bluuebunny/crossref_metadata_2025 huggingface dataset:
ЧИСЕЛЬНО-АНАЛІТИЧНИЙ ПІДХІД В АНАЛІЗІ ТЕРМОНАПРУЖЕНОДЕФОРМОВАНОГО СТАНУ МЕТАЛОКОНСТРУКЦІЙ ВАНТАЖОПІДЙОМНИХ КРАНІВ ПРИ ЗОСЕРЕДЖЕНОМУ НАГРІВАННІ
Authors: Chovnіuk Y. V. , Ivanov Ye. О. , Cherednichenko Р. Р. , Kravchuk V. Т. , Ostapushchenko O. Р. , Kravchenko I. М.
Published: January 2023

Запропоновано чисельно-аналітичний підхід у аналізі термонапружено-деформованого стану металоконструкцій вантажопідйомних кранів при їх зосередженому нагріванні. Розв’язано плоску та об’ємну (тривісний напружений стан) задачі. Встановлено основні компоненти деформацій для обох задач. Використано методи математичної фізики та інтегральних перетворень Лапласа, Ханкеля. Аналітичні результати, отримані у роботі, перевірено чисельними розрахунками на ПЕОМ, які встановлюють доволі неоднорідний характер деформування та зміни компонент термонапруженого стану пластини під дією розміщеного на її поверхні зосередженого джерела тепла. Зокрема, для деяких компонент напружень (стискування – розтяг) як по глибині/товщині пластини, так і по радіусі від осі знаходження джерела тепла. Це, по суті, означає, що наявність подібних ефектів з плином часу (навіть у пружній постановці) призводить до появи тріщин, які неминуче наближають процеси старіння та руйнування металоконструкцій вантажопідйомних кранів. Задачу з визначення та аналізу напруженого стану пластини (елементу металоконструкції кранів) при нагріванні зосередженим джерелом тепла розглянуто й розвинуто у пружній постановці методами математичної фізики. При цьому застосовано для розв’язку рівняння теплопровідності у циліндричній системі координат перетворення Лапласа по часу й Ханкеля по радіальній координаті.
Evre 1-3 Kolon Kanserinde Radyolojik Tutulumun Lokalizasyonu ve Sağ Kalıma Etkisi
Authors: ÖZKUL Özlem
Published: January 2023

Amaç: Kolon kanserinin tek bir hastalık olmadığı, sağ ve sol kolon kanserinin epidemiyolojik, klinikopatolojik ve prognostik açıdan farklılıklar gösterdiği çok sayıda çalışma ile desteklenmiştir. Biz de çalışmamızda iki grup arasındaki demografik, klinik, biyokimyasal ve inflamatuar belirteçleri ve genel sağ kalım verilerini karşılaştırarak literatüre katkıda bulunmayı amaçladık.

Gereç ve Yöntemler: Çalışmaya evre 1-3 kolon kanserli rezektabl 77 hasta dâhil edildi (% 58,40 erkek, % 41,60 kadın). Hastalar sağ ve sol kolon kanseri olarak iki gruba ayrıldı. Gruplar arasında yaş, cinsiyet, evre, lenf nodu sayısı, patolojik ve biyokimyasal parametreler ile inflamatuar belirteçler karşılaştırıldı.

Bulgular: Sağ kolon kanserinde total çıkarılan lenf nodu sayısı (p: 0,010) ve mikrosatellit instabilite (MSI) yüksek hasta sayısı (p:0,001) sol kolon kanserine göre anlamlı olarak daha yüksek bulundu. Sol kolon kanserinde ise nötrofil sayısı sağ kolon kanserine göre daha fazlaydı (p: 0,008).

Sonuç: Sağ kolon kanserinde MSI yüksek hasta sayısı sola göre daha fazlaydı. Total çıkarılan lenf nodu sayısı da sağ kolon kanserinde daha yüksekti. Bunun aksine nötrofil sayısı sol kolon kanserinde daha yüksek bulundu. Sağ kalım analizleri için daha uzun takip süresine ihtiyaç vardı.
THE IMPACT OF COVID 19 TOWARD ECONOMIC’S COUNTRY OF SINGAPURA
Authors: Triyawan Andi , Susilo Adib , Afif Mufti , Azzahra Miftah , Prastyaningsih Ika
Published: January 2023

ABSTRACTThis study aims to examine the effect of Covid-19 on the economy in Singapore. The method used in this study is a qualitative method using secondary data in the form of scientific journals and other literature studies. Based on the research results, the authors can conclude that the impact of the corona virus pandemic is not only on the health sector, but also all sectors are feeling the impact. Several countries that joined ASEAN had to experience a recession during the corona virus pandemic. This happens because there is a government policy in every country which requires people not to create crowds and reduce activities outside the home which causes crowds and reduces activities outside the home which causes economic processes to be hampered. This policy was made so that the spread of the corona virus can be overcome and the pandemic ends quickly so that everyone can carry out moral activities as before.Keywords: Singapore, Economic, Covid 19.
THE EFFECT OF LIQUIDITY, MANAGERIAL OWNERSHIP AND LEVERAGE ON THE VALUE OF COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE IN 2016-2020
Authors: Martha Lidya , Rina Kastu
Published: January 2023

