bluuebunny/crossref_metadata_2025 huggingface dataset:
ВПЛИВ ФАСЦІОЛЬОЗНОЇ ІНВАЗІЇ НА ВІДТВОРЮВАЛЬНУ ФУНКЦІЮ ТА СТАН ІМУННОЇ СИСТЕМИ КОРІВ ПРИ РІЗНІЙ ІНТЕНСИВНОСТІ ІНВАЗІЇ
Authors: Гудь А. , Довгій Ю.
Published: May 2024

З-поміж значного переліку захворювань паразитарної етіології, що завдають істотних економічно-господарських збитків в усьому світі, а також стримують розвиток тваринницької галузі, у великої рогатої худоби фасціольозна інвазія посідає чи не найперше місце. Відомо, що збудниками хвороби є трематоди двох видів Fasciola hepatica і Fasciola gigantica, що паразитують у жовчних протоках та печінці тварин. Відомо, що збудники чинять виражену патогенну дію на організм тварин, як у личинковій стадії, так і в імагінальній. Хвороба проявляється змінами, які відбуваються практично в усіх органах і тканинах організму хворої тварини. Тому, метою дослідження, було встановлення впливу фасціольозної інвазії на гематологічні й біохімічні показники крові та відтворювальну функцію великої рогатої худоби за різної інтенсивності інвазії. Роботу виконували впродовж 2020‒2022 рр. на базі П(ПО)СП «Світоч», с. Груд, Новоград – Волинського району, Житомирської області. Дослідження проводились у лабораторії кафедри паразитології, ветеринарно-санітарної експертизи та зоогігієни, Поліського національного університету та сертифікованої Житомирської регіональної державної лабораторії державної служби України з питань безпечності харчових продуктів та захисту споживачів. Дослідженнями було встановлено, що у тварини, котрі були хворі на фасціольозну інвазію морфологічні та біохімічні показники крові суттєво різнилися між собою. Зниження кількості лейкоцитів та лімфоцитів пов’язане з імуносупресивною дією продуктів життєдіяльності фасціол на організм тварин. У корів котрі були піддані дегельмінтизації, при 100% ефективності заданих препаратів, строки осіменіння в порівнянні з фізіологічними показниками різнилися на 3-7 діб. Виходячи з результатів досліджень, можна стверджувати, що різна інтенсивність фасціольозної інвазії впливає на відтворювальну функцію корів і строки осіменіння.
КЛІНІКО-МОРФОЛОГІЧНІ ЗМІНИ ЗА ПАНКРЕАТИТУ КОТА ДОМАШНЬОГО
Authors: Скрипка М. , Дмитренко Н. , Колич Н. , Кузь О.
Published: May 2024

У даній статті наведено результати ретроспективного дослідження гострого панкреатиту у кота на основі с півставлення клінічних, клініко-біохімічних та гістопатологічних даних. Для порівняння симптомів і клінічного перебігу гострого панкреатиту використовували дані історії хвороби кота із клінічно підтвердженим діагнозом. Морфологічний та біохімічний аналіз показників крові хворих на панкреатит котів виявляє лейкоцитоз, нейтрофілію зі зрушенням вліво та помірний моноцитоз, підвищення концентрації загального білку, фосфору, сечовини, креатиніну, глюкози, холестерину, зростання активності ферментів, а також зниження вмісту гемоглобіну. Цінним в діагностичному відношенні виявилось зростання активності лужної фосфатази (до 112,8 Од/л), амілази (до 5680 Од/л) та зростання концентрації ліпази (до 11,4 нг/мл). Результати ультразвукового дослідження черевної порожнини показали збільшення розмірів підшлункової залози, дрібні гіперехогенні включення, набряк. На макроскопічному рівні виявляли поодинокі вогнищеві крововиливи в екзокринну частину підшлункової залози. Судини були розширені, переповнені кров’ю. Просвіти вивідних проток розширені, їх стінки набряклі. Сама залоза була рожево-сірого кольору, більш щільної консистенції. Причина смерті кота домашнього – серцева недостатість внаслідок гіпертрофії міокарда лівого шлуночка серця. Конкуруючим захворюванням, що могло призвести до загибелі тварини є гострий панкреатит.
БЕЗПЕЧНІСТЬ, ЯКІСТЬ ТА БІОХІМІЧНИЙ СКЛАД ПРОПОЛІСУ ЗАЛЕЖНО ВІД ТЕХНОЛОГІЇ ОДЕРЖАННЯ
Authors: Фурман С. , Лісогурська Д. , Лісогурська О. , Лігоміна І. , Войналович М.
Published: May 2024

Збереження бджіл стає важливою задачею для підтримання екосистемної рівноваги та забезпечення населення цінними продуктами, які мають дієтичні та лікувальні властивості.Прополіс – природний продукт, який містить ряд активних складників, таких як флавоноїди, фенольні кислоти та ефірні масла, що надають йому унікальних властивостей. Він здавна використовується людством завдяки своїм антимікробним та антиоксидантним властивостям.Результати досліджень розкривають важливі аспекти безпечності та якості прополісу залежно від способу його одержання. Для одержання прополісу була використані стамеска та сітка StanzPress, що розміщується зверху на вуличних рамках, під дахом. Досліджено, що використання сіток забезпечує підвищення валового збору прополісу, зменшення вмісту механічних домішок та воску і збільшення флавоноїдних сполук та йодного числа. Тому доцільно на пасіці для виробництва прополісу використовувати сітки, що забезпечить високу прополісозбиральну активність бджолиних сімей та якість прополісу. Застосування сітки під час виробництва сприяє покращенню характеристик якості прополісу і тим самим збільшує ефективність виробництва.Результати досліджень можуть бути використані при виробництві та використанні прополісу, підкреслюючи важливість якісного контролю цього цінного продукту бджільництва.
EVALUATION OF GRAIN SHELLING EFFICIENCY BY ROTOR-TYPE MACHINES
Authors: Dudarev I. , Uminsky S. , Moskalyuk I. , Maslych N.
Published: May 2024

