bluuebunny/crossref_metadata_2025_split huggingface dataset:
Stiefel–Whitney classes of representations of SL(2, 𝑞)
Authors: Malik Neha , Spallone Steven 
Published: February 2023

Abstract
We describe the Stiefel–Whitney classes (SWCs) of orthogonal representations 𝜋 of the finite special linear groups

G
=

SL
⁡

(
2
,

F
q

)

G=\operatorname{SL}(2,\mathbb{F}_{q})

, in terms of character values of 𝜋.
From this calculation, we can answer interesting questions about SWCs of 𝜋.
For instance, we determine the subalgebra of

H
*

⁢

(
G
,

Z
/
2

⁢
Z

)

H^{*}(G,\mathbb{Z}/2\mathbb{Z})

generated by the SWCs of orthogonal 𝜋, and we also determine which 𝜋 have non-trivial mod 2 Euler class.
Can thyroid elastography with ultrasound be used to stage children with Hashimoto’s thyroiditis?
Authors: Koca Serkan Bilge , Seber Turgut 
Published: February 2023

Abstract

Objectives
We aimed to evaluate the stiffness of the thyroid parenchyma with Shear wave elastography (SWE) in children with Hashimoto’s thyroiditis (HT) and healthy controls.

Methods
A total of 130 children with HT and 46 healthy controls were included in this study. The clinical and laboratory characteristics of the groups, thyroiditis stages in thyroid ultrasonography, and SWE scores which was obtained as kilopascal (kPa), were analysed.

Results
We observed that SWE scores were significantly higher in children with HT compared to healthy controls, and SWE scores increased significantly in HT group, as the thyroiditis stage increased (p<0.001). Median, 1st (Q1) and 3rd (Q3) quartiles of SWE scores were as follows; healthy control: 7.4 kPa (6–10.6), stage 1 HT: 9.6 kPa (7.4–11.2), stage 2 HT: 15.2 kPa (10.8–19.9), stage 3 HT: 17.9 kPa (13.7–25.8), (p<0.001). Children with HT were divided into subgroups according to serum TSH and free T4 levels as euthyroid (103; 79.2% of children), euthyroid but subclinical TSH elevation (7; 5.4% of children), hypothyroidism (11; 8.5% of children) and hyperthyroidism (9; 6.9% of children). The SWE scores were significantly higher in children with hypothyroidism with HT compared to healthy controls 17.9 kPa (13.6–27.5) vs. 7.4 kPa (6–10.6), and in euthyroid children with HT compared to healthy controls 11.5 kPa (9.2–15.6) vs. 7.4 kPa (6–10.6), (p=0.006 and p<0.001, respectively).

Conclusions
The SWE scores increase as the thyroiditis stage increases in children with HT. There was no significant difference in SWE scores between stage 2 and stage 3 thyroiditis.
The raccoon dog Nyctereutes procyonoides in Italy: a review of confirmed occurrences
Authors: Pecorella Stefano , Viviano Andrea , Lapini Luca , Mori Emiliano 
Published: February 2023

Abstract
The raccoon dog Nyctereutes procyonoides is an Asian canid species which has been introduced to Europe for fur farming. Local escapes and the animal subsequent dispersal have triggered the establishment of self-sustaining populations, particularly in Eastern European countries, but with several populations in Southern Europe as well. Despite being listed amongst the alien species of European concern (EU Regulation 1143/2014), data on raccoon dog distribution in Southern Europe and in particular in Italy are still scanty. In this work, we reviewed all the available data of raccoon dog in Italy. Only five confirmed occurrences are available, suggesting that in this country the species may still be at the beginning of the establishment process.
The crystal structure of 1-(4-chlorophenyl)-3-cycloheptylurea, C14H19ClN2O
Authors: Tang Qianqian , Dai Hanqi , Zhou Guangfu , Wu Yuanjiang , Wang Wei , Zhao Yang 
Published: February 2023

