bluuebunny/crossref_metadata_2025 huggingface dataset:
The efficacy of the smartphone App for the self-management of low back pain: a systematic review and assessment of their quality through Mobile Application rating scale (MARS) in Italy (Preprint)
Authors: Scala Luca , Giglioni Gloria , Bertazzoni Luca , Bonetti Francesca
Published: January 2024

BACKGROUND

Self-management interventions from mobile apps are valuable tools to support managing patients with low back pain (LBP). To date, there are no studies that have made a qualitative assessment of the content of downloadable apps in Italy related to LBP self-management.

OBJECTIVE

The purposes of this systematic review were to (a) summarize the available studies on the efficacy of smartphone apps for self-management of LBP and (b) assess quality and functionalities of several apps.

METHODS

According to the Prisma Checklist, six bibliographic databases were searched by two reviewers with the keywords 'low back pain', 'mobile application,' 'smartphone', and 'telemedicine'. Instead, mobile applications were searched on the Italian Apple App Store and Google Play Store using the keywords "Low back pain", "lumbago", and "lombalgia". Then, after extracting the data, each application was evaluated with the Mobile Application Rating Scale (MARS) by four reviewers.

RESULTS

After eliminating duplicates, 852 records were screened, and 16 were included in the systematic review: six Randomized Controlled Trials (RCT), three systematic reviews, three systematic assessments, one scoping review, and one non RCT. Of the six RCT included, four reported a statistically significant decrease in pain in favor of app group, and two RCTs did not. Only in a non-RCT was an increase in the disability score. In application research, we identified and evaluated 25 applications through the MARS. The overall scores ranged from 1.93 to 3.92 for the IOS app and 1,73 to 4,25 for the Play Store app. The highest values are reported in the "functionality" category and the lowest in the "information" category. ICC calculated on all applications reports good reliability values (ICC=0.791) with a 95% confidence interval ranging from 0.583 to 0.901.

CONCLUSIONS

The findings suggest that we need more and higher quality comparison studies, and few apps meet satisfying quality, content, and functionality criteria for LBP Self-management. Integrating smartphone applications to support rehabilitation intervention is a topic that needs further exploration to assess its effects. However, to improve the “information” category, involving scientific institutions in developing new apps will be helpful.
Prevalence and risk factors of Long COVID 3 months after infection during the outbreak of COVID-19 at the end of 2022 in China: A cross-sectional survey (Preprint)
Authors: Yan Wei , Xia Hui , Sun Guiju , Shi Yufei , Wang Shaokang , Liao Wang , Pan Da
Published: January 2024

BACKGROUND

Long COVID has caused substantial health burdens on COVID-19 patients. Following the changes of COVID-19 prevention and control measures in China at the end of 2022, there was a notable surge in the number of infections. Nevertheless, few studies have been conducted to explore the prevalence and risk factors of Long COVID among patients during this outbreak.

OBJECTIVE

This cross-sectional survey aimed to investigate the prevalence, symptoms, and risk factors of Long COVID among patients in China.

METHODS

We surveyed 533 individuals in China through a systematical questionnaire designed for Long COVID specifically, and a total of 436 COVID-19 patients were included in the analysis. The questionnaire included demographics, vaccination status, comorbidities, self-perceived symptoms, behavioral habits and dietary conditions. Prevalence of Long COVID, frequencies of symptoms, and risk factors were analyzed.

RESULTS

115 (26.38%) patients reported at least one symptom of Long COVID. The six most reported symptoms were fatigue (46.96%), coughing and wheezing (18.26%), attention disorder (18.26%), anxiety (15.65%), hair loss (15.65%) and cough (14.78%). Compared with patients aged 18-29 years, those aged 30-39 years (OR 2.367, 95%CI 1.066-5.256, p < 0.05) had a higher risk of developing Long COVID. Having sleep problems (2.324, 1.462-3.693, p < 0.001) was identified as associated risk factor of Long COVID. Compared to no exercise, engaging in light exercise (0.463, 0.262-0.818, p < 0.01) was identified as associated protective factor.

CONCLUSIONS

Our study revealed that since the outbreak of COVID-19 in China at the end of 2022, many infections have experienced persistent symptoms associated with Long COVID, imposing substantial health burdens on COVID-19 patients. The risk factors associated with Long COVID identified in this study can serve as valuable references for developing effective interventions aimed at facilitating recovery among COVID-19 patients.
Primagravida Application Usability And User Satisfaction As A Digital Health Initiative For Pregnancy Educational Media And Remote Rural Monitoring
Authors: Lismidiati Wiwin , Sumunar Dimas , Kusumawati Happy Indah , Purnama Mia
Published: January 2024

