bluuebunny/crossref_metadata_2025 huggingface dataset:
Could endocrine stimuli regulate fibroblasts/myofibroblasts dynamics during skin wound healing? A systematic review of preclinical models
Authors:   , Souza André de
Published: April 2023

Fibroblasts and myofibroblasts are important cells involved in wound contraction, as well as in the synthesis of important components of the extracellular matrix (ECM). However, the main mechanisms involved in the differentiation of myofibroblasts after exposure to hormones are poorly understood. Therefore, the aim of this study was to systematically review the action of endocrine stimulation on myofibroblasts during the cutaneous wound healing process using in vitro and in vivo analyses. In addition, we performed a critical review of the methodological quality of these studies using the SYRCLES risk of bias. The databases searched were PubMed/Medline, Scopus and Web of Science, and only original studies were analyzed according to the PRISMA guidelines. In vivo studies have shown that lipid hormones such as testosterone, estrogen and 17-b estradiol stimulate myofibroblast differentiation while DHT impairs this process by increasing the level of pro-inflammatory cytokines and blocking the expression of TGF-β through the signaling pathway. of the Androgen Receptor (AR)- Smad3. The peptide hormone GH, in addition to promoting the increase of the IGF-1, extension of the inflammatory phase, inhibits the differentiation of fibroblasts into myofibroblasts induced by TGF-β, while the glucagon-like peptide (GLP-1) and the hormone GHRH and dexamethasone (DX) reduce the expression of inflammatory markers such as COX-2 and increase the expression of α-SMA, promoting wound contraction. In in vitro analyses, the peptide hormone GHRH promoted an increase in α-SMA labeling, while GH reduced these markers, corroborating the in vivo analyses. The main pathways studied were TGF-β/Smad, MAPk and blockade of pro- inflammatory pathways such as NFKb. Furthermore, it was observed that the dose varies from 1 to 10mg/k of estrogen and 17-β estradiol as well as 2mg of dexamethasone increase staining for myofibroblasts and in GLP-1 and GHRH, doses of 3mg/k and 100nM respectively. The studies present heterogeneous data and have methodological limitations, however, the similarity between some studies allowed the performance of a meta-analysis considering an experimental model, treatment time and doses, leading to consistent results and greater reliability. This study is registered on the PROSPERO platform (CRD42021264735). Keywords: Endocrine regulation. Hormones. Myofibroblasts. Healing.
Endoquitinase do microsporídeo Nosema ceranae participa na infecção na abelha Apis mellifera
Authors:   , Souza Amanda Martins da Cruz
Published: April 2023

As abelhas são os principais polinizadores em ecossistemas terrestres, responsáveis por 80% da polinização realizada por insetos e três quartos das culturas alimentares dependem deste serviço ecossistêmico. Dentre as abelhas, Apis mellifera é a mais utilizada na produção de mel e como agente polinizador. Assim como a maioria dos seres vivos, A. mellifera está sujeita a ação de patógenos, com destaque para o microsporídeo Nosema ceranae que tem sido associado com perdas de produtividade e de colônias desta abelha. Os esporos de N. ceranae ao chegarem no lúmen do intestino médio invadem o citoplasma das células epiteliais para completar o ciclo de vida. Entretanto o intestino médio apresenta em seu lúmen uma barreira contra patógenos, a matriz peritrófica, formada por quitina e proteínas. Os mecanismos pelos quais N. ceranae atravessa a matriz peritrófica para chegar ao epitélio do intestino médio são pouco compreendidos. O presente estudo teve como objetivo verificar se a endoquitinase predita para N. ceranae tem função de auxiliar o patógeno na infecção da abelha por esse microsporídeo. Para tanto, foi verificada a hipótese de que a inibição da expressão da endoquitinase de N. ceranae por RNA de interferência, um mecanismo de silenciamento gênico, afeta a infecção de A. mellifera pelo patógeno. Esporos de N. ceranae nas células do intestino médio de abelhas operárias foram encontrados oito dias após a infecção (d.p.i), sendo a endoquitinase do patógeno, detectada a partir de três d.p.i. Abelhas tratadas com dsRNA para endoquitinase, 12 e 24 horas após a inoculação de esporos, apresentam supressão na expressão do gene alvo e redução no número de esporos totais e viáveis no intestino médio. A inibição da expressão do gene alvo por RNAi afeta a infecção pelo microsporídeo, indicando que esta enzima é importante para a infecção da abelha. Palavras-chave: Abelhas. Enzimas. Intestino médio. Matriz peritrófica. RNAi.
Terceirização e precarização: a conformação de espaços urbanos excludentes pelos trabalhadores terceirizados da UFV em Viçosa, Minas Gerais
Authors:   , Lourenço Matheus Hudson Viana
Published: April 2023

Desde a sua difusão, a terceirização do trabalho assumiu um papel central na organização do trabalho. Sob a influência neoliberal, o Estado brasileiro, assim como outros Estados, passou por reformas administrativas que terceirizaram as atividades que não eram consideradas estratégicas. A crescente e legitimada terceirização se estende por todos os níveis da administração pública, chegando também à Universidade Federal de Viçosa (UFV). Este trabalho investiga como se caracterizam os trabalhadores terceirizados da UFV e como eles se relacionam e acessam os espaços e serviços da cidade de Viçosa, Minas Gerais, e da UFV. Para tanto, é abordada a configuração urbana de Viçosa sob influência direta da formação e desenvolvimento da Universidade. A pesquisa esforça-se ainda em contextualizar os eventos históricos globais e nacionais que permitiram a difusão da terceirização no Brasil, conceitua e discute essa forma de organização do trabalho e busca relacioná-la com práticas espaciais de exclusão e segregação na cidade e na Universidade. O trabalho terceirizado na UFV evidenciou questões relacionadas às condições de trabalho dos trabalhadores terceirizados, às influências da terceirização na qualidade de vida, nas implicações sobre a subjetividade do trabalhador e na relação desses sujeitos com os espaços e serviços da cidade e da universidade. Palavras-chave: Terceirização. Precarização. Segregação. Exclusão.
Óleo essencial de Laurus nobilis L. (louro) induz a ativação de espécies reativas de oxigênio e vias de sinalizações celulares durante a ação larvicida
Authors:   , Basilio Larissa de cássia
Published: April 2023