Abstract
C14H19ClN2O, monoclinic, P21/c (no. 14), a = 12.8823(9) Å, b = 9.1617(6) Å, c = 11.7421(9) Å, β = 98.377(7)°, V = 1371.06(17) Å3, Z = 4, R

gt

(F) = 0.0678, wR

ref

(F2) = 0.1912, T = 293 K.
Physicochemical and microbiological characteristics of various stem bark extracts of Hopea beccariana Burck potential as natural preservatives of coconut sap
Authors: Raharjo Dwi , Zaman Muhammad Zukhrufuz , Praseptiangga Danar , Yunus Ahmad 
Published: February 2023

Abstract
The bark of Hopea beccariana Burck is used to prevent damage to coconut sap. The purpose of this study was to determine the physicochemical and microbiological characteristics of various extracts of the bark of H. beccariana Burck as potential natural preservatives for coconut sap. The bark was extracted by maceration method for 24 h assisted by stirring using ethanol, methanol, n-hexane, and water at 60°C as solvent. The type of solvent used for extraction had a significant effect on the yield, total phenolic, total flavonoid, antioxidant activity, toxicity, and diameter of the inhibition zone against Lactobacillus plantarum. The highest yield was found in methanol extract at 22.34%, the highest total phenolic content was found in ethanol extract of 53.39 mg gallic acid equivalent/g extract, and the highest total flavonoid content was found in the aqueous extract at 60°C of 106.70 mg QE/g extract; all extracts have an IC50 value of 80.28–91.80 ppm (very strong antioxidant) and ascorbic acid of 5.78 ppm. Methanol extract is classified as very toxic with an LC50 of 38.21 ppm. The dominant compounds produced by gas chromatography–mass spectrometer were hexanedioic acid, bis(2-ethylhexyl) ester; ethyl oleate; 9-octadecenoic acid (Z)-, ethyl ester; and hexadecanoic acid, ethyl ester. The diameter of the inhibition zone for Saccharomyces cerevisiae was 13.50–14.72 mm, L. plantarum was 10.31–17.72 mm, and Leuconostoc mesenteroides was 13.25–18.06 mm. All extracts had minimum inhibitory concentration values of 2.5 mg/mL and minimum bactericidal concentration values of 2.5 mg/mL for n-hexane extract and 60°C water, while ethanol and methanol extracts had MBC values >50 mg/mL.
Zwischen „Urkatastrophe“ und Neugründung: Der Verein für Socialpolitik 1919–1960
Authors: Hesse Jan-Otmar 
Published: February 2023

Zusammenfassung
Die Geschichte des Vereins für Socialpolitik war zwischen 1919 und 1960 von zahlreichen Krisen geprägt. Dazu zählten politische und akademische Krisen innerhalb des Vereins, aber auch die politische Radikalisierung, die 1936 zu seiner Auflösung führte. Jan-Otmar Hesse zeichnet in seinem Beitrag die Vereinsgeschichte nach und verbindet sie mit den wissenschaftlichen Paradigmenwechseln innerhalb der Wirtschaftswissenschaften zwischen Historischer Schule der Nationalökonomie und Keynesianismus. Darüber hinaus schildert er die Verdrängung jüdischer Wissenschaftler und Wissenschaftlerinnen sowie den Wiederaufbau der Wirtschaftswissenschaft und des Vereins nach dem Zweiten Weltkrieg.
Wiener integrals with respect to the generalized Hermite process (gHp). Applications: SDEs with gHp noise
Authors: Lechiheb Atef 
Published: February 2023

Abstract
In this paper, we introduce Wiener integrals with respect to the generalized Hermite process and we prove a non-central limit theorem in which this integral appears as limit. As an application, we investigate the corresponding stochastic
differential equations with the generalized Hermite process as a driving noise, we prove the existence and the uniqueness of the solution, and we give a generalization of the Hermite Ornstein–Uhlenbeck process and the Hermite-driving Vasicek process.
The truncated Euler–Maruyama method of one-dimensional stochastic differential equations involving the local time at point zero
Authors: Hiderah Kamal 
Published: February 2023

