bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengembangan E-Modul Berbasis Hypercontent Pada Mata Pelajaran Bimbingan Ti&K Kelas IX Smp
Authors: Aisyah At Thahirah Widya , Syafril Syafril
Published: May 2023

The development of hypercontent-based e-modules was carried out as an effort to solve problems experienced by students where when students ask the teacher about material that is not understood, the teacher is less than optimal in providing answers for students, because many students ask. This research aims to produce e-module products in IT&K Guidance subjects in grade IX SMP and determine the validity and practicality of the e-module products developed so that they are valid and feasible to use. This type of research is development research known as Research and Development (R&D), using the 4D development model. The development procedure in this study consists of: (1) Define, (2) Design, (3) Develop, (4) Dessiminate. The validity test was carried out by 3 validators, namely 2 media expert validators and 1 material expert validator. The practicality test was carried out on 30 respondents of class IX students at SMP Negeri 4 Bukittinggi. Based on the results of the feasibility assessment from the media expert, it is categorized as "Very Valid" to be used with an average assessment of 4.64. The results of the assessment validation by material experts are also categorized as "Very Valid" to be used with an average assessment of 4.95. Furthermore, the trial results for the practicality of e-module products were in the "Very Practical" category of use with an overall average of 4.57. So based on the results of the validity and practicality tests, it can be concluded that the e-module product can be developed and practically used.
Penerapan Model Pembelajaran Kooperatif Tipe STAD Untuk Meningkatkan Hasil Belajar Prakarya dan Kewirausahaan (Rekayasa) Peserta Didik
Authors: Maisar Syarifah
Published: May 2023

Research objectives (1) To improve the learning outcomes of crafts and entrepreneurship (Engineering) students of class XI IPS 1 MAN Nagan Raya through a STAD type cooperative learning model (2) To increase the activities of teachers and students of class XI IPS 1 MAN Nagan Raya in the teaching and learning process using the STAD type cooperative learning model. In this study, the subject of the study was all students of Class XI IPS 1 MAN Nagan Raya for the 2022/2023 academic year with a total of 29 students. The data collection method uses final tests, interview tests, observations, Learner responses and field notes. The data collected includes data on teacher activities, student activities, student learning outcomes and Student responses. The results showed (1) Student learning outcomes increased from the first cycle with an average score of 67.93% increased to 76.20% in the second cycle, (2) Teacher activity increased, the first cycle percentage value was 79.04% to 90.47% in the second cycle while student activity increased, the first cycle with a percentage value of 65.62% to 84.37% in the second cycle.
Analisis Faktor-Faktor Niat Beli Ulang dalam Pembelian Online
Authors: Fahmi Hikmat Ryan
Published: May 2023

Research on repurchase intentions needs to be re-done to get the latest conditions regarding market conditions for marketers and find out consumer developments in strengthening in-depth arguments for themselves until they finally make a decision to repurchase. This study adapts a theory of reasoned action as a basis for knowing consumer behavior. Behavior according to Theory of Reasoned Action (TRA) is influenced by intentions, and intentions are influenced by subjective attitudes and norms. This attitude is influenced by beliefs about the results of the actions that have been taken. Subjective norms are influenced by beliefs about the opinions of others and the motivation to follow those opinions. In conclusion, this theory explains that a person will take an action if he sees the action as positive and if he believes that other people want him to follow it. Until now, studies related to re-purchase intentions are still relevant to be examined, given the need for an appropriate model to explain how a perception of value and trust affects consumers' buying intentions. This research presents a model of relationship of perception of value and belief to re-purchase intention with risk variables as moderation variable. The target of respondents in this study are the students, because according to the researchers the perpetrators of online buying and selling activities are mostly students who have understood very well about the use of technology in online transactions.
The Role of Political Parties in Communication at the Central and Regional Levels
Authors: Syam Radian
Published: May 2023

