bluuebunny/crossref_metadata_2025 huggingface dataset:
Estudio sobre las condiciones de trabajo en el oficio del mototaxismo dentro de la economía informal en las ciudades de Bogotá sector Suba y Engativá y Bucaramanga, sector Plaza Guarín, Parque San Pío
Authors: Sanabria Báez Nina Alejandra , Heredia Tatiana
Published: August 2023

La economía informal en Colombia ha derivado en varias actividades que promueven la economía en los diversos sectores laborales. Por ello el estudio de esta investigación radica fundamentalmente en el mototaxismo dado que es un referente prevalente como medio de trabajo informal en gran parte de la población colombiana. Este oficio determina unas condiciones de trabajo que deben analizarse dado el contexto socioeconómico, así como aspectos de seguridad y salud en el trabajo que afectan la integridad física y mental de los mototaxistas y de los usuarios de este servicio. Por lo que se hace relevante identificar las condiciones y las características propias de este trabajo informal, así mismo considerar estrategias de intervención que permitan el amparo de la salud laboral de estos trabajadores y su inserción en la formalización del trabajo en las zonas de estudio en las ciudades de Bogotá y Bucaramanga.
Toña
Authors: Enríquez Sepúlveda Dora Nohemy
Published: August 2023

Este libro se pregunta cómo se registró el cuerpo en uno de los medios de comunicación más importantes de la primera mitad del siglo XX: la Revista Cromos y su sección Sea siempre bella, particularmente en la década de los años cuarenta. Por eso, en sus páginas se persiguen las tensiones y los regímenes semióticos con los que empezamos a experimentar el lenguaje, las cosas, la realidad; al otro, al cuerpo, articularmente como se evidencia en la revista. Disuelta en la materialidad de las imágenes, la realización de sus textos, la diagramación de los bloques de información en la revista, se pueden leer las claves de acceso a eso otro que no siempre se lograr nombrar y que no siempre está dado a la interpretación inmediata: la forma como este medio de comunicación impulsó un discurso de ingreso del cuerpo a la modernidad. Si a mitad del siglo anterior se necesitaba un país diferente, más moderno, era de esperarse que la concepción, configuración y confección del cuerpo, sus formas de vestir y su gestualidad cambiaran. Entendemos que dicho registro en la revista no es otra cosa que el “sentido” con el que se representa o se cuenta algo. Así, lo que se quiere resaltar es cómo en esos registros se halla una manera no solo de enunciar un objeto, sino las irrupciones que puede generar ese registro en el campo social, estético narrativo y simbólico. Por tanto, el libro aporta en la discusión sobre lo imaginario colectivo en términos de su inscripción en lo real. Amparados en los aportes de la filosofía, la antropología y la semiótica, este trabajo ayuda a destejer esas tramas de sentido que se evidencian en la revista, pero que, sabemos, se constituyen como tramas históricas que atravesaron las vidas de las personas de tal época. Desde ahí aporta claves para preguntarse cuáles son los escenarios en los cuales hoy se definen, se negocian y se intercambian los meridianos desde los cuales imaginar y realizar el cuerpo.
4+3+1+2 en diez pasos
Authors: Castro-Gómez Neil , Fajardo-Barbosa Naomi Leandra
Published: August 2023

4+3+1+2 en diez pasos
El hurón pierde sus pasteles
Authors: Alvarado-Moya Juan Diego , Gómez-Salazar Laura Valentina
Published: August 2023

Hurón siempre había sido muy feliz, todo era perfecto, cocinando y compartiendo con sus amables vecinos, hasta que todo cambió de repente, hay un ladrón de pasteles suelto en el bosque, pero Hurón no se quedará de brazos cruzados, llegará hasta lo más profundo de este misterioso suceso.
MERGING CONICAL LIQUID SHEETS FROM COAXIAL PRESSURE-SWIRL INJECTORS
Authors: Rastegarkoutenaei Ali , Ghassemi Hojat
Published: August 2023

The conditions for merging two liquid sheets in a coaxial pressure-swirl external mixing injector were assessed experimentally and numerically. Fast imaging was employed based on the backlighting technique to experimentally investigate the behavior of the exit liquid sheet. The simulation was also carried out using a volume of fluid model considering two-dimensional axisymmetric swirl
conditions. Performance characteristics including discharge coefficient, sheet angle, and sheet pattern at different injection pressures were assessed experimentally and by simulation for separate and simultaneous spraying conditions. To study the merging condition, the gas phase pressure field just downstream of the injector exit was numerically investigated separate and simultaneous results
show that the lowest gas pressure occurs in the region inside the liquid cone produced. The larger the
diameter of the injector outlet, the greater the volume of the hollow cone and the smaller the amount
of this vacuum. When the internal and external injectors worked simultaneously, three areas were
distinguished: the inner space of the internal injector, the space between the two liquid sheets, and the outer space of the external injector. The largest pressure gradients in the gas pressure occurred in the space between the two liquid sheets. By increasing the injection pressure of the external injector, the static pressure between the two sheets decreased and reached the pressure required to merge the
two sheets, thus, the two liquid sheets can merge.
Effect of structure and phase composition on the physical and mechanical properties of hot extruded titanium alloy Ti–3Al–2.5V tubes
Authors: Illarionov A. G. , Vodolazskiy F. V. , Illarionova S. M. , Kosmatskiy Ya. I. , Shirinkina N. A. , Shabanov M. A.
Published: August 2023