Introduction: Nutritional status during pregnancy is one of the critical factors in determining maternal and fetal development, affecting birth weight, perinatal mortality, and infant growth. Regular monitoring of pregnant women’s health is crucial as preventive measures and promotive approaches for both mother and fetus. Primagravida, a web-based system, was developed to assist pregnant women in rural areas in monitoring their health, especially during the COVID-19 pandemic. This study aimed to evaluate usability and user satisfaction in using Primagravida. Method: Quantitative descriptive research with a cross-sectional design was employed. The study was conducted in the Kalibawang Primary Health Center (PHC) service area between June - October 2021. Seventy-nine pregnant women participated in this study. Pregnant women were registered and observed for their pregnancy profile through a web-based service integrated with PHC maternal and child health care. In evaluating the system usability, the current study utilized System Usability Scale (SUS), while a modified users’ satisfaction questionnaire was employed to capture participants’ perceptions. Results: Results indicated that most participants were satisfied with the benefits, information relevance, content adequacy and clarity, platform availability, and up-to-the-minute curated knowledge provided by the system. Utilization of this system reduced the number of visits to PHC since health monitoring could be performed virtually. Regarding system usability, respondents reported a score of 70, and the average score of respondents was 66. Conclusion: Pregnant women have adopted the Primagravida application to monitor their health and fetal status in Kalibawang District, Kulon Progo. Feature development is required to accommodate the upcoming demands of holistic maternal and perinatal care.
Development of SatuJantung 2.0 Revised Version Android Application for Cardiac Arrest Pre-Hospital Management
Authors: Gizela Beta Ahlam
Published: January 2024

Cardiac arrest is one of the leading causes of death in Indonesia. Deaths can be prevented if symptoms are recognized early, and immediate assistance can be provided. An Android application called SatuJantung 2.0 was developed in 2018 and has been in use. However, during evaluation in implementation, it was found that the application is not compatible with the latest version of Android. An application revision is needed with newer features.The objective of this study is to develop a revised version of SatuJantung 2.0 with more advanced specifications. Methods used is action research, consist of 4 cycles: 1) Planning, 2) Action, 3) Observation, 4) Reflection.Final result of this study is an android application named SatuJantung 2.0 revised version. This application is developed in Bahasa Indonesia. This application has menu for login, registration, user profile, user status (based on analysis of user profile by risk calculator), user information, summary, emergency button, guidance for the first responders, sending WhatsApp message for the family/contact registered with the geotag location, and emergency call to ambulance.SatuJantung 2.0 revised version, named SatuJantung 2.5, provides an easy way for patients calculate the risk factors, get information about the disease and management, ask help in emergency situation, and guide first responders to do prehospital management in cardiac arrest case.
Inovasi Kebijakan Badan Usaha Milik Desa untuk Meningkatkan Pendapatan Asli Desa dalam Perspektif Neo Institusionalisme
Authors: Irawan Jairi , Wardiyanto Bintoro , Setijaningrum Erna
Published: January 2024

Pemerintah berupaya menjadikan Badan Usaha Milik Desa (BUM Desa) menjadi center perekonomian di desa. Tugas BUM Desa adalah meningkatkan Pendapatan Asli Desa (PADesa) dan pendorong dinamisasi perekonomian untuk kesejahteraan masyarakat. Minimnya penyertaan modal serta pandemi awal tahun 2020 mengharuskan Pemerintah Desa melakukan berbagai kebijakan untuk mempertahankan eksistensi BUM Desa. Tujuan penelitian ini adalah mengidentifikasi bagaimana munculnya inovasi kebijakan BUM Desa serta kontribusinya dalam meningkatkan PADesa. Penelitian ini menggunakan metode kualitatif eksploratif dimana informasi digali dengan wawancara mendalam. Para Informan merupakan aktor yang terlibat langsung dengan BUM Desa Larasati. Data penelitian dianalisis dengan perspektif Neo Institusionalisme. Penelitian ini menghasilkan, antara lain: pertama, inovasi kebijakan tidak terlepas dari peran aktor kunci di dalamnya; kedua, inovasi kebijakan yang telah dilakukan BUM Desa telah meningkatkan PADesa dalam tiga tahun terakhir sejak tahun 2020.

Kata Kunci: BUM Desa, Inovasi, PADesa, Neo Institusinalisme

Abstract

The government is trying to make BUM Desa the center of the economy in the village. The task of BUM Desa is to increase village original income and drive economic dynamics for community welfare. The lack of capital investment and the pandemic early 2020 required the village government to implement various policies to maintain its existence. The goal of this research is to determine how the emergence of Village BUM policy innovations affects PADesa. This study uses exploratory qualitative methods, wherein the informants are collected through in-depth interviews. The informants are actors who are directly involved with BUM Larasati Village. The research data are analyzed using a neo-institutionalist perspective. The results of this research show that policy innovation is inseparable from the role of key actors in it, and these policy innovations have increased PADesa in the last three years since 2020.

Key words: BUM Desa, Innovation, PADesa, Neo-Institutionalism
Protected Time for Program Administration among Nephrology Program Leadership in the United States
Authors: Yuan Christina M. , Young Brian Y. , Watson Maura A. , Sussman Amy N.
Published: January 2024

Background

In 2022, the Accreditation Council for Graduate Medical Education reduced minimum program director protected time for program administration from 10 to 8 h/wk, with no core faculty requirement. We surveyed program leaders regarding the effect of these changes.

Methods

This is an anonymous, online survey of all US adult nephrology program directors (March 2023), who forwarded core faculty/associate program director (APD) surveys. The questions included protected time in 2022–2023 and 2021–2022, whether it was sufficient, estimated time needed, and two validated single-item burnout measures (emotional exhaustion and depersonalization). The analysis was descriptive.