Grain processing for the purpose of manufacturing products and compound feed is one of the main directions of the country's economic development. The grain prepared for the production of products and compound feed must meet the requirements that make it necessary to obtain quality compound feed, groats, flour and other products. Grain processing is the most important component of the country's agricultural sector, as it provides the consumer market with the necessary raw material.The grain processing industry in the country reaches a significant volume and has prospects for development and increased productivity. The processing of wheat, which contains about 80% of endosperm, appears to be the most important and significant. The efficiency of technological processes of grain preparation in the production of compound feed, groats, flour and other products depends on energy consumption. One of the most important operations of grain preparation for processing is the process of its dehusking. The choice of a rational method for the most effective dehusking process, i.e. the separation of the grain sheaths from the core can be carried out based on taking into account the mechanical properties of the grain and the features of the adopted technological operations. Taking into account the characteristics of the destruction of strength, stresses and friction and properties of viscosity, microhardness and stress relaxation of anisotropic structural grain systems during the organization of the process with the establishment of minimum energy consumption for the implementation of the peeling process is of great practical importance. The optimal mode of control of the peeling process is connected with the choice of kinematics and dynamics of the working body of the machine.
РОЗВИТОК НОВОНАРОДЖЕНИХ ЯГНЯТ РІЗНОГО ПОКОЛІННЯ, ОДЕРЖАНИХ ВІД ВІВЦЕМАТОК ЦИГАЙСЬКОЇ І БАРАНІВ ГІСАРСЬКОЇ ПОРІД
Authors: Китаєва А. , Слюсаренко І.
Published: May 2024

Промислове схрещування використовується у товарних стадах з метою збільшення виробництва м’яса вже у помісей першого покоління. Ефективність простого промислового схрещування вівцематок Цигайської і баранів-плідників Гісарської порід та розвиток ягнят першого і другого покоління у внутрішньоутробний період онтогенезу вивчені недостатньо. У статті наведено дані щодо живої маси та екстер’єру новонароджених ягнят різних поколінь, одержаних від простого промислового схрещування вівцематок Цигайської та баранів- плідників Гісарської порід. Показники екстер’єру та живої маси вивчали за загально прийнятими методиками. Встановлено, що ягнята народжувалися життєздатними з добре розвиненим вовновим покривом. Помісні баранці і ярки першого і другого поколінь мали високу живу масу та добре виражені статі тіла. Баранці другого покоління мали дещо кращі показники живої маси та екстер’єру порівняно з ровесниками першого покоління. Так, баранці і ярки другого покоління переважали ровесників першого покоління за живою масою при народженні: баранці-одинаки –на 1,58 кг або на 35,6%, баранці-двійні – на 1,72 кг або цього потрібні високопродуктивні тварини, які б мали міцне здоров’я й високу відтворну здатність. Для підвищення продуктивних якостей овець застосовують різні технології на 43,22% і відповідно ярки-одиначки – на 0,8 кг або на 19,37%, ярки-двійні – на15,14%. Перевага помісних ягнят другого покоління була високо вірогідною (Р>0,999). У помісних ягнят чітко простежувався статевий диморфізм, який у помісних тварин другого покоління мав більш виражену спрямованість. Баранці--двійні другого покоління переважали ярок-двійнів на 0,99 кг або на 21,02%, а у баранців-одинаків перевага над ярками-одиначками становила 0,86 кг або 17,44% (Р>0,999). . Ярки першого і другого покоління мали майже однакові проміри статей тіла, за винятком таких промірів як: висота в холці та обхват грудей за лопатками, які у ярок другого покоління були більші, ніж у ровесниць першого покоління відповідно на 2,35 см або 7,75% і 1,81 см або 5,68% (Р>0,95).
Edukasi Kesehatan Dan Pelatihan Perineal Massage Pada Ibu Bersalin Dan Tenaga Kesehatan Di Uptd Puskesmas Sukawati I Gianyar
Authors: Darmayanti Putu Ayu Ratna , Ariani Ni Komang Sri , Darmawati I Dewa Ayu Agra , Wiarsini Ketut Ayu , Nugraha Iwan Saka
Published: May 2024

Robekan jalan lahir dapat terjadi pada semua persalinan, pada dasarnya tidak berbahaya jika mendapat penanganan yang baik. Salah satu cara untuk mencegah terjadinya robekan jalan lahir yaitu dengan melakukan perineal massage untuk meningkatkan elastitisitas perineum. Tujuan kegiatan ini adalah untuk membantu ibu bersalin dan tenaga kesehatan dalam meningkatkan pengetahuan dan keterampilan melakukan perineal massage. Kegiatan ini dilakukan dalam 2 tahap selama 2 hari pada Oktober-November 2022. Tahap awal kegiatan ini dilakukan dengan memberikan edukasi kesehatan tentang perineal massage pada ibu bersalin dan tenaga kesehatan serta menyebarkan kusioner pretest dan posttest tentang perineal massage. Kemudian, dilanjutkan dengan kegiatan pelatihan perinal massage selama 45 menit. Kegiatan ini dilakukan pada 68 orang ibu bersalin dan tenaga kesehatan yang ada di UPTD Puskesmas Sukawati I Gianyar. Hasil didapatkan yaitu ada perbedaan tingkat pengetahuan ibu bersalin dan tenaga kesehatan sebelum dan sesudah diberikan edukasi kesehatan. Semua ibu bersalin dan tenaga kesehatan di Puskesmas Sukawati I Gianyar telah mampu melakukan perineal massage. Diharapkan tenaga kesehatan di UPTD Puskesmas Sukawati I Gianyar dapat mengimplementasikan perineal massage dalam pelayanan kebidanan khususnya selama memberikan asuhan kebidanan pada ibu bersalin sehingga mutu dan kualitas layanan kebidanan semakin baik dan minim trauma.
 