This study investigates the impact the hot extrusion process variables on the physical and mechanical properties of Ti–3Al–V alloy The research examines four tube segments extracted from various hot-extruded tubes of Ti–3Al–2.5V alloy, with an outer diameter (OD) of 90 mm and a wall thickness of 20 mm. The manufacturing process involves expanding sleeves with a horizontal hydraulic press to achieve an OD of 195 mm, followed by heating to 850–865 °C prior to extrusion. The tube segments are labeled as 1, 2, 3, and 4, corresponding to their order of production. Our findings demonstrate that an increase in the number of extrusions in the α + β area from tube 1 to tube 4 leads to a reduction in the primary α-phase volume fraction and an increase in the β-transformed structure volume fraction. These changes are attributed to the higher final extrusion temperature resulting from more intense deformation heating during hot tooling (die and mandrel) processes. Additionally, elevating the final extrusion temperature from tube 1 to tube 4 leads to a notable decrease in the residual β-solid solution volume fraction and a reduction in the “sharpness” of the α-phase tangent-oriented texture. The alterations in the structural and phase state of the alloy from tube 1 to tube 4 are found to influence the contact modulus of elasticity and microhardness. These identified relationships can be utilized to optimize the process variables for the extrusion of multiple Ti–3Al–2.5V alloy tubes.
Evaluación de los modelos digitales de terreno y geopotenciales en el Ecuador
Authors: Portilla Oscar , Leiva César , Luna Marco , Sinde Izar
Published: August 2023

Los trabajos de ingeniería utilizan los modelos digitales de elevación para realizar cálculos y modelar fenómenos, conocer su precisión permite determinar la escala de uso y la calidad de los subproductos que se obtienen. Existen modelos libres que son muy utilizados en la práctica, como es el caso de los modelos digitales del terreno (MDTs): Shuttle Radar Topography Mission (SRTM), ASTER Global Digital Elevation Map (ASTER GDEM), ALOS PALSAR, el MDT generado por el Instituto Geográfico Militar del Ecuador (IGM) y los modelos geopotenciales (MGs): EGM96, EGM08 y el MG creado por el IGM. Se evaluaron los modelos utilizando los puntos de nivelación geométrica y altura elipsoidal levantados por el IGM. Se determinaron los valores atípicos, se compararon las alturas entre los MDTs para conocer su diferencia, se calculó el error cuadrático medio (RMSE) y se definió la precisión y escala a la que se pueden emplear los diferentes modelos. Se concluyó que los MDTs SRTM 30, ALOS PALSAR e IGM pueden utilizarse para trabajos que requieran una precisión inferior a los 10 metros. El MG EGM08 junto con alturas elipsoidales de alta precisión podrían generar modelos de elevación que alcancen una precisión de 1.25 metros, mientras que los MGs EGM96 e IGM pueden generar modelos que alcancen una precisión de 2.5 metros. Las alturas elipsoidales de los MDTs SRTM 30, ALOS PALSAR e IGM obtenidos con los MGs EGM 96 y EGM 08 se pueden utilizar si se requiere una precisión inferior a los 10 metros.
First Report of Endophytic Bacteria Isolated from Senecio glaucus L., Egypt
Authors: Sultan Mohammed , Elsayed Ashraf , El-Amier Yasser Ahmed
Published: August 2023

Microorganisms are naturally associated with plants in several ways. The study was conducted to isolate bacteria endophytes from the internal cells of roots, stems, leaves, and capitula of Senecio glaucus collected from 2 diverse (coastal and desert) habitats in Egypt. A total of 10 endophytic bacteria were obtained from the isolation; the highest diversity of bacterial endophytes was observed in desert samples roots and leaves. The isolates were recognized based on morphology, biochemical and 16S rRNA sequence genes. All isolates indicated the ability for enzyme production as amylase, cellulase, lipase, catalase, and protease in their biochemical descriptions; analyses also gave a significant indication of their potential to produce plant growth hormones, as their ability to dissolve Phosphate. In the world and Egypt, we are the first to report bacterial endophytes isolated from Senecio glaucus. This study could aid in determining the role of endophytic bacteria in severe habitats, as well as their potential applications in medicine, bioremediation, agriculture, and industry.
Effect of short duration plyometric training on vertical jump and sprint speed in volleyball players
Authors: Chaturvedi Rekha , Muwal Monika , Joshi Shabnam , Bagri Meenakshi , Rani Vandana
Published: August 2023

INTRODUCTION: Volleyball is a fast-paced sport that involves vertical and horizontal projections of the ball by the player. The use of plyometric training is a popular method to enhance performance in players. OBJECTIVE: The present study aims to see the effect of short-duration plyometric training on vertical jump and sprint speed in volleyball players. METHOD: This study is a parallel group randomized controlled trial. Thirty-nine participants were screened for participation in the study, of which 30 were selected following the inclusion and exclusion criteria for the study. The inclusion criteria for the study comprised of volleyball players of age group 18 to 24 years, both males and females, with playing experience of at least one year, and willing to participate. The exclusion criteria for the study included players with a history of injury in the last six months, any reported neurological or musculoskeletal disorder, and any psychological condition. The selected participants were randomly allocated to Group A and Group B using the lottery method. Group A was given plyometric training for three days a week and Group B was asked to continue their regular routine exercises and playing schedule. The total duration of the intervention was four weeks. The outcome measure for the study was sprint speed and vertical jump height. Sprint speed was measured by the 20 m sprint test, and the vertical jump height was measured by the Sargent jump test. The assessment was done at the baseline and at the end of four weeks. An unpaired t-test was used to analyze between-group differences, and paired t-test was used to analyze the within-group differences in the outcome variables. The significance level was set as p<0.05. RESULTS: The result of the study showed a significant improvement in vertical jump height (MD= -7.133, 95% CI-12.657, -1.609) and no significant improvement in sprint speed when between-group comparisons were made (MD=0.084, 95%CI -0.177, -.345) with an effect size of 0.75 for vertical jump height. The within-group comparison was found significant only for vertical jump height in Group A, and there was no significant improvement was found in sprint speed for both Group A and B. FINAL CONSIDERATIONS: The short-duration plyometric training is effective in improving the vertical jump height and not the sprint speed in volleyball players. The specificity of plyometric training is important for optimal improvement in sports performance.
[RETRACTED] Can light be used to treat obesity and diabetes? v4
Authors: Daoudi Rédoane
Published: August 2023