ABSTRACTThe purpose of this study is to determine the effect of financial performance, managerial ownership and leverage on firm value. The variables in this study are Liquidity, Managerial Ownership and Leverage. Sampling using purposive sampling technique with certain criteria. Which resulted in a sample of 24 companies listed on the Indonesia Stock Exchange in 2016-2020. The analysis in this study uses panel data regression analysis with the results that Liquidity has a positive and significant effect on firm value and Managerial Ownership has a negative and insignificant effect on firm value, while Leverage has an effect on firm value. The results of the study show that firm value (Tobins'q) is influenced by the Cash Ratio (CR). The results of the second hypothesis, namely the t test (partial test) shows the value of the t-statistic CR 2.712511 with a probability value of 0.0078, then H0 is rejected. The results of the study show that firm value (Tobins'q) is negatively and insignificantly affected by Managerial Ownership. This is evidenced by the results of the t test (partial test) which shows the t-statistic value of KM -1.012049 with a probability value of 0.3138, then H0 is accepted. The results of the study show that the value of the company (Tobins'q) is positively and significantly affected by the Debt to Equity Ratio (DER). This is evidenced by the results of the t test (partial test) which shows the t-statistic value of DER 8.649084 with a probability value of 0.0000, then H0 is rejected.Keywords: likuidity, managerial ownership, leverage, firm value
THE EFFECT OF DIVIDEND POLICY AND COMPANY SIZE ON LEVERAGE (RETAIL COMPANIES LISTED ON THE INDONESIA STOCK EXCHANGE FOR THE 2016-2020 PERIOD)
Authors: Dewi Aminar Sutra , Tiana Elma
Published: January 2023

ABSTRACTThis study aims to examine the effect of dividend policy and firm size on leverage. In companies listed on the Indonesia Stock Exchange. The research population is all financial reports listed on the IDX for the 2016-2020 period. The sample  was selected using the the purposive sampling method with sample criteria being companies listed on the Indonesia Stock Exchange for the 2016-2020 period. Companies that have complaate financial statements for the 2016-2020 period and obtained a sample of 6 companies. The data source is the company’s annual financial statementstaken through the official website of the Indonesia Stock Exchange (www.idx.co.id) testing using panel data regression analysis with the SPSS program. Dividend policy is measured by the dividend payout ratio (DPR), while company size is measured by (SIZE). The results showed that the dividend policy variable hed a negative and insingnificant effect on leverage, while firm size had a negative and insingnificant effect on leverage.Keywords: Leverage; Dividend Policy; Company Size.
COMPENSABLE FACTORS AND COMPARISON ANALYSIS OF UMP AND UMK IN TEACHER COMPENSATION SYSTEM IN JAWA BARAT
Authors: Kartika Lindawati , Rahmawati Siti , Eriza Dea Nur , Ramadhoni Refindi Rizky , Cahyaningtyas Erri Utami
Published: January 2023

ABSTRACTEducation is an aspect that needs to be improved because quality human resources (HR) are born from quality education. Teachers have an important role in improving human resources, and teacher welfare also needs to be considered, one of which is by paying attention to the compensation system for teachers to match the regional minimum wage, compensable factors, and job qualifications. The purpose of this study was to evaluate compensation, especially teacher salaries, in West Java against the UMP and UMK, analyze the compensable factors of the teaching profession based on the Hay System, analyze the qualifications of teacher positions needed based on compensable factors, and compile recommendations for teacher job qualifications based on compensable factors and realization of the needs of the teaching profession in available job vacancies. This research is a quantitative descriptive study with a sample of 150 teachers from six schools in West Java, especially in the areas of Depok, Bandung, Bogor, Pangandaran, and Cirebon. The sources of data are secondary data in the form of surveys on teacher salaries in West Java and literature studies. The data analysis method used the descriptive analysis method and the hay system to determine compensable factors. The results show that the average salary of teachers in West Java is already above the regional minimum wage. There are ten compensable factors needed in determining the teacher compensation system in West Java, and education is the most important aspect with the highest weight. Several job qualifications are in accordance with the compensable factors needed in determining the teacher's compensation system, namely education, experience, communication, conceptual thinking, initiative, freedom of action, and physical effort. However, the compensable factors, complexity, decision-making, and impact are not included in the teacher's job qualifications so that these three factors can be taken into consideration to be used as job qualifications for teachers in the future.Keywords: compensable factors; compensation; Provincial Minimum Wage (UMP) and Minimum Wage of City and Districts (UMK); school
THE EFFECT OF COMPENSATION, LEADERSHIP STYLE AND WORK ENVIRONMENT ON EMPLOYEE SATISFACTION AT PT ARARA ABADI SIAK AREA DISTRICT
Authors: Alhempi Raden Rudi , Sitohang Samuel , Nurmansyah Nurmansyah , Fitrie Souvya
Published: January 2023

