bluuebunny/crossref_metadata_2025 huggingface dataset:
The application of the entomopathogenic fungus Akanthomyces muscarius modified GFP to study endophytization
Authors: Mitina Galina V. , Choglokova Anna A. , Cherepanova Marina A. , Timofeev Sergey A. , Dolgikh Viacheslav V.
Published: December 2023

Entomopathogenic fungi (EPF) of the genus Akanthomyces (formerly Lecanicillium) are one of the most common and important fungal entomopathogens, infecting sucking insects of the order Hemiptera mainly. The fungi can also parasitize on phytopathogenic fungi (rust, powdery mildew). The entomopathogens from these genera reported as endophytes in various plants under natural conditions [1–2], contributing to an increase in plant immunity to pathogens, as well as a decrease in plant colonization by pests. Endophytic colonization of plants by the fungus Akanthomyces lecanii can suppress the growth of the peach aphid [3]. Akanthomyces muscarius strains caused the death of moth when feeding on cabbage colonized by the fungus [4]. Endophytic properties were assessed using the A. muscarius (= Lecanicillium muscarium) strain Vl 72-GFP fluorescently labeled with GFP [5]. The transformation was done by electroporation of germinated conidia of the high-virulent “wild” strain Vl 72 by the pBARGPE1 vector harboring an eGFP gene, showed an expression of fluorescent protein without affecting fungal growth and virulence. The influence of the fungus on the growth rates of beans was revealed when leaves, sterile soil and seeds were treated with a suspension of conidia of 108 spores/ml. On the 7th day, stimulation of the growth of the stems and roots of the beans was observed when the seeds were soaked in a spore suspension of the fungus. When spraying the leaves, only the stem’s elongation was observed. The studied strain colonizes beans irregularly. When treating the seeds, the fungus was isolated in greater quantities from the roots (26%), when spraying the leaves — from the stem (36%), when watering the soil — also from the stem (43%). Infection of A. muscarius plants by spilling the soil was most effective. No effect of endophytization was found on the number of aphids after 14 days of aphid plant colonization. As a result of the introduction of the spores of Vl 72-GFP strain by shedding the soil under flower crops (lantana, gerbera, acanthus) in the greenhouse of Saint Petersburg Botanical Garden, this strain was isolated from the leaves of the Acanthus mollis L. after one month, which confirms the ability of this species to endophytic colonization of plants in greenhouse conditions. Analysis of hyphae Vl 72-GFP in the plant performed on an AxioImager M1 fluorescent microscope demonstrated the same level of fluorescence as in A. muscarius hyphae growing on the media.
CLINICAL STUDIES OF THE REPELLENT EFFICACY OF BARS® VETERINARY DRUGS
IN THE FARMS OF THE ARARAT MARZ OF ARMENIA
Authors: Slobodyanik Roman  V. , Zykova Svetlana  S. , Lunegov Alexander M. , Engasheva Engasheva  S. , Dubkov Yuriy A.
Published: December 2023

Under conditions of maximum seasonal and daily activity of blood-sucking diptera insects of the Ararat region of the Republic of Armenia, the repellent effectiveness of Bars® veterinary drugs was studied. The experiments involved 26 clinically healthy dogs aged 1 to 10 years, of both sexes. As a result of clinical studies of the repellent effectiveness of veterinary drugs Bars ® insectoacaricidal spray and Bars ® insecticidal drops applied to dogs individually, once, during the prevention of bites of diptera flying insects, according to the presented doses, rules and application techniques, the drugs showed a high effectiveness of the repellent effect in the conditions of farms of the Ararat marz for 5 days. During the physical examination, no side effects were detected from the use of Bars® insecticide spray and Bars® insecticide drops.
Exploring Students' Perceptions of Learning and Satisfaction with On-line Learning to Understand Their Pedagogical Experiences at a Private Government University
Authors:   , Daugherty Robert L. , Pittman Joyce
Published: December 2023

The extent to which students in the Department of Defense (DoD) are satisfied with the content and quality of on-line learning at the Private Government University (PGU) is not clearly understood. The PGU is the component of DoD chartered by the law, The Defense Acquisition Workforce Improvement Act (DAWIA) of 1990, with delivering instruction and learning content to the Defense Acquisition Workforce (DAW) as part of the acquisition professional certification process. The purpose of this qualitative methods study was to describe and analyze the student perceptions of their satisfaction with on-line learning pedagogical experiences at PGU. This study used as its foundation Moore's (1993) theory of transactional distance and its four interaction components: student-content, faculty-student, student-student, and student character. The study was designed to use the experiences and words of the participants to not only determine the findings of the study, but also to inform the leadership and faculty of the PGU for awareness and potential curriculum improvement. The results of the study related the student perceptions about on-line learning at PGU. Of note, the perceptions and reported preferences did not vary significantly due to demographic variables. There was significant alignment on the prioritization of Moore's interactions, with majority agreement on the more significant interactions. It is important for the university administration to commission more studies in the near future to examine interactions between students in the on-line program. The results of the study demonstrate that course design, interactions between learners and teachers, the personality of students, and interactions between learners themselves all play a role in determining the success and happiness of learners in the on-line environment. Participants want to see improvements in the way courses are designed and delivered, including instructor support. Keywords: On-line Learning Satisfaction, Pedagogical Experiences, Qualitative Study, Theory of Transactional Distance, Student Perceptions, Curriculum Improvement
Разносторонний треугольник: отношения Евросоюза с США и КНР
Authors: Арбатова Надежда
Published: December 2023