Kata kunci : Perineal Massage, Ibu Bersalin, Edukasi Kesehatan, Pelatihan
Grid Synchronization in a 3-Phase Inverter using Double Integration Method
Authors: Farooq Faheem , Hafeez Kamran , Sabbar Bayan Mahdi , Mnati Mohannad Jabbar
Published: May 2024

Distributed renewable energy sources (DRESs) have additional benefits compared with conventional fossil fuel-based energy sources. These sources are connected to the utility grid using a suitable synchronization method. It requires accurate information on grid voltage magnitude and phase angle. But the presence of harmonics, DC Offset, and voltage unbalances makes the synchronization process more challenging. Conventionally synchronous reference frame (SRF)- PLL is implemented for this purpose, however, it has a problem with 100Hz ripple during distorted grid conditions. A double integration method (DIM) is administered for the synchronization of a 3-phase inverter under non-ideal grid conditions. It is important for DIM implementation to remove the DC offset or integrating constants of pure integrators without involving any phase shift. This method is also compared with conventional SRF-PLL based on mathematical modelling and simulations using a MATLAB/Simulink toolbox. The results are verified based on ideal and non–ideal grid conditions and also tested on grid-connected 3-phase Inverter.
Utilizing Logistic Regression for Analyzing Customer Behavior in an E-Retail Company
Authors: Alparslan Hakan , Turgay Safiye , Yilmaz Recep
Published: May 2024

The e-retail sector is growing day by day and the competitive environment is getting harder. Businesses have to compete with their competitors in order to survive. In parallel with the increasing internet penetration, the trade volume in E-Retail sites is also increasing therefore the data generated on these sites is enormous. Understanding these data with traditional analysis methods is difficult due to the size problem mentioned. Difficult to understand data causes loss of time, money and customers. In recent years, machine-learning algorithms have been frequently used to analyse these large-sized data and to use them in decision-making. This study aimed to perform predictive analysis for the product recommendation system established by using logistic regression, which is a supervised machine-learning algorithm. In addition, the binary classification algorithm preferred to predict whether customers make a purchase or not. As a result, the accuracy degree of the model was 79.73%. This study has the potential to affect the understanding of customers, ensuring customer satisfaction, increasing profit and market share, and contributes to a sustainable business purpose.
2019-2023 Yılları Arasında Türk Televizyon Kanallarında Yayınlanan Dizi Türleri Üzerine Bir İnceleme
Authors: Dursun Zehra
Published: May 2024

Geniş kitlelere hitap eden televizyon dizileri, Türk televizyon yayıncılık tarihinde önemli bir rol oynamaktadır. Her dönem farklı türler olarak yayınlanan dizi projeleri, televizyon dünyasının çeşitliliğini izleyiciye yansıtmaktadır. Bu çalışmada 2019-2023 yılları arasında en çok izlenilen kanallar olan ATV, TRT, STAR TV, KANAL D, SHOW TV, FOX TV, Kanal 7 ve TV8’de yayınlan dizi türleri incelenmiştir. Çalışma, yapıldığı döneme ışık tutması amacı ile son beş yıl tercih edilmiştir. Çalışmada, doküman analizi yöntemi ile 2019-2023 yılları arasında televizyon kanallarında yer alan dizi türleri araştırılmıştır. Bu yöntem, televizyon kanallarının hangi dizi türü projelere yer verdiğini belirlemek ve izlenme oranları için kullanılmıştır. Ayrıca içerik analiz yöntemi ile bu türlerin yıllara göre dağılımı ve izlenme oranları ortaya konulmuştur. Bu yöntem ise hangi dizi türlerinin izleyiciler tarafından tercih edildiği ve hangi türlerin yıllara göre popüler olduğunu belirlemek için kullanılmıştır. Bu iki yöntem kullanılarak farklı türden televizyon dizilerinin farklı dönemlerde popüler olduğu ve izleyici taleplerine göre benzer yapımların üretildiği sonucuna ulaşılmıştır.
Asociación del Índice lactato-albumina y mortalidad en adultos mayores con sepsis y choque séptico en un servicio de emergencia del Hospital Carlos Andrade Marin Quito-Ecuador
Authors: Chuchuca Carrión Geovanny Luis , Peñaloza Piña Bertha Mercedes , Guevara Hernandez Mishell Selene , Portilla De Jesús Paola Beatriz , Zavala Briones Madeline Michelle , Buri Guachisaca Maribel Alexandra , Silva Pancho Luis Eduardo , Carrión Ochoa Daniela Stefany , Sornoza Bravo José Alberto , Unapucha Guanopatin María Luisa , Changoluisa Yunda Sylvia Belén
Published: May 2024

