bluuebunny/crossref_metadata_2025 huggingface dataset:
LOS RETOS DE LA CALIDAD EN SALUD; LOS SISTEMAS DE GESTION Y OTRAS REFLEXIONES
Authors: Torres malagon ROSSY PAOLA
Published: October 2024

Dado que existen múltiples definiciones sobre calidad de la atención en salud; simultáneamente también existen diversos enfoques y sistemas para su medición y gestión. Uno de los principales conceptos y enfoques, es el de la calidad como atributo cualitativo y multifactorial de los servicios de salud. Esto quiere decir que la calidad, por si misma, constituye un reto para los sistemas de gestión, toda vez que el proceso de medición, ha de involucrar los componentes tanto subjetivo como objetivo de la misma. Por su parte; pretender gestionar y evaluar los componentes por separado ha ocasionado problemas de tipo organizacional y estratégico al interior de las instituciones.  Para poder gestionar y evaluar la calidad; los sistemas deben tener total claridad conceptual, metodológica e instrumental. Esto es, la estandarización de los conceptos que se emplean al referirse a la calidad y a sus atributos, que componentes o dimensiones se evalúa y por último que instrumentos se utilizan para medirla.  En la actualidad, existen sistemas de gestión con modelos de mejoramiento continuo y de garantía de la calidad. Sus enfoques varían según el tipo de reconocimiento, que puede ser, la acreditación, la certificación y la evaluación. Esto hace que las instituciones de salud, puedan definir bajo qué sistema quieren operar y aún más importante; que calidad van a garantizar en el proceso de atención en salud. En este mismo sentido, los desafíos de la calidad en salud y los sistemas de gestión, pueden ir desde los estándares para la evaluación, los mecanismos para la garantía de la misma, y los resultados que se obtengan de aplicar los diferentes abordajes que esta tiene. Por su parte, el sistema nacional de salud colombiano, propone un modelo de mejoramiento continuo, basado en la gestión y evaluación de los procesos. Esto quiere decir que a partir de la definición de los procesos que se consideran prioritarios, se establecen las evaluaciones y los respectivos planes de mejoramiento a fin de generar un ciclo continuo de calidad. Por su parte, el actual sistema de calidad en salud colombiano, aunque ha permitido generar cambios positivos en la prestación de los servicios; los mismos, no son suficientes para garantizar servicios con niveles de calidad óptimos. Es evidente que existen amplias brechas entre lo planeado y los resultados obtenidos en salud. Por esto; es vital que las instituciones prestadoras y demás actores que conforman el sistema de salud nacional, aborden la calidad, más allá del requisito normativo y lo asuman como una cualidad imperativa e inherente a los servicios en salud; no solo para obtener un reconocimiento social, sino que, además, sea parte de la responsabilidad social que las instituciones, tienen para con sus usuarios, sus colaboradores y sus comunidades.  Palabras Clave: Calidad en salud, Sistemas de gestión, mejoramiento continuo, garantía de la calidad, procesos
Correlation relationships of processes in the combustion engine in the RDE test
Authors: Sordyl Adam , Chlopek Zdzislaw , Merkisz Jerzy
Published: October 2024

The article presents considerations on the processes taking place in the combustion engine in the in real driving operating conditions of a vehicle performing the RDE (Real Driving Emissions) test. The tests were carried out using a passenger car with a spark-ignition engine. The processes considered in the article were related to the engine operating states, exhaust emissions and fuel consumption, and the vehicle speed, which determines the engine operating conditions. The RDE test were carried out using PEMS (Portable Emissions Measurement System) equipment, and the following variables were recorded: vehicle speed, control, rotational speed, relative torque and relative engine power, emission pollutant intensity of: carbon monoxide, hydrocarbons, nitrogen oxides and carbon dioxide, the intensity of particle number and the fuel consumption intensity. The recorded signals were digitally processed, and the statistical properties of the variables and the mutual relation between the engine operating states were examined. The properties of the measured variables were investigated in the entire RDE test and in its constituent phases: the first, corresponding to vehicle movement in cities, the second – outside cities, and the third – on highways and expressways. The pollutant specific distance emission and the particle number specific distance as well as the specific distance fuel consumption were determined in relation to the average vehicle speed, and based on these results, the exhaust emissions and fuel consumption characteristics were created. Correlational studies of the considered variables were also performed. Pearson's linear correlation coefficients for the measured variables combinations were determined.
RAMAYANA: THE WORLD'S MESSAGES TO EVERY MANKIND
Authors: Mandal Ram Krishna
Published: October 2024

ABSTRACT
The Ramayana influences Indian culture, literature, and art. Its teachings continue to inspire millions around the world. In the Indian context, Ramayana and Mahabharata are the most cited texts on indigenous approaches to international relations. Objective: The article examines some of the pertinent themes from Valmiki's epic Ramayana, which remain relevant and even prescient to international relations in the contemporary era. Methods and Materials: This study uses a qualitative approach and is primarily descriptive, drawing on secondary data for its design. Results and Discussion: Anger and revenge do not bring any good; they do not allow us to move on to better things. Lord Rama and Sita were kind to all. They even forgave Kaikeyi, Rama's stepmother, the one responsible for sending him into exile. Findings: Lord Ram epitomized the adherence to dharma, the righteous way of living. Dharma (righteousness) is more important than any divine boon.  Conclusion: It is the duty of every parent to raise their kids with affection and care and to instill in them the values of courage, discipline, respect, and deference to elders.
NATION’S RESURGENT CULTURE THROUGH THE LESSONS OF ‘RAMAYANA’
Authors: Mandal Ram Krishna
Published: October 2024

