bluuebunny/crossref_metadata_2025 huggingface dataset:
Thermal entanglement in two-atom Tavis–Cummings model with taking into account the dipole-dipole interaction
Authors: Bashkirov Eugene K.
Published: July 2023

Background. Interest in the study of entangled states of systems of natural and artificial atoms (qubits) interacting with selected modes of microwave resonators is associated with their use as logic elements of quantum computers. At the same time, the most important task of the physics of quantum computing is the choice of the most effective mechanisms for manipulating and controlling the entangled states of qubits in such devices. Aim. The dynamics of the entanglement of two dipole-coupled superconducting Josephson qubits induced by a thermal noise of a coplanar resonator is studied for various initial states of the qubits. Methods. Based on the exact solution of the quantum Liouville equation for the whole density matrix of the system under consideration, the time behavior of the qubit entanglement parameter (negativity) is found for chaotic thermal, pure separable, and entangled initial states of qubits. Results. It is shown that the entanglement of qubits induced by the thermal noise of the resonator is possible for both the chaotic thermal states and separable states of qubits, except the case when both qubits are excited. It has also been found that, for small values of the dipole–dipole interaction parameter, taking this interaction into account leads to an increase in the degree of entanglement. For values of the dipole-dipole interaction parameter greater than some limit value, the opposite effect takes place. It is found that for entangled initial states of qubits, the inclusion of direct interaction has a small effect on the entanglement dynamics. It is shown that the initial coherence of qubit states can lead to a significant increase in the degree of their entanglement in the presence of a dipole–dipole interaction. Conclusion. The dipole-dipole interaction can be used as an effective mechanism for qubits entanglement manipulation and controlling.
Preliminary assessment of nuclear DNA content in Chondrilla (Asteraceae) plants of European Russia and Western Kazakhstan using flow cytometry
Authors:   Saratov State University, Parkhomenko Alena S. , Kuzmina Ulyana Sh. ,   Institute of Biochemistry and Genetics UFRC RAS, Musin Khalit G. ,   Institute of Biochemistry and Genetics UFRC RAS, Efimenko Savelii F. ,   Saratov State University, Epifanov Vladimir S. ,   Saratov State University, Kashin Aleksandr S. ,   Saratov State University
Published: July 2023

Preliminary data on the genome size of representatives of the genus Chondrilla (Asteraceae) of European Russia and Western Kazakhstan were obtained using flow cytometry. Among all studied specimens of the genus, for specimens of C. ambigua and C. pauciflora, a direct dependence of the genome size on the number of chromosomes was established. In our study, the DNA content of the diploid C. ambigua was 2С = 1.69 pg, and that of the triploid C. pauciflora was 2С = 2.65 pg. 2С values are within 2.29–2.69 pg in most specimens of the genus Chondrilla (typical for 13 out of 23 specimens) belonging to the following taxa: C. paucifora, C. laticoronata, C. brevirostris, C. canescens, C. graminea, C. latifolia, C. juncea. Most likely, they are triploids, and in many cases with a number of chromosomes deviating from a multiple of the main number of chromosomes. The C. latifolia sample from the population of the Kamyshinsky district of the Volgograd region showed two peaks on the histogram of the relative fluorescence intensity, corresponding to two values of the relative DNA content, 1.68 and 2.58 pg, i.e. it turned out to be a mixoploid with two levels of ploidy (2n = 2x = 10 and 2n = 3x = 15). The diversity of genome sizes within the genus can be explained by the previously established high variability in the number of chromosomes associated with aneu- and mixoploidy.
POLYSEMY TYPES AND LEVELS OF FRENCH LINGUISTIC TERMS (based on the material of the French language)
Authors: Zolotukhin Denis S.
Published: July 2023

The lexical analysis of scientific terms in the works of French-speaking linguists (from F. de Saussure to modern researchers) allows identifying the epistemological reasons for the development of semantics and the formation of polysemy of terminological units. The semantic features of the considered terms determine a new classification of polysemy types depending on the level of terminological abstraction.
HYDRONYMS OF ADYGEA AS A SOURCE OF ETHNOCULTURAL INFORMATION
Authors: Sokur Elena A. , Bedanokova Zuleykhan K. , Adzinova Anzhela A.
Published: July 2023

The article is devoted to the study of a group of regional hydronyms that have lost their connection with the appellative. It is established that the study of the etymology, semantics of a hydronym, the definition of its original appearance is impossible without the involvement of ethnocultural material, which confirms the need to use an integrated approach to the study of toponyms, since such an approach makes it possible to correctly describe units and allows for the «reconstruction» of the regional toponymic space, toponymic field. Purpose: The description of the toponymic space of the region (the Republic of Adygea) and hydronyms in particular involves a detailed analysis of all units, allowing to reflect the entire toponymic picture. In the toponymy of the region, there are names that have lost their connection with appellatives. The establishment of etymology, semantics and the initial appearance of such units is impossible without the involvement of ethno-cultural material. Such an approach provides an opportunity that makes it possible to carry out a correct description of units and allows for the «reconstruction» of the regional toponymic space. Methods: The basis for the correct description of the etymology and semantics of names of specific geographical objects is the conservatism of toponymic models characteristic of the language. The research was conducted using phonetic, word-formation, etymological, semantic analysis. The basis for solving ethnolinguistic problems was the combination of onomasiological and semasiological aspects of research. Results: To establish the etymology of a toponym, it is necessary to take into account the principles of nomination characteristic of the self-consciousness and worldview of the people inhabiting a certain territory, reflected in culture and language, as well as the place of a specific name in the systemic organization of the regional toponymic field. Ethnocultural information captured in toponymy is what helps a linguist researcher to determine the principles of nomination characteristic of a particular language reflecting the worldview of the people. Discussion: The description of the toponymic space of the region (not only the Republic of Adygea), taking into account the system relations and the field approach, the identification of the main nomination techniques, clarification of the etymology, semantics of individual geographical objects traditionally associated with the regional landscape and being components of the regional onomastic field, seems very relevant and promising. The detailed analysis of hydronyms allows reconstructing the entire toponymic space of the region, makes it possible to consider the entire system as a whole.
Credit application systems for investments in agriculture and livestock in rural areas in Latin America
Authors: Herrero Olarte Susana
Published: July 2023