[RETRACTED]

This document is highly theoretical lab method paper. It may be used to perform thermogenesis from several cells in a living organism instead of only brown adipocytes. We perform thermogenesis from white adipocytes. The purpose is to uptake the blood glucose and lipids to produce heat and subsequent weight loss and to diminish blood glucose levels for people who suffering from diabetes and obesity. In fact thermogenesis consumes energy (i.e blood glucose and blood lipids). So we now describe a novel and original lab method based on thermogenin (called thermogenin-like system, UCP1-like system or TLS) that is involved in heat production and glucose/lipids capture by white adipocytes.
Group Differences in Individual and Organizational Capabilities and Operational Performance in Implementing DX: Focusing on Nepalese SMEs
Authors:   People&Global Business Association, Marasini Durga Prasad , Lee DonHee , Joung HyunSuk
Published: August 2023

Purpose: The purpose of this study is to examine differences between excellent and following groups based on individual and organizational capabilities and operational performance, focusing on Nepalese SMEs. Design/methodology/approach: The proposed research model and a set of hypotheses were developed and tested using T-test analysis based on data collected from 154 (70.32%) responses in Nepal. Findings: From the T-test results showed a significant mean difference between excellent and following groups on change acceptance and technology acquisition on individual capabilities. In addition, the T-test results showed a significant mean difference between excellent and following groups on organizational infrastructure and organizational support, and operational performance showed the or a difference between the two groups. Research limitations/implications: The limitations of this study are the sample size and target respondents. The results of this study suggested practical insights for DX implementation for SMEs. Originality/value: The value of this study will be used as basic guidelines not only for companies that want to implement DX effectively but also for organizations that consider implementing DX.
How Does Corporate Social Responsibility Affect Innovative Work Behaviour?
Authors:   People&Global Business Association, Viet Quoc Cao
Published: August 2023

Purpose: This research examines the effect of perceived corporate social responsibility on the employee-company relationship (organisational trust, organisational identification) and employees' future well-being and participation in innovative work practices. Design/methodology/approach: This study used a quantitative research approach by PLS-SEM analysis with a sample size of 400. The respondents are employees working for four distinct textile garment manufacturing enterprises in Vietnam. Findings: Our study found that corporate social responsibility directly impacts organisational trust, identification, well-being, and innovative work practices, and innovative work behaviours are directly related to organisational trust, employee well-being, and identification. Research limitations/implications: The study focuses on workers who have a basic understanding of corporate social responsibility. Consequently, the scope of research in diverse industries throughout the country's regions and cities must be expanded. Given the constraints, future studies should be broadened and conducted in greater detail. Each profession should concentrate its efforts on a broader range of survey subjects, such as office workers, employees, and consumers. Originality/value: Employee well-being is linked to innovative work behaviour, and the stronger the company's identity, the more likely people will be to be creative at work. The author found that people who work for a company that has a good sense of itself are more likely to be creative at work. The study shows that when employees are happy, they are more likely to work in new and innovative ways.
Jumping the Hurdles in Making New Venture: The Mediating Role of Marketing Self-Efficacy in Start-Up Intention
Authors:   People&Global Business Association, Kim Jung-Rae
Published: August 2023

Purpose: The purpose of this study is to examine marketing self-efficacy as a mediator in the resilience and start-up intention relationship. Design/methodology/approach: Questionnaires were employed to collect data from potential entrepreneurs in Korea. A total of 280 completed questionnaires were returned. Multiple regression analysis was used to test the hypothesis. Findings: Results showed that resilience and marketing self-efficacy had a positive effect on start-up intention. Further, marketing self-efficacy had a significant mediating effect on the resilience and start-up intention relationship. Research limitations/implications: This study empirically confirmed that resilience and marketing self-efficacy are important drivers of start-up intention, and it is also necessary to create an educational program that can increase the level of resilience and marketing self-efficacy. Originality/value: The present study investigates how resilience promotes firm creation, but scholars have not begun to identify specific mechanisms. The findings of this study are valuable for broadening resilience research by identifying the mediating mechanism of marketing self-efficacy between the relationship between resilience and start-up intention. This study suggests that universities and other organizations involved with potential entrepreneurs should create educational programs that can increase resilience and marketing self-efficacy.
Sticky behavior of R&D Costs and Its Relevance to Firm Value: Evidence from Listed Companies in Korea
Authors:   People&Global Business Association, Kym Moon Hyun
Published: August 2023