La sepsis es un proceso inflamatorio sistémico relacionado a una disfunción orgánica (1). Mundialmente representa una de las principales causas de mortalidad y en países en vías de desarrollo o grupos vulnerables como adultos mayores esta debería ser mayor (2). El manejo temprano de esta patología es fundamental para mejorar estratificar con mayor riesgo de mortalidad y estimar el pronóstico de estos pacientes, de allí la necesidad de una herramienta (1–3). Por esta razón se hacen esfuerzos por estudiar marcadores serológicos costo-efectivos como el índice lactato-albúmina (4). Objetivo: Determinar la asociación del índice lactato-albúmina y la mortalidad de pacientes adultos mayores con sepsis y shock séptico. Métodos: Estudio observacional retrospectivo. Resultados: La mortalidad de los participantes con índice lactato/albumina mayor a 1.7 es de 68.7% y los pacientes con índice lactato albumina inferiores a 1.7 la mortalidad fue de 3.9 %. Conclusiones: El índice de lactato albumina con valores superior 1.7 se muestra como un buen indicador pronóstico de mortalidad en pacientes adultos mayores con sepsis y shock séptico
“Speak Up Please!” Teachers’ Strategies in Teaching Speaking Skills at Vocational High School in Sidoarjo
Authors: Fatahillah Muhammad Erwin , Agustina Sheila
Published: May 2024

Teaching speaking skills is an important part of foreign language learning. This study aims to find out the student difficulties that teachers find when teaching speaking and to find what strategies teachers use in teaching speaking at a vocational high school in Sidoarjo. This research uses a qualitative method with a case study approach. The subjects of this research were two English teachers at the vocational high school. Data were collected by conducting observations, interviews, and learning documentation during and after class. The results showed that teacher 1 found difficulties due to lack of motivation, lack of practice, lack of vocabulary, nervousness, low grammar mastery, and pronunciation challenges. To overcome these difficulties, teacher 1 used 9 strategies including role-playing, presentations, describing pictures, telling pictures, discussions, word walls, brainstorming, interviews, and storytelling. Similarly, teacher 2 found lack of motivation, lack of practice, lack of vocabulary, nervousness, low grammar mastery, and pronunciation difficulties to be the causes of difficulties. Teacher 2 also used 9 strategies, with some strategies different from teacher 1. They are role-playing, discussion, storytelling, interview, reporting, playing cards, describing pictures, telling pictures, and brainstorming. Thus, teachers can overcome students' difficulties in speaking by using the strategies used.
Depression Conditions of the Elderly Living in Nursing Homes and the Factors Affecting Them
Authors: Özdemir Sedat , Elkoca Ayse , Ayar Duygu , Türkbeyler İbrahim Halil
Published: May 2024

Aim: The aim of our article is to determine the depression status of elderly people living in nursing homes and the affecting factors.
Material and Method: The study included 75 elderly individuals who lived in assisted living facilities. Data was collected through a Personal Information Form, the Geriatric Depression Scale, the Mini Mental Assessment Test, and retrospective blood results. The data were analyzed using SPSS 26.0 software and non-parametric tests were used due to the non-normal distribution of the data. The Mann-Whitney U test and the Kruskal-Wallis test were used to compare independent variables. Additionally, multiple regression analysis was employed.
Results: The study found that 38.7% of elderly participants had abnormal mini-mental assessments, and 21.3% had significant depression. Statistical analysis revealed significant differences in the total mean scores of the Mini Mental State Test (MMST) based on gender (p=0.023), marital status (p=0.001), educational attainment (p=0.001), and level of schooling. Additionally, there was a statistically significant difference (p=0.002) between the Geriatric Depression Scale (GDS) total mean score and the presence of sleep issues. The total mean scores of MMST indicated a statistically significant difference between the status of urine incontinence (p=0.001) and exercise (p=0.006), as well as their combination.
Conclusion: Approximately one third of the participants were depressed and had poor cognitive status. Depression was associated with being female, low educational status and sleep problems, whereas mental status was associated with gender, marital status, and educational status. It is recommended to conduct longitudinal studies with larger samples in future studies.
Assessment of the usability of four molecular markers to ıdentify potato genotypes suitable for processing
Authors: Yavuz Caner , Demirel Ufuk , Caliskan Mehmet Emin
Published: May 2024

The development of processing potato cultivars through a conventional breeding program requires a detailed analysis of post-harvest traits, which is a process that demands high labor and is often time-consuming. Visual selection by breeders is biased and difficult in the field, particularly for quality traits, which shows the importance of marker-assisted selection over conventional techniques. In this study, four allele-specific markers, AGPsS-9a, Stp23-8b, StpL-3e, and Pain1-8c, developed from tuber quality-related genes, were used to screen a breeding population of the NOHU for processing traits to check the efficiency of these markers in processing trait selection. Marker association with tuber quality trait results showed that AGPsS-9a (0, absent) and StpL-3e (0) individually were associated with increased chips quality, yet their individual presence improved the reducing sugar content. Further, Pain1-8c presence was associated with high levels of reducing sugar accumulation and lower dry matter content, specific gravity, and starch content. The marker combination Stp23-8b (0) and StpL-3e (0) reached statistical significance (P≤0.05) for better chips quality in the NOHU population. However, the markers (individual and combination) showed poor selection efficiency as a diagnostic marker, possibly reasoning from the multigenic inheritance of tuber quality traits, population structure, and environment.
Strategies for Achieving SDGs on the Main Points of Poverty Eradication: A Case Study of ASEAN Member States
Authors: Qurrota A’yun Putri , Nurjanah Siti , Fatimah Zahra Siti
Published: May 2024