Сотрудничество и конкуренция глобальных и региональных центров силы, которые стремятся увеличить свою мощь в целях более эффективной реализации национальных интересов, являются естественным состоянием и сутью полицентричности современных международных отношений. Курс Европейского союза на стратегическую автономию со всей остротой ставит вопрос о его отношениях с двумя глобальными центрами силы – Соединенными Штатами, важнейшим союзником ЕС, и Китаем, экономическим партнером и конкурентом. Должен ли Евросоюз стать полноценным независимым центром или же он должен играть вспомогательную роль самого лояльного союзника другого полюса – США? Этот вопрос лежит в основе современной стратегии ЕС. Глобальная стратегия безопасности ЕС 2016 г. провозглашает общий курс на стратегическую автономию, но оставляет за скобками ответ на этот экзистенциальный вопрос, поскольку государства – члены ЕС по-прежнему принципиально расходятся во мнениях относительно конечных целей стратегической независимости.
Человеческий капитал научного сообщества в условиях цифровой трансформации: опыт Японии
Authors: Чугров Сергей
Published: December 2023

Сейчас все развитые страны проходят через период цифровой трансформации, новый импульс которой придала пандемия COVID-19, прежде всего в области дистанционного образования, а также научных исследований. Но каждая страна идет по этому незнакомому пути по-своему, и у каждой, очевидно, можно позаимствовать освоенные ею приемы или учесть риски, с которыми ей пришлось столкнуться. Неизбежно возникает диссонанс между логистической рациональностью проходящих трансформаций и гуманистической направленностью задачи укрепления человеческого капитала, который требует осмысления с позиций политической социологии. В такой передовой в научно-техническом отношении стране, как Япония, цифровая трансформация столкнулась с труднопреодолимыми барьерами. Автор доказывает, что, с одной стороны, старшее поколение не всегда обладает нужными цифровыми компетенциями. С другой стороны, главным тормозом на пути цифровизации образовательной и научно-исследовательской сферы стала мощная и организованная японская бюрократия, привыкшая к дублированию функций. К тому же видны симптомы того, что японская научно-образовательная система подошла к порогу кризиса: например, защитившему диссертацию молодому исследователю крайне сложно продолжить научно-преподавательскую карьеру, поскольку разрастание бюрократического аппарата – вопреки целям цифровизации – ведет к сокращению штатных мест для преподавателей и научных сотрудников. Перед обществом встают крайне сложные вопросы: как выйти из этого порочного круга? Не случится ли так, что Россия пойдет по этому тернистому пути?
Disrupting the Status Quo in Late Diagnosis of Breast Cancers in the Resource Limited Settings
Authors: Gadgil Anita , Srinivasan Radhika , Kantharia Surita , Basu Partha
Published: December 2023

Breast cancer tops the list of female cancers both in incidence and mortality. Eastern and south Asian countries have seen a very significant 86%-89% rise in age standardized incidence. Currently 5-year survival of breast cancer in low- and middle-income countries is only 40-60%. There is an urgent need to reduce delays in diagnosis of breast cancer and establish effective referral pathways to improve the observed low survival. Existing literature describes reasons for such delays in breast cancer management extensively, yet does not propose solutions to disrupt this status quo. Pre-diagnostic delays and diagnostic delays are interdependent due to overlapping socioeconomic and cultural barriers to seeking health, and accessing and accepting care. Non-availability of diagnostic tests or trained human resource and out of pocket expenditure complicate these delays. Present article highlights probable solutions to mitigate these problems with an emphasis on resource limited settings. Early diagnosis of breast cancer essentially involves reducing the delays in triple assessment of symptomatic patients in the context of limited resources. Clinical breast examination, use of ultrasonography and fine needle aspiration biopsy which are possible to organize at secondary level can mitigate some of the delays. Newer technologies like portable ultrasound devices, use of artificial intelligence, cartridge based real time receptor assay can further reduce the diagnostic delay. Many pilot studies and interventions using newer point of care tests are in progress to establish their role against gold standard investigations in clinical practice. Delay in diagnosis cannot be mitigated by providing standalone solutions. Robust pathways with provision of green corridor for referrals, task shifting of patient navigation to various grassroot level health care workers, developing contextual practice guidelines, recognising challenges and weaknesses of cancer control system, and realizing importance of equitable distribution of health resources can strengthen the cancer control strategies and mitigate the delays in breast cancer diagnosis.
Decisions involving health and economic losses during the COVID-19 pandemic
Authors: Sokolowska Joanna , Swiatnicki Kornel
Published: December 2023