Results

Program directors: Their response was 62% (92/149), with geographic distribution/approved fellow positions similar to those nationally. Overall, protected time slightly increased from 2021 to 2022, largely in >6-fellow programs, but 42% (13/31) of these were still not meeting minimum requirements. Only 37% (30/81) agreed that they had sufficient protected time. Those with ≤6 fellows estimated needing 11±4 h/wk (15±4 h/wk with >6 fellows). Twenty-five percent (20/81) reported high levels of emotional exhaustion. Core faculty: 57 of 149 program directors (38%) forwarded the link to 454 faculty. Ninety-four percent of APDs (49/52) responded, reported 3±3 h/wk protected time (42% had none), and estimated needing 6±3 h/wk, regardless of program size. Sixty-seven of 402 core faculty (17%) responded, reported 2±3 h/wk (50% had none), and estimated needing 5±3 h/wk, regardless of program size. ≥85% of APDs and core faculty precepted clinical rotations, gave lectures, evaluated fellows, mentored scholarly work, and participated in recruitment. The majority assisted in fellow remediation. Thirty-four percent (15/44) of APDs and 21% (13/61) of core faculty reported high levels of emotional exhaustion.

Conclusions

Program leaders estimated minimum necessary program administration times (on the basis of program size) that exceeded the Accreditation Council for Graduate Medical Education requirements. APDs/core faculty contributed substantially to nonclinical training. Thirty-four percent of APDs and 25% of program directors had a high likelihood of burnout.
Complications of Peritoneal Dialysis Part II
Authors: Cheng Xin Bo Justin , Bargman Joanne
Published: January 2024

Peritoneal dialysis (PD) is a form of KRT that offers flexibility and autonomy to patients with ESKD. It is associated with lower costs compared with hemodialysis in many countries. Unlike mechanical complications that typical arise early in the course of treatment, noninfectious, nonmechanical complications often present late in patients who are established on PD. In this review, we first discuss abnormal-appearing drained dialysate, including hemoperitoneum, chyloperitoneum, and noninfectious cloudy dialysate. The underlying cause is frequently unrelated to PD. We then discuss encapsulating peritoneal sclerosis, a rare complication of PD. Finally, we review metabolic changes associated with PD and methods to mitigate its effects.
Peritoneal Dialysis Care for People with Diabetes, Polycystic Kidney Disease, or Advanced Liver Disease
Authors: Agarwal Shailesh , Gillis Laura , Wilkie Martin
Published: January 2024

People treated with peritoneal dialysis (PD) often have complicating conditions that require careful management. Three such conditions are reviewed in this article—diabetes mellitus, polycystic kidney disease, and chronic liver disease. Each of these conditions requires an understanding of both its effect on the delivery of the PD and the effect of the PD on the condition itself. In diabetes, glucose absorption from the dialysate complicates metabolic control and affects salt and water management and patient outcome. There is particular benefit in clinical care being delivered through a multidisciplinary team that involves both kidney and diabetes experts. In relation to polycystic kidney disease, a key issue is the potential for increased intraperitoneal pressure due to the combined effect of the enlarged polycystic organs and the presence of the dialysis solution, and therefore, the PD prescription requires to be managed with a particular focus on limiting that pressure. For patients with liver disease, key issues include nutritional support because PD can add to protein losses already consequent on the liver disease itself. Considered approaches are required to manage ascites and reduce infection risk and the potential for hernias and leaks to develop. Mortality in this group is unfortunately high—however, PD may present a better management option than hemodialysis in many patients—particularly in those where the liver disease is complicated by low BP, clotting abnormalities, or troublesome ascites. Overall, the choice to use PD in patients with these complicating conditions should be based on shared decision making with the patient and their family members informed by high-quality information in which risks, benefits, and management strategies are clearly presented.
Construction of Practical Teaching System for Business English Majors —Take Business English Majors of Guizhou University of Finance and Economics as an Example
Authors: Cai Jing
Published: January 2024

With the current economic development in China and abroad, as well as the recent development plans in Guizhou province, the needs for high-quality Business English talents has been increasing. In order to cultivate qualified Business English talents, the practical teaching plays a crucial role. This paper aims to analyze the current problems of the practical teaching system, and with examples from Guizhou University of Finance and Economics, it proposes several effective ways to help the construction of practical teaching system for Business English majors.
Enhancing Wheat Crop Yield and Quality through Genetic Engineering Technologies: A Comprehensive Review
Authors: Waheed Usama , Naveed Muhammad
Published: January 2024