This research aims to support the main goal of SDG’s, it’s mean poverty eradication. The instruments used in this research to eradicate poverty are through increasing the value of the Corruption Perceptions Index, the Human Development Index, and the Giving Index. This research uses a quantitative panel data method with a Random Effect Model. The results show that the Corruption Perceptions Index, the Human Development Index, and the Giving Index have a significant negative effect on poverty both partially and simultaneously. The results of this study show that poverty alleviation requires contributions from all parties, namely the government, fellow citizens, and even the poor themselves. The government, as the holder of power, is able to make policies to eradicate poverty. These policies will succeed if there is no corruption. Excessively charitable individuals provide assistance to those in need, thus creating a more even distribution and welfare of the needy population. The poor themselves must also strive to improve their quality to escape poverty.
AN EFFICIENT SPECTRAL METHOD FOR NONLINEAR VOLTERRA INTEGRO-DIFFERENTIAL EQUATIONS WITH WEAKLY SINGULAR KERNELS
Authors: Liu ZhiPeng , Tao DongYa , Zhang Chao
Published: May 2024

For Volterra integro-differential equations (VIDEs) with weakly singular kernels, their solutions are singular at the initial time. This property brings a great challenge to traditional numerical methods. Here, we investigate the numerical approximation for the solution of the nonlinear model with weakly singular kernels. Due to its characteristic, we split the interval and focus on the first one to save operation. We employ the corresponding singular functions as basis functions in the first interval to simulate its singular behavior, and take the Legendre polynomials as basis functions in the other one. Then the corresponding hp-version spectral method is proposed, the existence and uniqueness of solution to the numerical scheme are proved, the hp-version optimal convergence is derived. Numerical experiments verify the effectiveness of the proposed method.
The Stellar Content of the Young Open Cluster Berkeley 50 (IC 1310)
Authors: Speckert Meghan , Massey Philip , Skiff Brian A.
Published: May 2024

We observed the Galactic open cluster Berkeley 50 in order to determine its stellar content, distance, and age. We obtained UBV photometry of 1145 stars in a 12.′3 × 12.′3 field, and used Gaia proper motions and parallaxes to identify 64 members, of which we obtained spectra of the 17 brightest members. The majority of the observed population we classified as B dwarfs, with the exception of a newly identified red supergiant star, which our spectroscopy shows has a B-type companion. Our study establishes the distance as 3.8 kpc, with an average color-excess E(B − V) = 0.9. Comparison of the physical properties of the cluster with the Geneva evolutionary tracks places the age of the cluster as 50–60 Myr, with its most massive members being ∼7M
⊙
The Evolution of Accreting Binaries: From Brown Dwarfs to Supermassive Black Holes
Authors: Dittmann Alexander J. , Ryan Geoffrey
Published: May 2024

Circumbinary accretion occurs throughout the universe, from the formation of stars and planets to the aftermath of major galactic mergers. We present an extensive investigation of circumbinary accretion disks, studying circular binaries with mass ratios (q ≡ M
2/M
1) from 0.01 to 1 and at each mass ratio probing the effects of disk thickness and viscosity. We study disks with aspect ratios H/r ∈ {0.1, 0.05, 0.03} and vary both the magnitude and spatial dependence of viscosity. Although thin accretion disks have previously been found to promote rapid inspirals of equal-mass binaries, we find that gravitational torques become weaker at lower mass ratios and most binaries with 0.01 ≤ q ≤ 0.04 outspiral, which may delay the coalescence of black hole binaries formed from minor mergers and cause high-mass exoplanets to migrate outward. However, in a number of cases, the disks accreting onto binaries with mass ratios ∼0.07 fail to develop eccentric modes, leading to extremely rapid inspirals. Variability in black hole accretion correlates with disk eccentricity, and we observe variability above the ∼10% level even for mass ratios of 0.01. We demonstrate that the spatial dependence of the viscosity (e.g., α vs. constant
ν) significantly affects the degree of preferential accretion onto the secondary, resolving discrepancies between previous studies. Colder circumbinary disks remain eccentric even at q ∼ 0.01 and sustain deep, asymmetric cavities.
Dissipative Dark Substructure: The Consequences of Atomic Dark Matter on Milky Way Analog Subhalos
Authors: Gemmell Caleb , Roy Sandip , Shen Xuejian , Curtin David , Lisanti Mariangela , Murray Norman , Hopkins Philip F.
Published: May 2024

Using cosmological hydrodynamical zoom-in simulations, we explore the properties of subhalos in Milky Way analogs that contain a subcomponent of atomic dark matter (ADM). ADM differs from cold dark matter (CDM) due to the presence of self-interactions that lead to energy dissipation, analogous to standard model baryons. This model can arise in dark sectors that are natural and theoretically motivated extensions to the standard model. The simulations used in this work were carried out using GIZMO and utilize the FIRE-2 galaxy formation physics in the standard model baryonic sector. For the parameter points we consider, the ADM gas cools efficiently, allowing it to collapse to the center of subhalos. This increases a subhalo’s central density and affects its orbit, with more subhalos surviving small pericentric passages. The subset of subhalos that host satellite galaxies have cuspier density profiles and smaller stellar half-mass radii relative to CDM. The entire population of dwarf galaxies produced in the ADM simulations is more compact than those seen in CDM simulations, unable to reproduce the entire diversity of observed dwarf galaxy structures. Additionally, we also identify a population of highly compact subhalos that consist nearly entirely of ADM and form in the central region of the host, where they can leave distinctive imprints in the baryonic disk. This work presents the first detailed exploration of subhalo properties in a strongly dissipative dark matter scenario, providing intuition for how other regions of ADM parameter space, as well as other dark sector models, would impact galactic-scale observables.
Evolutionary Origin of Ultralong-period Radio Transients
Authors: Fan Yun-Ning , Xu Kun , Chen Wen-Cong
Published: May 2024