Purpose: The purpose of this study is to investigate the impact of sticky behavior in R&D costs on firm value. The study aims to gain insights into whether the stickiness of R&D costs is a rational choice based on managerial foresight or if it stems from managerial self-interest. Design/methodology/approach: For the regression analysis, a modified version of Ohlson's accounting-based valuation model (1995) was used to assess the impact of R&D costs on firm value. and the stickiness of R&D costs was measured using the model proposed by Homburg & Nasev (2009). International Financial Reporting Standards were adopted in Korea in 2011, and empirical analysis was subsequently conducted using data from listed companies. Findings: The empirical results were as follows. Firstly, R&D costs reported as expenses showed a negative (-) correlation with firm value, while the stickiness of R&D costs was found to have a positive (+) impact on the value relevance of earnings. Secondly, R&D costs reported as assets did not have a significant impact on firm value, and the stickiness of R&D costs did not have a significant impact on the value relevance of net assets. Research limitations/implications: Overall, the findings of this study support the accounting treatment of R&D costs as expenses. Moreover, the study reveals that the sticky behavior of R&D costs helps alleviate the negative value relevance of R&D expenses. Originality/value: This study distinguished between capitalized R&D costs and expensed R&D costs, and examined their value relevance by investigating the impact of sticky behavior on earnings and net assets.
Farklı humik asit uygulamalarının bataklık meşesi (Quercus palustris Münchh.) tohumlarının çimlenmesi üzerine etkileri
Authors: TANDOĞAN Mesut , ASLAN Vedat , ÖZDEMİR Mehmet
Published: August 2023

Humik asit ve fulvik asitler toprakların fiziksel, kimyasal ve biyolojik özelliklerine olumlu etkileriyle bitki tohumlarının çimlenmesi, verimi ve kalitesi üzerinde etkili organik toprak düzenleyicilerdir. Amerika Birleşik Devletleri’nin bir türü olmasına rağmen Avrupa’da yaygınlaşmaya başlayan bataklık meşesi (Q. palustris), hızlı büyümesi ve su-toprak koruma özelliği nedeniyle bu araştırmaya konu edilmiştir. Amacı hızlı büyüyen bu türle ilgili çimlenme ve ekim öncesi yapılabilecek humik madde işlemlerinin belirlenmesi olan bu araştırmada 3 farklı humik asit+ fulvik asit konsantrasyonunun [10 mg, 20 mg, 30 mg ve kontrol / 100 adet tohum] bataklık meşesi tohumlarının çimlenmesine etkileri test edilmiştir. Çalışma 2017 sonunda toplanan tohumlar ile iklim dolabında 20 ºC sıcaklık, 16 saat karanlık ve 8 saat ışık ile %80 rutubet koşullarında dört tekerrürlü ve her tekerrürde 25 tohum ile yürütülmüştür. Bu tohumlara Türkiye Kömür İşletmeleri Kurumu (TKİ)-Hümas uygulaması sonucunda en yüksek çimlenme oranı 20 mg’lık; en yüksek fidecik ve kökçük boyu ise 10 mg’lık dozlarda ölçülmüştür. Elde edilen bulgular, Türkiye’de türün fidan üretimi, ağaçlandırma ve peyzaj potansiyelinin belirlenmesinde faydalı olabilecektir.
KADINLARDA BAĞLANMA STİLLERİ VE SİNDERELLA SENDROMU
Authors: Atsan Çakır Elif , Vural Batık Meryem , Çakır Engin
Published: August 2023

Bağımsızlıktan korkan kadınları ifade eden “Sinderella Sendromu”, kadınların yaşadıkları olumsuzluklara rağmen bir gün bir erkek tarafından kurtarılmayı bekleyen ve psikolojik bağımlı özellikte olduğunu gösteren bir kavram olarak karşımıza çıkmaktadır. Bu araştırmada Sinderella Sendromunun bağlanma stilleri açısından incelenmesi amaçlanmıştır. İlişkisel tarama modeli kullanılarak gerçekleştirilen bu araştırmaya, uygun örnekleme yöntemi ile ulaşılan 25 yaş üstü 431 yetişkin kadın katılmıştır. Veriler “Sinderella Sendromu Ölçeği” ve “Üç Boyutlu Bağlanma Stilleri Ölçeği” aracılığıyla toplanmıştır. Elde edilen bulgulara göre Sinderella sendromunun tüm alt boyutları ile kaçınan ve kaygılı bağlanma stilleri arasında anlamlı düzeyde ve pozitif yönde korelasyon olduğu belirlenmiştir. Kaçınan ve kaygılı bağlanma stili, Sinderella sendromunun %6.4’ünü açıklamaktadır. Ebeveynleri ayrı olan ve ebeveyni vefat etmiş olan kadınların kariyerden vazgeçme puanlarının ebeveynleri birlikte olan kadınlara göre anlamlı ölçüde daha yüksek olduğu; üniversite mezunlarının Sinderella Sendromu düzeyinin daha düşük olduğu belirlenmiştir. Araştırma sonuçları Sinderella Sendromuyla da ilişkili görünen toplumsal cinsiyet rollerinin bağlanma stilleriyle ilişkisi ele alınarak yorumlanmıştır.
THE RUSSIAN-UKRAINIAN CRISIS AND THE ENERGY MARKET
Authors:   University of Zagreb, Faculty of Economic and Business, Department of Trade and International Business, Zagreb, Croatia, Nikolić Helena
Published: August 2023

The paper deals with the current crisis, the Russian-Ukrainian war, and events on the energy market. Emphasis is placed on the European Union since Russia is of strategic importance in the trade of major energy products. Namely, the majority of Russian energy exports on a daily basis is directed towards Europe. Nevertheless, Russia's aggressive venture was strongly condemned by the member states of the European Union, which are also members of NATO. Guided by the purpose of a peace alliance, despite energy connectivity, the European Union introduced a series of restrictive measures. Thus, it took an economically quite hostile position. In response to the restrictions, Russia predictably manipulated the energy supply chain and threatened Europe's energy survival. The European Union faced enormous challenges due to disturbed peace, social insecurity, energy uncertainty, inflation, threatened business and the gap between supply and demand. Therefore, this paper takes an analytical approach to this problem and analyses potential strategic solutions for both Europe and Russia. The end of the war is indefinite and still invisible, but what is doubtless is that the consequences in energy flows, strategic approaches and trends in the energy aspect will change forever.
MODERN SOLUTIONS FOR URBAN PUBLIC COLLECTIVE TRANSPORT IN POLAND
Authors:   University of Lodz, Poland, Department of Labour and Social Policy, National Institute of Local Government, Wieczorek Iwona
Published: August 2023