Devido ao aumento da resistência aos inseticidas químicos pelos insetos e também pela poluição da fauna e flora local causado pelo seu uso, é observado um aumento do número de estudos sobre plantas medicinais com atividades inseticidas/larvicidas. Alguns desses trabalhos indicam que os compostos derivados de plantas medicinais apresentam atividades biológicas inseticidas. Assim, dada a importância da busca por novas alternativas que visem o controle dos insetos, principalmente dos vetores de doenças como é o caso do Aedes aegypti, propõe-se para estudo a verificação da ação larvicida do óleo essencial de louro (Laurus nobilis) sobre larvas de A. aegypti. Dessa forma, as larvas em estágio L3 foram expostas a diferentes diluições do óleo essencial de louro, onde a diluição 1:10.000, cuja a concentração é 0,08870 mg/mL foi utilizada nos testes posteriores, uma vez que foi a mais se aproximou do CL 50 (0,1226 mg/mL). As larvas tratadas com o óleo essencial apresentaram diversas alterações histológicas, como vacúolos nas células, desorganização do epitélio intestinal, ausência de borda estriada entre outros. Além disso, também foi observado um aumento de enzimas envolvidas no estresse oxidativo dosado no intestino médio posterior das larvas L3 de A. aegypti, assim como em alguns marcadores de oxidação lipídica e proteica. Através de imunofluorescência, constatou-se uma supressão das vias de proliferação celular, reorganização tecidual, diferenciação celular e uma ativação das vias de apoptose e autofagia. Portanto, o óleo essencial de louro mostrou-se um ótimo composto a ser utilizado como inseticida/larvicida natural. Palavras-chave: Laurus nobilis L. Louro. Óleo Essencial. Espécies Reativas de Óxigênio.
СОВЕТ ҲОКИМИЯТИНИНГ ЎЗБЕКИСТОН ССРГА ХАЛҚЛАРНИ МАЖБУРИЙ КЎЧИРИШ СИЁСАТИ ТАРИХШУНОСЛИГИ
Authors: Рахманова Мавлуда
Published: April 2023

Ушбу мақолада Иккинчи жаҳон уруши арафаси  ва уруш йилларида Ўзбекистон ССРга мажбуран кўчирилган халқлар тарихини акс эттирувчи илмий адабиётлар, тадқиқотлар, монография ва мақолалар таҳлил этилган ва уларнинг Ўзбекистон тарихшунослигидаги муҳим жиҳатлари тадқиқ этилган.
НОМОДДИЙ МАДАНИЙ МЕРОС ИЖОДКОРЛАР НИГОҲИДА
Authors: Хамидова Дилфуза
Published: April 2023

Мазкур мақолада Хоразм “Лазги” санъатининг ЮНЕСКО томонидан инсониятнинг номоддий маданий меросининг репрезентатив рўйҳатига киритиш жараёнлари баён этилган. Шунингдек, Хоразм лазги санъати ва унинг ижрочилари фаолияти ёритиб берилган.
СОЛИҚ НАЗОРАТИ ТИЗИМИДА КАМЕРАЛ СОЛИҚ ТЕКШИРУВЛАРИНИ ЎТКАЗИШ АМАЛИЁТИ ТАҲЛИЛИ
Authors: Файзуллоев Мирсаид
Published: April 2023

Мазкур мақолада, солиқ хизмати органлари томонидан камерал солиқ текширувларининг услубий асослари такомиллаштириш ва уларни самарадорлигини баҳолаш йўллари бўйича тадқиқотлар олиб борилган бўлиб, тадқиқот доирасида хулоса ва таклифлар шакллантирилган.
ИҚТИСОДИЙ ИСЛОҲОТЛАРНИ ЖАДАЛЛАШТИРИШ УЧУН ЗАМОНАВИЙ РАҚАМЛИ ЕЧИМЛАРНИ ТАКОМИЛЛАШТИРИШ МАСАЛАЛАРИ
Authors: Насруллоев Ҳикматулло
Published: April 2023

Мақолада рақамли иқтисодиёт шароитида хорижда ва мамлакатимизда ахборотлашган жамиятга киришнинг ўзига хос хусусиятлари таҳлили, ахборот-коммуникациялар бозори иштирокчиларининг ташкилий-функционал алоқалари келтирилган.
ИШЛАБ ЧИҚАРИШНИНГ КАПИТАЛ ВА УНИНГ САМАРАДОРЛИГИНИ ОШИРИШДА ИННОВАЦИОН ЁНДАШУВНИНГ АҲАМИЯТИ
Authors: Тоштемиров Шоҳруҳ
Published: April 2023

Ушбу мақолада бугунги кунда Ўзбекистонда Ишлаб чиқаришнинг капитал ва унинг самарадорлигини оширишда инновацион ёндашувнинг аҳамияти, бу орқали мамлакатдаги ишлаб чиқаришни кенгайтириш, ишлаб чиқаришдаги капиталларга инновациялар киритиш орқали корхона ва фирмалар бозорга сифатли маҳсулотларни етказиб бериш орқали истеъмолчилар эҳтиёжларини қондириш хамда юқори даромад олиш хамда мамлакатнинг иқтисодий ўсишини таъминлаш тадқиқ этилади.
ЦИВИЛИЗАЦИЯ ТУШУНЧАСИ ВА УНИНГ ГНОСЕОЛОГИК МОҲИЯТИ
Authors: Ҳакимов Акмалжон
Published: April 2023