People are focusing more of their time and energy on achieving economic freedom, probably as a result of commercialization and other so-called development agendas. We are on the verge of giving up all of our ethics and principles in the rush to make large profits quickly. Ancient epics such as the Mahabharata and the Ramayana have the unwavering power to change people's computerised lives in the present era. Our appearance never deviates from our objectives since our lives are centred around achieving our unique aspirations. We need the guidance of such great individuals as Lord Ram or Lord Krishna in this situation. Objective: The study is to seek how to restore the resurgence of our rich culture through the lessons of Ramayana. Methods and Materials: The information is gathered from secondary sources of ancient Indian knowledge, including texts like the Ramayan, articles, websites, and online journals published over time. Result and Discussion: In addition to discussing the meaning of life, ‘The Ramayana’ is regarded by the Indian populace as a traditional and sacred text that imparts knowledge, wisdom, and the spiritual meaning of life. However, this tale offers numerous life lessons that apply to a range of circumstances and are suitable for everyone.  Findings: One of the oldest books in Bharatiya history, the Ramayana is significant regardless of age, social status, sex, or level of income. Its significance has been acknowledged in many contexts and disciplines, such as politics, history, morality, and otherworldliness. Conclusion: The entire family can enjoy and learn a lot about their roles from the epic Ramayana. With stronger ties between families and society as a whole, the Ramayana can assist us in reestablishing those multigenerational family values.
DEMOGRAPHIC TRANSITION IN INDIA SINCE 1951: A CRITICAL ANALYSIS
Authors: Mandal Ram Krishna
Published: October 2024

The Indian state has no official religion. No religion is granted any particular position under our Constitution. The rights to profess, practise, and promote any religion—or to practise none at all—are guaranteed to all persons and groups under the Constitution. The goal is to examine the demographic shift of Hindus and Muslims in India since 1951. Method and Materials: The data used in this descriptive analysis come from secondary sources.  Basic numerical calculations have been carried out here in addition to graphical representations. Result and Discussion: The Muslim community in India made up around 14.23% of the total population as per the 2011 Census. This percentage was far higher than the national average in a number of states, with the Union Territory of Lakshadweep, West Bengal, and undivided Jammu & Kashmir having the greatest concentration. Mathematical calculation proves on the basis of census data that after 237 years or before that, the population of Hindu will be equal to the population of Muslim and Bharat will approach towards Muslim country if it is going as it is and migration of Muslim is not stopped. Findings: In India, Islam is the religion that is expanding quickest. The census-wise percentage curve for Muslims is growing and upward sloping, whereas the curve for Hindus slopes downward. At a specific census, the two curves will intersect, signifying that the number of Hindus and that of Muslims will be equal. Suggestions: Immediately establish a Population Control Bill to limit the number of children per couple to one. Migration of Muslims for permanent settlement in Bharat should be stopped immediately. Conclusion: Encouraging sustainable development necessitates for stabilization of population growth. India's population is still a complicated subject that has to be carefully considered and effectively addressed by policy.
A Independência do Brasil no seu Bicentenário
Authors: Slemian Andréa , Santirocchi Ítalo Domingos , Bastos Pereira das Neves Lucia Maria
Published: October 2024

O texto analisa como a Independência do Brasil foi tratada no seu Bicentenário no ano de 2022, por meio de dois caminhos que consideramos convergentes: um primeiro, que faz considerações sobre o estado da arte da historiografia sobre a independência nas últimas décadas até o ano passado; um segundo, por meio da análise do momento de 2022 a partir do levantamento das aparições sobre o tema nas mídias digitais - especificamente os canais do YouTube existentes entre setembro de 2021 e dezembro de 2022. Defenderemos aqui como o ambiente político altamente polarizado no ano de 2022 marcou o espaço de enunciação dos discursos sobre a independência. Ver-se-á como a ascensão definitiva do uso das novas mídias como forma de comunicação, bem como a força com que as pautas políticas reivindicatórias ganharam a cena de oposição política, foram definidoras para percepção das novidades e limitações dos discursos sobre o tema. Ainda que a comunidade historiadora tenha que conquistar mais espaço na cena pública, a renovação dos estudos da historiografia em curso desde finais do século XX foi, e segue sendo, fundamental na difusão dos saberes críticos sobre seu proceso.
Bridging the Gap: Use of Mental Health Apps in the Adolescent Population
Authors: Costa Eduarda , Henriques Miguel
Published: October 2024

N/a.
The Economic Powerhouse: Corporate Profitability and Growth from the 19th to the 21st Century
Authors:   , Babirat Christian
Published: October 2024