Parties politics are one of the most important components of a country's political system. This article aims to generate the birth of political power through the political process in empowered institution state and through political communication from the middle to the grassroots. The research method used in this research is a descriptive qualitative method. The data types used in this research are qualitative data, which are divided into primary data and secondary data. Data sources obtained through library research techniques (library research) are related to resources available online and offline, such as: Scientific journals, books, and news from reliable sources. The findings of this study conclude that the role of political forces in the political system is crucial in the process of legislation and communication through which the party's vision and mission are realized. Political institutions that formally have legislative power are staffed by those empowered to do so, or are reflected in the power structure of state institutions through formal political power, such as the President, the Council of People's Representatives, and other state institutions and political infrastructure. Political power, such as political parties, community leaders, community organizations, NGOs, professional associations, etc.
Proposed Marketing Strategy For PT. Harmony Land Group in Facing off Uncertainty Period
Authors: Muhammad Fithor
Published: May 2023

PT Harmony Land Group is property developer company for landed houses residential that founded by Fithor Muhammad and Ramadani in 2016. As a company that builds from the scratch, Harmony Land grew so fast, only 5 years, in 2021 Harmony Land already has 25 residential projects with 1004 units in five cities, Depok, Jakarta, Bogor, Sukabumi and Medan. In the fourth year of growth, an unexpected big disaster is coming, Pandemic Covid 19. The property business is greatly affected, people are afraid to leave the house, even less to buy a house. After struggling to survive for two years in a pandemic situation without firing any employees, Harmony Land started looking for the next opportunity to bring Harmony Land to the next level. One big issue that Harmony Land wants to solve is increasing the act per ask at A5 costumer journey. In 2021, the number of ask customers which have already contacted Harmony Land are 17.789, while the number of unit transactions are 105 houses. Only 0,59% act per ask and lost 17.684 potential customers. So, Harmony Land wants to increase the sales by developing a marketing strategy to increase conversion rate act per ask. This research uses the AFI framework. Analysis internal and external that will continue to Formulation strategy and be closed by the Implementation plan of that strategy. Through external analysis, there are many opportunities after pandemic covid where other competitors still wait and see, while customers start to bounce again. From the customer analysis, customers buy houses in Harmony Land because of price, location, design concept and selling service. So, for increasing act per ask, the proposed marketing strategy is to develop thematic residential in many locations with caregiver service to help more customers with many product option each target market area.
The Rights to Health Of Worker From the Perspective of Indoor Air Quality
Authors: Amriyati Amriyati
Published: May 2023

Indoor air quality really effects persons’ health, including workers whose time mostly spent at work. Persons’ conduct may create pollutant which effect indoor air quality. Unhealthy indoor air has caused more than four million people dead from pneumonia, stroke, systemic heart decease, obstructive lung decease and cancer.  Persons’ conduct must be regulated by law to ensure one’s rights and obligation do not violate others. This research was focused on how the rights to health of the workers from the perspective of indoor air quality was protected by law and what obligations were generated from the rights towards workers, employers and the state. This research was an analytical descriptive doctrinal one using library research to gain secondary data from related legislation and regulation as well as expert commentaries in textbooks and scientific journal articles. To ensure indoor air quality for workers, the workers themselves and the employers must be equipped with the knowledge and comprehension of the rights they possess and the obligation attached with the rights to implement the law on how they have to conduct to ensure the participation in the availability of healthy indoor air quality. Workers and employers shall not act nor omit which might resulted in unhealthy indoor air at work room through ensuring fresh air circulation, avoiding smoke and other polluting substances use in indoor rooms.
Functional Local Government Autonomy in Nigeria: Thesis for a Community Participation Model
Authors:   Senior Lecturer, Department of General Studies, Lagos State University of Science and Technology, Ikorodu, Nigeria., Aderogba Ademola Asimiyu , Aderogba Arafat Opeyemi ,   Ph.D. Student, Department of Political Science, Lagos State University, Ojo, Nigeria
Published: May 2023