ABSTRACTThis study aims to determine how the influence of compensation, leadership style and work environment on employee job satisfaction at PT. Arara Abadi Siak Area District. This research uses quantitative and qualitative data types and sources. The population in this study were all employees at PT. Arara Abadi Siak Area District, totaling 92 people. So the respondents are all employees at PT. Arara Abadi Siak Area District. This sampling technique was carried out using the census research method, namely research that took one population group as a whole sample and used a structured questionnaire as the main data collection tool to obtain specific information.Based on the results of this study indicate that compensation has a positive and significant effect on employee job satisfaction. Leadership style has a positive and significant effect on employee job satisfaction. The work environment has a positive and significant effect on employee job satisfaction. It can be concluded that compensation, leadership style and work environment have a positive and significant effect on employee job satisfaction at PT. Arara Abadi Siak Area District. The implication of the results of this research is that companies should pay attention to the compensation given to employees, the leadership style of the leaders, and a comfortable work environment to increase job satisfaction for employees. Keywords: Compensation, Leadership Style and Work Environment
PENERAPAN METODE SAW DALAM MENENTUKAN KEPUTUSAN SUSPEK POSITIF COVID-19
Authors: Hardianto Roki , Heleni Filtri  , Eddissyah Putra Pane  , Sukma RA Dodi , Sutejo
Published: January 2023

Research on Decision Support Systems that can detect symptoms of positive Covid-19 patients. This study aims to help health workers apply IT in services to Covid-19 patients. Data taken from samples obtained directly from the Riau Provincial Health Office and Pekanbaru City Health Office and the official website of the National Covid-19 Management Agency. In this research, the team consists of the fields of computer science and psychology education in order to fulfill the aspects needed in improving the research results. The assessment aspect of the recommended criteria for Covid-19 tracing patients are 11 questions taken from the Riau Province Covid-19 website. The data is weighted and processed by SAW method Decision Support Systems. The results of the method processing is 3 decision recommendations that are indicated by Covid-19.
The Effect of Anemia in Pregnancy on Postpartum Hemorrhage
Authors: Ariyanti Ririn , Febrianti Selvia , Qasim Muhammad , Jalilah Nurul Hidayatun
Published: January 2023

Eighty percent of maternal deaths are caused by complications during pregnancy and childbirth. Furthermore, twenty-five percent of maternal deaths is affected by postpartum hemorrhage which is estimated 100,000 deaths annually. Indonesia places at the second ranks of the highest maternal deaths country after Laos. The cause of death in Indonesia is 28% by hemorrhage.  The hemorrhage in maternity is due to anemia in pregnancy. It occurs because when the mother gives birth, there will be adequate uterine contractions so that the hemorrhage is inevitable. The objective of the study is to identify the effect of anemia in pregnancy on the incidence of postpartum hemorrhage. The type of research employed is an analytic survey with a retrospective design. The research location was at Juata Tarakan Health Center. The population in this study were all pregnant women who visited the obstetrics and gynecology polyclinic in 2020 which was obtained from secondary data, the patient's medical record book at the Juata Public Health Center with a sample of 271 on June 23 to August 31, 2021. Sampling employed a non-probability sampling technique, total sampling, and the data analysis was administered univariately, and bivariate with chi-square test. The incidence of postpartum hemorrhage in women giving birth in the working area of the Juata Tarakan Health Center is 12.9%. Anemia in pregnancy possesses a significant effect on the risk of postpartum hemorrhage with p value (OR=11,253, 95%CI 5,120-24,732). Meanwhile, parity, age, type of delivery did not possess significant effect on postpartum hemorrhage. Mothers with anemia in pregnancy own a higher risk of postpartum hemorrhage which was 11.253 times greater than mothers who were not anemic in pregnancy. Therefore, it is necessary to perform proper handling of anemia in pregnant women to prevent postpartum hemorrhage.
Determinants of the Support System and Quality of Life for Post-COVID-19 Patients
Authors: Irfan Irfan , Artama Syaputra , Wawomeo Aris
Published: January 2023

The impact of the COVID-19 pandemic has caused a change in habits for post-COVID-19 patients in Indonesia. Support system, both informal and formal, are very important for the successful treatment and recovery of post-COVID-19 patients. The level of knowledge, attitudes and behavior of the patient's family is also significantly influential on the support system, especially for comorbid patients who undergo a longer recovery process. The objective of this study to determine the determinants of the support system and quality of life in post-COVID-19 patients in Ende Regency. The type of research used is analytic observational using a cross sectional study design. The sampling method used cluster random sampling. The sample used proportional allocation technique with a sample of 110 respondents. The results of the study found that the variables that had a significant relationship with the support system and quality of life of post-COVID-19 patients were the respondent's age (p=0.001), quality of life (p=0.001), family attitudes (p=0.001), family behavior (p=0.001), health status (p=0.001) and the patient's comorbid history (p=0.001), while for family knowledge variables (p=0.051) and (p=0.129), and there is no significant relationship for symptoms when suffering from COVID-19 (p=0.078) and (p=0.717). The conclusion is that the support system provided to people with various determinants when facing the situation after the coronavirus pandemic is very important in improving the physical and psychological dimensions. A good support system can reduce various forms of stress, improve coping mechanisms and improve the quality of life of post-COVID-19 patients.
Effectiveness of Kemangi (Ocimum basilicum) Leaf Methanol Extract against Candida albicans Colonies
Authors: Tarsikah  , Widyana Erni Dwi , Wulandari Lisa Purbawaning
Published: January 2023