Three research projects are at the core of this thesis. Their common point of departure is the seminal paper by Alfarano et al. (2012), in which the authors analyze the statistical and distributional patterns that characterize profitability of corporations in the U.S. during the years 1980 to 2011. They find the profitability of competitive corporations, measured by their return on assets (ROA), to be best described by a stationary diffusion process comprising a deterministic mean-reverting tendency and stochastic noise. The parameters of the process then are the median (location) and mean deviation from the median (dispersion) of the profit rates of the overall population of competitive firms and a firm-specific diffusion constant. In this thesis, we find this process to describe the statistical behavior of profit rates in very different countries and very different time periods. Time-series and cross-sections of profit rates fall onto Laplace distributions for the U.S. between 1863 and 2013 (chapter 3), for Germany between 1919 and 1944 (chapter 4) as well as 45 countries around the world between 1983 and 2013 (chapter 5). So profit rates display qualitatively the same statistical behavior, culminating in the Laplace distribution of profit rates, across time and space. Significant departures from the distribution are transitory and only occur under exceptional circumstances, such as severe economic depressions or wartime. Quantitative differences in the parameter values, however, appear persistently across countries, potentially being the result of country-specific characteristics like the legal system. Thus, departures from the distribution mark exceptional economic conditions and severe distress while different parameter values seem to be the result of country-specificities. Overall, profitability qualifies as reliable vital signs of the economy with robust statistical patterns across space and time. Departures from these statistical patterns then carry substantial information about the potential length and severity of crises.
Del telégrafo a la app: la evolución y el estado actual de los prestadores de remesas desde los Estados Unidos hasta México, ca. 1980-2020
Authors: Bátiz Lazo Bernardo , González Correa Ignacio
Published: October 2024

Este artículo ofrece una primera aproximación a la evolución de la estructura y los participantes en el mercado de remesas del corredor entre los Estados Unidos y México. Identificamos tres diferentes capas en la estructura y especificamos los agentes que involucran a clientes, proveedores de remesas (“remesadoras”) y bancos corresponsales para 1980-2024. Mostramos las limitaciones estructurales del mercado y sugerimos cómo la economía digital y la tecnología financiera (fintech) podrían ayudar a reducir el costo medio de los pagos transfronterizos. Los beneficios potenciales de las fintech para el mercado de remesas son especialmente relevantes para México, ya que el país tiene una alta proporción de población no bancarizada. Además, la reducción a 3% de las tarifas de remesas se ha definido como uno de los Objetivos de Desarrollo Sostenible de las Naciones Unidas para 2030. Una comprensión mejor y más profunda de las características de este mercado podría ayudar a lograr tal objetivo.
Informalidad y trabajadores pobres en Argentina (2003-2023)
Authors: Poy Santiago
Published: October 2024

El objetivo de este artículo es analizar la relación entre la pobreza de los trabajadores y la informalidad, a partir del caso argentino de las últimas dos décadas. Se examina el efecto neto de la informalidad laboral sobre la pobreza monetaria, así como en qué condiciones laborales, sociodemográficas y familiares la informalidad se asocia más intensamente con la pobreza. Se utilizan microdatos de la Encuesta Permanente de Hogares del Instituto Nacional de Estadística y Censos (INDEC), y se aplican microsimulaciones y análisis multivariados. Los resultados muestran que la informalidad es un componente estructural del mercado de trabajo urbano y que su efecto neto es relevante y sostenido en el tiempo. Sin embargo, también se revela que la relación entre informalidad y pobreza no es sencilla: la mayor parte de las inserciones informales no están directamente vinculadas con las privaciones económicas. El riesgo de pobreza entre ocupados informales se explica no sólo por las características de sus ocupaciones, sino también por características sociodemográficas, las tasas de dependencia en sus hogares y la baja capacidad de protección de las prestaciones sociales.
El trabajo informal en los Estados Unidos: informalización, inmigración y emprendimiento en el trabajo
Authors: Tilly Chris
Published: October 2024

El trabajo informal —es decir, el trabajo que por lo demás es legal pero no está protegido por las leyes laborales estándar ni los programas de seguridad social que cubren el resto del trabajo— está muy extendido en los Estados Unidos, y la informalización —o sea, el desplazamiento del empleo hacia la informalidad— aún más. Estimaciones recientes de la participación en el trabajo “extraoficial” alcanzan a 36% de la población adulta, y dos tercios de una muestra de trabajadores con salarios bajos habían experimentado violaciones de la legislación laboral en la semana anterior. El empleo informal representa sobre todo a los migrantes trasnacionales. Las acciones de múltiples actores contribuyen a éste. Los empresarios estadunidenses participan en la informalización mediante la “fisuración” de los empleos, al dividirlos en estatutos menos protegidos. Los gobiernos nacionales, regionales y locales del país contribuyen a configurar el grado de informalización mediante la aplicación (o su falta) de la legislación laboral, las políticas sobre migración y otras acciones. Los grupos de trabajadores vulnerables recurren al empleo informal o al autoempleo como estrategia de supervivencia, mientras que los trabajadores más acomodados se autoemplean para ganar autonomía, flexibilidad o autorrealización. Las respuestas colectivas y organizativas de grupos de trabajadores, principalmente mediante organizaciones de la sociedad civil conocidas como “centros de trabajadores”, han ido en aumento. Este artículo ofrece una revisión exhaustiva y un debate conceptual de lo que sabemos sobre el trabajo informal en los Estados Unidos.
Crystal Structure Parameter Analysis of Reduced Graphene Oxide (rGO) from Coconut Shell Charcoal
Authors: Hikmah Utiya , Azizah Aghea Tahta Wahyu , Hastuti Erna
Published: October 2024