Abstract
Recently, Mao developed a new explicit method, called the truncated Euler–Maruyama method for nonlinear SDEs, and established the strong convergence
theory under the local Lipschitz condition plus the Khasminskii-type condition. The key aim of this paper is to establish the rate of strong convergence of the truncated Euler–Maruyama method for one-dimensional stochastic differential equations involving that the local time at point zero under the drift coefficient satisfies a one-sided Lipschitz condition and plus some additional conditions.
Calculation of specific surface area for tight rock characterization through high-pressure mercury intrusion
Authors: Kang Hao , Li Guanghui , Gao Jian 
Published: February 2023

Abstract
As one of the unconventional oil and gas resources, tight oil is of great development prospect all over the world. The characterization of tight reservoir has important guiding significance for overcoming the problems in exploration as well as improving the development effect. As one of the characteristics of reservoir cores, the specific surface area is very important for the characterization of tight reservoirs. In this study, based on mercury injection data of tight reservoir core from Changqing Oilfield, through the establishment of equal diameter pore model, the specific surface area of pores corresponding to different radii is calculated, respectively, and the overall specific surface area of the core is obtained. Through the comprehensive evaluation of the mercury injection data and the calculation results, it is found that the pores with the medium radius (0.009–0.178 μm) have the greatest contribution to the pore volume, followed by the pores with smaller radius (0.004–0.007 μm), and the pores with larger radius (0.268–53.835 μm) have the least contribution to the pore volume. However, the pores with smaller radius (0.004–0.089 μm) have the greatest contribution to the specific surface area, followed by the pore with larger radius (0.133–6.666 μm), and the specific surface area of individual pores in the middle range (8.917 μm) has the least contribution. Therefore, the adsorption loss of surfactant and so on must be considered in the process of tight oil development. In the development process, a series of main technologies such as fracturing, new water/gas injection, and horizontal well development should be explored. Through the overall design and scale implementation of reservoir scale, the investment cost of unit-producing reserves can be effectively reduced, and ultimately, the maximum benefit of tight oil development can be realized.
PENGENDALIAN VEKTOR NYAMUK DEMAM BERDARAH MELALUI REKAYASA GENETIKA SERTA PERSPEKTIF BIOETIKA
Authors: Suharyo Suharyo , Widjanarko Bagoes 
Published: February 2023

Kasus demam berdarah telah meningkat secara tajam di seluruh dunia, meningkat lebih dari 8 kali lipat selama dua dekade terakhir. Salah satu teknik dalam pengendalian nyamuk adalah dengan rekayasa atau modifikasi genetik nyamuk. Artikel ini hasil studi literatur yang terkait dengan perkembangan teknik rekayasa genetika, aplikasi modifikasi genetika pada nyamuk, serta diskusi dari aspek bioetikanya. Teknik rekayasa genetik yang telah berkembang, antara lain manipulasi gen, teknologi rekombinan DNA, kloning gen, dan modifikasi gen. sedangkan aplikasi rekayasa genetika pada nyamuk meliputi teknik pejantan mandul atau Teknik Serangga Mandul (TSM), intervensi nyamuk dengan gen dominan mematikan atau release of insects with dominant lethality (RIDL), serta intervensi gen penyandi (Gen Drives) guna mendapatkan nyamuk yang inkompeten dalam penularan agent penyakit demam berdarah. Secara laboratoris dan beberapa uji lapangan menunjukkan teknik tersebut dapat menurunkan populasi nyamuk Aedes aegypti. Namun permasalahan keberlanjutan dan biaya yang besar serta isu etik membayangi perkembangan teknik tersebut. Isu bioetik, etik kesehatan, dan lingkungan merupakan isu yang lekat dengan rekayasa genetik. Perubahan perilaku dan sifat nyamuk, serta dampak tak terduga pada masyarakat dan lingkungan yang mungkin ditimbulkan merupakan isu yang perlu mendapat perhatian dan penelitian lebih lanjut.
СТРАТЕГІЧНІ ПРИНЦИПИ ПОВОЄННОГО ВІДНОВЛЕННЯ УКРАЇНИ
Authors: КІСТЕРСЬКИЙ Леонід 
Published: February 2023