Candida species, for women are the foremost common cause of parasitic contaminations. Candida species affect contamination in 75% of women and at slightest 6-9% of women involvement repetitive vulvovaginal candidiasis. Candida albicans (CA) accounts for 85-95% of yeast strains separated from the vagina. The treatment which has been administered for candida infections is antifungal drugs such as clotrimazole and fluconazole. When applied topically, synthetic antifungal drugs cause allergic reactions, resistance, and a burning sensation. It is necessary to conduct research on plant-based herbal medicine as an alternative treatment. Kemangi, also recognized as Ocimum Basilicum (OB), is a plant native to Indonesia which has medicinal properties. The objective of this study is to examine how effective OB methanol extract is against CA colonies. The study was performed at Brawijaya University's Microbiology Laboratory in Malang. The experimental laboratories with Posttest Only Control Group Design were employed in this study, with four repetitions of OB concentrations of 15%, 20%, 25%, 30%, and 35% against CA colonies. One-way ANOVA was utilized as the hypothesis test, with a significance level of 0.05. The results demonstrated that OB extract with a concentration of 15% was able to inhibit the growth of CA colonies. In the OB extract with a concentration of 35%, no CA colony growth was revealed. One-way ANOVA test obtained p 0.000 <0.05. Conclusion OB owns adequacy in restraining the development of CA organism with negligible murdering rate at a concentration of 35%.  Research required to be performed to identify the antifungal potential of OB extract in vivo.
The Effect of Service and Satisfaction of Pregnant Women on Antenatal Visits to Midwives
Authors: Tabelak Tirza Vivianri Isabela , Kiah Firda Kalzum , Tadom Nurlaelah Al
Published: January 2023

The utilization of antenatal services for pregnant women can be determined based on the achievements of K1 (first contact) and K4 (4 times contact) during pregnancy with competent and authorized health workers. The World Health Organization asserts that the attitude and performance of health workers are an essential elements of service quality as it affects the understanding and satisfaction of women, partners, and families in seeking ANC, delivery, and postnatal services. The objective of this research is to examine the effect of antenatal care by midwives and the satisfaction of pregnant women on antenatal visits. The type of this research is analytic observational with a cross-sectional design, performed from March - June in Kupang City. The research subjects were 120 pregnant women with a gestational age of 36 weeks. Data collection employed questionnaires and MCH Handbook. The analysis conducted was univariate and bivariate by employing the Chi-square test with Alpha = 0.05. The results of the study on 120 pregnant women demonstrated that most of the pregnant women received good service (98.3%) and most of whom (60%) were satisfied with the services they experienced. Seventy-one people (59.2%) possessed complete visits. The Chi-square test results revealed relationship between service and satisfaction of pregnant women with antenatal visits (p = 0.652, p = 0.324). The majority of pregnant women had thorough consultations, received adequate antenatal care, and were pleased with the services they received. In addition to satisfaction, health services and programs must be performed in accordance with local culture and language in order to be accepted by the community, encompassing a decision-making culture that can influence pregnant women's visits to health facilities. Distance, education, profession, parity, and the husband's support can all have an impact on the mother's adherence to antenatal visits.
Personal Hygiene and Soil Transmitted Helminth Incidence in Elementary School Students Amanuban Barat District, South Central Timor
Authors: Bia Michael Bhadi , Susilawati Ni Made , Rantesalu Agnes , Octrisdey Karol , Bire Winioliski L.O. Rohi
Published: January 2023

Soil-transmitted helminth infection remained a significant public health problem in many developing countries. Elementary school-age children dominated the cases in Indonesia due to poor personal hygiene. South Central Timor had the top three poverty and the highest stunting rates in East Nusa Tenggara. Research to examine the relationship between personal hygiene and the incidence of Soil-Transmitted Helminth infection had never been conducted in South Central Timor. The study population consisted of 279 elementary school students selected from Inpres Nulle Elementary School, Inpres Neonmat Elementary School, and GMIT Nulle Elementary School through the Multistage Random Sampling technique. It was obtained 160 children as the study samples. The study found that 46 children (29.0%) were positive for STH, and 114 (71.0%) were negative for STH. Furthermore, 30 (65.2%) were positive for hookworm, 14 (30.4%) were positive for Ascaris lumbricoides, and 2 (4.4%) children had mixed infections. Multiple Logistic Regression Tests showed a significant effect of washing hands with soap after defecating with p = 0.031 and OR = 7.158. Thus, if a child did not wash his hands with soap after defecating, he had a risk of STH infection by 7.158 times. Furthermore, the effect of eating habits obtained a p = 0.038 and an OR value = 0.133 with the possibility of eating habits that did not protect against STH infection. In addition, the effect of dirty nails obtained a p=0.064 and an OR=5.264, which indicated the risk of contracting STH by 5.264 times. The effect of snacking habit obtained a p = 0.005 and an OR=0.121. It can be concluded that the incidence of STH was simultaneously influenced by the habit of defecating on the ground, washing hands without soap after defecation, eating raw food, having dirty nails, and having poor snacking habits.
The Effect of Promotion with Flipchart Media on Toothbrush Knowledge Levels of Maintaining Dental and Oral Health in Children
Authors: Haryani Wiworo , Sulastri Siti
Published: January 2023