A lack of resources to improve inputs and tools is the fundamental cause of the lack of food security, according to families and organizations interviewed in marginalized and isolated communities (MICs) in Latin America. Families living in these types of communities have access to inputs either through donations or through credits. Marginalization and isolation tend to favor opting for credits because it becomes imperative to be able to rely on sustainable interventions, due to the little attention that these types of communities receive from government offices and development cooperation agencies. Among the methodologies for accessing credits in MICs, special mention should be made of credit lines, solidarity group programs (SGPs), and local financial structures (LFSs) or community banks. The analysis performed herein concludes that LFSs or community banks yield the best results.
Validación de curvas antropométricas de crecimiento intrauterino: Hospital Vicente Corral, Cuenca, Ecuador, 2013
Authors: Díaz-Granda Ruth C. , Díaz-Granda Lourdes E.
Published: July 2023

Se realizó un estudio transversal en el Hospital Vicente Corral de Cuenca (Ecuador) en febrero-agosto de 2013, para la valoración de las curvas intrauterino del Centro Latinoamericano de Atención Perinatal (CLAP), Olsen, Alarcón-Pittaluga, Lubchenco-Bataglia y Babson-Benda con el objetivo de identificar el patrón antropométrico de crecimiento fetal más adecuado para la clasificación de los recién nacidos hasta que el Ecuador cuente con patrones propios. La muestra se conformó con neonatos, cuyas madres eran menores de 21 años. Se incluyó a niños nacidos vivos, con edad gestacional entre 22 y 42 semanas cumplidas y que contaron con todas las medidas antropométricas. Se excluyó a niños con malformaciones congénitas mayores. Se valoraron la sensibilidad, especificidad e índice kappa de Cohen de las curvas antropométricas estudiadas según las variables peso, talla, perímetro cefálico y sexo del recién nacido. Las curvas del CLAP (36.6-43.5%) y de Olsen (37.0-40.9%) identificaron porcentajes similares de PEG15. Las curvas de Babson-Benda detectaron muy pocos PEG (1.3-2.8%). Para la variable peso: las curvas de Olsen presentaron alta sensibilidad (81.8-97.6%), muy altas especificidad (91.8-97.5%) e índice kappa (0.807-0.873). Las curvas de Alarcón-Pittaluga tuvieron muy buena sensibilidad (98.2-99.5%); buena especificidad (74.9-77.9%) e índice kappa (0.707-0.717). Las curvas de Lubchenco-Bataglia presentaron baja sensibilidad (40.0-42.8%), muy buena especificidad (99.3-100.0%) y moderado índice kappa (0.449-458). Las curvas de Babson-Benda presentaron muy baja sensibilidad (3.5-6.4%), muy buena especificidad (100.0%) y pobre índice kappa (0.044-0.072). Se concluye que se deben utilizar las curvas antropométricas de Olsen hasta que el Ecuador cuente con curvas propias. No se recomienda utilizar las curvas de Babson-Benda ni de Lubchenco-Bataglia.
Depositional environments as a framework for genetic classification of the basic criteria of petroleum potential
Authors: Stoupakova Antonina V. , Korobova Nataliya I. , Mordasova Alina V. , Sautkin Roman S. , Sivkova Ekaterina D. , Bolshakova Maria A. , Voronin Mikhail E. , Suslova Anna A. , Karpushin Mikhail Yu. , Kozhanov Dmitry D. , Makhnutina Maria L. , Shevchuk Nadezhda S. , Bogatyireva Irina Ya. , Chupakhina Vitalia V.
Published: July 2023

Most classifications of reservoirs, seals and source rocks based on the ability of the rock to generate, accumulate and preserve hydrocarbons, and the genesis of rocks is not always taken into account. The article presents a ranking scheme for continental, coastal-marine and marine sedimentation environments that determine the genesis and properties of the basic criteria of petroleum potential – source rocks, reservoirs, seals and pinch-out traps.

Rocks, which can consider as source rock, reservoirs and seals are formed in each depositional environment. However, their structure, mineral composition and distribution area will differ from each other depending on the sedimentary environment and conditions. A combination of elements of the hydrocarbon system formed, corresponding to the sedimentation environment and are characteristic for basins of various types. Continental environments are favorable for the formation of reservoirs and local seals, while the accumulation of source rocks limited by lacustrine, floodplain, and swamp facies. The coastal-marine environment is favorable for the formation of all the basic criteria of petroleum potential, and the transgressive-regressive cyclicity determines the interbedding of source rocks, reservoirs and seals in the section. The marine depositional environments are most favorable for the formation of regional seals and source rocks, including high-carbon formations.
The proposed ranking scheme of sedimentary environments and the basic criteria of petroleum potential genetically related to them is applicable in system analysis and selection for analogues of petroleum system elements in sedimentary complexes formed in similar depositional environments.
Epidemiology and Outcomes of Dialysis-Requiring Acute Kidney Injury at Chris Hani Baragwanath Hospital
Authors: Variava Mohammed , Mashabane Mduduzi , Bentley Alison , Naicker Saraladevi
Published: July 2023

Background: Acute kidney injury (AKI) occurs commonly within the hospital setting and is associated with a high rate of morbidity and mortality. Factors such as social, economic and ethical dilemmas are closely associated with initiation of dialysis in the public health sector.