Визначено й проаналізовано основні стратегічні принципи повоєнної відбудови України: управління ресурсами відновлення, ціннісний підхід до процесів реформування і відновлення, освіта з наголосом на підготовці фахівців з високими етичними цінностями. Післявоєнне відновлення лише розпочинає тривалий рух України на шляху високотехнологічного розвитку.
Обґрунтовано необхідність створення конкретної, узгодженої з країнами-донорами програми відновлення, яка дозволить Україні не лише перебудуватися на європейських засадах, а й отримати членство в євроатлантичних структурах. Визначено контури такої програми і шляхи її реалізації. На нинішньому етапі потрібна нова архітектура міжнародного розвитку, якою може стати коаліція на основі взаємодії багатьох сторін, що паралельно з відновленням України стимулюватиме її інтеграцію до ЄС. Детально проаналізовано процес налагодження координації діяльності донорів з реципієнтом як один з найважливіших і найскладніших елементів реалізації «плану Маршалла» в повоєнній відбудові України.
Розглянуто основні варіанти координаційних можливостей і запропоновано конкретний варіант координаційного механізму для сучасної України. Для подолання наявної системної кризи доцільно консолідовано використовувати тактичні й стратегічні реформаторські заходи. Невідкладними тактичними заходами є реформування системи управління і боротьба з корупцією, а стратегічними – відновлення верховенства права і етичних норм у економіці, тобто християнських цінностей. Обґрунтовано, що сьогодні людський капітал відіграє дедалі важливішу роль у глобальному середовищі, а освіта і наука стали ключовими елементами у визначенні якісних аспектів робочої сили. Показано, що успіхи «плану Маршалла» і реконструкції Південної Кореї на основі розвитку високих технологій завдячують не лише високоякісній структурі управління проектами, а й вихованню і залученню талановитих людей для їх реалізації.
Admission and Care Practices in United States Well Newborn Nurseries
Authors: Joshi Neha S. , Flaherman Valerie J. , Halpern-Felsher Bonnie , Chung Esther K. , Congdon Jayme L. , Lee Henry C. 
Published: February 2023

OBJECTIVES
Late preterm and term infants comprise 97.3% of annual births in the United States. Admission criteria and the availability of medical interventions in well newborn nurseries are key determinants of these infants remaining within a mother–infant dyad or requiring a NICU admission and resultant separation of the dyad. The objective of this study was to identify national patterns for well newborn nursery care practices.

METHODS
We surveyed a physician representative from each nursery in the Better Outcomes through Research for Newborns Network. We described the admission criteria and clinical management of common newborn morbidities and analyzed associations with nursery demographics.

RESULTS
Of 96 eligible nursery representatives, 69 (72%) completed surveys. Among respondents, 59 (86%) used a minimal birth weight criterion for admission to their well newborn nursery. The most commonly used criteria were 2000 g (n = 29, 49%) and 1800 g (n = 19, 32%), with a range between 1750 and 2500 g. All nurseries used a minimal gestational age criterion for admission; the most commonly used criterion was 35 weeks (n = 55, 80%). Eleven percent of sites required transfer to the NICU for phototherapy. Common interventions in the mother’s room included dextrose gel (n = 56, 81%), intravenous antibiotics (n = 35, 51%), opiates for neonatal abstinence syndrome (n = 15, 22%), and an incubator for thermoregulation (n = 14, 20%).