Elementary school children possess a high risk of dental caries. Based on the Basic Health Research 2018 data, the percentage of dental and oral health problems in the 10–14 year age group is 41.4%. Efforts to reduce dental and oral health problems in children are conducted by health promotion which can be implemented with flipchart media. Flipchart media can be an alternative; hence, elementary school children are able to better understand the importance of knowledge on maintaining oral health. The objective of this study is to determine the effect of promotion with flipcharts on the level of toothbrush knowledge of maintaining oral and dental health in children. This type of research was a quasi-experimental with a pretest-posttest design with control group. The research location is at SD Muhammadiyah Banyuraden, Gamping, Sleman, Yogyakarta. The research sample is 80 children aged 8 to 12 years. The sampling technique employed purposive sampling. The influence variable is promotion with flipchart, and the affected variable is the level of knowledge in maintaining oral health. The treatment and control groups performed pretest and posttest to determine the level of knowledge of dental and oral care in elementary school children. The results of the Wilcoxon Signed Rank Test analysis demonstrated that before and after promotion, the two groups owned a significant difference in toothbrush knowledge level (p=0.00). The results of the Mann Whitney test analysis display that the mean rank of children's toothbrush knowledge level using flipchart media is greater than PowerPoint media, which is 58.03> 20.98 so that it can be stated that the use of flipchart media is more effective than PowerPoint media. The conclusion of the study is that promotion by employing flipchart media can increase the level of toothbrush knowledge on maintaining oral and dental health in children.
Relevansi Penguasaan Nahwu dan Sharf dengan Kemampuan Membaca Teks-Teks Keagamaan Teungku Dayah Aceh
Authors: Muhammady Aan , Jamal Danial
Published: January 2023

This research is important to discuss based on the phenomenon of teungku dayah errors in reading religious texts in Aceh. This study aims to determine the relevance between mastery of Nahwu and Sharf with the ability to read religious texts owned by tengku dayah and examine the causal factors from the perspective of Nahwu and Sharf. Dayah Darussalam, Labuhan Haji, South Aceh District, was chosen as the research location because it is one of the oldest in Aceh. This study uses field research methods with a qualitative approach. The data were obtained from in-depth interviews, observation, and documentation of the curriculum applied at the dayah. All the data obtained were analyzed descriptively and qualitatively. The study results show that learning Nahwu and Sharf in the Acehnese dayah is generally carried out in two types of learning programs: regular and extracurricular. Teungku Dayah's ability to read religious texts in Aceh could be much higher. This is indicated by the many mistakes they made when reading religious texts, both in terms of Nahwu and Sharf. Among the contributing factors is the absence of a dayah curriculum related to active Arabic practice and tahsin al-Qur'an.
Investigation of the biological activity of the water-soluble C60/poly-N-vinylpyrrolidone complex
Authors: Loginova N. Yu. , Chesovskikh Yu. S. , Borodulin V. B.
Published: January 2023

Objectives. The study aimed to investigate the biological activity of the C60/poly-N-vinylpyrrolidone (C60/PVP) complex representing a water-soluble fullerene derivative. In vitro and in vivo techniques were used to analyze the effect of the C60/PVP complex on the activity of lactate dehydrogenase (LDH) and evaluate changes in the biochemical parameters of blood serum when per os administered to mice.

Methods. In order to determine the activity of a commercial LDH preparation and study the kinetics of this process, the standard Warburg photometric method was used. To assess the effect of polyvinylpyrrolidone (PVP) and the C60/PVP complex on some biochemical parameters in vivo, a study was conducted on two-month-old male white mongrel mice weighing 20 ± 3 g. Determination of biochemical parameters of blood serum was carried out using a semi-automatic biochemical analyzer according to standard methods.

Results. The effect of the C60/PVP complex on LDH activity was studied along with changes in the biochemical parameters of mouse blood serum characterizing carbohydrate metabolism. As well as increasing the glucose and pyruvic acid content, the C60/PVP complex was found to reduce lactate content and LDH activity in blood serum along with in vitro LDH activity according to the type of mixed inhibition.

Conclusions. The C60/PVP complex and PVP were shown to exhibit biological activity in vitro and in vivo. The C60/PVP complex, representing a mixed-type LDH inhibitor, was shown to inhibit LDH activity, as well as contributing to a decrease in lactate concentration and an increase in the concentration of pyruvic acid and glucose in blood serum when administered per os to mice. The inhibitory effect of PVP on LDH activity was revealed in both in vivo and in vitro investigations. In vivo, PVP contributes to a decrease in the concentration of lactate in the blood. The less pronounced effect of the C60/PVP complex as compared to PVP alone may be due to the fact that C60 molecules are “hidden” in cavities formed in PVP molecules.
Physicochemical fundamentals of processing solutions of thermoplastic poly(ether urethane)s to obtain fibrous-porous polymer composite materials
Authors: Kovalenko G. M. , Bokova E. S. , Evsyukova N. V.
Published: January 2023

Objectives. To study the structure and properties of solutions of thermoplastic poly(ether urethane)s (PEUs) to inform their potential use in the production of fibrous-porous polymer composite materials with a given structure and set of performance properties depending on the field of practical application.