Methods: A retrospective review of 324 patients presenting with kidney failure who were initiated on acute dialysis at the Chris Hani Baragwanath Hospital was carried out over a 2-year period from July 2009 to June 2011.

Results: The mean age at presentation was 40 ± 13 years; 57% of patients were male and 92% were Black. HIV positivity occurred in 26% of patients. The leading indications for acute dialysis included decompensated chronic kidney disease (38.9%), acute tubular necrosis (ATN) (38.3%), HIV-related kidney disease (13.6%), malaria (5.7%), pregnancy-related kidney disease (7.4%) and glomerulonephritis (7.4%). ATN was the predominant cause of AKI in HIV-positive patients. The overall renal recovery rate was 31%, and the overall mortality rate was 23%. About 44.6% of patients had chronic consequences, with 23% being transferred to chronic renal replacement therapy (RRT) and 21.6% transferred to renal outpatients (ROPD) with cessation of dialysis; 1.4% were lost to follow-up. While HIV-positive patients had a better renal recovery rate compared to HIV-negative patients (36% versus 26%; p < 0.0001), they had a higher mortality rate compared to their HIV-negative counterparts (34% versus 19%; p < 0.0001).

Conclusion: AKI remains a common presentation that often requires dialysis, a precious resource in an already overburdened health system, and occurs at similar rates in HIV-positive and HIV-negative patients. The underlying aetiology of AKI at Chris Hani Baragwanath resembles that of other developing countries with ATN, malaria, sepsis and pregnancy-induced kidney injury amongst the leading causes. High mortality rates were observed in patients with ATN, in both HIV-positive and HIV-negative patients.
Introducción a la lógica
Authors: Trelles Montero Óscar , Fuentes Miguel Humberto , Montealegre Scott Juan , Rosales Papa Diógenes
Published: July 2023

Introducción a la Lógica busca familiarizar al lector con el manejo de los conceptos básicos de la lógica proposicional y cuantificacional, relacionando en estas dos partes los aspectos semánticos y sintácticos. La primera parte del texto, desarrollada por el profesor Óscar Trelles Montero, contiene la vinculación del lenguaje simbólico con los lenguajes naturales, tanto en la lógica proposicional como en la lógica cuantificacional. El instrumento de la decisión usado en esta parte es el método de los diagramas semánticos. La segunda parte, expuesta por el profesor Diógenes Rosales Papa, aborda el método de la deducción natural, con el objeto de demostrar las principales fórmulas válidas de la lógica proposicional y cuantificacional.
Ensayos sobre democracia, educación y el experimento americano
Authors: Slater Robert
Published: July 2023

El objetivo esencial de todo programa educativo es el servicio a la comunidad y parte del mismo, el estímulo a sus miembros en el reconocimiento y la práctica de los valores y principios que la sustentan. Entre ellos, el estudio de la democracia y de su liderazgo merecen una investigación y debate especial por las muchas y variadas interpretaciones que han recibido estos conceptos a lo largo de los últimos siglos de la Historia de Occidente, tanto en nuestra América Latina, como en la América Sajona y en Europa. La publicación del doctor Slater, Ensayos sobre democracia, educación y el experimento americano. representa un aporte a la reflexión sobre estos temas de interés para educadores y público en general.
Development of DNA Barcoding Signatures for Pink Bollworm in Cotton Ecosystem Based on the Mitochondrial COI Gene
Authors: Shree I. Padma , Muthuswami M. , Boopathi N. Manikanda , Senguttuvan K. , Rajeswari S.
Published: July 2023

Background: Species identification is a highly specialized, time-consuming and rely significantly on the diagnostic features that are present mostly in the adult life stages which constrains the recognition, as many specimens lack these characters. Methods: In this study, we used molecular strategy to develop markers for the identification of the pink bollworm in the cotton ecosystem. This research was conducted at the Department of Agricultural Entomology and Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu State, during 2021 and 2022. DNA sequences of the cytochrome c oxidase subunit I gene were used to successfully develop DNA barcoding signatures for pink bollworm. Result: Using the MUSCLE alignment method in MEGA X software and by the use of phylogenetic tree, the sequences were segregated into Clade 1 (had a sequence length of 264 bp) and Clade 2 (had a sequence length of 164 bp) and for each clade DNA barcoding signatures were developed. With such molecular identity would be simple, rapid, precise and more reliable to identify Pectinophora gossypiella, as it is difficult to accurately identify this bollworm during its early life stages.
Comparative Analysis of Sharia Stock Screening Methods in Indonesia, Malaysia, and the United States
Authors: Huda Eva Nurul , Suseno Priyonggo
Published: July 2023

This study aims to find out and understand how the sharia stock screening model applies in Indonesia, Malaysia, and the United States and find a harmonization solution. The method used in this study is descriptive-qualitative through a literature study approach. Research data was obtained from various sources both online and offline, such as journal articles, books, and websites related to the screening of Sharia-compliant stocks, to be further analyzed using the content analysis method. The results show that there are differences in the screening criteria for sharia stocks on the Indonesian Stock Exchange, the Malaysian Stock Exchange, and the American Stock Exchange, both qualitatively and quantitatively. This difference is seen as a natural thing in Islamic teachings because it is in the realm of muamalah fiqh, which of course is adapted to the conditions of the people of each country. However, it is necessary to consider generalizing the implementation of strict and uniform sharia stock screening in order to increase understanding, interaction, and economic cooperation among Muslim countries at the global level.
UNA APROXIMACIÓN DE LA CURVA DE CAPACIDAD DINÁMICA Y SU APLICACIÓN A LA EVALUACIÓN SÍSMICA DE ESTRUCTURAS
Authors: Bañuelos García Francisco Héctor , Ayala Milián A. Gustavo , Escamilla García Marco Antonio
Published: July 2023

