in the recognition and measurement section of Baznas in West Kalimantan Province can be stated in accordance with PSAK 109. Meanwhile, the implementation of PSAK 109 in the presentation, disclosure and component of financial statements in Baznas of West Kalimantan Province has not fully implemented PSAK 109 as a whole.Implication - The implication of this research is expected to help Baznas of West Kalimantan Province in implementing PSAK 109 so that public trust can increase in the management of ZIS funds.Originality - The uniqueness of this research compared to several previous researches can be seen from the object of research that was first conducted at Baznas of West Kalimantan Province and the research used the data in the last 2 years.
The Relationship between Dominance and Resistance in the Novel High Fidelity
Authors:   University of Novi Sad, Faculty of Philosophy, Živanović Aleksandar
Published: May 2021

This paper provides an analysis of the relationship of dominance and resistance in the novel High Fidelity. The aim of the paper is to identify the elements of popular culture in the novel and thus determine the nature of possible relationships in a patriarchal, capitalist society. The theoretical framework used in the paper is Fiske’s theory of popular culture (2001) and the analysis is based on regarding the characters as representatives of dominant and resistant forces. Men and the upper class constitute categories which are dominant in the relationship with subordinate ones – women and the lower class. In addition, the protagonist Rob is the prototype of a man who is subordinate to himself, i.e. to his representation of ideal male traits he lacks, according to his own beliefs. The subordinate put up resistance in different ways. Laura is a successful business woman who possesses a strong character, which places her into a better position than that of Rob. The protagonist uses music as one of the ways to express his resistance. As a lower class member (i.e. a poor entrepreneur), the protagonist opposes upper class members (wealthy entrepreneurs) in that he possesses moral principles which they often lack.
A Long-Awaited Study
Authors:   University of Belgrade, Faculty of Philology, Vukićević Dragana
Published: May 2021

Review of: Pandurević, Jelenka (2020), Folklorni erotikon. Erotika i poetika srpskih narodnih pjesama, Višegrad: Andrićev institut.
Jovan Popovʼs Apology of Reading
Authors:   University of Banja Luka, Faculty of Philology, Simanović Igor
Published: May 2021

Review of: Popov, Jovan (2020), Pojmovi, periodi, polemike, Beograd: Srpska književna zadruga.
On Perspectives and Limitations of Application of Dependency Grammar and Valency Theory in Serbian Studies
Authors:   University of Banja Luka, Faculty of Philology, Lero Maksimović Sonja
Published: May 2021

Review of: Milivoj Alanović (2019), O dopunama i dopunjavanju u srpskom jeziku, Novi Sad: Filozofski fakultet.
Lentic and effluent water of Delhi-NCR: a reservoir of multidrug-resistant bacteria harbouring blaCTX-M, blaTEM and blaSHV type ESBL genes
Authors: Ali Asghar , Sultan Insha , Mondal Aftab Hossain , Siddiqui Mohammad Tahir , Gogry Firdoos Ahmad , Haq Qazi Mohd. Rizwanul
Published: May 2021

Antimicrobial resistance is not restricted to clinics but also spreading fast in the aquatic environment. This study focused on the prevalence and diversity of extended-spectrum β-lactamase (ESBL) genes among bacteria from lentic and effluent water in Delhi-NCR, India. Phenotypic screening of 436 morphologically distinct bacterial isolates collected from diverse sites revealed that 106 (∼24%) isolates were ESBL positive. Antibiotic profiling showed that 42, 60, 78 and 59% ESBL producing isolates collected from Ghazipur slaughterhouse, Lodhi garden pond, Hauz Khas lake and Jasola wastewater treatment plant, respectively, were multidrug-resistant (MDR). The multiple antibiotic resistance (MAR) index varied from 0.20 to 0.32 among selected locations. The prevalence of ESBL gene variants blaSHV, blaTEM and blaCTX-M were found to be 17.64, 35.29 and 64%, respectively. Furthermore, the analysis of obtained gene sequences showed three variants of blaCTX-M (15, 152 and 205) and two variants of blaTEM (TEM-1 and TEM-116) among ESBL producers. The co-existence of 2–3 gene variants was recorded among 48% ESBL positive isolates. New reports from this study include the blaCTX-M gene in Acinetobacter lwoffii, Enterobacter ludwigii, Exiguobacterium mexicanum and Aeromonas caviae. Furthermore, the identification of blaTEM and blaSHV in an environmental isolate of A. caviae is a new report from India.
Scope and Challenges of 3D Printing in Organ Transplantation
Authors: Shah Naman , Jain Sarthak , Jain Priyal , Thakur Mamta
Published: May 2021