Methods. The composition of PEUs was studied by attenuated total reflection infrared (ATR-IR) spectroscopy using a program for correcting the spectra on an IR Fourier spectrophotometer, as well by differential scanning calorimetry (DSC) using a heat flow calorimeter. The viscosity of PEU solutions was determined on a rotational viscometer.

Results. The chemical composition of PEUs and the nature of the formation of hydrogen bonds were studied. An analysis of the spectra demonstrates the almost complete identity of the PEUs synthesized from the same 4,4'-diphenylmethane diisocyanate. In the studied PEUs of the Vitur and Desmopan® brands, as well as Sanpren, pronounced absorption bands characteristic of urethane groups involved in the formation of hydrogen bonds are visible in the region from 1702 to 1730 cm−1. The temperature transitions and thermal stability of the investigated PEUs were determined by DSC. The influence of the ratio of rigid and flexible blocks, as well as the nature of hydrogen bonds on the melting temperatures of polymers, was shown. Analysis of the DSC curves demonstrated all the studied PEUs to have high melting points ranging from 159 to 215°C. From the studied temperature dependences of the structural viscosity of thermoplastic PEUs solutions, all solutions were established to have a minimum viscosity anomaly; the value of the logarithm of viscosity depends on the chemical composition and structure of the initial PEUs. It is shown that the viscosity anomaly of PEU solutions can be reduced with increasing temperature.

Conclusions. A comparison of the chemical composition, structure, thermal and rheological characteristics of thermoplastic PEUs with PEU solutions widely used for the production of fibrous-porous materials and coatings of Sanpren LQ-E-6 and Vitur R 0112 grades demonstrates their practicability as production materials and coatings having a predetermined structure and a set of properties depending on the requirements and operating conditions of finished products.
SARS-CoV-2 coming of age (and with it both previous successes and new problems)
Authors: Actis Giovanni C , Ribaldone Davide G
Published: January 2023

SARS-CoV-2 and its syndromic tail, (soon become popular under the label -19), have now happily come of age after a glorious rush (though frankly destructive for us) around the world, after pulling out of the stinky shuffle of a poorly identified Chinese market. It seems that those capital events took place sometime in late 2019. Now early in January 2023, i.e., three years later, and well over 6 million victims passed away, one of the few pieces of evidence we have, is revealing that the ground can still be trembling under our feet, if we realize the following. According to a few scientists who might have scrutinized the problem from a little closer point, the unusually high replicating rhythm of the SARS-CoV-2 is laying down the condition for the chance budding out of the “finally perfect” variant, endowed with a 360 degrees field of drug resistance. If anyone would still be hungry for more appalling evidence against our race, it just remains to be stressed that some Corona clones have been characterized to be fully efficient in mimicking the spontaneous viral disease, including the boosted inclination to trigger deadly mega-thrombi in large lung and brain vessels. Thus, in a word: our road to an acceptably safe harbor abreast of deadly zoonoses seems to be still long and rocky. In such untold and dire straits, one can only be reminded to appreciate and re-consider previously forgotten “simple” life values, reappraising the tiny grains of ease that we might stumble in, and save them all, perhaps for even harder challenges. Needless to say, the obscure path ahead should always be illuminated (as much as we can) with the only light of science.
Comparative study of tolerance of cowpea cultivars to saline stress
Authors: Romanoski Vanessa , de Moura Souza Filho Paulo Roberto , Badaró Pimentel Adérico Júnior
Published: January 2023

O feijão-caupi [Vigna unguiculata (L.) Walp] é amplamente cultivado no Nordeste brasileiro e destaca-se pela sua importância econômica e social. Parte da área de cultivo apresenta algum grau de estresse salino, o que afeta o desempenho da cultura. Os efeitos da salinidade podem ser mitigados com o desenvolvimento de cultivares tolerantes. Objetivou-se com este trabalho avaliar o comportamento de cultivares de feijão-caupi em diferentes níveis de estresse salino, nas fases de germinação e emergência da cultura. Dois ensaios avaliando as fases de germinação e emergência foram conduzidos, sob condições controladas, em esquema fatorial com 11 cultivares em soluções de NaCl com concentração variando de 0 a 120 mM. Houve significativa diferença na resposta das cultivares em função do nível de salinidade aplicado. As cultivares BRS Itaim, BRS Novaera, BRS Pajeu, BRS Tumucumaque, Sempre Verde e Pingo-de-ouro demonstram melhor desempenho nas fases de germinação ou emergência em condições de estresse salino, sendo estas mais promissoras para o estabelecimento inicial da cultura, na presença de salinidade.
Should research be integrated in the trainig of the surgeon?
Authors: Rodríguez Montes J.A.
Published: January 2023

Surgery is an action oriented medical specialty. Training excellent surgeons requires explicit and outcome predictable educational processes, so improve educational programmes in surgery are likely to represent better health for society. Given the extraordinary scientific-technical progress achieved, numerous surgical authorities suggest that the remarkable development of surgical research it needs its integrated in the classical teaching of Surgery. Specific, it is about determining if during the period of residence the postgraduate must investigate and if this activity is assumed and undertaken, know what to research, what kind of research you should do and for how long.
How to integrate research training in the context of surgical learning is still a controversial topic; however, many countries promote integration of research training during the residence period, although they are important differences of opinion in the right paper and the structure of research in surgical training.
For its objetives, philosophy that sustains it and positive effects on personal scientific education, it is concluded that it is convenient and necessary to incorporate surgical research in the training curriculum of surgeons.
Cognitive performance in individuals with a first psychotic episode according to age at onset of psychotic symptoms and premorbid intelligence quotient
Authors: Molina-García M. , Arango C.
Published: January 2023