En este artículo se presenta un procedimiento simplificado para la evaluación sísmica de estructuras fundamentado en la curva de capacidad dinámica, y en su validez como una propiedad estructural asociada a un tipo de demanda sísmica. El procedimiento permite estimar el desempeño de una estructura ante demandas sísmicas correspondientes a un espectro de peligro uniforme mediante una aproximación de la curva de capacidad dinámica construida a partir de análisis modales espectrales asociados a demandas de intensidad creciente. Para considerar la reducción de rigidez y la disipación de energía debida a histéresis se resuelve un oscilador de un grado de libertad con las características del modo fundamental. La aproximación de la curva de capacidad dinámica obtenida a partir del procedimiento propuesto se valida comparándola con la obtenida de análisis dinámicos paso a paso ante demandas de intensidades crecientes, para dos estructuras de concreto reforzado, un marco plano de 12 niveles irregular en elevación, y un puente continuo tipo viaducto.
Commerce et Autonomisation des Femmes en Zone CEMAC
Authors: Mbang Marthe Olga
Published: July 2023

Le présent article a pour objectif de montrer la contribution du commerce international à l’amélioration de l’autonomie des femmes dans les pays de la zone CEMAC (Communauté Economique et Monétaire de l’Afrique Centrale) sur la période 1980-2020 et proviennent de la Banque Mondiale (2020). La modélisation de la relation entre le commerce et l’autonomisation de la femme s’inspire de l’équation de la demande relative des facteurs, formulée par Brown et Christensen (1981). Le test de Hausman montre que l’estimateur approprié pour l’étude est le Pooled Mean Group (PMG). Les résultats dévoilent que le développement du commerce international augmente significativement la part relative de la main d’œuvre féminine et donc l’autonomisation des femmes à long terme en raison des emplois qu’il crée dans le secteur extérieur. Les qualifications de plus en plus croissantes des femmes semblent leur permettre de saisir les opportunités d’emplois dans le secteur extérieur en zone CEMAC. Il est donc recommandé de poursuivre les efforts de création d’une zone de libre-échange intercontinentale africaine.

 

This study aims to show the contribution of international trade to the improvement of the autonomy of women in the countries of the CEMAC (Central African Economic and Monetary Community) zone over the 1980-2020 period and come from the World Bank (2020). The modeling of the relationship between trade and female empowerment is inspired by the relative factor demand equation formulated by Brown and Christensen (1981). The Hausman test shows that the appropriate estimator for the study is the Pooled Mean Group (PMG). The results show that the development of international trade significantly increases the relative share of female labor and therefore the long-term empowerment of women because of the jobs it creates in the external sector. The increasing qualifications of women seem to enable them to seize job opportunities in the external sector in the CEMAC zone. It is therefore recommended authority continue efforts to create a zone for the creation of an African intercontinental free trade area.
Strangulated Richter's Hernia in an Indirect Inguinal Hernia
Authors: Bouali Mounir , Falousse Kabira , El Wassi Anas , El Bakouri Abdelilah , El Hattabi Khalid , Bensardi Fatima Zahra , Fadil Abdelaziz
Published: July 2023

Introduction: Richter's hernia is an abdominal hernia in which part of the circumference of the intestine is incarcerated in the hernia sac. Case report: We report a case of Richter's hernia incarcerated through an indirect inguinal hernia. The patient presented with an occlusive syndrome with an imaging appearance of a right inguinal hernial strangulation bowel obstruction. Surgical exploration revealed the presence of an indirect inguinal Richter's hernia with a viable bowel. Discussion: Richter's hernia is a rare hernia of the abdominal wall, it is known by the unusual clinical presentation and the often erroneous late diagnosis that leads to high morbidity and mortality rates. Therefore, with high clinical suspicion, an abdominal CT scan is recommended to establish a prompt diagnosis, as timely surgical intervention is important to reduce mortality. Conclusion: Surgery is the basis of its treatment, but prompt surgical intervention remains. Assessment of bowel viability is an essential part of the repair.
Assainissement et Risques de Maladies dans la Commune vi du District de Bamako, Mali
Authors: Ibrahima Aissata , Traore Souleymane Sidi , Mathias Dolo Amagoron Dit
Published: July 2023

L’urbanisation rapide et incontrôlée de la ville de Bamako pose d’énormes difficultés d’accès aux infrastructures urbaines notamment celles liées à l’assainissement. L’absence de ce service de base engendre de mauvaises conditions d’hygiène, source de développement des germes pathogènes, responsables de nombreuses maladies. L’objectif de ce travail est d’analyser la relation entre l’absence ou les insuffisances du système d’assainissement et les risques sur la santé des populations en commune VI du District de Bamako. Une enquête a été conduite auprès d’un échantillon initial de 329 ménages. Un tri a été faite pour sélectionner uniquement les ménages ayant déclaré des cas de maladie les 30 jours précédant les enquêtes. Les informations collectées auprès de ces ménages ont été saisies, traitées et analysées selon les méthodes de statistique descriptive. Les résultats issus des analyses ont montré que dans la Commune VI, il existe un déficit du système d’évacuation de déchets à travers leur mauvaise gestion et une mauvaise utilisation des poubelles. Cette situation s’accompagne de risques de maladies. Il importe en effet de réaliser de véritables infrastructures d’assainissement qui cadrent bien avec l’évolution spatiale de la commune pour le bien-être des populations. Ces résultats serviront dans les prises de décisions afin de produire un meilleur cadre de vie aux populations de la Commune VI.