In this research, reduced graphene oxide (rGO) material from coconut shell charcoal was synthesized using the modified Hummer method. The reduction process of Graphene Oxide (GO) to rGO uses the reducing agent L-Ascorbic Acid (LAA) and is assisted by microwave radiation. The samples obtained were then characterized using XRD to analyze the crystal structure parameters of the rGO samples obtained. Based on the XRD results, the data obtained was then analyzed using the Scherrer and modified Scherrer equations to determine the crystal size in the sample. In addition, the Williamson-Hall equation is also used to analyze crystal size and lattice strain. This article also analyzes XRD data using the Rietveld method using Rietica software. The output from the Rietica software obtained lattice parameter values a ≠ b ≠ c and angle α = β = γ = 90° which indicates an orthorhombic crystal lattice structure. In the refinement process, Rietica's software affects the suitability parameters in the form of R and GOF indicator values. The sample obtained was also measured for the electrical conductivity value of the rGO sample using an LCR meter.
Effect of Gamma Irradiation (Cesium-137) on the Properties of Chemical Functional Groups from Collagen Extraction of Snakehead Fish Scales (Channa striata)
Authors: Ferdianti Andi Tasya , Fuadi Nurul , Fitriyanti Fitriyanti , Abidin Kurniati , Jumardin Jumardin , Isradiati Dwi Febri
Published: October 2024

This study aims to determine the absorption spectrum of the functional groups of snakehead fish scale collagen before irradiation and the effect of the dose of Cesium-137 irradiation on the functional groups in snakehead fish scale collagen. The extraction method used is acid extraction. Measurement of the absorption spectrum of collagen samples from snakehead fish scales using an FTIR spectrophotometer. Samples were irradiated using doses of 10 mGy, 30 mGy and 50 mGy. The results of the functional group values before irradiation produce amide A, amide I, amide II and amide III which fill the absorption area of the functional group. The results of the functional group values produced after irradiation for a dose of 10 mGy produced amide I, amide II and amide III which filled the absorption area. Amide A and amide B do not fill the absorption region at a dose of 10 mGy. Doses of 30 mGy and 50 mGy produced amide A, amide I, amide II and amide III which filled the absorption area. Amide B did not fill the absorption area at doses of 30 mGy and 50 mGy. Amide groups that are not detected or do not meet standard collagen functional group standards can be caused by the chemical composition of the fish scale extraction process.
TRANSPORT LOGISTICS AND WORKFORCE QUALITY: EVALUATING ACCESSIBILITY AND HUMAN RESOURCE QUALITY IN SELECTED NIGERIAN ORGANIZATIONS
Authors: ADEREMI Helen Olubunmi , ODESOLA Olusegun Timothy , NWIZU Chukwudalu Daniel
Published: October 2024

This paper investigated how transport services affect the quality of work in selected organizations in Lagos Nigeria. As one of the most populous cities in Nigeria, Lagos deals with unique transport issues that impact the productivity and wellbeing of its workforce, with the region’s dynamic urban landscape that creates challenges and opportunities in the transportation system. A survey design was employed to gather data from 402 employees of the selected organizations sampled from a population of 6150 using research advisor. A structured questionnaire was employed to bring together the data for the study via random sampling technique. Descriptive and inferential analyses which included frequencies, percentages, mean, standard deviation and regression analysis were used to analyse the data. The findings revealed that availability of transport logistics services (t = 5.837, β = 0.313, ρ ≤ 0.05) had positive and significant effects on access to quality workforce, and reach to quality suppliers (t = 6.438, β = 0.308, ρ ≤ 0.05) significantly affects Cost of Transport logistics. On the overall, transport services in the study areas had a positive and significant effect on the quality of work in Lagos state, Nigeria. This study concluded that the quality of work in Lagos, Nigeria is significantly predicted by transport services. Hence, there is a need to strengthen the transport services so as to improve access to quality workforce, and the cost of transport.
Analysis and Design of UI/UX Models for Elderly Users in Digital Agricultural Business Transformation
Authors: Madawara Herdin Yohnes , Sembiring Irwan , Kristianto Budhi
Published: October 2024

Digital agriculture faces challenges, namely in integrating Elderly People (SENIORS) in digital transformation. The purpose of the study is to analyze and design UI/UX models according to user needs, expectations, and challenges. The method used is the Design Thinking approach which begins with literature study, then interviews are conducted to identify problems faced by users, and analyze the need to determine problem priorities. UI/UX prototypes are carried out to design solutions that suit user needs, and evaluations are carried out to collect user feedback. The data is assessed through the System Usability Scale (SUS) approach to appraise the designed user interface (UI). The evaluation results showed a "good" rating based on the SUS category, with a final average score of 74,391, so that the solutions designed meet usability standards for SENIORS users in the context of digital agriculture. Thus, the research carried out contributes to increasing the effectiveness and adoption of SENIORS in digital agriculture, as well as by designing user-friendly UI/UX models, making an important step towards inclusive and sustainable digital agriculture.
Organizational Resilience of Intimate Partner Abuse Nonprofits During the COVID-19 Pandemic
Authors: Bomsta Heather , Kerr John
Published: October 2024