The paper focuses on how local government autonomy can be effective and efficient. Recent research findings indicate that local governments in Nigeria are not productive, not efficient and not effective because of lack of autonomy, be it financial, administrative or political autonomy. Hence, there is a need to examine the deficiencies in the operation of local governments, and come up with a process model that can enhance functional local government autonomy. Therefore, relying on Descriptive Analysis method and Democratic Participation theoretical framework, the study examines how community participation in governance can be an impetus to achieve the objectives of autonomy, and proposes a Community Participation Model, as a way to strengthen an autonomous local government performance, otherwise, full autonomy will achieve nothing with the present state of local governments in Nigeria. The model further illustrates how the Community Development Associations can participate in governance to ensure that the planning, implementation, and evaluation represent the grassroots felt-need. The study recommends the following to actualise the functionality of the model: constitutional reforms to restore local government autonomy, enabling laws mandating the creation of Community Development Associations in all parts of Nigeria; and the States governments granting special fund to strengthen the operation of the Community Development Associations.
Experimental Study on Automatic Cleaning Roads using Water and Air
Authors: 1 Santhana Lakshmi , 2 Ravi kumar , 3 Jayashree
Published: May 2023

The cleaning and maintenance of the pavement is the need of the town and urban communities now a day. Assuming individuals stand with the ongoing maintenance process, it will just extend and develop the crisis. Any numerous unsafe substances which influence human as well as climate and makes road frightful. It gives bad impact on the lower part of vehicles, for example, vehicles motors, and plastic wastage can be the reasons for major and minor accidents. The durability of the pavement is extensively relied upon the temperature variation. The change in temperature creates undesirable stresses in the pavement, which leads to the development of cracks. Eliminating and controlling of this kind of issues is the challenging task. The basic ideology of this paper is to achieve a smart road by cleaning the pavements by using water and air pressure and prevention of distresses in concrete pavements due to temperature variation. This paper also highlights the solution for potholes in concrete pavements. Keywords: Nozzles, Pavement distress, Potholes, Road stud, Sensors for operation, Smart Road.
ON THE INDEPENDENT RAINBOW DOMINATION STABLE GRAPHS
Authors:   Islamic Azad University, GHOLAMI ELHAM , RAD JAFARI ,   Shahed University, TEHRANIAN ABOLFAZL ,   Islamic Azad University
Published: May 2023

"For a graph G and an integer k ≥ 2, let f : V (G) → P({1, 2, ..., k}) be a function. If for each vertex v ∈ V (G) such that f(v) = ∅ we have ∪u∈N(v)f(u) = {1, 2, ..., k}, then f is called a k-rainbow dominating function (or simply kRDF) of G. The weight of a kRDF f is defined as w(f) = P v∈V (G) |f(v)|. The minimum weight of a kRDF of G is called the k-rainbow domination number of G, and is denoted by γrk(G). An independent k-rainbow dominating function (IkRDF) is a kRDF f with the property that {v : f(v) ̸= ∅} is an independent set. The minimum weight of an IkRDF of G is called the independent k-rainbow domination number of G, and is denoted by irk(G). A graph G is k-rainbow domination stable if the k-rainbow domination number of G remains unchanged under removal of any vertex. Likewise, a graph G is independent k-rainbow domination stable if the independent k-rainbow domination number of G remains unchanged under removal of any vertex. In this paper, we prove that determining whether a graph is k-rainbow domination stable or independent k-rainbow domination stable is NP-hard even when restricted to bipartite or planar graphs, thus answering a question posed in [11]."
GENERALIZATIONS OF C3 MODULES AND C4 MODULES
Authors:   Jiaxing University, ZHU ZHANMIN
Published: May 2023