The implementation of intelligent transport system solutions in cities provides passengers with better comfort and safety, moreover it considers the adaptation of vehicles to the needs of people with disabilities, the distribution of tickets as well as the broader infrastructure. The progressive digitization of transport services creates the opportunity to take use of the time spent traveling. Planning a smart city offering effective solutions in the field of urban mobility is one of the main problems of urban areas. The development of electromobility should contribute to reducing greenhouse gas emissions and increasing the share of alternative fuels in public transport. Through a system of incentives for residents to cycle and walk, local governments create their mobility. The aim of the study is to present current solutions in public transport used in Polish cities. The empirical material based on the survey allows for a comprehensive look at the development of urban public transport.
MEASURING THE SOCIAL WELFARE OF A SOLAR POWER PLANT IN WEST AFRICA - A SOCIAL RETURN ON INVESTMENT (SROI) MODEL
Authors:   Forschungszentrum Jülich, IEK-STE, Jülich, Germany, Schlör Holger , Kuckshinrichs Wilhelm
Published: August 2023

The purpose of the paper is to present an example for the electrification of rural Africa. We will discuss the preconditions, necessities and obstacles of building a solar power plant in rural Niger. For the energy supply of a small village in West Africa a solar pilot plant (20 kWp solar plant with battery storage) is installed. This energy hub makes it possible to provide solar-powered electricity for the town, operate a (ground) water pumping system-delivering water for households and for irrigation of fields. The aim of the paper is to determine the social and individual welfare effects of the new energy system. Therefore, the social well-being of the village is analysed by the social return on investment (LSROI) model. The analysis starts with an empirical survey of the households of the village. The villagers were asked to assess the benefits of the new solar power plant investment for their household and for the whole village. Investment and household valuation are intertemporal decisions whose consequences occur at different points in time, and social actors may have different time preferences. Therefore, two different discount methods are considered. The classical standard discounting model for the technical investment and the hyperbolic discounting for the discounting of the utility of the pilot plant for the households. Four different time preference rates (0%, 1%, 5%, 10%) are used to capture different risk assumptions caused by the current global and local risks (rising energy and food prices, corona pandemic, climate change, water scarcity) and defining thereby the social time preference space. The social return on investment model determines the social return on investment for the households of the village. By rising the time preference rate from 0% to 10% a significant decline of the social benefits of the solar pilot plant can be determined. The global and local risks will rise the time preference rate of the villagers because the present becomes more and more difficult to manage and the visible future is reduced. Hence, the social revenues of the pilot plant decrease over time.
FACTORS AFFECTING MICRO AND SMALL ENTERPRISES’ ACCESS TO MICROFINANCE IN CROATIA
Authors:   Polytechnic of Šibenik, Croatia, Šišara Jelena , Šarlija Nataša
Published: August 2023

Micro, small and medium enterprises (MSMEs) are recognized worldwide as crucial element of boosting economic growth, reducing unemployment and poverty. In order to achieve growth, develop new products, create new jobs, they need to get finance. However, they are facing financing constraints, and persistent limitations to access to finance remain to be a major obstacle for them. Thus, financial inclusion is important for economic welfare and sustainable economic development. This study aims to identify the determinants of access to micro loans for micro and small enterprises (MSEs) by considering entrepreneur characteristics, firm characteristics, and perceived business obstacles. Data set of 173 MSEs from Croatia – the region Dalmatia, is available for the purpose of investigating and comparing characteristics of those that are financed and those that are not financed by micro loans. Besides, the paper also presents the logistic regression model which identifies set of characteristics which have significant relation with the MSE tendency to be financed by micro loans.
A Mixed Methods Approach to the Effectiveness of Corequisite Developmental Mathematics Classes
Authors:   , Hamman John , Klein Valerie
Published: August 2023

The purpose of this mixed method study is to determine the effectiveness of the corequisite model on collegiate mathematics developmental education. Corequisite models are designed to allow students who place into pre-college level courses to complete the prerequisite material and college-level coursework simultaneously in their first semester. Traditionally, especially at open-access institutions like many of our nation's community colleges, students placed into developmental courses, are often charged full tuition to repeat coursework already completed in high school, wasting both time and money for the student. In this accelerated model, students who need remediation receive "just-in-time" delivery of remedial content, often from the same instructor as the college-level class they are enrolled in. This saves the student from having to face a long sequence of developmental courses and the challenges of re-enrolling in multiple semesters. The primary research question to compare how corequisite students' feelings about the subject matter differ from their peers who took a traditional developmental math sequence and if this approach helps close the achievement gaps between racial groups in mathematics. Developmental classes, which were originally designed to help underprepared students succeed in college, have become a substantial academic and financial barrier for students, especially those from historically underrepresented categories and corequisite course can hopefully fulfill that original purpose with more equitable and favorable results.
The use of pediatric fall risk assessment tool in gastrointestinal endoscopic procedures: A prospective study
Authors: YALÇIN Nadir , GÖKTAŞ Mehmet Akif , GÜMÜŞ Ersin
Published: August 2023