Nonprofits often function as a key part of the social safety net by providing services to vulnerable populations and strengthening communities. Despite their essential nature, research on organizational resilience (OR) among nonprofits tends to focus on surviving financial distress, while other organizational aspects of resilience are less emphasized. Finding few nonprofit OR models that address our research context, we adapt and extend a model of OR from the for-profit sector. Our model adaptation includes technical, social and financial resources and expands each category to cover unique aspects of nonprofits that the for-profit OR model does not contain. We also borrow concepts from social-ecological resilience (SER) to enhance our nonprofit-adapted OR model, which we test using a case study of intimate partner abuse (IPA) agencies. We examined eight IPA nonprofits in a Midwestern state during the COVID–19 pandemic, interviewing both managers and frontline staff. We hope our adapted model can be used by researchers and practitioners to better understand and evaluate OR not only in IPA agencies, but all nonprofits.
Geospatial fish consumption patterns and paradigmsin Odisha State, India
Authors: Salim Shyam S , S. S. Raju  , N. R. Athira  , Roul Subal Kumar , Patnaik Phalguni , Edward L. Loveson
Published: October 2024

The current study investigated the geographic distribution and characteristics of fish consumption in Odisha State, India. The study was conducted across various locations, comprising urban coastal (Puri), rural coastal (Balasore), urban non-coastal (Cuttack) andrural non-coastal (Mayurbhanj) districts in the state. A total of 1440 respondents were selected for assessing the fish consumption patterns across theses diverse locations. According to the consumer profile, 82% of respondents were between the age of 20 and50, with 24% having a college degree. More than 90% of the respondents reported that they consume fish regularly. The results indicated that increased fish availability (62%), accessibility (52%), and affordability (48%) contributed to a rise in fish consumption over time. Over all, distance to the fish access points ranged between 1 to 2 . Catla was the most preferred fish species among consumers, followed by Rohu and other carps. Several barriers to increasing fish consumption were identified based on the perceptions of the respondents, such as erratic availability, lack of preference for fresh fish, wide price variations, limited access and high price. The data were analysed using a range of statistical and econometric methods, including conjoint analysis, preference assessment index and discriminant analysis.
 
Keywords: Coastal, Conjoint analysis, Discriminant analysis, Fish consumption, Non-coastal, Preference assessment index
Economic assessment and sustainable management of artisanal fisheries: Insights from River Jhelum, Kashmir, India
Authors: Shahid Gul  , Swadesh Prakash  , Neha Wajahat Qureshi  , Vinod Kumar Yadav  , Arpita Sharma  , Shakir Ahmad Mir
Published: October 2024

This study was conducted to comprehensively assess artisanal fishers’ economic and financial viability, relying heavily on a shared resource, namely the River Jhelum. Employing a proportional multi-stage stratified sampling approach, a total of 200 fishers were interviewed across six districts in Kashmir, covering the entire length of the river. The Benefit Cost Ratio (BCR) of 1.1, coupled with a positive Net Present Value (NPV), underscores the economic profitability of artisanal fisheries. Constraint analysis highlighted that fishermen express substantial concerns regarding the ongoing decline in both catch and the composition (Garret score: 83) of native fish species, particularly Schizothorax, and pollution in the river (Garret score: 73). Considering the perspectives of all stakeholders, it becomes evident that comprehensive sustainability measures are imperative. To achieve this, multiple stakeholders must collaborate and establish a unified administrative body, solely dedicated to the protection of riverine resources. In addition to implementing a two-month fishing ban and modifying the licensing policy, maintaining a detailed record of daily fish catches, including both biological and economic data, at each fishing site is also crucial. Such actions will facilitate the implementation of optimal exploitation levels for this invaluable inland water resource.
 
Keywords: Constraint analysis, Economic performance, Financial feasibility, Net present value, Schizothorax, Sustainability
Indian marine products exports: Growth, instability and geographical diversification
Authors: V. Chandrasekar  , V. Geethalakshmi  , A. Suresh  , Nikita Gopal
Published: October 2024

The export of marine products is a significant source of foreign exchange and plays a crucial role in the Indian economy by generating income and employment opportunities. The marine sector contributed 25% (4.13 million t) to the overall fish production in India during the fiscal year 2022-23. The primary objective of this study is to analyse the growth rate, instability, and geographical diversification of marine product exports in terms of both quantity and value. Secondary data related to the major export destinations (Japan, USA, European Union, China, South-East Asia, Middle East and others) and item-wise export (shrimp, finfish, cuttlefish, squid, dried, live, chilled and others) of marine products from India during the period 2000-01 to 2019-20 were collected from the Marine Product Export Development Authority (MPEDA). The growth rate, instability and geographical diversification of exports were estimated using the semi-log regression model, instability index (Ray’s method) and Simpson’s diversity index, respectively. The findings reveal that the overall growth rate of marine product exports over the last two decades was 7.13%. Dry fish exhibited the highest growth rate (15.34%) among all products, and South-East Asia showed the highest growth rate (16.05%) among destinations. However, a significant decline in growth rates of export quantity and value was observed between the two decades for all items, except for frozen shrimp, accompanied by an increase in export instability. The Simpson’s diversity index indicated a significant diversification of 70%, reflecting wide variety of marine products exported as well as the broad range of destination countries.
 