"Let A be a class of right R-modules that is closed under isomorphisms, and let M be a right R-module. Then M is called A -C3 if, whenever N and K are direct summands of M with N ∩K = 0 and K ∈ A , then N ⊕K is also a direct summand of M; M is called an A -C4 module, if whenever M = A⊕B where A and B are submodules of M and A ∈ A , then every monomorphism f : A → B splits. Some characterizations and properties of these classes of modules are investigated. As applications, some new characterizations of semisimple artinian rings, right V-rings, quasi-Frobenius rings and von Neumann regular rings are given."
"HYPERELLIPTIC DIOPHANTINE EQUATIONS FROM THE STUDY OF PARTITIONS"
Authors:   Babes-Bolyai University, ANDRICA DORIN , TURCAS GEORGE C. ,   "Simion Stoilow Institute of Mathematics of the Romanian Academy"
Published: May 2023

"We present two Diophantine equations that arise from some new results in the theory of partitions with equal sums. We link these to the problem of finding rational points on some hyperelliptic curves and we solve the latter, assisted by computer algebra packages, using a p-adic method pioneered by Chabauty and Coleman."
POTENSI AMPAS KELAPA (Cocos nucifera L.) SEBAGAI ALTERNATIF BAHAN PEMBUATAN KERTAS KOMPOSIT
Authors: Prasetia Retno , Purbawati Purbawati , Halikianoor Halikianoor
Published: May 2023

Coconut dregs is a waste that has non-wood fiber thus it is potential as a material for making composite paper. The use of coconut dregs in this study aims to determine its potential as a raw material for making composite paper through tensile resistance and tear resistance.

The making of composite paper in this study was carried out by combining coconut pulp and used HVS paper pulp. The design used was a completely randomized design (CRD) with 3 replications consisting of 3 treatments and a control. The data obtained were analyzed using the Anova test and the DMRT test with a level of 5%..

The highest paper tensile resistance test results were obtained by P1 which was 0.26 kN / m smaller than 1.26 kN / m (P0 as a control), as well as the highest paper tear resistance test results obtained by P2 at 340 mN smaller than 666 , 4 mN (P0 as control). Based on the data obtained, the addition of coconut dregs or not in making composite paper shows a potential that does not have a significant effect. This research has the potential to be developed for better paper quality.
Intergenerational Trauma in the Aftermath of Genocide
Authors: Wyatt Zoe
Published: May 2023

Intergenerational trauma can be understood as the transmission of historical trauma and its adverse effects and impact across generations. This has been witnessed across many nations, populations and marginalized groups, particularly in countries that have experienced long histories of war, systemic violence and/or human rights abuses. The article focuses on Cambodia in the aftermath of the Khmer Rouge and subsequent genocide as the impact of this short but profoundly devastating period in the country’s history continues to permeate many layers of life in Cambodia today. Some examples of trauma-informed research from Rwanda are also presented to highlight cross-cultural understandings of trauma and resilience. Through the research, this article explores the long-standing impacts of intergenerational trauma on the Cambodian population and discusses resilience in the aftermath of human rights violations.
Influence of demonetization on various sectors of the Indian economy
Authors: Prasad Anita , Goswami Anandajit , Gurtu Amulya
Published: May 2023

Background: India demonetized the currency in November 2016, scrapping 86.9 percent of the currency in circulation. This policy disrupted most economic activities because India was predominantly a cash economy. Purpose: The study aims to analyze the impact of demonetization on the informal-formal sector and the Indian stock markets, where investment reflects investors' confidence. Another purpose is to know the usefulness of demonetization in the proliferation of digitalization. Study design/methodology/approach: The study incorporates primary data to determine the impact on informal and formal workers' income and the acceptance of digitalization in rural-urban areas in Faridabad, Haryana. A survey was conducted, and samples for informal-formal workers and rural-urban households were collected and analyzed using the F test and the ANOVA model using an independent dummy or qualitative variables. The secondary data of the Indian stock market were empirically tested and forecasted using the Autoregressive Conditional Heteroskedasticity (ARCH) model. Finding/Conclusions: The empirical analysis reveals that after demonetization, informal workers' earnings dropped significantly, and there is a substantial income disparity between informal-formal workers. A wide gap persists in adopting digital transactions due to low awareness of digital instruments in rural areas compared to urban areas. On the contrary, no significant impact is noticed in the Indian stock market as the forecasted value of shares trading depicts positive growth. The study identifies the gaps in policy implementation. It exposes the implementation of macroeconomic policies ensuring the protection of the interest and livelihood of economically vulnerable populations. The spread of awareness towards electronic transactions may help to promote digitalization Limitations/future research: The study is limited to a few areas. Hence, the scope of future research rests on macro-level data where comparison could be conducted between rural and urban areas across various states in India.
USPJEŠNOST PRIMJENE LOGOPEDSKOG TRETMANA I REEDUKACIJE PSIHOMOTORIKE KOD DJETETA SA USPORENIM GOVORNO- JEZIČKIM RAZVOJEM- PRIKAZ SLUČAJA
Authors: Jusufbašić Samra , Abidović-Mačković Amela
Published: May 2023