Ушбу мақолада жамият тараққиёти хусусиятлари, цивилизация тушунчаси ва унинг  гносеологик моҳияти , илмий ёндашувларнинг хилма-хиллиги хусусида фикр юритилган.
“OPEN ARTIFICIAL INTELLIGENCE GPT” TIL MODELINING FALSAFIY TAHLILI
Authors: Boboqulov Abror
Published: April 2023

Maqolada bugungi kunda foydalanuvchilari bo‘yicha yetakchi o‘rinni egallayotgan va inson faoliyatining turli tarmoqlariga kirib kelayotgan “OpenAI” korxonasining “ChatGPT” sun’iy intellekt moduli va uning falsafiy jixatlari tahlil qilinadi. “ChatGPT” ijtimoiy tarmoq dasturi sohalar va foydalanuvchilar qamrovi jixatidan shiddatli tarzda shakllanib bormoqda va bizning oldimizga ushbu tarmoqlarning falsafiy va ijtimoiy ahamiyatini o‘rganishni dolzarb qilib qo‘ymoqda.
САМАРҚАНД ВОҲАСИ ЭТНИК ГУРУҲЛАРИНИНГ КЕЛИБ ЧИҚИШИ ВА УЛАРНИГ ЯШАШ ТАРЗИ
Authors: Ялгашев Бунёд
Published: April 2023

Мазкур маолқада Самарқанд воҳасида қадимдан яшаб келган туркий ва туркий бўлмаган қабилаларнинг тарихи, уларнинг воҳадаги турмуш тарзи ҳамда уларнинг ўзаро маданий алоқалари таҳлил қилинган. Шунингдек, бугунги кундаги Самарқанд воҳаси этномаданиятида ўзининг маданий ва ижтимоий таъсирини сақлаб келаётган тожик ва эроний миллатларининг тарихи ва маданияти ўрганилган.
ИМОМ АБУ МАНСУР МОТУРИДИЙ ВА МОТУРИДИЙЛИК ТАЪЛИМОТИ – ДУНЁ ОЛИМЛАРИ НИГОҲИДА
Authors: Адашова Махсума
Published: April 2023

Мазкур мақолада ақида ва калом илмининг султони Имом Абу Мансур Мотуридийнинг буюк шахсияти  ва илмий меросини ўрганиш бўйича дунё олимлари томонидан олиб борилган илмий фаолият натижалари ва уларнинг таҳлили бўйича маълумотлар берилади. Хусусан, туркиялик олимлар томонидан Имом Мотуридийнинг фалсафий меросини тадқиқ
LEXICAL UNITS OF THE SEMANTIC FIELD “MURDER”
Authors: Ismoilova Dilorom
Published: April 2023

The article discusses the structural linguistics and its crucial methods which are implemented in scientific research. The field theory is considered as one of the effective methods to analyze the structural and semantic peculiarities of the language.   The structure of the microfield of "murder" in the English language and the semantic features of its constituents are scrutinized in this article. Also, the synonymic, antonymic, hyper-hyponymic and graduonymic relations of the lexical units connected to this field within the field were analyzed based on the views of the field theory. In particular, the article reflects the results of research on the methodical use of lexical units included in the microfield of "murder". The author deeply analyzed the general and specific semantic features of these components.
Resíduos de construção civil no município de Tucuruí-PA: análise e contribuições para uma proposta genérica de um plano de gestão
Authors: Siqueira Rafaela Ribeiro , Macedo Alcebíades Negrão
Published: April 2023

A realidade de muitos municípios brasileiros, incluindo o de Tucuruí no Estado do Pará, Brasil, não apresenta uma gestão de RCC adequada a sua conjuntura. Mesmo sendo necessário o cumprimento das exigências legais que pontua a gestão de RCC, tal como a elaboração de plano de gestão de resíduos da construção civil que seja acessível e aplicável à real necessidade de cada município. Como forma de compreender a situação, foi proposta a pesquisa em questão, tendo como principal objetivo subsídios para a criação de um plano genérico de gestão de RCC. Para a concretização do trabalho, a metodologia utilizada quanto ao tipo de abordagem é qualitativa e quantitativa, em relação a sua natureza, é considerada aplicada e quanto aos procedimentos técnicos, caracteriza se como estudo de caso. Dentro dessa linha de raciocínio, com aspecto de identificar os impactos causados, foram realizadas entrevistas indiretas com os gestores de órgãos públicos e privados e também análise in loco. Portanto, o trabalho mediante análise do cenário encontrado reafirma a necessidade da redução, reutilização, reciclagem, reaproveitamento e a destinação ambientalmente correta de RCC, desse modo, as estratégias propostas no plano poderão auxiliar nos aspectos físicos, políticos, socioambientais e econômico de Tucuruí-PA.
A brief introduction to the Matlab program
Authors: Tomozei I.C , Axinte T , Paraschiv L
Published: April 2023

The paper aims just a brief introduction to the MATLAB software. In this article, we study three cases: right triangle, pendulum and simply supported beam. In the first case, we make a right triangle that has the following dimensions: 3m, 4m and 5m. Moreover, in the second case, we calculate the angle αt from a simple pendulum. In the last case, is determined shear force and bending moment only when the uniform distributed load act on the simply supported beam (SSB).
Multiple Ambivalent Feminine Spaces in Zora Neale Hurston’s Feminine Characters
Authors: Salam Alali
Published: April 2023