CONCLUSIONS
Wide variation in admission criteria and medical interventions exists in well newborn nurseries. Further studies may help identify evidence-based optimal admission criteria to maximize care within the mother–infant dyad.
Coimbra das Canções. Maldita e aporrinhada
Authors: Grizoste Weberson Fernandes 
Published: February 2023

Este ensaio analisa a vida de Gonçalves Dias durante o período em que esteve em Coimbra através de um viés literário extraído a partir de sua própria poesia e, majoritariamente, de sua epístola íntima, seguido da crítica biográfica. Apresentamos um ensaio biográfico demonstrando, especificamente, a forma como o poeta sentiu e viveu Coimbra. Declara ter sido triste a vida que teve nas margens do Mondego, mas mais triste, considerou que, seria viver e morrer sem um nome. A cidade alma-mater a quem chamou, numa correspondência ao melhor amigo, de maldita e aporrinhada pela poesia, venceu. Tão aporrinhada que nos deu a “Canção do Exílio” – uma das maiores expressões de nacionalidade do romantismo brasileiro.
Transfeminism and Political Forms of Life
Authors: Trevino-Tarango Martha Alicia 
Published: February 2023

It is sometimes argued that there are pre-political, ‘natural’ characteristics that have a significant role in rendering political subjects, for instance that women are the subjects of feminism. These same arguments criticise transfeminism as a usurper of feminist priorities because it changes focus to the rights of groups whose members are not exclusively women. This essay challenges such criticism. It begins by defining transfeminism as a form of activism and an epistemological tool, in order to cogently address some of the views that oppose it. I then propose a way out of the conflict by showing how we can make better sense of transfeminism aided by Wittgenstein’s concept of forms of life, since both views contend that there are biological and environmental features that constitute the uniqueness as well as the diversity of the given human form of life, without implying that said diversity leads to relativism. The paper concludes that transfeminism, when conceptualised correctly, can indeed work with other feminisms and political movements in order to counter institutionalised and market-driven gender politics that only simulate to address feminist concerns.

Key words: transfeminism, Wittgenstein, forms of life, Judith Butler, feminist subject
Un Flagelo sin Respuesta: Análisis Cienciométrico de la Producción Científica sobre Corrupción Estatal en Scopus (2016-2021) y su Perspectiva desde Colombia
Authors: Patacón Ruíz Ingri Paola , Corchuelo-Rodríguez Camilo Alejandro , Bayona Aristizábal Diana Maité 
Published: February 2023

De acuerdo con el Índice de Percepción de la Corrupción 2021, Colombia continúa estancado en el puesto 87 a nivel mundial con 39 puntos (de 100 posibles) en la lucha contra la corrupción en el sector público (Transparency International, 2022). No obstante ello, esta situación es un problema mundial que impacta los derechos fundamentales de la población a lo largo y ancho del planeta. En consecuencia, este artículo analiza el papel de las comunidades académicas del mundo y de manera particular de Colombia en la producción científica relacionadas con la corrupción, teniendo en cuenta las publicaciones registradas en la plataforma Scopus sobre dicho tópico (método bibliométrico).
Dentro de los resultados de la investigación y grosso modo, se identifica una baja producción colombiana en Scopus sobre el tema, la mayor tipología de publicación son artículos con 74,4%. En el análisis infométrico los términos (palabras claves) más usados por los autores a nivel mundial es corruption (542 coocurrencias) y en las publicaciones de nacionales la palabra Colombia (5 concurrencias). El análisis factorial de las publicaciones permitió identificar la relación hipertextual más fuerte entre corruption, europe, political economy, united states, political power, leadership, economy development.
En ese orden de ideas, el volumen de publicaciones de autores colombianos en Scopus sobre corrupción no es proporcional al sin número de fenómenos de corrupción que se presentan en el país, a las modalidades o formas en las que se lleva a cabo, a la existencia de procesos y/o condenas relacionadas de manera directa o indirecta con la malversación de los recursos públicos, y en general, a una realidad política, económica y social permeada por este flagelo.
La investigación científica con enfoque inter y transdisciplinar es una herramienta necesaria para conocer, cuestionar y buscar soluciones eficaces a las necesidades reales de los fenómenos sociales, económicos y políticos a nivel local, regional, nacional e internacional. En tratándose de la corrupción, las investigaciones basadas en metodologías cualitativas y cuantitativas y los resultados derivados de un abordaje científico basado en evidencias, constituyen un insumo trascendental para la creación de políticas públicas, programas estatales y mecanismos institucionales que contribuyan al tratamiento y lucha contra la corrupción de manera eficaz.
La ciudadanía en general y las organizaciones que alertan y denuncian constantemente la vulneración de derechos y garantías fundamentales por el mal uso de los dineros públicos de manera sistemática, demandan propuestas nacionales concretas, serias y eficaces para atender la corrupción desbordada que aqueja al país. Los investigadores científicos deben atender con rigurosidad a ese llamado.
The maternal and perinatal outcomes in heart disease in pregnancy in a tertiary care hospital
Authors: Konar Lisley , Patil Divya J. , Kumar Vasantha 
Published: February 2023