We investigated choices between the sacred values and other quantities. Such decisions may be impossible to avoid during a pandemic. And then we studied perception of the COVID-19 pandemic and psychological mechanism behind such choices. Perception of the pandemic was investigated in the first part of this study in which 330 respondents from Prolific Academic evaluated the negative health consequences of being sick with COVID-19, the related fear and perceived risk. Evaluations were made for both themselves and people of different ages from a general population. Participants also evaluated the effectiveness of the spring lockdown in 2020 and answered questions concerning false beliefs about the pandemic. In the second part of this study we tested to what extent acceptance of economic costs of a lockdown is explained by decisions based on: (1) tradeoffs between health and economic losses; (2) a single criterion - either health or economic losses; and (3) the mechanisms described by Terror Management Health Model. Participants declared acceptance of economic costs of possible lockdown for different levels (ranging from low to high) of three pandemic indices: daily new cases, daily new deaths and the basic reproduction number of infection. Acceptance of economic costs increases when the perceived effectiveness of the earlier lockdown is high, when elderly people are perceived as threatened and when subjects do not hold false beliefs about the pandemic. A majority of respondents (57%) was sensitive to the level of health loss: the higher health losses, the higher economic costs were accepted. These respondents used a compensatory strategy to balance health and economic losses. The others reacted in a way consistent with a single criterion strategy – ca 20% accepted no economic costs and ca 15% accepted any economic costs to fight pandemic, independently of the level of health losses and the way in which they were described.
Doctors Diagnosing Addiction – Are the Blind Leading the Blind?
Authors: Lawhern Richard
Published: December 2023

This paper addresses the questions, “are clinicians who treat patients in pain – or even specialists in addiction medicine -- appropriately prepared to accurately diagnose opioid use disorder? Further, is prevailing public policy on pain management employing opioid analgesics firmly grounded in science?” The author summarizes key findings from reviews of pertinent medical literature on pain treatment and diagnosis of substance use disorder.  Medical doctors are widely understood to be inadequately trained in diagnosis of both pain and addiction among their patients.  There is currently no consensus standard of practice to guide clinicians in either prescription of opioids or diagnosis of “substance use disorder” among patients treated for pain.  Available medical literature and clinical experience do not support the thesis that clinicians prescribing in a continuing relationship with pain patients have contributed measurably to the widely discussed US “opioid crisis” .  General principles on the management of pain and the diagnosis of substance use disorder do exist but are not widely understood by practicing clinicians. Entry of a “substance use disorder” or “addiction” code in patient electronic medical records can be a literal “kiss of death” for ongoing treatment of severe pain. Thus it seems necessary to caution clinicians who treat pain - and policy makers who oversee them - that much of what they think they “know” about substance use disorder and its causes may no longer be current or may have been wrong in the first place.
Breast Cancer Screening in Latin America: The Challenge to Move from Opportunistic to Organized-Systematic Screening
Authors: K Puschel , S Paz , M Fowler , Z Vescovic , I Fuentes , C Sanchez , F Acevedo
Published: December 2023

Background: Breast cancer is the leading cause of death from cancer among women in Latin America. Most Latin American countries started national mammogram screening programs a decade ago. The implementation level and effects of screening programs in Latin America have not been evaluated. Aim: To evaluate the association between screening programs implementation and breast cancer mortality in selected North American and European countries compared to a group of Latin American countries with national screening programs. Methods: The study applied an ecological design with secondary data from official national and international sources. Join point regression analysis was conducted to describe the trends in mortality rates in a group of five Latin American countries (Brazil, Chile, Colombia, Costa Rica and Mexico) with five Non-Latin American countries (Canada, Spain, Sweden, United Kingdom and the United States of America). The association between screening and mortality rates was explored using correlation and linear regression. National cancer plans were assessed to describe screening strategies among selected countries. Results: A significant reduction in standardized breast cancer mortality rates was observed in all Non-Latin American countries with an Average Annual Percent Change (AAPC) of -2.00 (p<.05, 95%CI [-3.33, -0.70]) for the period 2010-2020. In contrast, Latin American countries reported a significant increase in the AAPC of +1.38 (p<.05, 95%CI [0.86,1.76]) in breast cancer mortality rates for the period 2010-2020. For Latin American countries, with screening rates below 50%, there was no correlation between screening and mortality rates for the period 1985-2020 (r = -0.17, p = .78). For non-Latin American countries, with screening rates over 70%, the linear regression model explained significantly 55% of the variance in mortality rates (R2aj =.55, F (5,14) = 5.69, p = .005), with a negative and significant effect of mammogram screening on mortality rates (β = -0.14, p = .01). The National Plans analysis revealed an opportunistic screening model for Latin American countries and an organized-systematic model in Non-Latin American countries. Conclusion: There is an association between the level of implementation of screening programs and mortality rates from breast cancer. Latin American countries should transform their opportunistic strategy into an organized-systematic model.
Spatiotemporal Pyramidal CNN with Depth-Wise Separable Convolution for Eye Blinking Detection in the Wild
Authors: Anh Nguy Thi Lan , Bach Nguyen Gia , Tu Nguyen Thi Thanh , Kamioka Eiji , Tan Phan Xuan
Published: December 2023

Eye blinking detection in the wild plays an essential role in deception detection, driving fatigue detection, etc. Despite the fact that numerous attempts have already been made, the majority of them have encountered difficulties, such as the derived eye images having different resolutions as the distance between the face and the camera changes; or the requirement of a lightweight detection model to obtain a short inference time in order to perform in realtime. In this research, two problems are addressed: how the eye blinking detection model can learn efficiently from different resolutions of eye pictures in diverse conditions; and how to reduce the size of the detection model for faster inference time. We propose to utilize upsampling and downsampling the input eye images to the same resolution as one potential solution for the first problem, then find out which interpolation method can result in the highest performance of the detection model. For the second problem, although a recent spatiotemporal convolutional neural network used for eye blinking detection has a strong capacity to extract both spatial and temporal characteristics, it remains having a high number of network parameters, leading to high inference time. Therefore, using Depth-wise Separable Convolution rather than conventional convolution layers inside each branch is considered in this paper as a feasible solution.
Improving Brain Tumor Classification Efficacy through the Application of Feature Selection and Ensemble Classifiers
Authors: Yuhandri Y , Windarto Agus Perdana , Siregar Muhammad Noor Hasan
Published: December 2023