This paper focuses on Zora Neale Hurston’s exploration of feminine space and the way she viewed the African Americans in a very fragmentary way borrowing from the post- colonial theory Homi Bhabha’s concept of “third space” and from Stuart Hall’s concept of “becoming” and “positionality.”  It also explores the concept of space in selected novels by Hurston, using Edward W. Soja’s and Henry Lefebvre’s idea about the multiplicity and hybridity of third space in favor of negating the plurality of space, taking it at the end to apply on gender in her chosen fiction.
La pancreatitis aguda recurrente no es infrecuente en la práctica clínica habitual
Authors: Ruiz-Rebollo María Lourdes , Muñoz-Moreno María Fe , Busta-Nistal Reyes , Rizzo- Rodríguez María Antonella , Izquierdo-Santervás Sandra
Published: April 2023

La Pancreatitis Aguda Recurrente (PAR) es una entidad frecuente de la que hay pocos datos publicados. El objetivo del estudio es hallar la tasa y factores de riesgo asociados a PAR en nuestro medio. Es un estudio retrospectivo, unicéntrico, de pacientes ingresados por Pancreatitis Aguda (PA) y seguidos posteriormente. Se dividen en 2 grupos de pacientes: 1.- pacientes con un solo episodio de PA (PAS) y 2.- pacientes con más de un ingreso por PA (PAR). Se comparan variables clínicas, demográficas y de resultado. Resultados: 561 pacientes fueron incluidos y seguidos durante una media de 67,63 meses. 18,9% tuvieron al menos otro ingreso por PA. La mayoría sufrieron un solo episodio de PAR (93%). La etiología más frecuente fue biliar (67%). En el análisis univariado, una menor edad (p 0,004), la ausencia de hipertensión arterial (p 0,013) y de SIRS (p 0,022) se asociaron con PAR. En el análisis multivariado solo una menor edad se relacionó con PAR (OR 1,015, 95%, IC 1,00-1,029). No encontramos diferencias en las variables resultados entre ambos grupos. La PAR cursó de forma más leve (9% de pancreatitis moderada/graves o graves versus 19%). Casi un 70% de los pacientes con PAR biliar no tenían realizada una colecistectomía tras el ingreso índice. En este subgrupo de PAR, la edad OR 0,964 (95% IC 0,946-0,983), la colecistectomía OR 0,075 (95% IC 0,189-0,030) y la colecistectomía más colangiografía retrógrada OR 0,190 (95% IC 0,219-0,055) se asociaban a ausencia de PAR. Conclusión: Nuestra tasa de PAR fue 18,9%, con una menor edad como factor de riesgo. La etiología biliar fue la más frecuente que podría haberse evitado de haber realizado colecistectomía o colecistectomía más colangiografía retrógrada tras el primer ingreso.
Los sospechosos de siempre: grasas, azúcares y sales. Circulación y apropiación de controversias alimenticias en una cocina
Authors: Daza Caicedo Sandra
Published: April 2023

El presente artículo discute la mirada reduccionista de la alimentación conocida en los estudios sociales de la ciencia y la tecnología como Nutricionismo la cual moviliza una visión reduccionista y funcionalista de la alimentación vinculándola a los efectos que micro y macro nutrientes tienen sobre la salud. Esta forma de comprender la alimentación es ampliamente utilizada en políticas nutricionales y de salud pública y movilizada por las industrias alimenticias para el desarrollo de productos “saludables”.  Utilizando el ejemplo de las atribuciones sobre la salud que se les ha otorgado a las grasas, la sal y el azúcar (los sospechosos de siempre) se analiza cómo dichas atribuciones son productos de controversias y ensamblajes complejos entre laboratorios científicos, políticas e industrias alimenticias. Adicionalmente se discute a través de un análisis etnográfico en clases de cocina cómo los discursos ensamblados sobre estos tres sospechosos circulan y son traducidos y apropiados por profesores y estudiantes de estas clases relevando a estos productos y a la alimentación como un fenómeno más complejo.
Resignificaciones de las tecnologías digitales en la Sierra Norte de Oaxaca: el Colectivo Multimedios Jënmë’ëny.
Authors: Nava Morales Elena
Published: April 2023

El objetivo de este artículo es explorar los usos y resignificaciones que un colectivo multimedios ayuujk, en la Sierra Norte de Oaxaca, da a las tecnologías digitales y, específicamente, a la red socio-digital Facebook. La “indigenización de la modernidad” abre un marco amplio para poder entender los procesos de resignificación culutral y política que los jóvenes desarrollan al utilizar estas tecnologías. A través de una breve aproximación al caso mostraré cómo los usos particulares de la tecnología se vinculan con algunas características de los movimientos etnopolíticos, como la búsqueda de la autonomía o la revitalización de las lenguas originarias. Más allá de referirme a la noción de apropiación de la tecnología por parte de los pueblos indígenas, usaré algunas categorías alternativas que nos permiten mirarlos como agentes y no como sujetos pasivos de los procesos.
¿Del cuidado a la auto-vigilancia? Debates sobre los usos de las eHealth en salud mental
Authors: Gómez Ivan Eliab
Published: April 2023

El trabajo presenta un análisis sobre fomento de las intervenciones en salud basadas en tecnologías digitales, conocidas como eHealth, para el campo de la salud mental. Para ello, planteo, desde un enfoque de epistemología social, la pertinencia de revisar no solo el funcionamiento, alcance y efectividad de estas tecnologías digitales, sino reflexionar sobre noción de salud mental a la cual se adecua el fomento de dichos instrumentos y dispositivos. En la primera sección presento y señalo algunos datos sobre el alcanza de las eHealth. En la segunda sección reviso dos tipos de evaluaciones planteadas a las eHealth, una de carácter interno planteado desde la salud pública y una de carácter externo, planteada por los estudios críticos de la salud digital sugeridos por la socióloga Debora Lupton. En la tercera y última sección analizo, siguiendo las críticas de Lupton, de qué forma las eHealth fomentadas desde espacios como el proyecto de Salud Mental Global incentivan una medicalización discursiva y fomentan una aproximación individual de la promoción y atención en la salud mental que va en detrimento tanto de los determinantes sociales de la salud mental como de otras opciones de atención que están exentas del uso del lenguaje biomédico, como son los grupos de apoyo.
Plataformas. Una introducción: la cosa, el caos, humanos y flujos
Authors: Zukerfeld Mariano , Yansen Guillermina
Published: April 2023