Background and Aims: The aim of this study is to evaluate the fall risk with Humpty Dumpty Fall Scale and determine related risk factors in pediatric patients undergoing gastrointestinal endoscopy. Materials and Methods: A prospective descriptive study was conducted in a large tertiary pediatric hospital. Patients' demographics, type of endoscopy, duration of endoscopic procedures, type of procedural sedation, doses of administered drugs during anesthesia, and post-procedure Humpty Dumpty Fall Scale scores were collected. Post-hoc and logistic regression analyses were performed to identify within-group differences and independent predictors of patient outcomes. Results: One hundred ninety-two pediatric patients (54.2% female) with a mean (standard deviation) age of 11.16 (5.32) years were admitted for a diagnostic gastrointestinal endoscopy. During procedures, the most commonly administered sedatives were midazolam (98.9%), propofol (96.9%), fentanyl (63.0%), and ketamine (34.9%). According to the Humpty Dumpty Fall Scale, 148 (77.1%) patients had a high risk for falls. No falls after endoscopic procedures was observed in the patients. When the predictive factors determining being at high-risk for falls were examined, the simultaneous application of esophagogastroduodenoscopy and colonoscopy under the same procedural sedation increases the risk of being high-risk 5.2 times compared to the performing esophagogastroduodenoscopy alone (p = 0.047). Conclusion: To the best of our knowledge, this is the first study evaluating the use of Humpty Dumpty Fall Scale to predict falls in pediatric patients undergoing gastrointestinal endoscopy with procedural sedation. Although 77.1% of the patients were found to be at high risk for falls, there was no fall event after the endoscopic procedures due to precautionary measures. Our results indicate that pediatric patients undergoing gastrointestinal endoscopy with sedation are at increased risk of falling and preventive measures should be taken.
Atribución de responsabilidad penal a máximos comandantes en casos de violencia sexual en el conflicto armado colombiano. Aproximaciones a la experiencia de Justicia y Paz (2010-2021)
Authors: Chaparro Moreno Liliana Rocío , Barraza Morelle Cecilia , Gutiérrez María Juliana
Published: August 2023

Esta investigación estudia las formas de imputación que la jurisdicción de Justicia y Paz ha desarrollado en relación con los crímenes sexuales reconocidos en el marco del patrón de macrocriminalidad de violencia basada en género, en particular, en las decisiones referidas al Bloque Pacífico Héroes del Chocó y al Frente Héctor Julio Peinado Becerra, las cuales fueron objeto de apelación ante la Corte Suprema de Justicia. En ambas sentencias se desarrollan las formas de atribución de responsabilidad a comandantes por hechos de violencia sexual y se establecen los requisitos sobre las modalidades de la autoría mediata en aparatos organizados de poder por dominio de la voluntad y de la responsabilidad del superior por omisión. Se concluye la necesidad de demostrar alguno de los siguientes elementos como requisitos indispensables para poder atribuir responsabilidad a los superiores: que la violencia sexual hizo parte de las políticas del grupo armado, que los comandantes dieron la orden de ejecutar los actos o, que aún conociendo de su ocurrencia, no hicieron nada para prevenir que se perpetraran. En clave de género, este estándar implica la construcción de contextos y la valoración de las pruebas que considere las particularidades de este crimen, alertando sobre el riesgo de generar un doble estándar, más gravoso, para la violencia sexual, lo cual afectaría gravemente los derechos de las víctimas de este crime
Las disputas de género del pueblo soberano: la domesticación del poder constituyente por parte del constitucionalismo liberal en los plebiscitos de Colombia y Chile
Authors: Pabón Mantilla Patricia , Estupiñan Achury Liliana
Published: August 2023

El presente texto parte de la pregunta acerca de ¿cuál es la incidencia de las disputas de género en el campo de batalla por el poder constituyente como poder soberano, en los casos de los plebiscitos de Chile y Colombia? Para su abordaje nos aproximamos primero a la discusión sobre soberanía popular, poder constituyente y poder constituido, revisando la tradición del constitucionalismo, segundo nos acercaremos a las distintas críticas propuestas a la tradición, en especial la crítica del modelo de democracia agonística y la crítica feminista al derecho y tercero realizaremos un análisis del caso de Colombia en el triunfo del no en el Plebiscito por la paz en el 2016 y el reciente caso del plebiscito de cierre en Chile, en donde triunfó el no apruebo a la reforma constitucional. En los dos casos se encuentra un punto de encuentro: las disputas alrededor del género, el discurso del miedo y el papel de los argumentos de las elites conservadoras. El triunfo del No en ambos procesos permite entrever, por un lado las disputas de género al interior del poder constituyente, en donde las luchas por la garantía de los derechos que se vindican desde la crítica feminista al derecho tienen que capitular para lograr mínimos en cuestiones divisivas como los derechos sexuales y reproductivos y la diversidad sexual, en donde la representación se mantiene, frente al triunfo de las mayorías, pero sin lograr la garantía del reconocimiento ni la construcción de un consenso constitucional que permita avanzar frente a la instrumentación de lo decidido. Desde ahí la salida institucional al No permite analizar la forma en que el derecho y en concreto el constitucionalismo mediante el poder constituido, termina domesticando al poder constituyente que se impone sobre el pueblo soberano. Las disputas de género permiten revelar las insuficiencias del constitucionalismo, que sigue dependiendo de la democracia representativa liberal para su puesta en marcha. El problema que se formula se aborda desde el paradigma hermenéutico comprensivo, se parte de una revisión de fuentes documentales siguiendo la técnica del análisis del discurso.
Propagation of Rayleigh Wave in Sandy Media with Imperfect Interface
Authors: Madan Dinesh K , Kumar Naveen
Published: August 2023