Keywords: Ray’s instability index, Seafood exports, Simpson diversity index, Growth rate
Effect of Azolla meal-based diet on growth performance, haematological profile and proximate composition of common carp (Cyprinus carpio) fry
Authors: Bharti Vivekanand , Kamal Sarma  , Tarkeshwar Kumar  , Surendra Kumar Ahirwal  , Jaspreet Singh  , Malachy Nwigwe Okechukwu Ajima  , Rohan Kumar Raman
Published: October 2024

Optimising the cost of nutrients in fish diets is crucial for aquaculture production, as feed accounts for 50% of operational expenses in intensive aquaculture. The rising demand for mustard oil cake (MOC), a commonly used feed ingredient in Indian aquaculture, has led to a significant increase in its price due to its diverse applications. Azolla (Azolla pinnata), a free-floating freshwater plant, has attracted researchers in fish feed formulation due to its rich nutrient profile. The present study was conducted to evaluate the effects of replacement of MOC with Azolla meal in the diet of common carp (Cyprinus carpio) fry. Pelleted feed was formulated with Azolla meal replacing MOC at levels of 0, 10, 20, 30 and 40% and fed to fish. Growth performance, feed conversion ratio (FCR), haematological parameters and proximate composition in fish carcass were assessed after 90 days of experimental feeding. Simultaneously, a control feed without supplementing of Azolla meal was also prepared. Fish were fed daily with the experimental diets at 8, 6 and 4% of their body weight during the first, second and third months respectively, in the morning hours (10:00 hrs). Principal component analysis (PCA) was performed to assess the effect of formulated diets on fish carcasses composition and haematological parameters. The results showed that replacing 30% of MOC with Azolla meal in the diet, led to significantly (p≤0.05) higher specific growth rate (SGR) and percentage weight gain and significantly (p≤0.05) lower feed conversion ratio (FCR) at this concentration. Fish survival rate ranged from 80.00 to 93.33% among different treatments. Further, significant (p≤0.05) differences were observed in both haematological parameters of fish and the proximate composition of fish carcass. among the different treatments. These findings suggest that MOC can be effectively replaced with 30% Azolla meal in the diet for rearing common carp fry to fingerling stage, without compromising the growth performance.
 
Keywords: Aquaculture, Feed conversion ratio, Health status, Mustard oil cake, Principal component analysis, Specific growth rate, Survival
Length-based assessment of penaeid shrimp fishery stocks along the north-eastern Arabian Sea
Authors: Kumar Rajan , Dash Gyanranjan , P. T. Sarada  , Rahangdale Shikha , Vase Vinayakumar , Solanki Vipul , Gohel Jayshree
Published: October 2024

Penaeid shrimps are a key resource in marine fisheries and are of great ecological and economic importance. The north-west (NW) coast of India contributes significantly (~30%) to the penaeid shrimp landings in India. Four species of penaeid shrimps, namelyParapenaeopsis stylifera, Solenocera crassicornis, Metapenaeus affinis, and M. monoceros, were assessed using Length-based spawning potential ratio (SPR) based on the length frequency data collected during 2017-21, from commercial trawlers operating in the depth range of 20-100 m along the north-west coast of India bordering the north-eastern Arabian Sea. The current status (2021) of P. stylifera, S. crassicornis and M. affinis was found to be healthy, with a spawning potential ratio of ≥ 0.40. For M. monoceros, the SPR was slightly below 0.40 (0.34-35), however, considering the fast growth and short generation time for the resources, the stock status can be considered fair. Significant reduction in fishing pressure (F/M < 1.0) and increase in SPR (>0.40) during COVID-19 affected years (2020-21) were evident. The reduction in fishing hours during the pandemic has allowed the resource to regain the target reference point (TRP) for SPR. Declining catches over the past decade for the group are not due to resource depletion but for the shift in species preference and the diversification of trawls in the region, with bottom trawling giving way to pelagic trawling.
 