 

The rapid and uncontrolled urbanization of Bamako city has induced many problems with access to urban infrastructure, particularly those related to sanitation. The missing of this basic service leads to poor hygiene conditions, a root for the development of many pathogenic germs and diseases. The objective of this research was to analyze the relationship between the absence or inadequacies of the sanitation system and the risks to the health of the populations in commune VI of the District of Bamako. A survey was conducted with an initial sample of 329 households. Sorting was done to select only the households having declared cases of illness in the 30 days preceding the surveys. The collected information from this household was entered, processed, and analyzed using descriptive statistics methods. The results showed that in the area, there is a deficit in the waste disposal system through the mismanagement and misuse of garbage cans. This situation is accompanied by the risk of disease. It is indeed important to create real sanitation infrastructures that fit well with the spatial evolution of the municipality for the well-being of the population. These results will be used in decision-making in order to produce a better living environment for the populations of Commune VI.
Pemanfaatan Citra Sentinel-2A untuk Identifikasi Sebaran Erosi dan Vegetasi di Sub DAS Bengawan Solo Hilir
Authors: Fauziah Jihan Ratna , Kurnianto Fahmi Arif
Published: July 2023

Erosi lahan yang terjadi di Daerah Aliran Sungai merupakan hal yang sering terjadi. Tujuan dilaksanakannya penelitian ini adalah untuk mengidentifikasi sebaran erosi dan vegetasi di Sub DAS Bengawan Solo hilir yang membatasi wilayah Kabupaten Gresik dan Kabupaten Lamongan. Metode penelitian yang dilakukan menggunakan survei dan memanfaatkan Citra Sentinel 2-A dengan analisis komposit citra yang menggunkan band 8/4/3 dan analisis indeks vegetasi (NDVI) untuk dapat membedakan objek vegetasi dan bukan vegetasi secara akurat. Hasil penelitian menunjukkan bahwa proses erosivitas lahan DAS dipengaruhi oleh derasnya air serta pengaruh dari aktivitas manusia dalam pengolahan lahan terutama dalam bidang pertanian, irigasi dan pemukiman penduduk sehingga dapat memicu terbentuknya erosi baru. Aliran air sungai ini juga memiliki pengaruh atas kualitas fisik air tanah di sekitarnya. Hasil komposit citra menunjukkan bahwa meskipun di bantaran sungai memiliki indeks vegetasi cukup tinggi, tetapi pada radius 100-200 meter banyak ditemukan lahan  terbangun dan badan air berupa tambak. Tingginya lahan terbangun dan tambak tersebut dapat meningkatkan erosi dan air limpasan permukaan.
Pengaruh Model Pembelajaran Collaborrative Creativity (CC) Berbasis Daring & Luring Terhadap Kemampuan Kolaboratif Ilmiah dan Hasil Belajar Geografi Siswa
Authors: Septarianto Muhammad Fajar , Astutik Sri , Kurnianto Fahmi Arif , Kantun Sri , Pangastuti Era Iswara
Published: July 2023

Penelitian ini dilatarbelakangi dari rendahnya kemampuan kolaboratif ilmiah dah hasil belajar siswa diakibatkan oleh penggunaan model pembelajaran yang masih monoton dan konvensional. Tujuannya untuk mengkaji adanya pengaruh pembelajaran Collaborrative Creativity (CC) berbasis daring & luring terhadap kemampuan kolaboratif ilmiah dan hasil belajar siswa. Penelitian ini dilakukan di SMA Ma’arif NU Al Ikhlas Al Mukhdlor Yosowilangun, jenis penelitian eksperimen dengan desain post test only control group design. Hasil penelitian menunjukkan bahwa pembelajaran Collaborrative Creativity (CC) berbasis daring & luring terhadap kemampuan kolaboratif ilmiah dan hasil belajar siswa dengan hasil uji T yang menunjukkan sig.2-tailed 0,000. Pembelajaran CC mampu meningkatkan kemampuan kolaboratif ilmiah dan hasil belajar siswa, yang dibuktikan dengan kelas eksperimen memiliki bilai lebih tinggi daripada kelas kontrol.
Repair methodology of a piezoelectric injector utilizing components obtained from selective decomposition
Authors: Stoeck Tomasz
Published: July 2023

The paper presents an example of regeneration of a common rail piezoelectric fuel injector, which was carried out with using used parts. The most important stages of maintenance activities are listed, as well as the types of diagnostic tests performed on separate test benches. The obtained results indicate that this process can be effectively carried out with existing technological problems and lack of support from the manufacturer. At the same time, it was shown that, contrary to popular belief, cannibalisation does not have to be limited only to minor elements, but also to key components important from the point of view of the satisfactory technical condition and correct working of the fuel injector during further operation
Volatile compounds identified in traditional croatian cow’s and goat’s cheeses matured in lambskin sack determined by GC-MS analysis
Authors: Radonis Ani , Zekic Marina
Published: July 2023

Cheeses ripened in animal skin sacks belong to traditional cheeses that are strongly connected to the culture and history of the country from which they originate. Their main specificity is anaerobic ripening in an animal skin sack. The aim of this study was to determine the volatile compounds of Croatian cheeses in a sack of lamb skin produced from either raw cow’s or goat’s milk and relate them to the aroma of these traditional cheeses. Volatile compounds were extracted by headspace solid-phase microextraction (HS-SPME) and ultrasonic solvent extraction (USE) and analysed by gas chromatography-mass spectrometry (GC-MS). A total of 32 volatiles were identified in the cheese samples, including 12 carboxylic acids, 8 esters, 6 alcohols, 3 ketones, 2 hydrocarbons and 1 aldehyde. In the samples obtained by HS-SPME, the fatty acids and alcohols were the most abundant, while in the samples obtained by USE, the fatty acids were the most abundant.
Synthesis of quercetin functionalized chitosan and determination of antioxidant properties
Authors: Gonta Maria , Duca Gheorghe , Sirbu Elena , Robu Stefan , Mocanu Larisa
Published: July 2023