Accurate brain tumor detection is crucial due to its high mortality rate. However, existing automated methods suffer from limited accuracy and high false-positive rates. In this study, we aimed to improve brain tumor classification by comparing 17 different classifiers organized into six groups: Decision Tree (DT) Model, Support Vector Machine (SVM), Naive Bayes Classifier, Logistic Regression, Generalized Linear Model (GLM) Classifier, and Neural Network. We utilized a dataset of 3,762 Magnetic Resonance Imaging (MRI) scans of brain tumors from Kaggle, with each image having dimensions of 240 × 240 pixels and labeled as tumor or non-tumor. Our approach involved three main steps: extracting visual information using 17 predictor classes, optimizing feature extraction through weight optimization, and comparing different sets of classifier models. We evaluated the models’ performance using the confusion matrix and Receiver Operating Characteristics (ROC) curves. Our results showed that optimizing feature selection and utilizing ensemble classifiers improved the accuracy of brain tumor classification. The DT Model with ensemble classifiers emerged as the best-performing classifier, achieving an accuracy of 98.11% and an AUC of 0.99. Notably, Random Tree (RT) exhibited the highest accuracy within the ensemble classifier set, with a significant increase compared to other models. Our proposed method outperformed the standard approach, demonstrating its potential for enhancing brain tumor detection accuracy. This study contributes to the field by providing a more accurate method for detecting brain tumors, potentially enabling earlier detection and improved patient outcomes. Future research should focus on further improving brain tumor diagnosis and treatment through the application of machine learning techniques.
Prospects of silver diamine fluoride (SDF) in reducing dentin hypersensitivity: An updated review
Authors: Sultan Amina , Sultan Nishat , Juneja Akanksha
Published: December 2023

Dental Hypersensitivity (DH) is a common clinical condition yet an annoying disease. Most of the time, clinicians fail to diagnose, leading to improper management and unsatisfied patients, negatively impacting their quality of life. The management involves various self-applied and in-office management modalities. This review briefly discusses several treatment options available for dentinal hypersensitivity and recommends Silver Diamine Fluoride (SDF) as a newer and more effective treatment option for dentinal hypersensitivity based on the available literature.
Metabolomics as a diagnostic tool for periodontal diseases- An overview
Authors: Vijayalakshmi R , Senthil Surthi , Dave Pavithra H , Mahendra Jaideep , Kumari Burnice Nalina , Lakshmi Priya K , Namasivayam Ambalavanan
Published: December 2023

Periodontal disease results in gingivitis and periodontitis, is the most prevalent chronic inflammatory condition affecting the teeth and its supporting tissues. High prevalence of periodontal disease has an adverse effect on systemic health, mastication, and esthetics. There are many local and systemic factors that contribute to clinical manifestations of periodontal disease. The diagnosis is still based on conventional clinical examinations despite the high prevalence and greater understanding of the pathogenesis of periodontal disease. The term ‘metabolome’ was first coined by Steven Oliver and colleagues in the late 1990s which are active participants in metabolic reactions that are essential for normal physiological functions. GCF and saliva have been used for metabolomics based periodontal diagnosis: Mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy are the two main methods used to collect data on metabolomics. In a way that genomics, transcriptomics, and proteomics could not fully utilize, metabolomics offers a special chance to affect discovery-driven science. The field of salivary research is one that is emerging, and it is hoped that the analysis of numerous protein metabolites will enlighten the mechanisms of periodontal disease development and focus attention on the functional relationships between metabolites whose expression varies over time in relation to diseases, medications, or other protein metabolites.
Comparison of red blood cell parameters in patients with and without periodontitis – A hospital based observational study
Authors: Radhakrishnan Rekha P , Ramesh Roshni , Jayasree Lekshmi A , Vishalakshy Divya Purushothaman , Raghunath Dhanya
Published: December 2023

Dental plaque bio film aggregate around dentition is the primary etiology of periodontitis. The host inflammation mounted in response to bacterial biofilm determines the extent and severity of periodontitis. The low grade inflammation results increase in pro inflammatory cytokine levels, and this links periodontitis with other systemic diseases. Epidemiologic studies have revealed a possible association of periodontitis with some systemic diseases. There are conflicting results regarding the association of periodontitis and anemia. The aim of the study was to compare the red blood cell parameters in subjects with and without periodontitis in our population.

A single calibrated examiner was entrusted to do the periodontal examination, and 48 subjects with periodontitis (Group I) and 50 age matched subjects without periodontitis (Group II) with a mean age of 33.45 yrs. +/- 7.86 were recruited for the study. Gingival index and full mouth periodontal charting were done and 2ml blood samples were collected for estimation of blood parameters.

Group I showed a statistically insignificant difference in hemoglobin levels compared to group II (P value-0.065) where as MCH and MCHC showed a statistically significant difference between the groups (P value-0.012, 0.002 respectively).