Keywords: Sustainability, Spawning potential ratio, COVID-19, Penaeid shrimps
The influence of technological factors on density and the strength of ash gas concrete
Authors:   Kazakh National Research  Technical University named after K.I. Satpayev, Nurpeisova Marzhan , Orynbekov Yelzhan ,   Kazakh National Research  Technical University named after K.I. Satpayev, Fedotenko Natalia ,   Institute of Problems of Integrated Development of Mineral Resources named  after Academician N.V. Melnikov of the Russian  Federation Academy of Sciences, Estemesova Aksaya ,   Kazakh National Research  Technical University named after K.I. Satpayev
Published: October 2024

One of the promising areas of fly ash utilization is the production of cellular concretes. The experience of using cellular concrete products in construction has shown that they can successfully compete with most traditional materials combining high thermal insulation and structural properties. The paper examines the influence of technological factors: grinding, composition, water temperature and water solid ratio on the density and strength of the gas and gold cement. Purpose of the study. Determination of the influence of technological factors of production on the density and strength of ash gas concrete. Materials and methods. Portland cement, fly ash from Ekibastuz GRES-2, bassanite, and aluminum powder were used as starting materials. The composition of ash gas concrete with an average density of 700, 800 and 900 kg/m3 was developed according to the technical requirements of CH 277-80 – Instructions for the manufacture of cellular concrete products. The physical and mechanical properties of cellular concrete were determined in accordance with the technical requirements of the current standards. The result s and discussion. On the basis of the basic composition, the influence of technological factors on the density and strength of ash gas concrete has been studied. As a result of the research, it was found that the strength of samples with an average density of 700 kg/m3 reaches 3.5 MPa, and with an average density of 800 and 900 kg/m3 – 5.1 and 7.6 MPa, respectively. These indicators confirm that the samples obtained from mechanically activated gold cement binder according to the technical requirements of GOST 25485-2019 correspond to the structural and thermal insulation properties of cellular concrete. Resume. The physical and technical properties of raw materials, concrete mixtures and cellular concretes were studied using Ekibastuz GRES-2 ash as a fine filler. The study showed that production technological factors such as the dispersion and composition of the mixture, the water-solid ratio and the temperature of the mixing water have a significant effect on the density and strength of the ash gas concrete. Optimization of these parameters makes it possible to achieve the specified values of density and strength in the resulting material. Proposals for practical application and direction of future research. The possibility and expediency of using the ash of Ekibastuz GRES-2 as an additive in the manufacture of ash gas concrete has been established.
Perylene-derivative singlet exciton fission in water solution
Authors: Llansola-Portoles Manuel , Magne Chloe , Streckaite Simona , Domínguez-Ojeda Eduardo , Echeverri Andrea , Brigiano Flavio Siro , Ha-Thi Minh-Huong , Franckevicius Marius , Jasinskas Vidmantas , Quaranta Annamaria , Pascal Andrew , Pino THOMAS , Robert Bruno , Contreras-García Julia , Finkelstein-Shapiro Daniel , Gulbinas Vidmantas
Published: October 2024

We provide direct evidence of singlet fission occurring with water-soluble compounds. We show that perylene-3,4,9,10-tetracarboxylate forms dynamic dimers in aqueous solution, with lifetimes long enough to allow intermolecular processes such as singlet fission. As these are transient dimers rather than stable aggregates, they retain a significant degree of disorder. We performed a comprehensive analysis of such dynamic assemblies using time-resolved absorption and fluorescence spectroscopy, nuclear magnetic resonance spectroscopy, and theoretical modelling, allowing us to observe the characteristic signatures of singlet fission and develop a model to characterize the different species observed. Our findings reveal that structure fluctuations within perylene-3,4,9,10-tetracarboxylate associations are key in favoring either singlet fission or charge separation. The efficiency of triplet formation is higher than 100%, and the disordered system leads to triplets living in the nanosecond time range.
The suitability of butterflies as indicators of ecosystem eminence: A study on Abundance, diversity and community composition of Papilionid Butterflies at Peechi, Kerala.
Authors: S Revathy V , Mathew George , Lakshmi Gauri
Published: October 2024

Butterflies being pretty, various of their behavior require precise ecological situations for his or her survival. However, because of diverse reasons, especially because of human intervention, the habitats of many butterflies had been altered. Consequently, many species of butterflies that were once very common have vanished. Main objective of this study was to determine the diversity and dynamics of Swallowtail butterflies in the landscaped sites and to understand their effectiveness in conservation of these groups. Data pertaining to butterfly population, seasonal patterns and habitat associations was generated by making regular observations in the field along a transect for a period of 28 months from September 2010 to December 2012. A total of 3128 sightings of 12 species of were recorded during the study period.1510 individuals were recorded during the first half of the study and 1618 individuals in the second half. Six species, viz., Troides minos, Atrophaneura aristolochiae, Papilio polytes, P.polymnestor, C.clytia and G.agamemnon were commonly observed in the area during most of the seasons while species such as Atrophaneura hector, A.pandiyana, P.paris, P.dravidarum, P.demoleus, P.liomedon and G.sarpedon were present in the garden only during certain seasons. With regard to species abundance, except for A.aristolochiae and P. polymnestor which enjoyed relatively higher abundance and wider distribution within the study area. Information related to the community structure, composition and seasonal fluctuations of the butterfly fauna are very important and form a baseline data for the future conservation programmes.
WITHDRAWN: Phosphate-Driven Interfacial Self-Assembly of Silk Fibroin for Continuous Non-Covalent Growth of Nanothin Defect-Free Coatings
Authors: Wigham Caleb , Fink Tanner D. , Sorci Mirco , O'Reilly Padraic , Park Sung , Kim Jeongae , Zha R. Helen
Published: October 2024