Pojam usporenog govorno- jezičkog razvoja odnosi se na teškoće u razvoju receptivnih i ekspresivnih jezičkih sposobnosti, koje se najčešće mogu primjetiti u periodu od godinu i pol do treće godine. Multidisciplinarnim pristupom i procjenom roditelji dobivaju kompletan izvještaj o razvoju djeteta (govorno- jezički, psihomotorni i psihološki razvoj). U ovom radu cilj je prikazati kako se primjenom logopedskog tretmana trogodišnjeg djeteta sa usporenim govorno- jezičkim razvojem i reedukacijom psihomotorike postižu značajni rezultati u progovaranju, usvajanju prvih riječi, rečenica i postizanja doživljaja samog sebe i svoga tijela. Za procjenu receptivnog i ekspresivnog govora korištena su didaktička pomagala- slike, dok je za procjenu saznajne organizovanosti, praksične organizovanosti, gnostičke i praktognostičke organizovanosti korišten Praktikum opšte defektološke dijagnostike. Za procjenu psihološkog razvoja korišten Razvojni test autorice Čuturić (RTČ,1996). Primjenom logopedskog tretmana i reedukacijom psihomotorike evidentiran je uspjeh na polju receptivnog i ekspresivnog jezičkog razvoja, kao i u doživljaju samog sebe, svijesti o sebi kao ličnosti, ovladavanju sopstvenog tijela i organizacije pokreta.
KOGNITIVNA I EMOCIONALNA EMPATIJA KAO ČINIOCI STAVA UČENIKA TIPIČNE POPULACIJE PREMA VRŠNJACIMA SA SMETNJAMA U RAZVOJU
Authors: Lukić Ana , Đolem Slađana , Milić Jelena , Joksimović Bojan , Božinović Milena , Joksimović Vedrana
Published: May 2023

Djeca sa smetnjama u razvoju manifestuju teškoće u razvoju i ne dosežu zadovoljavajući nivo razvoja, naročito ako im se ne pruži podrška u vidu njege i obrazovanja. Viši nivoi empatije su značajan faktor koji može uticati na pojavu pozitivnijih stavova učenika prema vršnjacima sa smetnjama u razvoju. Cilj istraživanja je bio da se procjeni da li empatija ima uticaj na stavove učenika prema vršnjacima sa smetnjama u razvoju. Studija je obuhvatila 120 učenika 4. i 5. razreda osnovnih škola, oba pola, uzrasta 10 i 11 godina. Istraživanje je rađeno u Banjaluci tokom 2020.godine. Ispitanici su podijeljeni na dvije grupe, one koji su pohađali nastavu sa učenicima sa smetnjama u razvoju i one koji nisu. Za ispitivanje stavova učenika prema učenicima sa smetnjama u razvoju korištena je Čedok Mekmaster skala, dok je za procjenu empatije korišten Indeks međuljudskog reagovanja. Korelacionom analizom utvrđena je značajna (r=0,18; p<0,05) pozitivna povezanost između stavova učenika prema vršnjacima sa smetnjama u razvoju i zauzimanja perspektive. Učenici koji pohađaju nastavu sa učenicima sa smetnjama u razvoju imaju značajno (t=-2,3; p=0,02) niže vrijednosti ukupnog skora stavova (3,05±0,28) u odnosu na učenike koji ne pohađaju (3,16±0,28). Naše istraživanje je pokazalo da empatija imaju značajan uticaj na stavove učenika prema vršnjacima sa smetnjama u razvoju i da učenici sa višim nivoem empatije imaju pozitivniji stav prema ovim vršnjacima. Takođe, učenici koji su u inkluziji imaju negativniji stav prema vršnjacima ometenim u razvoju u odnosu na učenike koji nisu u inkluziji.
UTICAJ SPORTSKOG TURIZMA NA RAZVOJ DJECE U DOBA COVIDA
Authors: Zečić Memnun
Published: May 2023