The inflammatory burden increases with the severity of Periodontitis and this may lead to the development of anemia.
PISA en América Latina y el Caribe 2022: datos básicos
Authors: Arias Ortiz Elena , Bos María Soledad , Giambruno Cecilia , Zoido Pablo
Published: December 2023

El Programa para la Evaluación Internacional de los Estudiantes de la OCDE - PISA por sus siglas en inglés - evalúa cada tres años lo que los estudiantes de 15 años saben y pueden hacer en ciencia, lectura y matemática. En 2022, 81 países y economías participaron en la prueba. La octava ronda de PISA se pospuso del 2021 al 2022 debido a la pandemia de COVID-19. De América Latina y el Caribe, participaron 14 países: Argentina, Brasil, Chile, Colombia, Costa Rica, República Dominicana, El Salvador, Guatemala, Jamaica, México, Panamá, Paraguay, Perú y Uruguay. En esta nota se describe qué es PISA, qué competencias se evalúan y cómo ha evolucionado la participación de los países de la región en las distintas rondas.
EFECTO DEL NITRÓGENO Y LA IRRADIANZA EN LA EFICIENCIA FOTOSINTÉTICA DEL ANAMÚ PETIVERIA ALLIACEA (PHYTOLACCACEAE)
Authors: Pérez Asseff Juan Manuel , Peña Salamanca Enrique Javier , Torres González Celina
Published: December 2023

El presente estudio evaluó el efecto del nitrógeno y la irradianza sobre la eficiencia fotosintética (Fv/Fm) de Petiveria alliacea. Los resultados mostraron que la fluorescencia disminuyó al aumentar el nivel de irradianza y al disminuir la concentración de nitrógeno. La eficiencia fotosintética fue significativamente mayor en hojas de plantas con mayor disponibilidad de nitrógeno y en ambientes parcialmente sombreados. Las curvas de luz (F-I) en función de la tasa de transporte de electrones (ETR), mostraron que las plantas bajo sombra y expuestas a bajas concentraciones de nitrógeno fueron más susceptibles a bloqueos en su ETR
ESTUDIOS EN SISTEMÁTICA DE DISMORPHIINI (LEPIDOPTERA: PIERIDAE) I: MORFOLOGÍA DE HUEVOS Y SU IMPORTANCIA TAXONÓMICA
Authors: Llorente-Bousquets Jorge , Castro Gerardino Jimena
Published: December 2023

Se describen y comparan los huevecillos de 19 especies o subespecies de cinco géneros de Dismorphiini. La caracterización e ilustración de los huevos considera los principales rasgos de la estructura del corion: número de ejes longitudinales (cortos y largos) y de costillas. También se ofrecen los colores del huevo, que es una característica específica, y las proporciones de longitud y máximo diámetro de anchura. En algunos casos se dan medidas de tamaño. Se tipifican cuatro modelos de huevo: elipsoidal alargado o fusiforme, globular meloniforme, barrilete y espicular acuminado en el área micropilar. De las descripciones se hacen comparaciones y se comentan sus posibles implicaciones taxonómicas.
DINÁMICA CAÓTICA DE CONDENSADOS DE BOSE-EINSTEIN EN TRAMPAS DE POTENCIAL
Authors: Fajardo Oscar Y. , Campos Diógenes
Published: December 2023

Se estudia la dinámica caótica de condensados de Bose-Einstein (BEC) dentro de trampas de potencial mediante el uso de una formulación hamiltoniana y un espacio de fase generalizado. El inicio del comportamiento caótico en el sistema se identifica mediante la técnica de secciones de Poincaré y el espectro de evolución; la cuantificación del grado de caoticidad del sistema, en varios escenarios, se hace con base en los exponentes de Lyapunov y la entropía de Kolmogorov-Sinai (KS).
THE BEST LINEAR UNBIASED ESTIMATORS OF REGRESSION COEFFICIENTS IN A MULTIVARIATE GROWTH-CURVE MODEL. A COORDINATE-FREE APPROACH
Authors: Beganu Gabriela
Published: December 2023

The problems of the existence of the best linear unbiased estimators (BLUE) and of their equality to the ordinary least squares estimators (OLSE) of the expected value of the observations are treated in a coordinate-free approach using a multivariate growth-curve model. It will be proved that the alternative forms of the necessary and sufficient conditions used in solving these problems are independent of the between-individuals design matrix of the model.
ROCAS VOLCÁNICAS BASÁLTICAS EN LA REGIÓN DE LURUACO. DEPARTAMENTO DEL ATLÁNTICO - COLOMBIA
Authors: Galvis Vergara Jaime , Huguett Granados Alcides
Published: December 2023

Aproximadamente a sesenta kilómetros al Sur-Oeste de la ciudad de Barranquilla, en la región de Luruaco, existe un macizo montañoso cuyos picos más altos alcanzan 450 metros sobre el nivel del mar. La morfología de ese macizo es completamente diferente a la de otras geoformas que caracterizan la región Caribe al Occidente del Río Magdalena, donde predominan serranías angostas y alargadas constituidas por sedimentitas Cenozoicas de origen marino y continental. El relieve del macizo es un contorno elíptico con exposición de rocas ígneas volcánicas, donde se desarrolla una red de drenaje dendrítica. El contorno del edificio volcánico es claramente visible en las fotografías aéreas convencionales y en imágenes de satélite (Anexo 1. Imágenes 1, 2 y 3).
DESVIACIONES PRESENTADAS POR LA SOLUBILIDAD DEL NAPROXÉN EN MEZCLAS COSOLVENTES ETANOL + AGUA FRENTE AL MODELO LOGARÍTMICO-LINEAL DE YALKOWSKY Y ROSEMAN
Authors: Pacheco Diana P. , Martínez Fleming
Published: December 2023