In the present study, the propagation of Rayleigh wave in a sandy layer overlying a sandy semi-infinite media is investigated, with the interface considered imperfect. Expressions for displacement components are obtained. The dispersion frequency equation is derived using suitable boundary conditions. In particular cases, when interface is perfect and elastic media replace sandy media are also discussed. The effects of imperfectness and sandy parameter on the Rayleigh waves’ phase velocity are investigated using MATLAB software. The theoretical results obtained may find useful applications in geophysics, civil engineering and soil mechanics
Investigation of 1,2,4-Triazole Derivatives as Potantial Anti-Diabetic Agents: In vitro Enzyme Inhibition and In silico Pharmacokinetic Studies
Authors: ÖZ TUNCAY Fulya , ÇAKMAK Ümmühan
Published: August 2023

Diabetes Mellitus (DM), kan glukoz seviyesinin yükseldiği, postprandiyal hiperglisemiye neden olan, böbrek yetmezliği, körlük, kardiyovasküler hastalıklar ve sinir hasarı gibi pek çok sekonder probleme neden olan metabolik bir hastalıktır. α-Amilaz ve α-glukozidaz doğrudan tip II DM ile ilgilidir ve bu enzimlerin inhibitörleri nişasta sindirimini inhibe edebildiğinden DM tedavisinde yaygın olarak kullanılmaktadır. Bu çalışmada flor içeren 1,2,4-triazol-5-on türevlerinin (4a-d, 6a-b, 7a-b, 8a-b) α-amilaz ve α-glukozidaza karşı inhibisyon potansiyelleri araştırıldı. Tüm moleküller, akarboz standardı kontrolü altında (IC50 = 411,3 ± 6,4 uM) 185,2 ± 3,4 ila 535,6 ± 5,5 μM arasında değişen farklı oranlarda α-amilaz inhibisyonu sergiledi; α-glukozidaz varlığında ise, pozitif kontrol akarboza kıyasla IC50 değerleri 205,0 ± 3,8 ila 803,2 ± 10,3 μM arasında değişim gösterdi (IC50 = 252,0 ± 4,8 μM). 10 farklı inhibitör molekülü arasında 4c'nin her iki durumda da mükemmel inhibe edici potansiyele sahip olduğu tespit edildi ve a-amilaz ve a-glukozidazın inhibisyon türü kinetik çalışmalarla değerlendirildi. Ayrıca SwissADME yazılımı kullanılarak 4c molekülünün fizikokimyasal ve farmakokinetik özellikleri hesaplandı. Mevcut araştırmanın sonuçları, tip II DM'nin tedavisi için umut vaat eden bir aday olarak 4c molekülünün potansiyelini desteklemektedir.
Investigation of Microstructure and Wear Behaviors of AZ91 Alloy Under Different Heat Treatments
Authors: AKGÜN Gökçen , BURAN Dinçer , SARAÇ Mehmet Fahri
Published: August 2023

This article aims to experimentally investigate the effect of heat treatment applied to AZ91 magnesium alloys on wear behavior under different applied load conditions. Apart from as-cast AZ91 alloy, AZ91 alloy samples were subjected to both solid-solution treatment (400°C for 16 hours) and three different aging processes (216°C for 4, 8 and, 12 hours) under three different applied loads (10 N, 25 N and, 50 N). Microstructural, characteristic, hardness, friction coefficient, and wear rate behavior under various applied loads were investigated against each other.

The results showed that the wear rate increased in all samples with the applied load, while the friction coefficient decreased. While the highest wear rate was observed only in the solid-solution treated sample, it was observed that the wear rate changed inversely with the aging time. Furthermore, the micro-hardness increased in direct proportion with the aging time. While it was observed that the sample, which was aged for 12 hours, wore 13.6% less under 10 N load than the sample that was only treated with solid-solution, the results showed that the same sample wore about 25% less under 50 N load. The increase in β-precipitates in the structure with the aging period increased the micro-hardness, while the increase in hardness decreased the wear.
Biokomposit Papan Partikel diperkuat Serat Alam Sabut Kelapa dan Tempurung Kelapa dan matriks epoksi
Authors: Ginting Delovita , Syahputra Romi Fadli , Jannah Wirdatul
Published: August 2023