Background:

The influx of 3D printing in organ transplantation is currently a rigorous
area of research, and its success is still cynical. This review article focuses mainly on the scope and
challenges in the applications of 3D printing in organ transplantation. The basic idea of the article is
to highlight the current status of 3D printing in the area of organ transplants.

Introduction:

The review article covers the highlights about the 3D printing, major steps incurred in
the 3D printing of organs, challenges in the 3D printing and transplantation of organs, and future
prospects (scope) in the area with special reference to the problem and failures encountered in organ
transplantation of 3D printed organs.

Method:

The findings from available studies have been consolidated in the review article to provide
insight into the scope and challenges in the area of 3D printed organ transplantation.

Result:

In the review study, it has been found that there are certain limitations of the 3D printed
material based on the survival and multiplication in the in-vivo environment, which subsequently
leads to the bio incompatibility of the organs. In addition to this, some other limitations which provide
further scope of research in this area are also included.

Conclusion:

It has been concluded that 3D printing is an emerging solution in organ transplantation
and prosthetics, but still more refinement and technological advancement is needed to make it a
completely feasible solution. Doctors, scientists, and engineers need to work in a cross-disciplinary
manner to overcome the limitations and develop this technique further for the betterment of mankind.
Hacia la reconversión productiva del cultivo de cebolla de rama en la cuenca del lago de Tota (Boyacá, Colombia)
Authors: Rodríguez Robayo Karla Juliana , Martínez Camelo Fabián Enrique , Herrera Heredia Carlos Alberto
Published: May 2021

La cuenca del lago de Tota presenta actualmente distintas problemáticas socioambientales debido a la presión histórica que han ejercido el uso del recurso hídrico y las actividades productivas que se realizan en la región. Dada esta situación se hace necesario implementar una estrategia para gestionar el cambio progresivo de los sistemas de producción actuales que no sean compatibles con el ecosistema hacia modelos de producción armónicos con la conservación de los recursos naturales. Este documento es una herramienta que orienta a los agricultores en los primeros pasos de su recorrido hacia la transformación productiva, al tiempo que constituye un testimonio de su compromiso y del trabajo que han realizado para lograrlo.
Kegagalan Kognitif Karyawan di Masa Pandemi: Apakah Pengaturan Kerja Fleksibel dan Persepsi Kontrol Berperan?
Authors: Virginia Dea Shahnaz , Etikariena Arum
Published: May 2021

Situasi pandemi COVID-19 yang tengah terjadi saat ini, berdampak pada pembatasan aktivitas manusia, salah satunya dalam hal pekerjaan. Sebagian besar perusahaan memutuskan menerapkan pengaturan kerja fleksibel bagi para karyawan. Selain untuk membatasi penyebaran virus, bekerja secara fleksibel berperan dalam menurunkan kegagalan kognitif individu, baik di tempat kerja maupun di rumah. Selain itu kontrol yang baik juga membantu penurunan kegagalan kognitif yang dialami karyawan. Responden penelitian merupakan karyawan perusahaan di Indonesia yang berjumlah 225 orang. Data dianalisis menggunakan program makro PROCESS oleh Hayes. Hasil penelitian menunjukkan persepsi kontrol di tempat kerja berperan sebagai mediator dalam hubungan antara pengaturan kerja fleksibel dengan kegagalan kognitif di tempat kerja (β = -0,003, SE = 0,01, 95% BCa CI [-0,07. -0,01]). Akan tetapi, tidak ditemukan peran mediator dalam hubungan antara pengaturan kerja fleksibel dengan kegagalan kognitif di rumah, maupun dalam hubungan lintas domain. Penelitian ini bertujuan untuk melihat peran penerapan pengaturan kerja fleksibel terhadap kontrol individu atas tanggung jawab pekerjaan dan rumah tangga, yang dapat menurunkan kegagalan kognitif individu, khususnya dalam situasi pandemi.
Reduksi Dimensi untuk Meningkatkan Kinerja Pengklasteran Perilaku Siswa pada Sistem e-Learning
Authors: Yamasari Yuni , Naim Rochmawati  , Anita Qoiriah  , Asmunin  , Atik Wintarti
Published: May 2021