El presente trabajo se enfoca en las plataformas de Internet, en el contexto del capitalismo informacional. Frente a las limitaciones de las caracterizaciones y tipologizaciones previas se propone tres objetivos. Primero, definir a las plataformas y sistematizar sus rasgos principales. Segundo, ofrecer una tipología de plataformas, atendiendo principalmente a dos variables complementarias (su carácter con o sin fines de lucro y el principal bien o servicio que intermedian: bienes, vínculos o trabajo). Tercero, caracterizar específicamente a las plataformas capitalistas identificando sus modelos de negocio, los tipos de actores humanos y flujos que circulan en ellas. Metodológicamente, el artículo se apoya en la revisión crítica de literatura especializada y en la introducción de categorías propias.
Overview of Digital Marketing Services
Authors: Priyanka  , Vimmi Malhotra
Published: April 2023

Understanding the concept of digital marketing and the objective of the Internship is to understand the requirements of the client and develop the strategies according to the requirements to achieve the client’s objectives
Face Recognition Based Attendance System
Authors: Er. Farzana Khan  , Saad Mohd Shahid Vadanagara  , Mohammed Mustafa Arif Chamadiya  , Khan Anees Nafees  , Ashmiza Riyazuddin Shah
Published: April 2023

This paper explores the use of automated technologies in the face recognition based recognition system, with a focus on automating attendance capture. The project aims to improve the attendance marking of students by providing a more personalized and efficient service through the design and implementation of a Digital Attendance Web application. A face-based recognition system is a computer-based system that utilizes image recognition technology to identify individuals. In this paper, we present a face-based recognition system that uses deep learning techniques to extract features from facial images and identify individuals.[1] The proposed system utilizes Haar Cascade to extract features from facial images, and a classifier is trained to recognize the individual in the image.[6] The system is trained on a large dataset of facial images. It achieves high accuracy in identifying individuals in different scenarios, such as variations in illumination, pose, and facial expressions. The proposed system has a wide range of applications, including security, surveillance, and identification systems. It has the potential to revolutionize the way we interact with technology and enhance the security of our personal information
Drone-Assisted Secure Healthcare with AI/ML Algorithm and Big Data Analytics for 6G Wireless Communication in the Future
Authors: Dr. G. Nanthakumar  , Mr. K. Pazhanivel  , Abitharani A  , Atchaya R  , V Nishanthini
Published: April 2023

Over the next ten years, expect to witness the emergence of a Sixth Era (6G) of innovation owing to the explosive expansion of 5G applications and rising demand for even faster communication solutions. Many researchers predicted that the 6G remote arrangement standard may appear around 2030. The Sixth Era (6G) organization, which is anticipated to be the next major amusement changer in the media transmission sector, is now the focus of attention in both academia and business. The use of rambles in healthcare will further help to lower healthcare expenditures. The need for expensive ground transportation is eliminated by using rambles to deliver the medical supplies. Additionally, the use of rambles in the inquiry and collecting of therapeutic information will reduce the need for expensive human labour. As the information gathered can be easily and swiftly analysed, this will also reduce the time and costs associated with therapeutic drugs. Long-term improvements in healthcare outcomes and lower healthcare expenditures will follow from this. Numerous organizing hubs and terminal devices provide services for use in the healthcare industry, but this requires a spine system to consider the time-consuming advantage. For future 6G age healthcare frameworks using ramble by machine learning computations with big data. Without being explicitly altered, the framework may provide the ability to memorize and advance spontaneously through machine learning from experience. AI can accurately recognize data, treatment approaches, and generally produces superior, quiet outcomes. It is essential to verify their quality and identify the appropriate linkages for big data analytics to be useful inside the healthcare industry. to ship haematological supplies, defibrillators, and immunizations via drone. The reference layered communication system for hubs and devices in real-time communication, which is part of the suggested approach, demonstrates cutting-edge healthcare application for persuasive treatment and clever integration of benefit provided by 6G distant systems.
Face Recognition Attendance System
Authors: Prof. Anand Bali  , Hafsa Shaikh  , Prachi Zodage  , Hussain Harianawala  , Shabbir Kagalwala
Published: April 2023

Attendance management is a critical task in various organizations, including educational institutions, offices, and businesses. Traditional methods of attendance tracking, such as manual roll call or using physical time clocks, are often time-consuming. Our research paper presents a comprehensive study on an automated face recognition attendance system, proposing a novel approach that leverages deep learning-based face recognition techniques. Our system shows promising results in terms of accuracy, efficiency, and security, and has the potential to revolutionize attendance management in various organizations. Further research and development in this area can lead to widespread adoption of face recognition attendance systems, benefiting organisations and user alike.
An Implementation Framework for Student Result Processing System
Authors: Adinarayana Salina  , P. Maher Swaroop  , P. Rupa Vathi  , P. Durga Prasad  , T. Sri Lakshmi
Published: April 2023

Result Processing System forms the key activities in the life span of a student. The demand for effective and efficient result computation and output presents the need to automate existing manual result processing systems. The digitized process provides capabilities such as a centralized repository for storage, management and dissemination of result information to those concerned. This project will enhance the college's existing system of publishing results by providing students with easy and quick access to their results. This paper presents a case study on analyzing academic performance of students at the end of a university degree at an early stage of the degree program, in order to help universities not only to focus more on bright students but also to initially identify students with low academic achievement and find ways to support them. The results show that it is possible to analyze the graduation performance in 4th year at university using only pre-university marks and marks of 1st and2nd year courses, no socio-economic or demographic features, with reasonable accuracy. The system is unique in that it can be adopted and adapted to suit the result processing.
Active Pharmaceutical Ingredient and Impurity Profiling Nimesulide
Authors: J. P. Lavande  , S. K. Bais  , Vaishnavi Kharat
Published: April 2023