Introduction: There is great variability in the cognitive performance profile, clinical presentation, course of symptoms, and subsequent functioning in individuals with a first episode of psychosis (FEP). Premorbid IQ (pIQ) and age of onset are two important prognostic factors relevant to clinical practice and broadly explored in psychosis research (1,2) that could help to explain heterogeneity in cognitive performance after FEP.
Methods: The present prospective longitudinal (two-year) observational study examines the neurocognitive performance profiles of 255 individuals with FEP and 326 controls. Using ANOVA, we compared four FEP subgroups according to the following criteria: age of onset before or after 18 years old, and pIQ below or above 85. We examined cognitive changes in the subgroups with pair-wise comparisons, two-way mixed ANOVA, and repeated measures ANOVA.
General objective: to characterize the neuropsychological profiles of the four subsets of individuals with a FEP defined by age of onset of psychosis (<18 or ≥ 18) and p-IQ (low or average) and to compare these subgroups’ neuropsychological performance, at baseline and at two-year follow-up.
Results: The subgroups with early-onset and adult-onset low pIQ showed cognitive deficits more than 1 SD below the control mean and significantly different from early- and adult-onset average pIQ subsets at both the baseline evaluation and the two-year follow-up. These deficits were in attention and processing speed (p <0.001), working memory (p <0.001), verbal learning and memory (p <0.001), executive function (p <0.001), and global cognition (p <0.001). Cognitive performance in the early-onset average pIQ subgroup did not differ from that of the adults with average pIQ, and the former subgroup showed improved scores over time.
Discussion: Our results suggest that the presentation of psychotic symptoms in patients with a lower than average pIQ is associated with a globally impaired profile. Estimating pIQ in the early stages of the disorder can help identify individuals who require early personalized neurocognitive intervention.
The well-being of the gynecological surgeon improves with the robot-assisted surgery
Authors: Coronado Martín P.J. , Gracia M. , Ramirez Mena M. , Bellón del Amo M. , García-Santos J. , Fasero Laiz M.
Published: January 2023

Objectives: To demonstrate that robotic surgery benefits the ergonomics of the surgeon and his assistant compared to conventional laparoscopy through an ergonomics and satisfaction survey.
Methods: Cross-sectional observational study of consecutive gynecological surgeries, which involve at least one hysterectomy, performed with robotic assistance (Da Vinci System) or with conventional laparoscopy at the Hospital Clínico San Carlos during the years 2008 and 2021. A questionnaire was administered to the main surgeon and the assistant in order to know their subjective impressions regarding comfort, ergonomics, and satisfaction with the da Vinci robotic system or laparoscopy. The responses were collected using a visual analog scale that scored from 1 (worst condition) to 10 (best condition). The comparison of the variables was made using the Student’s t test or the Mann-Whitney U test for independent samples. Significance was considered with a value of p<0.05.
Results: A complete response to the questionnaire was obtained in 384 out of 451 cases (242 robotic and 142 laparoscopic). With equal difficulty perceived by the main surgeon, robotic surgery was rated as less tiring, more comfortable, and with less limb and back pain than laparoscopic surgery (p<0.001). The surgeon considered that the 3D vision, the articulation of the instrument and the ergonomics offered by robotics were relevant, as well as that robotics, was an advance over laparoscopy and open surgery regardless of the level of experience or the complexity of the procedure. No differences were found between robotic and laparoscopic surgery in the assistant assessment, except when the assistant was a senior surgeon, who found a better degree of comfort and less limb pain in the robotic approach (p<0.05).
Conclusions: Robotic surgery has clear advantages for the surgeon, since it increases the degree of satisfaction and comfort, reducing fatigue and discomfort due to the position compared to conventional laparoscopy regardless surgeon’s experience and complexity of the intervention.
PENGARUH PENGETAHUAN DAN PEMAHAMAN PERPAJAKAN, KESADARAN PAJAK, DAN SANKSI PAJAK TERHADAP KEPATUHAN WAJIB PAJAK ORANG PRIBADI DI KPP PRATAMA KOTA YOGYAKARTA
Authors: Sulastiningsih Sulastiningsih , Winata Aldi , Riauwanto Selamat
Published: January 2023

Riset ini tujuannya menganalisis kepatuhan wajib pajak orang pribdi di “kota Yogyakarta” dan faktor faktor yang mempengaruhinya, mengguakan datanya primer, dikumpulkan dengan kuesioner. Teknik penentuan sampelnya non probability sampling yaitu accidental sampling, jumlah responden empat puluh wajib pajaki, selanjutnya diolah menggunakan program perangkat lunak SPSS. Hasilnya riset menunjukan variabel pengetahun dan pemahaman perpajakan, kesadran pajak, dan sanksi pajak parsial dan simultan mempengaruhi signifikan variabel kepatuhaan wajib pajak di kota Yogyakarta. Hal ini memberikan implikasi pada KPP kota Yogyakarta agar meningkatkan pengetahuan dan pemahaman perpajakan masyarakat serta menigkatkan kesadaran pajak melalui literasi dan sosialisasi peraturan perpajakan, sanksi perpajakn terbaru, memberikan perhatian pada wajib pajak usia non produktif untuk dibimbing dalam melaksanakan kewajban perpajakan secara online, sehingga meningkatkan kepatuhaan wajib pajak.
Studi Komparasi Kinerja Kasir dan Juru Buku KSP/KSPPS di Daerah Istimewa Yogyakarta Sebelum dan Sesudah Lulus Diklat Kompetensi
Authors: Suhartono  , Tjahjono Achmad , Purwanto Wahyu
Published: January 2023