The full text of this preprint has been withdrawn by the authors while they make corrections to the work. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
Modular Nano-Scaffold Biocatalysis for Superior PET Depolymerization and Valorization
Authors: Liang Zhuobin , Zhang Yujia , Li Chongsen , Hashemi Ehsan , Xu Enting , Yang Xuemei , Yanbing Lin , Gao Hui
Published: October 2024

The global crisis of polyethylene terephthalate (PET) waste demands innovative solutions for sustainable management. Current approaches are often inefficient, energy-intensive, and result in incomplete depolymerization. Here, we introduce SPEED (Scaffold-enabled PET Enzyme Ensemble-augmented Degradation), a transformative biocatalytic platform engineered for the superior degradation across diverse PET substrates. Through the strategic combination of complementary PET hydrolases on a tailored protein nano-scaffold and extensive optimization, SPEED achieves near-complete depolymerization of PET into its constituent monomers, exceeding existing biocatalytic systems’ efficiency by up to two orders of magnitude. The platform’s versatility and industrial relevance are further demonstrated through successful integration with metal-organic frameworks (MOFs) for enhanced stability and reusability, enabling PET upcycling into valuable products, and its compatibility with a yeast-based live cell system for surface display. SPEED’s high efficiency, adaptability, and cost-effectiveness position it as a powerful technology to accelerate sustainable plastic waste management and drive a circular PET economy.
The Influence of Multi-generational High-Fiber Diet on the Gut Microbiota of Root Voles (Microtus oeconomus)
Authors: zhang yan , Wang Yihong , Wanyan Ruijun , Yao Baohui , Tan Zhaoxian , Wang Rong , Li Huan , Qu Jiapeng
Published: October 2024

Fiber influences animal metabolism by affecting the gut microbiota, and high-fiber diets are often considered beneficial. However, existing research primarily focuses on the short-term effects of high-fiber diets, with limited studies on their long-term and trans-generational impacts on gut microbiota. This study investigated the long-term high-fiber diets and trans-generational effects on root voles (Microtus oeconomus)’ gut microbiota over five generations (F0 to F4) using 16S rRNA gene sequencing. Results showed that high-fiber diet significantly increased the diversity and complexity of gut microbiota and upregulated genes related to metabolism and immunity. The proportion of non-cellulose-degrading bacteria such as Proteobacteria and Spirochaetes decreased, while cellulose-degrading Firmicutes increased, raising the Firmicutes/Bacteroidetes ratio. Generational factors significantly influenced microbial community structure, reducing similarity. Over generations, both diets led to a reduction in beneficial bacteria such as Lactobacillus, Sporanaerobacter, and Clostridium, impairing the breakdown of proteins and starches. Meanwhile, potentially harmful bacteria like Desulfovibrio and Oscillospira increased, and the Firmicutes/Bacteroidetes ratio decreased, suggesting that a long-term, trans-generational uniform high-fiber diet may cause unfavorable shifts in gut microbiota. In summary, a high-fiber diet can increase gut microbiota abundance and diversity, promote cellulose-degrading bacteria, and upregulate certain metabolic genes, but long-term, uniform diets may cause gut microbiota imbalance, reducing beneficial bacteria and increasing potentially harmful ones.
Service function chain mapping method based on delay guarantee
Authors: Cai Xiaodan , Zhuge Bin , Zhang Zitian , Ren Qianye , Dong Ligang , Jiang Xian
Published: October 2024

Network function virtualization achieves the softwareization of network functions through virtualization technology, reducing operational costs but introducing challenges in network orchestration complexity. To deploy service function chains efficiently and cost-effectively in a network function virtualization environment, a latency-guaranteed, optimized mapping method is proposed. Firstly, a model that minimizes the total network deployment cost for service function chains is established, comprehensively considering user latency requirements and network resource constraints. Secondly, an improved Sparrow Search Algorithm-based mapping method for service function chains is introduced. Simulation results demonstrate that this algorithm exhibits higher service function chain request acceptance rates and lower average network costs compared to the control algorithm, showcasing significant advantages in enhancing network performance and reducing costs.
A Multi-Dilated Convolution Network for Speech Emotion Recognition
Authors: Madanian Samaneh , Adeleye Olayinka , Templeton John Michael , Chen Talen , Poellabauer Christian , Zhang Enshi , Schneider Sandra
Published: October 2024

Speech emotion recognition (SER) is an important application in the field of Affective Computing and Artificial Intelligence. Recently, there has been a significant interest in Deep Neural Networks using speech spectrograms. As the two-dimensional representation of the spectrogram includes more speech characteristics, research interest in convolution neural networks (CNNs) or advanced image recognition models is leveraged to learn deep patterns in a spectrogram to effectively perform SER. Accordingly, in this study, we propose a novel SER model based on the learning of the utterance-level spectrogram. First, we use the Spatial Pyramid Pooling (SPP) strategy to remove the size constraint associated with CNN-based image recognition task. Then, the SPP layer is deployed to extract both the global-level prominent feature vector and multi-local-level feature vector, followed by an attention model to weigh the feature vectors. Finally, we apply the ArcFace layer, typically used for face recognition, to the SER task, thereby obtaining improved SER performance. Our model achieved an unweighted accuracy of 67.9 % on IEMOCAP and 77.6 % on EMODB datasets.