The increasing world population has created an alarming situation to meet the demand for food. Ultimately wheat yield is required to be increased proportionally to the world’s population. An estimated increase of 05 tonnes per hectare is direly needed from the current production of 3.3 tonnes by the end of 2050. To achieve this goal it is required to adopt new, emerging, and efficient breeding techniques which caused a recent breakthrough in wheat genome sequencing and provided sufficient information for the traits which are directly related to quality and yield of crops. This review provides a comprehensive overview of tools and techniques which are widely used for discovering the functionality of genes that results in specific phenotypes of Wheat. It gives a deep historical account of the development of wheat transformation techniques and provides an idea about in which way these techniques have been adapted to produce gain-of-function phenotypes through gene overexpression, loss-of-function phenotypes through the expression of antisense RNAs (RNA interference or RNAi). Recently, gene structure and expression manipulation using site-specific nucleases such as CRISPR/Cas9 for genome editing. The review summarizes recent successes in the application of wheat genetic manipulation to enhance yield, improve wheat's nutritional and health-promoting qualities, and boost the crop's resistance to various biotic and abiotic stresses. Keywords: Transformation, gene knock-Out, gene knock-In, RNAI, overexpression.
Impact of mico-seed cookies with arbuscular mycorrhizal fungi on the growth, yield, and chemical composition of Gynura procumbens
Authors: Sri Mulyati Welas , Fassah Dilla Mareistia , Kumalasari Nur Rochmah
Published: January 2024

The mico-seed cookies incorporated arbuscular mycorrhizal fungi (AMF) and functioned as an organic conditioner in the soil to enhance nutrient availability through symbiotic impact on the plant at the root system level. The aim of the research was to evaluate the effect of mico-seed cookies on the growth rate, yield, and forage chemical characteristics of Gynura procumbens. The research was conducted in a randomized complete block design with four treatments of mico-seed cookies application (a control group (without mico-seed cookies), and three groups that used mico-seed cookies with diameters of 4 cm (53 g), 5 cm (84 g), and 6 cm (130 g)). The research site was located at IPB University in Bogor, Indonesia, on soil with an acidic pH range of 3.93-4.45. The results showed that the mico-seed cookie improved the direct planting system of G. procumbens indicated by the increasing seedling rate, growth rate, and forage yield. Additionally, the mico-seed cookies triggered the bioactive compounds production. The research concluded that the application of the mico-seed cookie direct planting system to G. procumbens resulted in a statistically significant enhancement of the seedling percentage (up to 15%), colonization (up to 70%), growth rate (25-30%), yield (42-44%), and forage chemical characteristics, especially on trigger bioactive compounds. G. procumbens has potential as forage based on biomass production and high-quality nutrient, especially leaf protein content that reaches up to 25%.
The economic constraints of adopting renewable energy in farming systems
Authors: Al-Dalaeen Jawad A.
Published: January 2024

The shift to renewable energy is considered one of the policies that encourage agricultural production and preserve the environment. This paper investigates the constraints that affect the adoption of renewable energy sources in developing countries. A questionnaire was designed to collect the data. The questionnaire's validity and reliability were measured. The questionnaire was distributed on 150 farms. The relative importance index was calculated for the different constraints and the structural equation modeling was used to measure the effect of different factors on the adoption of renewable energy sources. The results showed moderate tendencies of farmers to adopt renewable energy sources. The weight of the different constraints was very close showing that legal and economic constraints were in the first position, followed by infrastructure readiness, installation costs, and maintenance requirements. Keywords: Renewable energy, economic constraints, legal constraints, installation constraints, economic returns, adoption tendencies, farm size.
Production approach model for oil palm (Elaeis guineensis Jacq) superior plant materials using artificial pollination studies
Authors: Yabani Yabani , Kuswardani Retna Astuti , Susanto Agus , Syah Rahmad
Published: January 2024

The oil palm (Elaeis guineensis Jacq.) is an annual plant that yields vegetable oil and its derivatives. Seed plays a significant role in ensuring the long-term viability of commodities in order to achieve production progress. Knowing the compatibility or incompatibility between pistils and pollen by anticipating the development of the mesocarp and the pollination factor is one of the determining factors. By increasing oil yield, disease resistance, and other desirable traits, the proposed model seeks to increase the profitability and sustainability of oil palm cultivation. The mathematical model is intended to optimize production yields by obtaining superior oil palm (Elaeis guineensis Jacq) seeds through artificial pollination studies and by identifying the science of seed origin breeding, which is based on the availability of superior seeds from crossing female flowers of Dura trees with pollen from male flowers. The systematic and sustainable propagation of Pisifera trees Urgency The construction of the model included the selection of superior mother trees with the desired traits, data collection, artificial pollination processes, monitoring and evaluation of the fertilization process, seed germination and selection of the desired seeds, and field trials to confirm performance. Experimental pollination behavior was used to identify the value of the observation test with the variety, the common mean, the influence of the variety, the effect of the interaction of the variety, and the random value of the experimental data variable test by wrapping the female flower bunches with the Dura approach to produce Tenera. Keywords: Elaeis guineensis Jacq, artificial pollination, optimization of production, palm oil, sustainability.
CAMBIO DEL EMPLEO EN SECTORES DE BASE TECNOLÓGICA EN LA RED CENTRO-NORESTE DE MÉXICO, 2015-2020
Authors: Garrocho Rangel Carlos , Chávez Soto Tania , Vilchis Mata Iván
Published: January 2024