The first nimesulide was launched in Italy for the first time as Aulin and Mesulid in 1985,it is the most frequently prescribed drug for pain and fever. It is listed as one of the Essential Medicines. Nimesulide is available throughout the world as original product. The first marketing authorization for nimesulide was approved by Italy in 1985.After one quarter of a century we evaluated its peculiar characteristics compared to other NSAIDs. Nimesulide is the only NSAID realted with arylsulfonamide class and is a COX- 2 preferential NSAIDs, because despite having prevalent effect on COX-2,has a balanced action on both cyclooxygenase. The gastrointestinal absorption is rapid and complete and explain the shorts onset of action. Nimesulide is rapidly distributed in the synovial fluid, where it persists longer than in the blood, thus contributing to efectivness of the drug in pain control. From the standpoint of safety, nimesulide arises NSAIDs with lower risk of upper gastrointestinal bleeding thanks to its preferential activity on COX-2.In relation to the risk of severe hepatic reactions, the benefit profile of nimesulide was considered by European regulatory authorities similar to other NSAIDs. Respecting international guidelines, the use of nimesulide in pain management, as that of other NSAIDs, must be considered as that of other NSAIDs alternative therapy when paracetamol is ineffective or where the pain is caused or supported by inflammatory process.
Da pesquisa ao conhecimento: entre contextos, escolhas, ações e desdobramentos
Authors: Guimarães Sávio
Published: April 2023

os oito estudos distintos e correlacionados aqui apresentados se encontram agrupados em pares de capítulos que compõem cada uma das quatro seções que estruturam o livro e enfatizando algumas das várias dimensões passíveis de se pensar o vasto campo da pesquisa científica. Sendo assim, na primeira seção, as considerações realizadas pelos autores dos dois primeiros capítulos evidenciam, sobremaneira, algumas premissas do campo, tal como, no primeiro deles, a “pesquisa científica” propriamente dita (sua base no conhecimento científico e sua categorização em tipologias distintas), e no segundo, o “projeto de pesquisa” (comumente elaborado como uma estruturação prévia do processo de investigação pretendido). Já na segunda seção, as contribuições realizadas pelos autores de mais dois capítulos explicitam algumas das abordagens de pesquisa, tal como, no primeiro deles, a “pesquisa quantitativa” (pautada na objetividade de dados estatísticos), e no segundo, a “pesquisa qualitativa” (pautada nas subjetividades da esfera social). Posteriormente, na terceira seção, as referências trazidas pelos autores em outros dois capítulos evidenciam, por sua vez, algumas das várias possibilidades de análises passíveis de adoção em um procedimento de pesquisa, tal como, no primeiro deles, a “análise discursiva” (focalizada em interpretações de discursos como o de base textual), e no segundo, a “análise semiótica” (focalizada em interpretações de caráter imagético e simbólico). Por fim, na quarta e última seção do livro, as pesquisas apresentadas em seus dois capítulos sintetizam experiências de investigação conduzidas sob perspectivas distintas, tal como, no primeiro deles, um caso de investigação vinculado à modalidade de “pesquisa-ação” (configurada pela participação ativa de um grupo focal), e no segundo, uma investigação de casos procedida por “multi-métodos” (configurada pela percepção e adoção de instrumentos e métodos múltiplos em seu desenvolvimento).
Enhancement of Muscle Shortening Torque Preloaded
with Muscle Lengthening is Joint-Specific
Authors: Almutairi Marzouq , Hunter Gary , Lein Donald , Kim SoJung , Bryan David , Inacio Mario , Hurt Christopher , Reed William , Singh Harshvardhan
Published: April 2023

Our cross-sectional study aimed to investigate joint specificity of concentric muscle torque enhancement after a maximum eccentric contraction for the knee versus ankle joints across two different movement velocities (120°/s and 180°/s). After a familiarization session, 22 healthy young adults randomly performed concentric (CONC) and maximum eccentric preloaded concentric (EccCONC) muscle strength tests of the knee extensors and ankle plantar flexors of the non-dominant leg on an isokinetic strength testing device. We calculated the ratio between EccCONC and CONC (EccCONC/CONC) for all the conditions as the marker of concentric muscle torque enhancement. Separate two-way (joints x velocity) within repeated measures ANOVAs were used to determine joint-specific torque differences at 120°/s and 180°/s. CONC and EccCONC were greater for the knee extensors versus ankle plantar flexors at 120°/s and 180°/s (32.86%–102%; p < 0.001 for both); however, EccCONC/CONC was greater for the ankle plantar flexors than knee extensors at 120°/s (52.4%; p < 0.001) and 180°/s (41.9%; p < 0.001). There was a trend of greater EccCONC/CONC for the knee extensors at 180°/s than 120°/s (6.6%; p = 0.07). Our results show that greater concentric muscle torque enhancement after a maximal eccentric contraction occurs for the ankle plantar flexors versus knee extensors. Whether the joint- specificity of concentric muscle torque enhancement after a maximal eccentric contraction differentially affects sports performance is unknown. Our data provide a reference framework to investigate joint-specific concentric muscle torque enhancement for general and clinical athletic populations.
nuevo enfoque de la teoría de la inflación
Authors: R. M.
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 344, 1977: 409-411.
Zubiri visto desde Latinoamerica
Authors: Marquínez Argote Germán
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 345, 1977: 475-484.
presencia de Monseñor Romero el primero de julio
Authors: G. L.
Published: April 2023

No hay resúmenes disponibles.