Pandemi corona telah mengubah proses pembelajaran dari yang semula tatap muka secara langsung (offline) menjadi pembelajaran secara daring (online). Pembelajaran daring ini menyebabkan kesulitan dalam pemantauan perilaku siswa oleh guru karena berkurangnya interaksi secara langsung. Lebih dari itu, siswa seringkali merasa terisolasi sehingga jika dibiarkan, situasi ini akan menyebabkan kegagalan dalam prestasi belajarnya. Permasalahan ini mendorong banyak dilakukannya penelitian tentang pemodelan yang berkaitan dengan perilaku siswa. Namun, para peneliti sebelumnya tidak banyak yang fokus pada peningkatan kinerja model atau sistem yang dibangun, padahal kinerja model ini sangat berpengaruh terhadap kualitas hasil pemetaan perilaku siswa. Untuk itu, makalah ini berfokus pada peningkatan kinerja pengklasteran perilaku siswa ketika berinteraksi dengan sistem e-Learning. Peningkatan kinerja dilakukan dengan reduksi dimensi pada data siswa dengan Principal Component Analysis (PCA). Selanjutnya, dua teknik inisialisasi titik pusat klaster dieksplorasi untuk mendapatkan hasil yang optimal, yaitu: random dan K-means++. Untuk pengukuran kualitas klaster, makalah ini menggunakan silhouette index. Hasil pengujian menunjukkan bahwa klaster dengan kualitas tertinggi dicapai oleh penerapan PCA dengan tujuh komponen dan banyaknya klaster tiga sampai empat untuk semua teknik inisialisasi titik pusat. Klaster yang berkualitas ini dapat membantu guru dalam memonitor perilaku siswa pada pembelajaran secara daring.
Perancangan Tata Cahaya Buatan dengan Konsep Efisiensi Energi Pencahayaan Kualitatif pada Masjid Baiturrahman, Ciputat, Tangerang Selatan
Authors: Purisari Rahma , Mashudi Muhammad
Published: May 2021

Pengabdian kepada masyarakat yang dilakukan pada Masjid Baiturrahman, Perumahan Villa Bintaro Indah, Jombang, Ciputat, Tangerang Selatan merupakan kegiatan yang bersamaan dengan momentum penting saat masjid sedang melakukan proses perluasan area untuk menambah daya tampung jemaah. Sebagai bagian dari tim renovasi masjid, kami mengambil bagian perancangan tata cahaya buatan untuk memberikan nilai lebih pada masjid serta memberikan pengetahuan kepada masyarakat akan pentingnya penataan cahaya buatan yang efektif dan efisien. Efisiensi energi dan pencahayaan kualitatif merupakan kata kunci dari konsep besar perancangan tata cahaya buatan untuk Masjid Baiturrahman. Dengan focus group discussion (FGD), perancangan pencahayaan buatan, dan sosialisasi kepada warga, pengabdian ini dilakukan agar tata cahaya buatan mampu memberikan rasa aman pada jemaah masjid mulai saat memasuki bangunan hingga memberikan kenyamanan visual saat jemaah melakukan peribadatan. Tidak hanya itu, keindahan arsitektur masjid juga berperan dalam tata cahaya buatan sehingga masyarakat lebih tertarik untuk datang ke masjid. Dengan perancangan hingga penyusunan rencana anggaran biaya yang menjadi luaran yang dihasilkan, tim pengabdi mampu memberikan solusi terhadap kebutuhan desain yang hemat energi, berkualitas, aman dan indah.
Peningkatan Minat Budi Daya Melalui Pelatihan Produksi Pakan Ikan Mandiri dan Akuaponik
Authors: Zubaidah Anis , Sutarjo Ganjar Adhywirawan , Amir Nur Ocvanny , Firmandhaka Ridho
Published: May 2021