Explicamos cuantitativamente la dinámica del empleo en sectores y empresas de base tecnológica (SBT) de la Red de ciudades Centro-Noreste de México. Las preguntas de investigación son: ¿dónde, cuánto, en qué SBT y por qué cambió el empleo en la Red, sus nodos y sus microespacios, entre 2015 y 2020? El método fue el análisis de cambio y participación espacial. Exponemos el desempeño del empleo SBT como un sistema espacio-sectorial multiescalar. Las ciudades medias son más eficientes en la producción de empleos SBT que ciudades con mayor población y empleo SBT, lo que demuestra su fortaleza económica. La Red depende del sector electrónico y fabricación de equipo vehicular. Si el sector cae, la Red se desmorona. Develamos qué región, ciudad y municipio ofrece mayores/menores ventajas competitivas, a qué tipo de empresas por sector y actividad. Sugerimos algunas líneas de política para apalancar la Red.
EMPLOYMENT CHANGE IN TECHNOLOGY-BASED SECTORS IN MEXICO’S NORTHEAST-CENTRAL NETWORK, 2015-2020
ABSTRACT
This paper offers a quantitative explanation of the employment dynamics in the technology-based sectors and companies (TBS) of the network of Central-Northeast cities of Mexico (T-MEC network). The research questions are: Where, how much, in what TBS, and why did employment change in the T-MEC network, in its nodes, and its micro spaces, between 2015 and 2020? The method was the Spatial Shift-Share Analysis. It explains the performance of TBS employment as a multi-scale space-sector system. Medium cities are more efficient in producing TBS jobs than cities with higher populations and TBS employment, which shows the economic strength. The network depends on the Electronic Sector and manufacture of vehicular equipment. If the sector fails, the network collapses. The paper reveals which region, city and municipality offers greater/less competitive advantages, to what type of companies by sector and activity. It suggests some policy lines to leverage the network.
RENEWABLE ENERGIES, ENVIRONMENT AND GDP INTERACTIONS IN LOW-INCOME COUNTRIES
Authors: Boudiaf Hafid
Published: January 2024

To determine the role of renewable energies in preserving the environment, and promoting economic growth in low-income countries, the study sampled 38 African countries, most of which belong to low-middle or low-income countries, according to the classification of the World Bank. The panel ardl approach was used on time series covering the period 1990-2019. The most important results reached were the existence of a long-term cointegration relationship between the variables, a positive contribution of renewable energies to preserving the environment, through the negative impact on CO2 emissions, in contrast to economic growth, which had a positive effect on increasing CO2. On the other hand, there was no impact of renewable energies on GDP, the reason is that these renewable energies are traditional, and used directly from their natural sources, they cannot be used in the running economic cycle, and therefore have no effect on economic growth.
INTERACCIONES DE ENERGÍAS RENOVABLES, MEDIO AMBIENTE Y PIB EN PAÍSES DE INGRESOS BAJOS
 RESUMEN
Para determinar el papel de las energías renovables en la preservación del medio ambiente y la promoción del crecimiento económico en los países de bajos ingresos, este estudio tomó una muestra de 38 países africanos, la mayoría de los cuales pertenecen a países de ingresos medios-bajos o bajos, según la clasificación del Banco Mundial. Se utilizó el método ardl de panel en series temporales para el periodo 1990-2019. Los resultados más importantes muestran la existencia de una relación de cointegración de largo plazo entre las variables y una contribución positiva de las energías renovables en la preservación del medio ambiente, a través del impacto negativo en las emisiones de CO2, en contraste con el crecimiento económico que tuvo un impacto positivo en el aumento de CO2. Por otro lado, no hubo ningún efecto de las energías renovables en el PIB, la razón es que éstas se utilizan directamente de sus fuentes naturales por lo que no pueden usarse en el ciclo económico en curso y, por tanto, no tienen ningún efecto sobre el crecimiento económico.
DETERMINANTES DE LA PROBABILIDAD DE PÉRDIDA ECONÓMICA EN EL SECTOR AGROPECUARIO MEXICANO
Authors: Basurto Hernández Saúl , Galván Vargas Sandra
Published: January 2024

El objetivo de este artículo es estimar un modelo de elección discreta para identificar los determinantes de la probabilidad de pérdida económica en el sector agropecuario mexicano. Para ello, empleamos información de 64 548 unidades de producción que reportan sus ingresos y gastos en la Encuesta Nacional Agropecuaria. Utilizando la ubicación de las parcelas, vinculamos los ingresos netos con el clima de corto y largo plazo, características de las parcelas, acceso al agua y mercados, y características sociodemográficas de los productores. Los resultados indican que el 45% de los productores registran pérdidas. Dicha probabilidad suele ser más alta cuando el(la) productor(a) es mujer, se reconoce como indígena, tiene pocos años de educación, usa yunta, la cantidad de tierra utilizada es menor, sus tierras son de temporal o ejidales o se encuentran a una gran altura sobre el nivel del mar.
DETERMINANTS OF THE PROBABILITY OF ECONOMIC LOSS IN THE MEXICAN AGRICULTURAL SECTOR
ABSTRACT
The purpose of this article is to estimate a discrete choice model to identify the main factors influencing the probability of getting losses in agriculture. To do that, we use data on 64,548 farms reporting revenues and costs in the Encuesta Nacional Agropecuaria. Using the location of each parcel within the farm, we match net revenues with long-term climate, short-term weather events, soil types, plot characteristics, water access, market access, and sociodemographic characteristics. The main results indicate that 45% of farms in the sample observe negative net revenues. Overall, the probability of getting losses increases when the farmer is a woman, recognizes himself as indigenous, has less education, uses oxen, uses less land (small-sized), has rainfed land, has ejidal land, or his agricultural fields are at high levels of altitude.
EVALUACIÓN DE LA ESTRUCTURA PRODUCTIVA A TRAVÉS DEL VALOR AGREGADO
Authors: Landa Arroyo Yuri
Published: January 2024