The objectives of this study are: (1) comparing the performance of the KSP/KSPPS cashier before and after passing the competency test, so that it is known whether after passing the competency test the performance increases. (2) Comparing the performance of the KSP/KSPPS bookman before and after passing the competency test, so that it is known whether after passing the performance competency test increased.The research to be conducted is a comparative quantitative research. In this study a comparison of the performance of the cashier and KSP and KSPPS bookkeepers before and after graduating from the Competency Test. Data collected includes: (1) cashier performance data before passing the competency test, (2) cashier performance data after passing the Competency Test; (3) Book -up performance data before passing the competency test (4) Book -up performance data after graduating from the Competency Test. The data collection methods carried out are documentation and questionnaires. Documents in the form of reports of RAT 2 years before passing the Competency Test and 2 years after the Competency Test. The distribution of the questionnaire was carried out on the cashier and the bookman who was selected as a sample. Sampling by purposive random sampling with the number of samples in accordance with the formula Rao (1996).The results showed that after being assessed with 7 (seven) performance indicators namely: making work plans, accuracy at work, achieving work targets, delivery of work reports, work discipline, work cooperation, and service performance, both cashiers and bookkeepers are proven to have increased Performance after they follow the training and competency test compared to before.The limitation of this research is that in digging data only using Google Forms that are distributed to several social media groups and also individual KSP/KSPPS management and also interviews with online samples so that the samples cannot be many. While the recommendations that can be given for future research are so that more research samples can be added, and the research area can be expanded.
PENGARUH DISCIPLINE DAN JOB SATISFACTION TERHADAP EMPLOYEE PERFORMANCE PADA DINAS LINGKUNGAN HIDUP DAN KEHUTANAN YOGYAKARTA DENGAN WORK FROM HOME SEBAGAI VARIABEL MODERATING PADA MUSIM PANDEMI
Authors: Haslinda Nurul , Zuraida Lukia
Published: January 2023

The research aims to analyze the impact of discipline and job satisfaction on the performance of the Yogyakarta Environment and Forestry Service employees with work from home as a moderating variable during the pandemic season. The population in this researchis all of Dinas Lingkungan Hidup dan Kehutanan Yogyakarta’s employee which consists by civil servants and auxiliary workers. A simple random sampling technique was applied to the sampling of this research. The number of samples used in this research uses the Slovin formula with an error rate of 1%. The number of samples was 121. The research data processing was carried out using Smart PLS4.0 software. Data analysis using SEM model. Research proves that (1) Discipline has a significant impact on the performance of employees of the Yogyakarta Environment and Forestry Service. (2) Job satisfaction has a significant impact on the performance of employees of the Yogyakarta Environment and Forestry Service. (3) WFH has a significant impact on the performance of the Yogyakarta Environment and Forestry Service employees during the pandemic season. (4) Discipline has a unidirectional but not significant impact on the performance of the Yogyakarta Environment and Forestry Service employees with WFH as moderator during the pandemic season. (5) Job satisfaction has no significant impact on the performance of the Yogyakarta Environment and Forestry Service employees with WFH as a moderator during the pandemic season.
THE FUTURE OF WORK : TOLERANSI RISIKO, KEADILAN ORGANISASI, DAN KEBEBASAN DALAM BEKERJA TERHADAP MINAT BEKERJA MAHASISWA UNIVERSITAS SARJANAWIYATA TAMANSISWA
Authors: Rosiana Auliya , Yulianto Eko
Published: January 2023

Technological sophistication is the essential thing needed to develop all aspects of industrial revolution 4.0. It emphasizes expanding job prospects and maximizing responsibility for completing work with a different approach. This revolution is related to the young millennial generation and Z generation in choosing the field of work. This generation prioritizes flexibility and simplicity and works effectively and efficiently. Different from the previous generation, they expected that everything should be organized with various bureaucratic and administrative policies. Currently, Z generation is primarily students in Higher Education. The actual situation shows that most students have no plans to decide the type of work they want to. They doubt about their passion and potential. Therefore, this study aimed to map the students' work plans so that supervisors can direct their interest in concentration according to their potential. This study identified and proved the suitable work system for Z generation. In addition, this research aimed to find out whether risk tolerance, justice, and freedom at work affect the student’s interest in working in the future. The population was students of the Management Program, Faculty of Economics, Universitas Sarjanawiyata Tamansiswa. The method used multiple regression analysis methods to test the relationship pattern that has a theoretical basis. The result of this study showed that risk tolerance and justice positively affect the interest to work in the future. Nevertheless, freedom of work does not affect interest to work in the future.