This paper is dedicated to the synthesis of a copolymer with reducing properties obtained by functionalizing chitosan with quercetin and determining the antioxidant activity of the derivatives obtained depending on the molar mass of the polymer. For this purpose, low molecular weight chitosan was obtained by oxidizing commercial chitosan with hydrogen peroxide and further functionalization with quercetin by the covalent grafting method. The functionalization process was performed through the following steps: functionalization of chitosan with ethyl chloroformate to increase the reactivity of the amine group to the hydroxyl group of quercetin and grafting the quercetin molecule to the synthesized intermediate. The comparative antioxidant properties of the composite obtained by grafting technical chitosan with quercetin and by grafting low molecular weight chitosan were studied by the DPPH (2,2-diphenyl-1-picrylhydrazyl radical) method. The obtained results indicate that a decrease in the molecular weight of chitosan contributed to its grafting with quercetin. As a result, the functionalized polymer composite acquired a higher antioxidant activity and can be successfully used to inhibit the oxidation of various organic substrates in the cosmetic, food and pharmaceutical industries.
Comparación de la radiografía panorámica con la tomografía computarizada de haz cónico para evaluar la relación entre los dientes posteriores y el seno maxilar
Authors: Rojas Jhonnathan , Sotelo Aldo , Ruiz Vilma
Published: July 2023

Objetivo: Comparar la radiografía panorámica (RP) con la tomografía computarizada de haz cónico (TCHC) para evaluar la relación entre los dientes posteriores y el seno maxilar (SM). Material y métodos: Se analizaron 533 dientes posteriores del maxilar superior en 80 sujetos sometidos a RP y TCHC en el Centro Dental Docente (CDD) de la Universidad Peruana Cayetano Heredia (UPCH), durante el periodo 2016-2019. Se realizó un estudio transversal, observacional, descriptivo y retrospectivo. Los datos y las observaciones se registraron en una ficha de datos diseñada para este estudio. Resultados: La relación diente-seno maxilar más frecuente fue la clase 0 (ápice radicular sin contacto con el piso del seno maxilar [PSM]), con predominio del sexo femenino, del rango etario de 48-57 años y en ambos premolares. En la clase 0 se encontró una mayor concordancia entre ambas técnicas de imagen. La RP fue muy precisa para detectar la clase 0 en ambos premolares; sin embargo, mostró una precisión muy pobre para detectar la clase 3 (PSM curvado hacia abajo y ápice por encima del mismo) en todos los tipos de dientes. Conclusiones: Las RP y TCHC presentan baja concordancia en relaciones de clase 3, dado que todos estos casos observados en RP muestran una clasificación menor en TCHC; por lo tanto, la RP es suficiente para proporcionar la verdadera relación entre premolares y SM, pero en el caso de molares es necesaria una TCHC.
Infección oral y cervicofacial por agranulocitosis secundario debido al tratamiento con medicación antitiroidea: Reporte de Caso
Authors: Paredes Vilchez Renzo Angel , Concha Cusihuallpa Hiroshi , Carrión Gamarra Henry , Arteaga Ramirez Katherine , Santiago Valverde Juver Edinson , Campos Valenzuela Omar , Gonzales Takano Kenyi Koichi
Published: July 2023

La agranulocitosis es el recuento bajo de glóbulos blancos (neutrófilos), que puede ser inducida por tratamientos con algunos medicamentos como los antitiroideos, que ocasionan manifestaciones orales como úlceras o necrosis gingival difusa. Se presenta el caso de una paciente mujer de 26 años, con antecedente de hipertiroidismo, quien acude a emergencia del Hospital Nacional Alberto Sabogal Sologuren por presentar tumefacción en la hemicara izquierda, asociada a disfagia, múltiples lesiones ulceradas en mucosa oral, con compromiso de tejido óseo, fiebre y malestar general. Luego de los exámenes auxiliares, se categoriza como una infección oral y cervicofacial por agranulocitosis debido al tratamiento con el metimazol. La literatura mundial reporta casos de agranulocitosis como efecto adverso del consumo de drogas antitiroideas, con reporte de manifestaciones orales; sin embargo, pocos casos evidencian compromiso cervical. Por lo cual se presenta este caso poco usual desde su diagnóstico hasta el tratamiento.
Resorción intracoronal preeruptiva: reportes radiográficos y tomográficos de cuatro casos
Authors: Pérez Lip Iván Eduardo
Published: July 2023

La resorción intracoronal preeruptiva (RIPE) se presenta como un defecto ubicado en la dentina coronal próxima a la unión amelodentinaria en la corona de un germen dentario. Este defecto de profundidad y ubicación anteroposterior variables solo puede ser diagnosticado mediante radiografías extraorales, intraorales y tomografías dentales. La etiología no ha sido determinada, pero los estudios de histopatología sugieren que este defecto sería una secuela de resorción dentaria. En el presente manuscrito, se presentan radiografías panorámicas y tomografías de haz cónico (THC) de cuatro pacientes con dicha afección, en las que encontramos los defectos dentinarios y discontinuidades en el esmalte adyacente, por lo que se discutirá la utilidad de la THC en el diagnóstico y la planificación de tratamiento de los casos con RIPE.
Aula invertida utilizada en la enseñanza de la estomatología: una aproximación
Authors: Saravia-Rojas Miguel Ángel
Published: July 2023

El aula invertida es una estrategia didáctica en la cual se brinda a los estudiantes videos, podcast, entre otros, para que sean revisados con anticipación, de modo que cuando se realice la actividad presencial o virtual se profundicen y aclaren los conceptos pertenecientes a la información brindada previamente. El aprendizaje invertido busca generar una oportunidad de cambio en la dinámica de la enseñanza; promueve el aprendizaje activo dentro del ambiente de clase; y busca que el aprendizaje se focalice en el estudiante. En el presente documento, se hace una revisión de los aspectos más notables del aula invertida y sus diferencias con el método del aula magistral; asimismo, se revisa su impacto en la odontología y se plantean los retos, los compromisos y las dificultades que puede tener su implementación.
Makine Öğrenmesi Tekniklerinin Bütçe Verimliliğine Uygulanması Üzerine Bir Çalışma (A Study on the Application of Machine Learning Techniques to Budget Efficiency)
Authors: Demirel Göksel Kıvanç , Şen Ali
Published: July 2023