Esta investigación tiene como objetivo evaluar el papel de la manufactura en la modernización de la estructura productiva de una muestra de 66 países de ingresos bajos, medianos y altos, con datos de las tablas insumo-producto internacionales de la OCDE. A diferencia de otros autores, calculamos el valor agregado en la demanda final para obtener el índice de complejidad económica, incluyendo todas las actividades productivas y no sólo las transables. Con el método generalizado de momentos evaluamos el efecto sobre la complejidad de variables que representan el crecimiento de la economía mundial, la dotación de recursos naturales, entre otras. Así, constatamos que la industria manufacturera continúa siendo el principal impulsor del cambio estructural, al mismo tiempo que se ha establecido una relación de alta complementariedad entre el valor agregado importado y local en la manufactura en general y en los bienes de capital en particular.
AN ASSESSMENT OF THE PRODUCTIVE STRUCTURE THROUGH VALUE ADDED
ABSTRACT
This research aims to assess the role of manufacturing in modernizing the productive structure of a sample of 66 low, middle, and high-income countries based on the OECD’s international input-output tables. Unlike other authors, we use value added in final demand to calculate the economic complexity index to cover all productive activities, not just tradable ones. Using the generalized method of moments, we assess the effect on complexity of variables representing global economic growth, natural resource endowments, among others. Thus, we find that the manufacturing industry remains the main driver of structural change, while a highly complementary relationship has been established between imported and local value added in manufacturing in general and in capital goods in particular.
Performance Enhancements and Modeling of Photovoltaic Panel Configurations During Partial Shading Conditions
Authors: EL iysaouy Lahcen , LAHBABI Mhammed , OUMNAD Abdelmajid , AZEROUAL Mohamed , BOUJOUDAR Youness , Saad El Imanni Hajar , ALJARBOUH Ayman , FAYAZ Muhammad
Published: January 2024

The growing focus on solar energy has led to an expansion of large solar energy projects in the world. Though the most widely adopted Total Cross Tie (TCT) interconnection patterns will reduce the loss of mismatch, the appearance of shades in large-scale photovoltaic arrays drastically decreases the output power as well as several peaks of power in the P-V characteristics. To overcome these problems, the PV panels are organised using either electrical or physical reconfiguration methods. In this respect, it has been established that physical relocation methods are both cost-effective and efficient to disperse the shadow. In this context fits this work, his goal is to study the magic square view (MSV) for the physical rearrangement of the PV module in a TCT scheme. The simulation results reveal the effectiveness of the MSV method efficiently scattering the shade over the whole photovoltaic array. For validation, four types of Partial Shading Conditions (PSCs) patterns are considered and are then compared with the TCT and the recently proved Competence Square (CS) techniques: Short and Wide (SW), Long and Wide (LW), Long and Narrow (LN), and Short and Narrow (SN) shading patterns. Overall, MSV method is important in achieving improved output power enhancement of PV array under shaded conditions. A very clear improvement is obtained in the Long and Wide partial shading pattern.
Absorber Layer Thickness as a New Feature in Statistical Learning Tools of Perovskite Solar Cells
Authors: Velez Sanchez Jeisson Emilio , Botero Londoño Monica Andrea , Sepulveda Sepulveda Franklin Alexander , Otalora Bastidas Camilo Andres , Camacho Parra Cristian David
Published: January 2024

In the last decade, the development of perovskite-based solar cells has emerged as a technological alternative for the photovoltaic generation with a higher efficiency/cost ratio. Many contributions have been made in recent years, as evidenced by many academic publications with worldwide experimental results in this area. Machine learning as a tool can support the development of this technology by predicting new materials, novel solar cell configurations, and evaluating the most relevant experimental parameters, among others.  For this, the automatic learning models used in predicting or classifying the information available in the literature or generated experimentally must be improved. One way to improve these models is by including new descriptors that allow improving the prediction. In this work, we evaluated the use of the absorber layer thickness as a descriptor in a linear regression model using a database of 221 literature records containing information on the bandgap, the ?HOMO (perovskite-HTL), and ?LUMO (perovskite-ETL) of different perovskite cells, together with the thickness of the absorber layer.  By building two multiple linear regression models, including or not the thickness of the absorber layer, a reduction in the root mean square error RMSE of 4.4% and 2.8% was found in the prediction of the Jsc and PCE, respectively. By applying a linear regression model, an improvement in the prediction of Jsc can be seen due to the inclusion of thickness as a descriptor, which is in line with the relatively high value of the mutual information measure between thickness and Jsc.
Microstructural analysis of cracked steam drum plate during fabrication process
Authors: Peeratatsuwan C. , Yingpaiboonsukh P. , Chowwanonthapunya T.
Published: January 2024