ECA Estudios Centroamericanos, Vol. 32, No. 345, 1977: 495-498.
The Role of Social Institutions in Protection of Children From Abuse and Neglect
Authors: Dabić Sandra , Spasojević Đorđe , Radulović Zoran
Published: April 2023

Child abuse is an age-old phenomenon, which is confirmed by the data from art, literature, and science from many parts of the world. There are reports on infanticide, mutilation, abandonment and other forms of violence found in many historical records of unkempt, weak, and malnourished children who were left by families to take care of themselves. Those records also make note of charity organisations and groups, as well as others that were involved in ensuring the welfare and providing protection for the children. Social institutions are institutions that ought to be the first link in the chain of providing help and care for children and minors, but at the same time, they are institutions that work on reducing the occurrences of abuse of minors in society in general. Today, there is clear evidence that child abuse is a global problem which comes in different forms and is, unfortunately, deeply-rooted in cultural, economic and social practices. Solving this global problem, however, requires a much better understanding of its occurrences in a range of environments, as well as its causes and effects in said environments. In this paper, by applying the method of quantitative and qualitative content analysis, we will review and analyse concepts of child abuse and neglect, the forms in which they come, as well as analyse the role of social institutions, with a special focus on Centres for Social Work. The creative aim of the paper is to recognise the problem of child neglect and abuse which demands an efficient response by the wider social community.
Public Procurement in Serbia as the Special Regime of Contract Law
Authors: Rašević Živorad , Despotović Danijela
Published: April 2023

The administrative and civil jurisprudence in Serbia and comparative legal systems do not concur on the nature of public procurement. While the literature on administrative law posits this emerging body of law into the public administrative law, many scholars of civil law in continental law systems subsume it under traditional law of obligations. This essay examines undefined systemic connections of the Public Procurement Act (PPA) with the law of obligations in the legal system of the Republic of Serbia. It suggests that the PPA norms, although do not explicitly refer to it, belong to a new special regime of contract law, which defining trait is the public personality of a procurement entity as one of the contracting parties. Therefore, it is proposed to consider rules of administrative decision-making on the contract awarding and its execution to be a new special regime of the contract law. Also, it is proposed to limit the superior position of the procurement entity in this relationship, for the sake of the preservation of basic civil law values.
Yields and molecular composition of gas-phase and secondary organic aerosol from the photooxidation of the volatile consumer product benzyl alcohol: formation of highly oxygenated and hydroxy nitro-aromatic compounds
Authors: Jaoui Mohammed , Docherty Kenneth S. , Lewandowski Michael , Kleindienst Tadeusz E.
Published: April 2023

Abstract. Recently, volatile chemical products (VCPs) have been increasingly
recognized as important precursors for secondary organic aerosol (SOA) and
ozone in urban areas. However, their atmospheric chemistry, physical
transformation, and impact on climate, environment, and human health
remain poorly understood. Here, the yields and chemical composition at the
molecular level of gas- and particle-phase products originating from the
photooxidation of one of these VCPs, benzyl alcohol (BnOH), are reported.
The SOA was generated in the presence of seed aerosol from nebulized
ammonium sulfate solution in a 14.5 m3 smog chamber operated in flow
mode. More than 50 organic compounds containing nitrogen and/or up to seven
oxygen atoms were identified by mass spectrometry. While a detailed
non-targeted analysis has been made, our primary focus has been to examine
highly oxygenated and nitro-aromatic compounds. The major components include
ring-opening products with a high oxygen-to-carbon ratio (e.g., malic acid,
tartaric acids, arabic acid, trihydroxy-oxo-pentanoic acids, and pentaric
acid) and ring-retaining products (e.g., benzaldehyde, benzoic acid,
catechol, 3-nitrobenzyl alcohol, 4-nitrocatechol, 2-hydroxy-5-nitrobenzyl
alcohol, 2-nitrophloroglucinol, 3,4-dihydroxy-5-nitrobenzyl alcohol). The
presence of some of these products in the gas and particle phases
simultaneously provides evidence of their gas–particle partitioning. These
oxygenated oxidation products made dominant contributions to the SOA
particle composition in both low- and high-NOx systems. Yields, organic mass
to organic carbon ratio, and proposed reaction schemes for selected
compounds are provided. The aerosol yield was 5.2 % for
BnOH/H2O2 at an SOA concentration of 52.9 µg m−3 and
ranged between 1.7 % and 8.1 % for BnOH / NOx at an SOA concentration of 40.0–119.5 µg m−3.
Mapping soil organic carbon fractions for Australia, their stocks, and uncertainty
Authors: Román Dobarco Mercedes , Wadoux Alexandre M. J-C. , Malone Brendan , Minasny Budiman , McBratney Alex B. , Searle Ross
Published: April 2023