Recently, two ultralong-period radio transients, GLEAM-X J162759.5-523504.3 (J1627) and GPM J1839-10 (J1839), were discovered with spin periods longer than 1000 s. The origin of these two ultralong-period radio transients is intriguing in understanding the spin evolution of neutron stars (NSs). In this work, we examine whether the interaction between strong magnetized NSs and fallback disks can spin NSs down to the observed ultralong period. Our simulations found that the magnetar + fallback disk model can account for the observed period, period derivative, and X-ray luminosity of J1627 in the quasi-spin-equilibrium stage. To evolve to the current state of J1627, the initial mass-accretion rate of the fallback disk and the magnetic field of the NS are in the range of (1.1–30) × 1024 g s−1 and (2–5) × 1014 G, respectively. In the active lifetime of the fallback disk, it is impossible for J1839 to achieve the observed upper limit of the period derivative. Therefore, we propose that J1839 may be in the second ejector phase after the fallback disk becomes inactive. Those NSs with a magnetic field of (2–6) × 1014 G and a fallback disk with an initial mass-accretion rate of ∼1024–1026 g s−1 are possible progenitors of J1839.
β Cephei Pulsators in Eclipsing Binaries Observed with TESS
Authors: Eze Christian I. , Handler Gerald
Published: May 2024

The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies between observations and models of stellar structure and the evolution of massive stars. This paper compiles a comprehensive list of massive pulsators in eclipsing binary systems observed with TESS. The TESS light curves and discrete Fourier transforms of a sample of 8055 stars of spectral type B0–B3 were examined for eclipses and stellar pulsations, and the ephemerides of the resulting subsample of massive pulsators in eclipsing binaries were computed. This subsample was also crossmatched with existing catalogs of massive pulsators. Until now, fewer than 30 β Cephei pulsators in eclipsing binaries have been reported in the literature. Here we announce a total of 78 pulsators of the β Cephei type in eclipsing binaries, 59 of which are new discoveries. Forty-three are recognized as definite, and 35 are candidate pulsators. Our sample of pulsating massive stars in eclipsing binaries allows for future asteroseismic modeling to better understand the internal mixing profile and to resolve the mass discrepancy in massive stars. We have already started follow-up work on some of the most interesting candidates.
Molecular systematics of the Dendrolagus goodfellowi species group (Marsupialia: Macropodidae)
Authors: Eldridge Mark D. B. , Potter Sally , Pratt Renae , Johnson Rebecca N. , Flannery Tim F. , Helgen Kristofer M.
Published: May 2024

Tree-kangaroos (genus Dendrolagus) are a morphologically distinctive genus of specialized, arboreal macropodids confined to the wet forests of New Guinea and northeast Australia. A distinct Goodfellow’s group, containing up to four species, has long been recognized. Resolving the relationships of taxa within the group has been hampered by limited samples of most taxa. Here we supplement published genetic data from high quality tissue samples with molecular data generated from museum specimens to improve taxon and geographic coverage. This includes specimens of the previously unsampled D. g. goodfellowi, the holotype and paratype of D. deltae, and additional specimens of D. matschiei, D. spadix and D. g. buergersi. DNA sequence data were generated from three mitochondrial loci. Phylogenetic analysis improved the resolution of relationships within the Goodfellow’s group, with the morphologically similar D. g. goodfellowi and D. g. buergersi being recovered as sister taxa, while D. pulcherrimus was the sister to the closely related, but morphologically and ecologically distinct, D. spadix and D. matschiei. Despite being sister to D. g. buergersi, D. g. goodfellowi was highly divergent. However, the two are morphologically very similar and we recommend retaining the taxonomic status quo (recognizing them as two subspecies of a single species) until improved sampling and a more thorough analysis is possible. The problematic D. deltae was confirmed as a junior synonym of D. matschiei.
Hemodynamic assessment in transcatheter fenestration closure in patients after Fontan operation
Authors: Levunlieva E. , Nenova-Karakasheva K. , Kaneva-Nencheva A.
Published: May 2024

The fenestration in Fontan operation consists in creation of a communication between venous circulation and the pulmonary venous atrium, allowing direct passage of blood from the venous to the systemic circulation (right-to-left shunt). There is no general agreement concerning the mean pulmonary artery pressure (mPAP) level above which fenestration is indicated. There are no strict guidelines for the indications for fenestration closure as well. Here we present our data about invasive hemodynamic assessment before and after temporary closure of the fenestration in patients after Fontan operation. Our recommendations regarding comprehensive evaluation of patients with fenestrations after Fontan surgery are also presented.
Pharmacoeconomic evaluation of optical coherence tomography for imaging in cardiac interventions
Authors: Velikov Т. , Dacheva А. , Slavchev G. , Seitaridou Y. , Mekov E. , Dzhambazov S. , Vasilev D.
Published: May 2024

Introduction: OCT is a noninvasive, contactless, optical method that uses infrared light to produce images of blood vessel anatomy, tissue microstructure, and stents during cardiac catheterization. Aim: This review aims to present a cost-effectiveness analysis and budget impact analysis of optical coherence tomography for imaging in patients undergoing cardiac catheterization and percutaneous coronary interventions. Methods: An incomplete economic analysis was chosen to evaluate the cost-effectiveness of OCT, in which only direct medical costs were assessed. The time horizon for estimating the costs and health beneﬁ ts of OCT was one year. In addition, a budget impact analysis was conducted. Results: As a result of the incomplete economic analysis of the costs of OCT-guided PCI, it could be seen that the total cost per patient amounted to BGN 4,954.89. These costs include the unit cost of the device (OCT catheters) – BGN 2,000.00 including VAT, and the weighted average cost of the OCT-guided PCI procedure – BGN 2,954.89. Conclusion: The OCT-guided PCI strategy is associated with higher procedural costs but with more favorable clinical beneﬁ ts, making it a cost-effective option for intravascular imaging in the long term.
Interventional electrophysiology in Bulgaria in 2023: data from the electronic registry BG-EPHY
Authors: Shalganov T. , Stoyanov M. , Dzhinsov K.
Published: May 2024