Remaja merupakan figur yang sangat berperan dalam proses pembangunan nasional dan mentalitas nasional. Aktivis pemuda di Dusun Jetis, Desa Mulyoagung dipilih sebagai mitra target dalam program kemitraan ini karena dianggap mampu menjembatani pengusul dengan masyarakat. Tujuan kegiatan ini adalah untuk meningkatkan keterampilan remaja di bidang pertanian dan perikanan melalui pelatihan pembuatan pakan ikan mandiri dan budi daya ikan menggunakan sistem akuaponik demi mencapai ketahanan pangan nasional melalui pengembangan potensi lokal. Metode yang digunakan dalam kegiatan ini adalah pelatihan secara langsung tentang teknik pembuatan pakan ikan secara mandiri dengan memanfaatkan bahan baku lokal dan pelatihan budi daya ikan menggunakan sistem akuaponik. Hasil dari kegiatan ini adalah peningkatan ketertarikan remaja terhadap akuaponik sebesar 30% dan peningkatan pemahaman remaja tentang pembuatan pakan ikan sebesar 30%. Kesimpulan dari kegiatan ini adalah bahwa pelatihan dapat meningkatkan ketertarikan dan pemahaman remaja perihal akuaponik dan pembuatan pakan ikan mandiri sehingga di masa mendatang diharapkan akan semakin banyak remaja yang menekuni bidang pertanian dan perikanan.
Pemanfaatan Lubang Resapan Biopori di RW 03 Kelurahan Sambongjaya Kecamatan Mangkubumi Kota Tasikmalaya
Authors: Ramadan Anri Noor Annisa , Hendardi Agi Rivi
Published: May 2021

Drought is one of the disasters that has a major impact on food security. Tasikmalaya is a developing area where it is prone to drought. The communities have the right to obtain and utilize groundwater and also have a role to participate and play an active role in the implementation of groundwater conservation activities. The purpose of this community service is to support groundwater conservation with biopore infiltration holes (LRB) which can help control runoff and reduce organic waste. For this reason, the use of LRB was conducted at RW 03 Winayajaya Housing, Sambongjaya Village, Mangkubumi District, Tasikmalaya City, by making 20 pieces of LRB spread evenly. The enthusiasm of the community from installing LRB is various, some are supportive, and some are not. Three of the 20 houses that were planned to be installed LRB refused to install LRB. Five of the 20 houses have large stone land, making it difficult to install LRBs. Fifteen out of 20 houses were successfully installed LRB with the distribution in all RTs in RW 03. This service concludes that the community's awareness of groundwater conservation is not fully visible from the entire RW 03, this can be seen from the yards available in each house as well as the residents' desire to participate in the use of LRB.
Pendampingan Peternak Dalam Pengelolaan Pakan Sapi Perah Periode Transisi di Kelompok Ploso Kerep, Cangkringan, Sleman Selama Kegiatan Pengabdian kepada Masyarakat
Authors: Suranindyah Yuni , Astuti Andriyani , Widayati Diah Tri , Haryadi Trisakti , Muzayannah Mujtahidah Anggriani Ummul
Published: May 2021