Predmet istraživanja je je analiza i komparacija psihofizičkog stanja djece uzrasta od 4-6 godina u doba pandemije kada im je bilo oduzeto sve osim kućnog boravka. Poslije nekoliko mjeseci uvidjeli smo situaciju pretile djece sa viškom kilograma i neprilagođenim ponašanjem o čemu su roditelji svjedočili kao i agresivnost, psihotični nemir, hiperaktivnost, razdražljivost neposlušnost i plač. Poslije anketiranja pedesetak roditelja i u saradnji sa trenerima pokrenuli smo određene aktivnosti sportskog turizma u mogućim uslovima našeg životnog okruženja. Kroz devet disciplina: skijanje, klizanje, koturaljke, šetnja u prirodi, plivanje na moru, plivanje u bazenu, sportske sekcije i biciklizam aktivirali smo naše dječeke i djevojčice. Uz veliku podršku i rad roditelja i trenera svi su prošli i pokazali svoju uspješnost u ovim disciplinama. Vrednovali smo njihovo stanje na početku i poslije 8 mjeseci kako bi statističkim proračunom vidjeli razliku i uspješnost sportskog turizma kod djece. Statističkom metodom ANOVA dobili smo statistički značajne razlike u osam disciplina što objašnjavamo veoma dobrim uspjehom. Analizom frekvencija 28% djece je smršalo dok je 41% popravilo elemente neprilagođenog ponašanja i postalo relaksirano i opuštano. Značaj ovog projekta je društveno kotistan za djecu, pokazujući da kroz sportski turizam možemo pomoći djeci i ostalim da dođu do boljeg psihofizičkog stanja u doba pandemije COVIDA-19.
LOGOPED U INTERDISCIPLINARNOM TIMU
Authors: Zečić Sadeta
Published: May 2023

Govoriti o logopedu nekada i danas nije isto. Mnogo se toga pronjenilo u životima ljudi i i životu i načinu odrastanja djece. Rjetkos je danas da imate logopata sa patologijom verbalne komunikacije i artikulacijskih poteškoća. Danas vam dolaze djece sa kombinovanim poteškoćama gdje ja primarno: psihotični nemir, elementi autizma, nerazumjevanje naloga ponavljanje svega što vi govorite. Prođe dosta vremena da otpočnete raditi logopedski tretman. Logoped zaista mora biti veoma obrazovan iz,neuroplogije,psihologije, pedagogije, defektologije,surdologije i tiflologije kako bi u multidisciplinarnom timu mogao pomoći djetetu i na govorno-jezičkom planu.To smo pokazali i u našem istraživanju gdje smo u 30 djece primjenjivali ispitivanje u 17 segmenata poteškoća kod djece koja su imala nerazvijen ili usporen razvoj govora. T-test je pokazao da je poslije godinu dana rada na svih 17 praćenih segmenata nađena ststistička značajna razlika. Zaključujemo da u ove djece nije bilo primarna poteškoća u govorno jezičkom segmentu.
KOMPETENCIJE NASTAVNIKA U OSNOVNOJ ŠKOLI
Authors: Zilić Fata
Published: May 2023