Papan partikel serat alami (biokomposit) dapat dijadikan alternatif pengganti material konvensional karena ramah lingkungan, sumber terbarukan dan sifatnya yang dapat terurai secara alami. Penelitian ini menyajikan studi tentang karakterisasi mekanik dan fisis papan partikel polimer diperkuat serat alam yaitu sabut kelapa dan tempurung kelapa. Variabel tetap dalam penelitian ini adalah jumlah fraksi matriks yaitu resin eposki. Variabel fraksi massa penyusun papan partikel dalam penelitian ini yaitu sabut kelapa:tempurung kelapa :epoksi adalah PP1 (30:0:70), PP2 (22,5:7,5:70), PP3 (15:15:70), PP4 (7,5:22,5:70), dan PP5 (0:30:70). Papan partikel diuji kelenturannya menggunakan mesin Universal Testing Machine mengacu pada ASTM D 7-90-03, ketangguhan impak sampel menggunakan mesin Impact Tester mengacu pada ASTM D 6110. Sampel diuji kerapatan dan pengembangan tebalnya mengacu SNI 03-2105-2006. Hasil pengujian sampel menunjukkan nilai kerapatan optimum pada sampel PP3 yaitu sebesar 1,05 g/cm3 dengan sampel diperkuat sabut kelapa dan tempurung kelapa. Hasil pengujian nilai uji ketangguhan impak optimum pada sampel PP5 yaitu sebesar 3.20 J/cm2 dan hasil pengujian nilai uji kuat lentur optimum pada sampel PP5 yaitu 382,29 Kgf/cm2 dengan sampel diperkuat tempurung kelapa. Natural fiber particle board (biocomposite) can be used as an alternative to conventional materials because it is environmentally friendly, a renewable source and is naturally biodegradable. This research presents a study on the mechanical and physical characterization of natural fiber reinforced polymer particle board, namely coconut coir and coconut shell. The fixed variable in this study was the number of matrix fractions, namely epoch resin. The variable mass fraction of the particle board in this study was coconut coir:coconut shell:epoxy was PP1 (30:0:70), PP2 (22,5:7,5:70), PP3 (15:15:70), PP4 (7,5:22,5:70), and PP5 (0:30:70). Particle board was tested for flexibility using the Universal Testing Machine referring to ASTM D 7-90-03, the impact toughness of the samples using the Impact Tester machine referring to ASTM D 6110. The samples were tested for density and thickness expansion referring to SNI 03-2105-2006. The results of the sample testing showed that the optimum density value for the PP3 sample was 1.05 g/cm3 for the reinforced coconut coir and coconut shell samples. The test results for the optimum impact toughness test value on the PP5 sample were 3.20 J/cm2 and the test results for the optimum flexural strength test value on the PP5 sample were 382.29 Kgf/cm2 with the coconut shell reinforced sample.
Desain dan Proses Manufaktur Prototipe Mesin Pengupas, Pemotong, dan Penggiling Bawang Merah Model Portabel
Authors: Ulum Miftahul , Pratama Febriansyah Sukma , Putra Arrizal Eka , Syarifuddin Imam , Sugiono Didik
Published: August 2023

Bawang mengalami proses pengupasan dan pemotongan. Industri rumah tangga masih menggunakan berbagai jenis mesin pengupas dan pemotong mandiri. Pada penelitian ini dirancang mesin pengupas, pemotong, dan penggiling dengan menggunakan pipa pengupas yang dapat disesuaikan untuk kebutuhan pengupasan atau pemotongan langsung. Metode yang digunakan untuk memperoleh harga pokok produksi adalah dengan menganalisis perhitungan proses manufaktur, termasuk perhitungan komponen proses manufaktur. Hasil perencanaan dan perhitungan menunjukkan bahwa gaya pengelupasan adalah 2,49 kgf, sedangkan gaya potong adalah 1,8 kgf. Pada putaran yang direncanakan 700 rpm, daya motor menjadi 117 W, sehingga digunakan motor dengan daya 0,25 HP. Percobaan menggunakan 1 kg bawang merah, waktu pengupasan mencapai sekitar 3,5 menit dan waktu pemotongan 20 detik. Total waktu proses pemesinan diperoleh 42,17 jam, total biaya proses pemesinan diperoleh Rp1.328.141, total pembelian bahan Rp5.220.000, dan total biaya produksi mencapai Rp6.548.141. Onions undergo the processes of peeling and cutting. Home industries still use different types of independent peeling and cutting machines. In this study, a peeling, cutting, and grinding machine were designed using an adjustable peeling tube for peeling or direct cutting needs. The method used to obtain the cost of production was by analyzing the calculation of the manufacturing process, including the calculation of the component manufacturing process. The results of planning and calculating showed that the peeling force was 2.49 kgf, while the cutting force was 1.8 kgf. At a planned rotation of 700 rpm, the motor power became 117 W, so a motor with a power of 0.25 HP was used. The experiment using 1 kg of onions, the peeling time reached about 3.5 minutes and the cutting time was 20 seconds. The total machining process time gained 42.17 hours, the total machining process costs earned IDR 1,328.141, the total purchase of materials was IDR 5,220,000, and the total production cost reached IDR 6,548,141.
T1-Weighted 3D-Black-Blood-Imaging in Giant-Cell Arteriitis Temporalis and Extracranial Arteritis: A Case Report
Authors: Wallner Walter M. , Grimm Jochen , Hruby Georg , Steinbacher Jürgen , Weis Serge , McCoy Mark R. , Pfaff Johannes A. R.
Published: August 2023

Giant-cell arteritis (GCA) is a common vascular inflammatory disorder that often presents with clinical symptoms necessitating prompt diagnosis. Delay in diagnosis can lead to severe patient impairment. This case report highlights the utility of contrast-enhanced T1-weighted 3D-Black Blood (BB) imaging in the diagnostic work-up of GCA, along with its histological correlations. We present the case of an 81-year-old male patient with clinical symptoms suggestive of bilateral temporal arteritis. The patient underwent cranial magnetic resonance imaging (MRI) with contrast-enhanced T1-weighted 3D-BB sequence, which revealed wall-enhancement with perivascular "stranding" of both temporal arteries and their branches, luminal narrowing, and pathological enhancement of the vertebral and basilar arteries. Histological analysis after biopsy confirmed a diagnosis of temporal arteritis.
This case report emphasizes the valuable role of contrast-enhanced T1-weighted 3D-BB imaging in the diagnosis of GCA, providing higher resolution and flow signal suppression. The observed "perivascular stranding" and histological findings contribute to our understanding of the disease. Radiologists should consider incorporating this imaging sequence into their diagnostic protocols when GCA is suspected.
The Progress of Human Genomics from the Standpoint of the Legal Approach
Authors:   Chief Research Scientist of the Department of Philosophy of Law, History and Theory of State and Law of the Institute of State and Law of the Russian Academy of Sciences, LL.D., Lapaeva Valentina V.
Published: August 2023

The article reviews the prospects of development of human genomics primarily from the standpoint of the impact of the progress of the natural science knowledge on the legal sphere. The author analyzes the danger of technological dehumanization of an individual and opportunities for legal combating of this process.