En este trabajo se analizaron las desviaciones observadas en la solubilidad del naproxén en mezclas cosolventes etanol + agua a 25,0°C, respecto a la ecuación de solubilidad logarítmica-lineal propuesta por Yalkowsky y Roseman. Se obtuvieron desviaciones negativas en composiciones cosolventes entre 0,0 y 0,3, expresadas en fracción volumétrica de etanol, y positivas entre 0,3 y 1,0, siendo las desviaciones positivas mayores en magnitud comparadas con las desviaciones negativas. Los resultados se discutieron en términos de las posibles interacciones soluto-solvente y solvente-solvente, especialmente las relacionadas con la estructura del agua y la hidratación hidrofóbica.
DIVERSIDAD Y BIOGEOGRAFÍA PRELIMINAR DE LAS MARIPOSAS SALTARINAS (LEPIDOPTERA: HESPERIIDAE) DE COLOMBIA
Authors: González Montaña Luis Antonio , Andrade-C M. Gonzalo
Published: December 2023

Se obtuvieron datos para 231 especies en 119 géneros, depositados en la colección de entomología del Instituto de Ciencias Naturales, Universidad Nacional de Colombia, distribuidos principalmente en la región Andina en cuatro subfamilias: Pyrrhopygini (13 géneros, 27 especies), “Pyrginae” (53 géneros, 114 especies), Heteropterinae (1 género, 11 especies) y Hesperiinae (52 géneros y 79 especies). La biogeografía del grupo no puede explicarse por medio de la vicarianza o adoptar otras hipótesis biogeográficas, debido a la distribución simpátrica, lo cual implica la falta de relación entre especiación y alopatría. La hipótesis de “taxon pulses” puede explicar parcialmente la biogeografía del grupo.
MACROFAUNA EN SUELOS DE BOSQUE Y PAJONAL DE LA RESERVA NATURAL PUEBLO VIEJO, NARIÑO, COLOMBIA
Authors: Cerón Patricia , Montenegro Silvia , Noguera Elkin
Published: December 2023

Se compara la densidad y biomasa de la macrofauna de suelos con cobertura en bosque en ladera (Bosque 1), bosque en vertiente del cauce de quebrada (Bosque 2) y Pajonal, a similar altitud (3300-3350 m). La densidad es más alta en Bosque 2, seguida de Bosque 1 y Pajonal, con un promedio de 1.301, 581 y 293 ind.*m², respectivamente; se expresan diferencias estadísticas significativas entre Bosque 2 y Pajonal en el caso de densidad de Gasteropoda y Diplopoda. La biomasa es más alta en Pajonal (51%) donde Oligochaeta aporta el 68% del peso.
POTENCIAL ANTIOXIDANTE DE HOJAS Y CORTEZA DE BAUHINIA KALBREYERI HARMS: CONTRIBUCIÓN DE SUS FLAVONOIDES EN ESTA ACTIVIDAD
Authors: Ortiz Heidy F.
Published: December 2023

En este estudio se examinó la capacidad antioxidante y antinitrosativa de los extractos y flavonoides aislados a partir de hojas y corteza de Bauhinia kalbreyeri Harms (Casco de Vaca. Fabaceae). Los extractos mostraron alta funcionalidad antioxidante y antinitrosativa, en tanto que los flavonoides aislados dejaron ver habilidad para quelar metales e inhibir el NO. Se encontraron diferencias significativas entre los extractos entre sí, y entre ellos y las fracciones de flavonoides (p < 0.05). La actividad antioxidante de la planta parece fundamentarse en el conjunto de derivados fenólicos. Los resultados obtenidos indican que el potencial antioxidante de B. kalbreyeri es comparable con el del Hidroxitolueno butilado y el ácido ascórbico utilizados como antioxidantes por la industria alimentaria y farmacéutica.
Corrosion resistance of nitrogenated high-carbon martensitic stainless steel designed and produced at nitrogen low pressures
Authors: Coha-Vesga Pablo Miguel , Yuuki-Koga Guilherme , Mendoza-Oliveros Martín Emilio , Gil-Coury Francisco , Mujica-Roncery Lais
Published: December 2023

A new martensitic stainless steel with high nitrogen and carbon content at low pressures was designed using the CALPHAD method. The chemical composition of the steel was checked by optical emission spectrometry, obtaining 0.17 wt%-N and 1.33 wt%-C. Scanning electron microscopy (SEM) analyses were carried out for microstructural characterization. The properties of the steel were assessed by Rockwell hardness and potentiodynamic polarization tests in 0.6M NaCl. The steel showed maximum hardness values of 60 HRC, regarded as a hard material. However, the passive film formation was prevented by the high carbon content promoting excessive Cr-rich carbides.
Self-propelled Employees – Co-workership in Swedish Community Pharmacies
Authors: Hagsten Kenneth , Eriksson Andrea , Palm Kristina
Published: December 2023

In this article, work in Swedish pharmacies is examined.With the Nordic concept of co-workership as a frame, the aim is to examine how employees in pharmacies view and handle their work situations and the reasons behind them. Data were mainly collected with 20 qualitative semi-structured interviews in five different pharmacies. The data were organized and analyzed by using the content analysis process. In the studied pharmacies, it can be summarized as work was carengried out in a self-propelled way. Employees take an overall responsibility for the workplace, have ambition to help others and to be a part of a good team, while most of the work is carried out individually and independently.
An abnormal immediate increase in the intraocular pressure post-intravitreal injection in patients with Eales disease
Authors:   Norilsk Health Care, Norilsk-Russia, Olga Nikolai Anya Lev, Oskana Vladimir,
Published: December 2023