This study presents data from the national electronic registry BG-EPHY on electrophysiologic (EP) cardiac ablations in 2023. Material and methods. This is a retrospective study of a full one-year sample of the BG-EPHY registry. Sex and age distribution of the patients, number of ablations, use of electroanatomic mapping (EAM), irrigated and cryoablations, distribution of different types of arrhythmias, acute procedural success, and complications are presented. Results. In 2023 nine EP centers performed 2021 ablations in 1309 men (61.8%) and 807 women, incl. 20 ablations in pediatric patients (1%). EAM was used in 941 procedures (46.6%), irrigated-tip catheter – in 1121 (55.5%), cryocatheter – in 420 (20.8%), and intracardiac echocardiography – in 43 (2.1%). The most frequently performed ablation was pulmonary vein isolation (46.4%), followed by ablation for AV nodal reentrant tachycardia (16.3%) and typical atrial ﬂutter (15.2%). The acute success was over 98%, while intraprocedural complications were less than 2%. Conclusion. The national registry of electrophysiology collects systematically and continuously basic data on all ablations of cardiac arrhythmias performed in  the country. In 2023, after the end of the COVID-19 pandemic, the number of ablations increased compared to 2022, but at a slightly slower rate. Distribution of EP procedure types was similar to previous years. Acute success was very high, while intraprocedural complications were rare. 
Checklist of hosts, illustrated geographical range, and ecology of tick species from the genus Ixodes (Acari, Ixodidae) in Russia and other post-Soviet countries
Authors: Fedorov Denis , Hornok Sándor
Published: May 2024

Hard ticks (Acari: Ixodidae) are the economically and ecologically most important blood-sucking arthropod vectors that can transmit disease agents under temperate climate. In this group, the highest number of species (currently nearing 270) belongs to the genus Ixodes. For this review, more than 400 papers related to this genus in the context of Russia were checked for data on the host records, locations of collection, as well as ecology of assigned tick species. This monograph compensates for the lack of a similarly comprehensive English-language overview of Ixodes species in the region of Russia for nearly half century, and also makes a large set of data easily available for international readers, which is especially important if the original source is difficult to access from outside this country. In addition, the data from a significant number of papers on this topic available only in the Russian language are made accessible through this work.
Soft strong $ \theta $-continuity and soft almost strong $ \theta $-continuity
Authors: Abuzaid Dina , Al-Ghour Samer
Published: May 2024

We continued the study of "soft strong $ \theta $-continuity" and defined and investigated "soft almost strong $ \theta $-continuity" which is a generalization of soft strong $ \theta $-continuity. We gave characterizations and examined soft composition concerning these two concepts. Furthermore, we derived several soft mapping theorems. We provided several links between these two ideas and their related concepts through examples. Lastly, we looked at the symmetry between them and their topological counterparts.
Exploring variable-sensitive $ q $-difference equations for $ q $-SINE Euler polynomials and $ q $-COSINE-Euler polynomials
Authors: Kang Jung Yoog , Ryoo Cheon Seoung
Published: May 2024

In this study, we introduced several types of higher-order difference equations involving $ q $-SINE Euler (QSE) and $ q $-COSINE Euler (QCE) polynomials. Depending on the parameters selected, these higher-order difference equations exhibited properties of trigonometric functions or related Euler numbers. Approximate root construction focused on the QSE polynomial, which was the solution of the $ q $-difference equations obtained earlier. We also showed the structure of the approximate roots of higher-order polynomials among the QSE polynomials, understood them, and considered the associated conjectures.
Normalized multi-bump solutions of nonlinear Kirchhoff equations
Authors: Shu Zhidan , Zhang Jianjun
Published: May 2024

We are concerned with the existence and concentration of multi-bump solutions for the nonlinear Kirchhoff equation

   \begin{document}$ \begin{eqnarray*} -\left ( \varepsilon ^{2}a+\varepsilon b\displaystyle {\int}_{\mathbb{R}^{3} }\left | \nabla v \right | ^{2} \mathrm {d} x \right )\Delta v+\lambda v = K(x)\left | v \right |^{2\sigma }v,\,\,\,x\in\mathbb{R}^3 \end{eqnarray*} $\end{document}

with an $ L^{2} $-constraint in the $ L^{2} $-subcritical case $ \sigma\in\left(0, \, \frac{2}{3}\right) $ and the $ L^{2} $-supercritical case $ \sigma\in\left(\frac{2}{3}, \, 2 \right). $ Here $ \lambda \in \mathbb{R} $ appears as a Lagrange multiplier, $ \varepsilon $ is a small positive parameter and $ K > 0 $ possesses several local maximum points. By employing the variational gluing method and the penalization technique, we prove the existence of multi-bump solutions that are concentrated at local maximum points of $ K $ for the problem above.
Optimal control of pandemics via a sociodemographic model of non-pharmaceutical interventions
Authors: Weightman Ryan , Akinode Temitope , Piccoli Benedetto
Published: May 2024