The understanding in the fracture mechanisms of the steel plate cracked during the fabrication is of paramount importance for the improvement of the fabrication process for the pressure-containing vessels like steam drum. This article presented the microstructural analysis of the fractured steam drum plate during the fabrication process. The analysis involved visual inspection, chemical analysis, micrograph study, tensile test, and impact test. Results exhibited that the failure of the steel plate was related to the brittle fracture, initiated from the notch, and propagated in the transverse direction perpendicular to the rolling direction. The formation of martensite was found in the affected area, which lowered the crack resistance of the steel plate. The cold worked conditions of the steel plate were induced by the pre-bending process and subsequently facilitated the fracture propagation. It is advised to conduct grinding process to remove the notch and the heat affected zone. Warming the steel plate to be significantly above 0oC is also suggested to perform prior to the fabrication process.
Leveraging Artificial Intelligence in Image Processing: A Comprehensive Exploration
Authors: Dutta Rohan
Published: January 2024

Abstract: The integration of Artificial Intelligence (AI) in image processing has significantly transformed the field of computer vision and visual information analysis. It examines the transformative impact of AI technologies in computer vision, image recognition, and image generation. This report also addresses the challenges and considerations associated with AI in image processing, while highlighting the potential for innovation and advancement in this rapidly evolving field.
Radial compression strength can predict the hydraulic vulnerability of mature Norway spruce sapwood
Authors: Rosner Sabine , Luss Saskia , Konnerth Johannes , Kunert Norbert
Published: January 2024

Hydraulic testing of isolated sapwood from mature tree trunks is time-consuming and prone to errors, whereas the measurement of compression strength is a standardized and rapid wood technological application. In this study, we aimed to analyze if compression stress perpendicular to the grain relates to hydraulic vulnerability of mature Norway spruce (Picea abies) trunk wood with an expected narrow vulnerability range. The sample-set comprised 52 specimens originating from 34 trees harvested in Sweden. Before mechanical testing, the P50, i.e., the water potential resulting in 50 % of hydraulic conductivity loss, was estimated on small sapwood beams employing the air injection method. Compression strength perpendicular to the grain was defined as the first peak of a stress-strain curve (peak stress) when the wood is subjected to radial compression. Peak stress ranged between 1,65 MPa and 5,07 MPa, P50 between -2,98 MPa and -1,98 MPa. We found a good correlation between the peak stress and P50 (r = 0,80; P < 0,0001). This provides further evidence that peak stress in radial compression and P50 are both extremely dependent on the characteristics of the “weakest” wood part, i.e., the highly conductive earlywood. We conclude that the radial compression strength is a good proxy for P50 of mature Norway spruce trunk wood.
Исследование случаев соответствия “послелог – послелог” на разных временных срезах монгольского языка (на материале текстов XIII, XVII и xx вв.)
Authors: Б Баяржаргал
Published: January 2024

In the article, based on the material of written monuments of different time slices of the KhalkhaMongolian language, cases of correspondence “postposition-postposition” are considered, and an attempt is made to quantify one or another postposition in each of the texts under consideration. As illustrative material, tables, diagrams, and graphs are given with examples of postpositions found in texts of the 13th, 17th, and 20th centuries. Based on the analyzed data, a conclusion is made about the trend of the linguistic development of the Mongolian language.
Дарба Бандида гэгээнтэн хийгээд “Ард түмний ариун ёс оршив” бүтээлийн тухайд өчүүхнийг нэмэрлэхүй
Authors: Агваан Пүрэвжанцан
Published: January 2024

The wise Agvaanchoijirdondov Saint Darba Bandida of Ar Khalkha was born in a poor family, in an early age lived with his mother and grandfather, later he received the extraordinary destiny of a Saint. In his work named “Sacred Culture of folks” he wrote about living in peace and harmony, the authorities should be trustworthy and avoid lies and stealing, rules of governing, and how to lead the newly established people’s state. These great preachings are still valuable even today.
Algorithm for calculating the problem of unilateral frictional contact with an increscent external load parameter
Authors: Popov Alexander N. , Lovtsov Alexander D.
Published: January 2024

The subject of the study is the contact interaction of deformable elements of linear complementarity problem (LCP). To solve the linear complementarity problem, the Lemke method with the introduction of an increasing parameter of external loading is used. The proposed approach solves the degenerated matrix in a finite number of steps, while the dimensionality of the problem is limited to the area of contact. To solve the problem, the initial table of the Lemke method is generated using the contact matrix of stiffness and the contact load vector. The unknowns in the problem are mutual displacements and interaction forces of contacting pairs of points of deformable solids. The proposed approach makes it possible to evaluate the change in working schemes as the parameter of external load increases. The features of the proposed formulation of the problem are shown, the criteria for stopping the stepwise process of solving such problems are considered. Model examples for the proposed algorithm are given. The algorithm has shown its efficiency in application, including for complex model problems. Recommendations on the use of the proposed approach are given.
Medicine as a profession in the writer’s self-determination: the example of A.P. Chekhov (1860-1904) and J. Rizal (1891-1896)
Authors: Lipke Stephan
Published: January 2024