Kompetencije nastavnika u skladu sa vremenom i potrebama učenika trebaju biti višestruke i višebrojne jer na taj način direktno utiču na kvalitet odgoja i obrazovanja učenika u osnovnim školama. Uzorak je činilo 50 nastavnika iz 7 osnovnih škola. Za potrebe ovog rada korišten je prilagođeni Upitnik koji se sastojao iz dva dijela. Prvi dio upitnika odnosio se na starosnu dob nastavnika, godine radnog staža i nivo obrazovanja nastavnika. Drugi dio upitnika se odnosio na samoprocjenu nastavnik i sadržavao je 30 pitanja. Istraživanja je bio utvrditi kompetencije nastavnika u osnovnim školama te utvrditi da li postoje razlike između kompetencija nastavnika u odnosu na starosnu dob, godine staža te nivo obrazovanja. Za testiranje istraživačkih hipoteza koristili smo jednosmjernu analizu varijanse (ANOVA) kao parametrijsku statističku metodu na nivou pouzdanosti od 95% tj. uz 5% rizika. Istraživanja su pokazali da ne postoji statistički signifikantnih razlika u populaciji u pogledu nivoa kompetencija između različitih nivoa obrazovanja (F=0,608, p<0,549 ). Takođe, uz rizik od 5% jednosmjerna analiza varijanse nije dokazala statistički signifikantne razlike između testiranih starosnih grupa nastavnika (F=0,245, p<0,784) niti u pogledu dužine radnog staža (F=0,311, p<0,734).
Discurso de cierre de gestión como Presidente de la Academia Nacional de Medicina, Paraninfo del Palacio de Las Academias. Jueves 28 de julio de 2022
Authors:   Individuo de Número Sillón XXXI de la Academia Nacional de Medicina de Venezuela, Caracas 1012, Venezuela., López-Loyo Enrique Santiago
Published: May 2023

Al llegar al final de nuestra gestión administrativa en la Academia Nacional de Medicina debo estar realmente satisfecho por lo que juntos fuimos capaces de lograr dentro de una situación inédita en nuestra vida contemporánea, lo que significa superar con creces el hecho de iniciar y culminar la responsabilidad de estar al frente de esta centenaria corporación dentro del decreto de restricción, dada la situación mundial generada por la irrupción de la infección por el virus identificado como SARS-CoV-2, o infección de la COVID-19.
Conferencia multifacética. Dr. Beato José Gregorio Hernández: un ser cabal contrariado. Epílogo
Authors:   Profesor Titular UCV Director Asociación de Egresados y amigos de la UCV, Hernández Ángel G.
Published: May 2023

¿Por qué este epílogo? La respuesta guarda relación con el doble propósito de la conferencia multifacética sobre el Dr. Beato. José Gregorio Hernández. Primero, contribuir con la comprensión de quien fue el hombre y ciudadano, Dr. José Gregorio Hernández, en tanto su propia existencia íntima, logros académicos y proceder social y, segundo, emprender la creación de la Cátedra Libre de Egresados y Amigos de la Universidad Central de Venezuela [CEA-UCV (La Cátedra).
Rail Operations Control Centres
Authors: Rozenberg Efim , Ozerov Alexey , Avramovich Zoran
Published: May 2023

The article presents an overview of common trends in the evolution of rail operations control as well as the factors stipulating the existing approaches to the design of Rail Operations Control Centres (ROCCs) around the world. Based on the comparative analysis of various ROCCs and traffic parameters, the authors propose some classification of global traffic control models. The article outlines further steps towards a more detailed analysis of ROCCs in terms of their effectiveness by introducing a number of additional criteria and performance indicators to be taken into account.
Verbal Means of Implementing Communication Strategies in English-Language Outdoor Advertising
Authors: Pishcherskaia Elena Nikolaevna
Published: May 2023