Amaç -Bu çalışma, pazarlama amacıyla işletmeye faydalı olabilecek müşteri kitlesini, yüksek miktardaki satış ve promosyon verilerinden faydalanarak seçmeyi ve puanlandırmayı amaçlamaktadır. Yöntem -Bu amaç doğrultusunda, markalara ve perakendecilere müşteri verileri üzerinden hizmet sağlayan Dunnhumby şirketinin bilimsel amaçlarda kullanılmak üzere sunmuş olduğu ve haftalık kahvaltı ürünlerinden elde edilen “Breakfast at the FRAT” başlığı altında toplanılan satış bilgileri çalışmanın deney veri setini oluşturmuştur. Pazarlama bütçesini tüm müşterilerine harcamak yerine sadece potansiyel müşteri kitlesine harcamasına imkân tanıyan XGBoost algoritması kullanılarak pazarlamanın daha etkin ve verimli olabileceği müşterilerin belirlenmesine yönelik özgün bir model önerilmiştir. Bulgular -Analizi yapılan veriler 2011 ile 2019 yılları arasında 156 haftalık bir süreyi kapsamaktadır. Özellik sayısının ve karmaşıklık durumunun minimuma indirgendiği çalışma kapsamında, model performansına ait ölçüt parametreleri yüksek başarı oranlarına sahiptir. Bu oranlar pazarlamada kullanılacak bütçenin uygun müşteri kitlesine harcanmasına yönelik oluşturulan model için kullanılan algoritmanın uygun olduğunu ortaya koymaktadır. Tartışma -Büyük verilerin makine öğrenmesi teknikleri ile analiz edilmesi sonucu ortaya çıkan bulguların veri bilimine katkılar sunacağı ve çalışmada izlenilen yöntemin işletmelerin finansal açıdan tahmin ve öngörüler yapabilecekleri bir bütçe destek sisteminin altyapısını oluşturacağı düşünülmektedir.Gerçek dünya verilerinden elde edilen ve yapılan satışlar üzerinden birkaç özellik grubunun etkisi kullanılarak pazarlama için ayrılacak bütçenin verimliliğinin arttırılmasına yönelik bu çalışmada, en iyi tahminin yapıldığı sınıflandırma algoritmasının belirlenerek veri bilimine katkı sağlanması ve rehberlik etmesi mümkündür. Yapılan çalışmanın altyapısının daha da geliştirildiği bir modelin işletmeler tarafından kullanılarak iş dünyasına katkı sağlanma imkanı da vadır.
Yöneticilerin Bakış Açısı ile Z Kuşağı Çalışanların Liderlik Beklentileri (Leadership Expectations of Generation Z Employees from Managers Perspectives)
Authors: Saracel Nüket , Bilgiç Elif , Topal Fatma , Tezer Kozak Gözde , Kütükcü Hikmet
Published: July 2023

Amaç:Bu çalışmanın amacı, yöneticilerin bakışı ile Z kuşağı çalışanların ne tür liderlik tarzı beklentisi içinde olduklarını ortaya koymaktır.Yöntem:Bu araştırma, nitel araştırma yöntemlerinden mülakat yöntemi ile gerçekleştirilmiştir.Araştırmanın evreni, Z Kuşağı çalışanları yönetmiş veya halen yönetmekte olan tüm yöneticilerdir. Araştırmanın örneklemi, İstanbul ve Ankara illerinde yaşayan ve farklı sektörlerde faaliyet gösteren, Z Kuşağı çalışanları yönetmiş veya halen yönetmekte olan30 yöneticidir. Katılımcılara mülakatın birinci bölümünde; yaş, cinsiyet, eğitim durumu, kıdem durumu, sektör ve departman bilgisinin yer aldığı demografik sorular yöneltilmiştir. İkinci bölümde ise, katılımcıların Z kuşağının liderlik stili beklentisine ilişkin algılarını ölçen 2’li likert (Katılıyorum / Katılmıyorum) olarak ölçeklendirilen ve 25 sorudan oluşan bir mülakat uygulanmış ve sonrasında 5 açık uçlu soru yöneltilmiştir. Mülakat için oluşturulan sorular literatürdeki liderlik özellikleri esas alınarak hazırlanmıştır.Bulgular:Yapılan nitel analizler sonucunda, katılımcıların Z kuşağının en çok dönüşümcü lider beklentisi içinde olduğu, otokratik lider beklentilerinin ise en düşük olduğu bulgularına ulaşılmıştır. Tartışma: Bu çalışmada elde edilenbulgulardan hareketle, motivasyon ve açık iletişim beklentisinde olan, kararlara katılım sağlamak isteyen Z kuşağı ile çalışan yöneticilere dönüşümcü lider özelliklerini benimsemeleri önerilmektedir.
Mesleki Yılgınlık Ölçeği (MEYÖ): Ölçek Geliştirme Çalışması (Professional Frustration Scale (PFC): Scale Development Study)
Authors: Tutar Hasan , Şahin Nevzat
Published: July 2023