The attitude of A.P. Chekhov, physician and writer, and of his contemporary Filipino colleague J. Rizal was compared, in order to find out how their artistic creativity is linked to their profession as doctors. Both writers demonstrate a high appreciation for progress in their works. Chekhov emphasizes the importance of hygiene and education, while Rizal believes that education is crucial. In his works, Chekhov often depicts the consequences of ignorance, negligence towards one’s health, and lack of hygiene. In particular, in the story “Peasants” he describes how poverty leads to drunkenness, filth, and ignorance. However, he is not willing to directly connect social and political statements with his art. Additionally, after his voyage to Skhalin, he firmly refuses to pass judgement on his characters, even if they are portrayed as dirty and ignorant. Nonetheless, in his social activism he cares for the sick, especially victims of epidemies, and establishes rural schools. Rizal became an ophthalmologist to cure his mother, who went blind after unjustly being imprisoned; similarly, he became a writer to heal the “social cancer” of his country - ignorance. Yet, he encounters the problem that Spanish authorities prohibit education for the people. So, even up to his exile and death, he has to confront the dilemma of which should take precedence, education or liberation. Therefore, for Chekhov, being a doctor, addressing social issues, and writing are separate spheres, while Rizal became a writer primarily to heal his country’s society. Nevertheless, both writers, in their short lives, combined medicine, creativity, and progressive social activism, thus embodying what Yu.M. Lotman calls “lifebuilding”.
Restoration of time: Henry Bergson and Vladimir Nabokov
Authors: Berezhnov Denis A. , Ledevev Alexander V.
Published: January 2024

The purpose of the study is to interpret the idea of “restoring time”, common to the texts of the Russian writer Vladimir Nabokov and the French intuitionist philosopher Henri Bergson. The concept of “restoration of time” in Vladimir Nabokov’s texts, viewing it through the lens of Henri Bergson’s philosophy is explored. According to Nabokov “time is essentially memory in the process of its unfolding”. Moreover, that memory itself is a dynamic and never-changing process. Therefore, the conventional notion that restoring the past is simply about retrieving previous “moments” does not hold true in Nabokov’s approach. As a result of studying the phenomenon, it is concluded that in Nabokov’s system the restoration of time (the past) should become the restoration of the very movement of our memories, constantly “flowing” to the present. The reconstruction of time (the past) should focus on capturing the very movement of our memories, which continuously flow from the past to the present. Bergson referred to this movement as the basis of “pure memory” phenomenon, understood as the constant pressure of memories on the present and as the essence of “duration”: genuine inner time, that cannot be divided into moments, but rather is an uninterrupted ever-growing stream of our impressions. Thus, the Bergson’s philosophy effectively addresses numerous Nabokovian issues, both peripheral and central.
Micro movie from cinemas to online video platforms: terminology issues
Authors: Litvintsev Alexey E. , Proskurnova Evgeniya L.
Published: January 2024

A comprehensive study of the phenomenon of microcinema is presented. The tasks of semantic analysis of the concept of “microcinema” are set and solved, its characteristic features are discovered and, on the basis of the results obtained, an actual definition of the term is proposed for the first time; it is revealed on which screens the ultra-short meter exists today. The hypothesis that ultrashort films as a phenomenon cannot be fully considered as a product of the digital era is substantiated, this form inherits classical cinema, although it’s presented to the audience at other, modern venues. This problem is considered in view of the widespread interpretation of the term “microcinema” as a format that arose in the 21st century in the network space. As the main difference from various kinds of ultra-short audio-visual content posted online, the focus of micro movie on the coverage of philosophical, life problems, the search for new meanings, the demonstration of the author's views on existential issues is indicated. As a result of studying the filmography of reputable international film festivals, this assumption is confirmed. The boundaries of the timing of ultrashort films are revealed, for which the requirements put forward by specialized microcinema festivals to authors are investigated.
Creative industries: visualization of communications and aestheticization of media forms
Authors: Urazova Svetlana L.
Published: January 2024

The improvement of innovative technologies has a direct impact on the social space and media market, forcing media producers to update and increase their competences and skills in line with the requirements of the digital age. This is due to the emergence of new professions in media content production, as well as to the recognition of the growing creative and economic potential of creative industries. The aim of the research is to show the relationship between the media industry and the creative industries in the context of their humanitarian contribution to the development of the digital future. The method of selective reading and commenting on sources from different sciences - philosophy, psychology, culturology, semiotics, art history, media communication studies - is used. It is revealed that the introduction of IT-technologies in media production and the adaptation of media in the digital economy make it necessary to revise approaches to the study of humanities and develop a theory of media taking into account the application of interdisciplinary knowledge. It is also concluded that visualisation through the actualisation of imagination is important. In the information environment, the need for visualisation of communications and aestheticisation of modern media forms related to the cultural and historical horizon of the digital age is now prevailing. These aspects are also substantiated, emphasising the importance of the role of creative industries in the digital future, their economic and humanitarian components, which allow society to be imbued with the axiological paradigm of the new reality.