Introduction In 1880, British ophthalmologist Henry Eales described Eales' disease for the first time(1). Recurrent vitreous hemorrhaging is a hallmark of Eales' disease(2). The systemic anti- tuberculosis and the steroids usually control the disease and subsequently resolve the vitreous hemorrhage(3), but when the vitreous hemorrhage persists, anti-VEGF is an option(4).
Colonic Duplication Cyst with Gastric Heterotopia Haemorrhage and Mucosal Ulceration: A Case Report
Authors:   Pathologist, Department of Pathology, RML Mehrotra Pathology Pvt. Ltd, Nirala Nagar, Lucknow, Uttar Pradesh, India, Mehrotra Bandana
Published: December 2023

Present report relates to duplication of ascending colon with cyst formation along with ectopia of gastric glands in lamina propria of colon. Heterotopia or ectopia is defined as presence of an organ outside its normal anatomic site. Ileum is the commonest site of heterotopia in gastrointestinal tract. Rarely, heterotopia may involve ascending colon. In the present case, cyst wall also had a thickened area, measuring 1×1×0.5 cm, consisting of hypertrophic muscularis. Cyst wall showed ulceration in continuity with colonic columnar epithelium. In addition, lamina propria also showed mixed leucocytic infiltration. The lesion was finally diagnosed as duplication of ascending colon with cyst formation and heterotopia of benign gastric glands, hemorrhage and ulceration. Keywords: Large intestinal cyst with two corresponding parts, ectopia of gastric glands with ulceration and haemorrhage.
A Clinical Study on Complications of Port Site in Laparoscopic Surgeries at GGH
Authors:   Post Graduate, General Surgery, Venkatesh Dr Namburi Sai
Published: December 2023

The study aims to assess the morbidity associated with ports at the site of their insertion in laparoscopic surgery, to define, control risk factors for complications and their management. All patients who underwent laparoscopic surgeries, between 2022 and 2023, at GGH, Guntur, in the Department of General Surgery after receipt of written consent were included, and port sites were monitored for complications. Data collected and analysed by various statistical methods. Of the 100 patients undergoing laparoscopic surgery, 36 had developed complications directly linked to the port-site during a minimum follow-up of two-year period; port site discharge (PSD) was the most frequent, followed by port site infection, bleeding.
La declaratorio general de inconstitucionalidad y su función en el actual sistema de control de constitucionalidad y de protección de derechos humanos
Authors: Gómez Marinero Carlos Martín
Published: December 2023

La reforma a la Constitución Política de los Estados Unidos Mexicanos del 6 de junio de 2011 significó la modificación del principio de relatividad de la sentencia que rige en el juicio de amparo, según el cual esta solo protege a la parte que obtuvo la resolución favorable a su interés sin que los efectos pudiesen extenderse en beneficio de terceros ajenos a la controversia. La implementación de la declaratoria de inconstitucionalidad obedeció a que, en un momento, se estimó inaplazable la modificación del principio de relatividad a fin de evitar la vulneración a la supremacía constitucional e igualdad ante la ley, entre otros inconvenientes. En el presente estudio se analiza el desarrollo del principio de relatividad de la sentencia en el juicio de amparo; posteriormente, se valora la idoneidad de la declaratoria general de inconstitucionalidad para resolver los problemas que planteó el principio de relatividad; y, finalmente, se plantea la necesidad de transitar hacia una nueva declaratoria general de inconstitucionalidad en que se considere su función dentro del actual sistema de control de constitucionalidad y el modelo de protección de derechos humanos.
La reforma constitucional de 2020: ¿una nueva etapa de la construcción estatal en Rusia?
Authors: Abramova Marianna
Published: December 2023

El artículo representa en sí un análisis de las enmiendas a la Constitución de Rusia en 2020. Se analizan las causas de la pasada reforma, su procedimiento y particularidades. La autora llega a la conclusión de que debido a que la Constitución de 1993 fue adoptada en condiciones de una crisis política con imperfecciones estaba, desde entonces, condenada a sufrir cambios. En las nuevas condiciones sociopolíticas de los años 2010-2020, las autoridades rusas, por primera vez, decidieron establecer un diálogo con la sociedad. Este procedimiento obligó a las autoridades a proponer una votación nacional de las enmiendas y a apoyar los valores de la “soberanía incondicional” como objetivo de los cambios constitucionales. Al recibir la aprobación para reformar la Constitución, el régimen político de Vladímir Putin, vínculo de compromiso entre las élites transnacional y nacional, declaró una nueva etapa de la construcción estatal. ¿Se convertirá en realidad esta posibilidad? La respuesta a esta pregunta depende del futuro de la línea socioeconómica de las autoridades rusas.
Autoestima y Clima Académico: Análisis de las propiedades psicométricas de dos instrumentos que operacionalizan ambos constructos
Authors: Motta Florencia Anabel , Freiberg Hoffmann Agustin
Published: December 2023