Amaç–Yılgınlık, çalışanların işlerine karşı olumsuz olarak hissettikleri bir duygu olarak, tükenmişlik sendromunun başlangıç aşamasında ortaya çıkabilen bir duygu durumudur. Bu araştırmanın temel amacı çalışanların özellikle kariyer yaşamlarının ileri aşamasında ortaya çıkan mesleki yılgınlıklarının tespit edilmesinde kullanılabilecek “Mesleki Yılgınlık Ölçeği”nin geliştirilmesidir. Yöntem –Ölçeğin geliştirilmesi amacıyla veriler dört farklı araştırma grubundan toplanmıştır. Ölçek geliştirme sürecinde maddehavuzunun oluşturulması, pilot çalışma yapılarak maddelerin sadeleştirilmesi, test ve tekrar test analizi, keşfedici ve doğrulayıcı yapı analizi aşamalarından oluşan bir süreç izlenmiştir. Ölçeğin güvenilirlik analizi için Cronbach Alpha, rho_A ve bütünleşik güvenilirlik (CR) değerleri hesaplanmıştır. Ölçeğin geçerliği için yakınsak (uyum) ve ıraksak (ayrım) geçerlilik değerleri hesaplanmıştır. Ölçüt bağıntılı geçerlik analizi için işten ayrılma niyeti ölçeği kullanılarak yapısal eşitlik modeli (Smart PLS-SEM) oluşturulmuştur.Bulgular –Özel sektör çalışanlarından oluşan araştırma grubundan elde edilen verilerle ölçeğin üç boyutlu yapıda olduğu keşfedilmiştir. Madde doğrulama sürecinde ikinci araştırma grubundan elde edilen verilerle doğrulayıcı faktör analizi yapılmıştır. Ölçüt bağımlı geçerlik için ölçeğe ait boyutlar ve işten ayrılma niyeti değişkenleri kullanılarak araştırma modeli geliştirilmiştir. Mesleki yılgınlığın işten ayrılma niyetini yordadığı ve ölçüt bağımlı geçerliğin sağlandığı sonucuna ulaşılmıştır.Mesleki Yılgınlık Ölçeği; “İşe Karşı Soğuma (13 madde)”, “İş-Özel Yaşam Uyumsuzluğu (5 madde)” ve “İşe Karşı Motivasyon Kaybı (4 madde)” olarak adlandırılmıştır. Tartışma–Analiz bulguları Mesleki Yılgınlık Ölçeğinin geçerli, güvenilir, kamu ve özel örgüt çalışanları olmak üzere tüm çalışanların mesleki yılgınlık algılarını ölçmeye yarayan işlevsel bir ölçek olduğu ileri sürülebilir.
Recuperação de voçorocas e de áreas degradadas, no Brasil e no mundo - estudo de caso da voçoroca do Sacavém - São Luís – MA
Authors: Guerra Antonio José Teixeira , Bezerra José Fernando Rodrigues , Jorge Maria do Carmo Oliveira
Published: July 2023

Esse artigo aborda erosão por voçoroca, ao redor do mundo, chamando atenção das diversas formas de como recuperá-las. Em todas elas, técnicas de bioengenharia são apresentadas, assim como o sucesso e o baixo custo, quando aplicados. Além disso, esse artigo, destaca a necessidade de compreender como esse processo erosivo evolui nas encostas, as principais causas da formação das voçorocas e, consequentemente, o que fazer para mitigar esse processo geomorfológico. Finalmente, um exemplo de sucesso é apresentado, para São Luís, onde o monitoramento, usando técnicas tradicionais, e a recuperação da voçoroca, usando telas de buriti, que é uma palmeira local, provou que é possível, usando o conhecimento local, junto com o conhecimento acadêmico, recuperar uma voçoroca.
A Cross Sectional Study of Blood Culture, C Reactive Protein, Complete Blood Count in Neonatal Sepsis, in Tertiary Care Hospital, Salem
Authors: Kavitha G. , Theeba V. M. , Sengodan Rajesh
Published: July 2023

Background: Neonatal sepsis is defined as a clinical syndrome of bacteremia with systemic signs and symptoms of infection in the first 28 days of life. Neonatal sepsis is classified as early onset sepsis (EOS) within 72hours of birth and late onset sepsis (LOS) after 72 hours of birth. Neonatal sepsis is one of the major causes of mortality in neonates and it is responsible for 30 – 50 % of total neonatal death each year in developing countries. The emergence of antibiotic resistance to commonly used antibiotics lead to difficulty in the treatment of neonatal sepsis. Early diagnosis and treatment will lead to decrease in morbidity and mortality due to neonatal sepsis. Aim and objective:1.To estimate the prevalence of early and late onset neonatal sepsis in NICU 2.To study the bacteriological profile and its antibiotic susceptibility pattern of pathogens causing neonatal sepsis 3.To analyse correlation between CBC and CRP values along with blood culture among NICU patients Results: Most common organisms isolated in our institution by our study from total isolate of 120 are Klebsiella pneumonia were 40(33.30%), Coagulase negative Staphylococcus spp were 17(14%). CRP is elevated in 40% of patients at the admission and 80 % after 72 hours of admission. Most of the patient have total leukocyte count more than 11000 – 72 (48%).67(44.6%) patient have more than 9000 of absolute neutrophil count in per mm3, which indicates bacterial infection. Antibiotic susceptibility pattern of Gram negative organism isolated in neonatal sepsis isolates show sensitivity in the order of 75 (83 %) Imipenem,72 (79.50%) Piperacillin- tazobactum, 71(78.30%) to Cefaperazone sulbactam, 68 (74.6%) to Gentamicin,, 67(73.40%) to Amikacin,9(60%) to Doxycycline, 52(59%) to Ciprofloxacin, 36(38.5%) to Ceftazidime, 29(37.3%) to Cotrimoxazole, 32 (36.10%) to Cefotaxime, 30(33.70%) Amoxyclav Conclusion: Neonatal sepsis is a major cause of death in developing countries which is largely preventable with rationale antimicrobial therapy. The most common pathogen associated with neonatal sepsis vary with time of infection and geographical location. Therefore, continuous monitoring of bacteriological profile in NICU and its antibiotic susceptibility pattern is needed. Early detection of the resistance pattern and strict follow up of antibiotic stewardship program and adherence to hospital antibiotic policy would reduce the emerging multidrug resistance, neonatal mortality and morbidity.