Abstract. Soil organic carbon (SOC) is the largest terrestrial carbon pool. SOC is composed of a continuous set of compounds with different chemical compositions, origins, and susceptibilities to decomposition that are commonly separated into pools characterised by different responses to
anthropogenic and environmental disturbance. Here we map the contribution of
three SOC fractions to the total SOC content of Australia's soils. The three
SOC fractions, mineral-associated organic carbon (MAOC), particulate organic carbon (POC), and pyrogenic organic carbon (PyOC), represent SOC composition with distinct turnover rates, chemistry, and pathway formation. Data for
MAOC, POC, and PyOC were obtained with near- and mid-infrared spectral
models calibrated with measured SOC fractions. We transformed the data using
an isometric-log-ratio (ilr) transformation to account for the closed compositional nature of SOC fractions. The resulting back-transformed ilr components were mapped across Australia. SOC fraction stocks for 0–30 cm were derived with maps of total organic carbon concentration, bulk density,
coarse fragments, and soil thickness. Mapping was done by a quantile regression forest fitted with the ilr-transformed data and a large set of environmental variables as predictors. The resulting maps along with the quantified
uncertainty show the unique spatial pattern of SOC fractions in Australia.
MAOC dominated the total SOC with an average of 59 % ± 17 %,
whereas 28 % ± 17 % was PyOC and 13 % ± 11 % was POC.
The allocation of total organic carbon (TOC) to the MAOC fractions increased with depth. SOC vulnerability (i.e. POC/[MAOC+PyOC]) was greater in areas with Mediterranean and temperate climates. TOC and the distribution among
fractions were the most influential variables in SOC fraction uncertainty. Further, the diversity of climatic and pedological conditions suggests that
different mechanisms will control SOC stabilisation and dynamics across the
continent, as shown by the model covariates' importance metric. We estimated the total SOC stocks (0–30 cm) to be 13 Pg MAOC, 2 Pg POC, and 5 Pg PyOC, which is consistent with previous estimates. The maps of SOC fractions and
their stocks can be used for modelling SOC dynamics and forecasting changes
in SOC stocks as a response to land use change, management, and climate change.
Ground- and ship-based microwave radiometer measurements during EUREC4A
Authors: Schnitt Sabrina , Foth Andreas , Kalesse-Los Heike , Mech Mario , Acquistapace Claudia , Jansen Friedhelm , Löhnert Ulrich , Pospichal Bernhard , Röttenbacher Johannes , Crewell Susanne , Stevens Bjorn
Published: April 2023

Abstract. During the EUREC4A field study, microwave radiometric measurements were performed at Barbados Cloud Observatory (BCO) and aboard the RV Meteor and RV Maria S Merian. We present retrieved Integrated Water Vapor (IWV), Liquid Water Path (LWP) and temperature and humidity profiles as a unified, quality-controlled, multi-site dataset on a three second temporal resolution for a core period between January 19, 2020 and February 14, 2020 in which all instruments were operational. 14-channel K- and V-band measurements were performed at BCO and aboard the RV Meteor, and combined radar-radiometer measurements of a W-band Doppler radar with a single-channel radiometer instrument were conducted at 89 GHz onboard the RV Meteor and RV Maria S Merian. Mean IWV of 31.8 kgm−2 matches independent radiosoundings at BCO with a rootmean-square difference of 1.1 kgm−2. Mean LWP conditions in confident cloudy, non-precipitating conditions ranged between 66.5 gm−2 at BCO to 40.4 gm−2 aboard the RV Maria S Merian. Aboard the ships, 90 % of LWP was below 120 gm−2 with an uncertainty of 30 % at LWP of 50 gm−2. Up to 30 % of confident cloudy profiles ranged below the LWP detection limit due to optically thin clouds. The data set comprises of processed raw-data (Level 1), full quality-controlled post-processed instrument data (Level 2), a unified temporal resolution (Level 3), and a ready-to-use multi-site time series of IWV and LWP (Level 4), available to the public via AERIS (https://doi.org/10.25326/454, Schnitt et al., 2023). The data set complements the airborne LWP measurements conducted during EUREC4A and provides a benchmark tool for model-observation studies.
High-resolution mapping of monthly industrial water withdrawal in China from 1965 to 2020
Authors: Hou Chengcheng , Li Yan , Sang Shan , Zhao Xu , Liu Yanxu , Liu Yinglu , Zhao Fang
Published: April 2023

Abstract. High-quality gridded data on industrial water use is vital for research and water resource management. However, such data in China usually have low accuracy. In this study, we developed a gridded dataset of monthly industrial water withdrawal (IWW) for China, namely, the China industrial water withdrawal dataset (CIWW), which spans a 56-year period from 1965 to 2020 at a spatial resolution of 0.1° and 0.25°. We utilized >400,000 records of industrial enterprises, monthly industrial product output data, continuous statistical IWW records from 1965 to 2020, to facilitate spatial scaling, seasonal allocation, and long-term temporal coverage in the developing the dataset. The CIWW dataset presented significant improvement in characterizing the spatial and seasonal patterns of IWW dynamics in China, with a much higher accuracy at fine scale while ensuring consistency with statistical records. The CIWW dataset, together with its methodology, and auxiliary data, is useful for water resource management and for research in hydrology, geography, environment, and sustainability sciences. This new dataset is now available at https://doi.org/10.6084/m9.figshare.21901074.v1 (Hou and Li, 2023).
Comprehensive evaluation of typical planetary boundary layer (PBL) parameterization schemes in China. Part II: Influence of uncertainty factors
Authors: Jia Wenxing , Zhang Xiaoye , Wang Hong , Wang Yaqiang , Wang Deying , Zhong Junting , Zhang Wenjie , Zhang Lei , Guo Lifeng , Lei Yadong , Wang Jizhi , Yang Yuanqin , Lin Yi
Published: April 2023

Abstract. This study focuses on the uncertainties that influence numerical simulation results of meteorological fields (including horizontal resolution, vertical resolution, near-surface scheme, initial and boundary conditions, underlying surface update, and update of model version). By further evaluating and analyzing the uncertainty factors, it is expected to provide relevance for those scholars who are devoted to factor analysis, in order to make the results closer to the observed values. In this study, a total of 12 experiments are set up to analyze the effects of the uncertainties mentioned above, and the following conclusions are drawn: (1) Horizontal resolution has a greater effect than vertical resolution. (2) The simulated effects of temperature and wind speed in the near-surface scheme are smaller than those in the PBL scheme. (3) The initial and boundary conditions of different products have the most remarkable effect on relative humidity, and the simulation results of EC data are the best. (4) The updates with urban and water bodies as the underlying surface have a more significant contribution to the meteorological fields, especially on temperature. (5) The update of the model version does not necessarily optimize the model results. In general, the configuration of uncertainties needs to be considered comprehensively according to what you need in order to obtain the best simulation results.