Background: The incidence of cardiac diseases in pregnancy ranges from 1 to 3%. Pregnancy in women with heart disease is associated with considerable mortality and morbidity. Thorough prenatal care and team approach involving obstetricians, cardiologists, anaesthesiologists and neonatologists can improve the maternal and fetal outcome in these women. Rheumatic heart disease is still the leading cause of maternal heart disease during pregnancy in developing countries.
Methods: Between February 2022 and August 2022, a retrospective research at the RL Jalappa Hospital in Kolar was carried out. Out of 764 deliveries made at the facility throughout the study period, 30 singleton pregnancies complicated with heart disease admitted department of obstetrics and gynaecology at different periods of gestation. The maternal and perinatal outcome was thus noted.
Results: Out of 764 deliveries, 30 women were found to have been complicated with heart disease. Overall incidence was 3.9%. Rheumatic heart disease was the most common heart disease seen among them. The most common congenital heart disease present was atrial septal defect (ASD). The most common cause for LSCS was fetal distress. 93.3% of the babies delivered were shifted to NICU, with the most common cause being, preterm and low birth weight. No maternal mortality seen, though 1 neonatal mortality present due to extreme low birth weight.
Conclusions: A multidisciplinary team approach including obstetrician, cardiologist, pediatrician and anesthesiologist is needed in the cases of pregnancy with heart disease to determine the mode of delivery, timing of delivery, change in anticoagulant drugs in pregnancy, type of anesthesia, care of neonate, and follow-up of mother for better maternal and fetal outcomes.
Sobre la infinitud de los primos extendidos de Germain: un nuevo enfoque
Authors: Miramontes de León Gerardo 
Published: February 2023

La conjetura sobre la infinitud de los primos de Germain, es decir, aquellos que “si p es primo, 2p + 1 también es primo“, se trata en este trabajo siguiendo un enfoque novedoso. Primero se observa que hay un número infinito de números p que no son primos de Germain. Por lo tanto, si la cantidad de primos de Germain es infinita, no hay una biyección con todos los números primos.
Sin embargo, en este trabajo se muestra que haciendo una extensión a la definición de Germain, si se obtiene esa biyección. Para lograrlo, se extiende la definición de ”2p + 1” a “kp + (k - 1), con k ≥ 2”, los cuales serán definidos como primos extendidos de Germain. Eso nos permite plantear, entre otras, la conjetura de que existe un número infinito de primos extendidos de Germain y su biyección al conjunto infinito de los números primos. La última conjetura plantea que, en la forma kp + (k - 1), ningún primo p queda fuera de la categoría de ser primo de Germain.