Kegiatan pengabdian masyarakat ini bertujuan untuk membantu peternak meningkatkan pengetahuan dan mempersiapkan pakan sapi perah pada masa transisi, yaitu tiga minggu sebelum dan setelah beranak. Pengabdian masyarakat berlangsung dari bulan April sampai November 2019 di Kelompok Peternak Sapi Perah Ploso Kerep, Umbulharjo, Cangkringan, Sleman. Pelaksanaan kegiatan terdiri dari pengamatan kondisi awal kelompok, penyuluhan, pelatihan pembuatan konsentrat dan mineral blok, serta pemanfaatan produk hasil pelatihan pada sapi perah. Hasil kegiatan menunjukkan peningkatan pengetahuan peternak tentang pakan sapi perah pada periode transisi, ciri-ciri konsentrat yang berkualitas, cara pembuatan konsentrat dan mineral blok masing-masing sebesar 50%; 42,9%; dan 50%. Peternak berhasil membuat konsentrat dan mineral blok. Konsentrat hasil pelatihan memiliki kadar protein kasar 15,77% dan energi dalam bentuk  total digestible nutrient  65,98%. Palatabilitas konsentrat dan mineral blok baik. Sebagai kesimpulan, kegiatan pengabdian masyarakat ini meningkatkan pengetahuan peternak dalam pengelolaan pakan selama periode transisi. Pelatihan memberikan ketrampilan membuat konsentrat dan mineral blok untuk mencegah gangguan kesehatan sapi perah selama periode transisi.
Heart rate variability analysis of students with different motor activity levels
Authors: Emelyanova A. S. , Simonyan L. A. , Stepura E. E.
Published: May 2021

Relevance. Assessment of the functional state of the body is one of the leading tasks of physiology. The article deals with the analysis of the initial vegetative status of students with different levels of motor activity. Materials and Methods. Registration and analysis of the heart rate variability was carried out with the help of a modern complex electrophysiological laboratory CONAN - 4.5. The heart activity of students engaged in physical culture within the educational process was evaluated on the basis of heart rate variability analysis. Results and Discussion. It was revealed that among the entire studied array of students (with the differentiation of the initial vegetative status calculated according to muscle tension index), normotonics are characterized by an optimal ratio between the parasympathetic and sympathetic divisions of the autonomic nervous system. At the same time, the value of the coefficient of physical activity in the studied group was determined at the level of 1.730.1. Conclusion. For vagotonics, the value of the triangular index was 2.50.2 conventional units (CU), which confirms the idea of an increase in the influence on the autonomic nervous system. The value for normotonics is 2.20.1 CU. This group was characterized by the balance between the sympathetic and parasympathetic parts of the autonomic nervous system. In sympathicotonics - 1.90.5 CU, which confirms the idea of increasing the influence of the sympathetic division of the autonomic nervous system. In hypersympathicotonics-1.10.4 CU. To ensure adequate functioning of the cardiovascular system and for normal adaptation to physical exertion in students, it is necessary to form a level of motor activity that quantitatively corresponds to a coefficient of physical activity of at least 1.75.
Association of BTNL2 gene single nucleotide polymorphism with knee osteoarthritis
Authors: Sahoo S. S. , Choudhari O. K. , Bhadra J. , Kabi B. C.
Published: May 2021

Relevance. Osteoarthritis (OA) is one of the chronic debilitating condition mostly seen in the aged population. The etiology behind the OA is multifactorial and the exact cause of the disease often remains uncertain. Apart from the conventional risk factors, there are the speculations of role of genetics playing a pivotal role in the causation of OA. The available literature showed BTNL2 gene polymorphism association with risk of Osteoarthritis whether the same relation is present in north Indian population needs to be elucidated. Objective. To find the association between single nucleotide polymorphism (SNP) (rs10947262) in BTNL2 gene and the susceptibility in knee Osteoarthritis (OA) subjects from northern Indian population. Materials and Methods. Blood samples of 100 patients of knee osteoarthritis and 100 healthy subjects were collected after institutional ethical clearance and participants consent. The BTNL2 gene fragment was amplified using Amplification Refractory Mutation System (ARMS-PCR) with predesigned primers after DNA extraction. The corresponding product bands were identified on the gel electrophoresis for 200 samples and the results were statistically analyzed. Results and Discussion. The genotypic distribution of the SNP followed Hardy-Weinberg Equilibrium. The genotype frequency analysis of the polymorphism was statistically significant (2=7.788; P=0.005) with Odds Ratio of CT+TT/CC: OR=2.303; P=0.008 revealing association of BTNL2 polymorphism with risk of Knee Osteoarthritis. Conclusion. The SNP (rs10947262) in the BTNL2 gene region is associated with risk of knee osteoarthritis.