El presente trabajo investiga las variables Clima Académico y Autoestima en estudiantes de la Facultad de Psicología de la Universidad de Buenos Aires. Se analizaron las propiedades psicométricas de dos instrumentos que operacionalizan ambos constructos. Por un lado, se examinó la versión para adultos del Self-Esteem Inventory (SEI) para evaluar Autoestima, y por otro, la Escala de Clima Social de Aula para Universidades (ECSA-U), que mide el Clima Académico. Primero, se adaptó lingüísticamente cada uno de los instrumentos al ámbito universitario local. En segundo lugar, se analizaron evidencias de validez de contenido y aparente mediante juicio experto y prueba piloto. Por sugerencias de los jueces se suprimieron tres ítems, uno correspondiente a la escala SEI y dos a la ECSA-U. Adicionalmente, se redactó un reactivo nuevo para la escala SEI. La prueba piloto con estudiantes verificó una adecuada comprensión de las herramientas. En tercer lugar, se analizó la estructura interna de las versiones resultantes de SEI y ECSA-U mediante un análisis factorial confirmatorio. Se testeó para ambas pruebas las estructuras de tres factores de segundo orden propuestas en los modelos originales, verificando un adecuado ajuste para ambos instrumentos. Además, se observó una adecuada consistencia interna para todas las dimensiones. Los resultados se discutieron a la luz de la teoría y de estudios psicométricos previos.
Escaping the ‘diaspora trap’: A narrative of struggle and resilience by an unskilled Zimbabwean migrant in South Africa.
Authors: Nzima Divane , Moyo Khangelani
Published: December 2023

Return migration and reintegration have become the latest points of discussion in the global migration studies literature. These discussions often focus on state level decision making and policy formulation without extended engagement with migrants themselves or paying attention to the everyday individual decisions made by “would-be” returnees. In this paper, we engage the notion of return migration in the African context, arguing that the return of migrants to their countries of origin is often indexed against a successful migration journey or a failed one. Such understanding takes account of structural factors outside the control of the individual migrant such as the material conditions in the origin and host countries as well as the expectations of their families and communities. We use data from a life history account of a male Zimbabwean gardener who typifies the material and cognitive struggles of migration and return. We pay attention to his lived experiences as he struggles to navigate expectations, joblessness, exploitation, and precarious work. We also discuss his resilience and determination to meet his migration goals as he meticulously plans his return to Zimbabwe where he intends to start a farming project. Through studying the experiences of this Zimbabwean migrant, we explore the agency with which he manages to circumvent structural constraints and diaspora entrapment which has been the case for many Zimbabweans in South Africa. While existing evidence indicates that skilled migrants are more prone to fall into the ‘diaspora trap’, this study gives insight into the experiences of unskilled migrants and the tools at their disposal to escape the ‘diaspora trap
Stabilizers on \(L\)-algebras
Authors: Rezaei Gholam Reza , Aaly Kologani Mona
Published: December 2023

The main goal of this paper is to introduce the notion of stabilizers in \(L\)-algebras and develop stabilizer theory in \(L\)-algebras. In this paper, we introduced the notions of left and right stabilizers and investigated some related properties of them. Then, we discussed the relations among stabilizers, ideal and co-annihilators. Also, we obtained that the set of all ideals of a \(CKL\)-algebra forms a relative pseudo-complemented lattice. In addition, we proved that right stabilizers in \(CKL\)-algebra are ideals. Then by using the right stabilizers we produced a basis for a topology on \(L\)-algebra. We showed that the generated topology by this basis is Baire, connected, locally connected and separable and we investigated the other properties of this topology.
Locating the community in a study on immigrant context: The case of Sri Lankan Sinhalese immigrants in Australia
Authors:   Charles Darwin University, Pathirage Jagath
Published: December 2023

Capturing the sense of community in an immigrant context is an arduous task, as it is visually absent, yet ideologically present. Consequently, it is represented in text as absence presence and its meaning is concealed unless the focus is community. Thus, the researcher’s challenge is not only collecting data but also reflecting and writing upon that data. In other words, it is about constructing our analysis, in terms of locating, experiencing, and narrating the meaning of ‘community’ in an anthropological pursuit. Based on two years of fieldwork with Sri Lankan Sinhalese transnational immigrants in Darwin Australia, the paper argues that the sense of community is an experiential entity for the researcher and informants. Also, it is imagined and fragmented yet subject to reproduction.
Relationship Between Relative Deprivation and Well-Being of Women: Role of Gender System Justification
Authors: TÜRKELİ Aras , TAYINMAK İlknur , DOĞRUYOL Sena
Published: December 2023

Subjective well-being is defined as individuals' evaluations of their happiness. Exposure to discrimination is a factor that negatively affects one's subjective well-being. Recent research indicated that women who are exposed to gender discrimination are affected negatively in terms of their subjective well-being. The present study aimed to examine the relationship between women's perception of gender-based relative deprivation and their subjective well-being and the mediator role of the tendency to justify the gender system in this relationship. The sample consisted of 328 voluntary female participants. The participants completed questionnaires, including Satisfaction with Life Scale (SWLS), Positive and Negative Affect Schedule (PANAS), Gender System Justification Scale, Relative Deprivation Scale, and Demographic Information Form. Obtained results indicated that as the gender-based relative deprivation increased, the level of subjective well-being decreased (B = -0.10, SE = 0.04). Moreover, the gender system justification mediated the relationship between gender-based relative deprivation and women's subjective well-being levels [lower limit (LL) CI: -0.1956, upper limit (UL) CI: -0.0209]. In conclusion, women who believe that they are subjected to gender-based discrimination may question the existing gender system in the society and in this framework, their subjective well-being levels are likely to decrease.