The COVID-19 pandemic highlighted the need to quickly respond, via public policy, to the onset of an infectious disease breakout. Deciding the type and level of interventions a population must consider to mitigate risk and keep the disease under control could mean saving thousands of lives. Many models were quickly introduced highlighting lockdowns, testing, contact tracing, travel policies, later on vaccination, and other intervention strategies along with costs of implementation. Here, we provided a framework for capturing population heterogeneity whose consideration may be crucial when developing a mitigation strategy based on non-pharmaceutical interventions. Precisely, we used age-stratified data to segment our population into groups with unique interactions that policy can affect such as school children or the oldest of the population, and formulated a corresponding optimal control problem considering the economic cost of lockdowns and deaths. We applied our model and numerical methods to census data for the state of New Jersey and determined the most important factors contributing to the cost and the optimal strategies to contained the pandemic impact.
Problem-Based Learning and Knowledge of Digital Electronics among Engineering Students
Authors: Castro-Vargas Cristian , Cabana-Cáceres Maritza
Published: May 2024

This paper aims to explore the relationship between problem-based learning (PBL) and the digital electronics course for engineering students at a private university with a population of 97 students. The study utilized a deductive and correlational hypothetical method with a non-experimental and quantitative design. As a result, the statistically significant relationship between PBL and the digital electronics course is verified. A relationship coefficient equal to Rho = 0.780 and p < 0.01, confirms the proposed alternative hypothesis. This result provides a robust quantitative perspective on how the integration of PBL positively influences engineering students’ acquisition of digital electronics knowledge. The contribution lies in empirical support for the effectiveness of the PBL approach, providing educators and engineering professionals with a solid foundation for enhancing pedagogical strategies and fostering more effective and practical learning in the discipline.
Identité, dignité et féminité dans « Le Châle de Zeineb » de Leila Hamoutene
Authors: Raïssi Djerafi Loubna
Published: May 2024

« Le Châle de Zeineb », roman de l’auteure Leila Hamoutene, fait voyager le lecteur à travers les grands bouleversements que l’Algérie a connu lors de sa colonisation. Très sensible à l’évolution de sa société, l’auteure aborde plusieurs faits anthropologiques : la religion, les traditions, l’Identité, le patriotisme... Le récit surprend par sa nature profondément sociale à travers la fonction symbolique d’un châle, confié de mère en fille. Cet article est une réflexion sur la dimension heuristique à travers la restitution de situations sociales dans ce roman. Au gré de différents récits emboités, narrés exclusivement par des femmes de différentes générations, c’est le portrait de la femme algérienne qui se dessine.
Introduction to Data Analytics
Authors: Kumari Aparna , Golyan Alka , Shah Rushi , Raval Nikhil
Published: May 2024

In today's data-centric environment, data analytics has become increasingly crucial, offering insights from extensive data sources. This chapter presents an introductory overview of data analytics, emphasizing its significance, methods, and practical applications. It examines fundamental aspects like data collection, preprocessing, analysis, and interpretation, alongside the diverse array of tools and methodologies employed. Furthermore, it delves into the pivotal role of data analytics across decision-making processes, business intelligence endeavors, predictive modeling, and other pertinent fields. Data analytics examines raw data to understand what it tells us. It's like digging into information to find out what's important. Data analysis helps us understand things better, like how to make something work or do things more efficiently. By using these methods, we can make things run smoother and even save money. It's super important for any organisation because it helps them make smarter decisions and understand what customers like or don't like. This means they can make better products and services and market them more effectively. Data analytics is used in many different areas, and there are many tools to help with it. This chapter discusses all of this and cover how data analysis can help businesses in different ways, like figuring out customer trends, improving products, and making marketing strategies more effective.
Bio-Inspired Metaheuristic Algorithm for Network Intrusion Detection System of Architecture
Authors: Parvathala Balakesava Reddy , Manikandan A. , Vijayalakshmi P. , Muzammil Parvez M. , Harihara Gopalan S. , Ramalingam S.
Published: May 2024

By identifying different kinds of attacks and application misuse that firewalls normally aren't able to identify, network intrusion detection systems (IDS) are intended to keep computer networks safe. When creating a network intrusion detection system, feature selection techniques are crucial. Several bionic meta-heuristic algorithms are used to quickly categorize network traffic as problematic or normal, then decrease features to demonstrate higher accuracy. Thus, in order to detect frequent attacks, this research proposes a hybrid model of network intrusion detection system (IDS) based on an algorithm inspired by a hybrid bionic element. There are two goals for the suggested model. The first step is to minimize the number of features that are chosen in Network IDS. By combining biosensing metaheuristics with hybrid models, this objective is accomplished. The algorithms used in this chapter are particle swarm optimization (PSO), multiverse optimizer (MVO), grey wolf optimization (GWO), moth flame optimization (MFO), firefly algorithm (FFA), whale optimization algorithm (WOA), bat algorithm (BAT), genetic bee colony (GBC) algorithm, artificial bee colony algorithm (ABC), fish swarm algorithm (FSA), cat swarm optimization (CSO), artificial algae algorithm (AAA), elephant herd optimization (EHO), cuckoo search optimization algorithm (CSOA), lion optimization algorithm (LOA), and cuttlefish algorithm (CFA) algorithm. Using machine learning classifiers, the second objective is to identify frequent attacks. SVM (support vector machine), C4.5 (J48) decision trees, and RF (random forest) classifiers are used to accomplish this purpose. Thus, the goal of the suggested model is to pinpoint frequent attacks. The data indicates that J48 is the top classifier when it comes to model building time when compared to SVM and RF. The data indicates that when it came to feature reduction for classification, the MVO-BAT model decreased the features to 24, whereas the MFO-WOA and FFA-GWO models lowered the accuracy, sensitivity, and F-measure of all features to 15. The accuracy, sensitivity, and F-measure of each feature are the same for every classifier.