The analysis of advertising texts is an interdisciplinary problem studied at the junction of various fields of knowledge, the pragmalinguistic analysis of advertising, among other things, is based on its understanding in psychology, philosophy, marketing, etc. The object of research is the texts of English–language outdoor advertising. The subject of the study is the strategic features of outdoor advertising texts, the main verbal means of expressing communicative attitudes in them. The author examines in detail the main characteristics of the outdoor advertising text, which is creolized in its structure, that is, such a text where verbal and nonverbal components create a single semantic whole and contribute to achieving the goals of advertising impact. The main theories of creation and realization of the influencing potential of advertising texts are considered. The main conclusion of the study is the conditionality of the choice of linguistic and non-verbal means of communication in the advertising discourse, depending on the communicative attitudes, both explicit and hidden. The author's contribution is a description of the classification of general and particular communicative strategies and tactics of the outdoor advertising text, among which strategies of a cooperative and non-cooperative nature are highlighted. The description of strategies is carried out through the analysis of the main linguistic means of creating an influencing effect in an advertising appeal. The novelty and relevance of the study is due to the inclusion of non-verbal components in the semantic fabric of the text, and, consequently, the need to apply new approaches to the analysis of such texts.
The Assemble of Olympism and Nationalism: A Social Philosophical Analysis in Beijing 2022 Winter Olympic Games as A Case Study
Authors: Zhou Zhenhua
Published: May 2023

Each Olympic Games will provide new material for research in the field of sports philosophy and social philosophy. This article raises the problem of understanding sports as a participant in social development on the example of the 2022 Winter Olympics in Beijing. The author analyzes the phenomenon of combining the philosophy of social sports, represented by the modern Olympic movement, and traditional Chinese philosophy. The main conclusion is that sport, as a social force, is reborn in the modern era due to the combination of Eastern and Western cultures and civilizations. This gives rise to new social cognition. The leadership of the countries hosting the Olympic Games gain experience and the opportunity to demonstrate their own political and economic strength and deep mental foundations. The Beijing 2022 Winter Olympics, taking place in a completely new societal environment (COVID-19 pandemic, world power realignment) is used as a case study for analysis. Using this example, the article shows the social significance of the Olympic Games and emphasizes that the social value of sports and the Olympic movement is reflected in the "spirit of fair competition" and the "spirit of peace", "human intelligence". This is a relatively new direction in the development of research in the field of physical education and social philosophy, and the special contribution of this study is to study one of the promising trends in the development of sports, that is, the modern Olympic movement, integrated with the national culture of different countries.
Transposons are important contributors to gene expression variability under selection in rice populations
Authors: Castanera Raúl , Morales-Díaz Noemia , Gupta Sonal , Purugganan Michael , Casacuberta Josep M
Published: May 2023

Transposable elements (TEs) are an important source of genome variability. Here, we analyze their contribution to gene expression variability in rice by performing a TE insertion polymorphism expression quantitative trait locus mapping using expression data from 208 varieties from the Oryza sativa ssp. indica and O. sativa ssp. japonica subspecies. Our data show that TE insertions are associated with changes of expression of many genes known to be targets of rice domestication and breeding. An important fraction of these insertions were already present in the rice wild ancestors, and have been differentially selected in indica and japonica rice populations. Taken together, our results show that small changes of expression in signal transduction genes induced by TE insertions accompany the domestication and adaptation of rice populations.
Control of telomere length in yeast by SUMOylated PCNA and the Elg1 PCNA unloader
Authors: Singh Pragyan , Gazy Inbal , Kupiec Martin
Published: May 2023

Telomeres cap and protect the linear eukaryotic chromosomes. Telomere length is determined by an equilibrium between positive and negative regulators of telomerase activity. A systematic screen for yeast mutants that affect telomere length maintenance in the yeast
Saccharomyces cerevisiae
revealed that mutations in any of ~500 genes affects telomere length. One of the genes that, when mutated, causes telomere elongation is
ELG1
, which encodes an unloader of PCNA, the processivity factor for replicative DNA polymerases. PCNA can undergo SUMOylation on two conserved residues, K164 and K127, or ubiquitination at lysine 164. These modifications have already been implicated in genome stability processes. We report that SUMOylated PCNA acts as a signal that positively regulates telomerase activity. We also uncovered physical interactions between Elg1 and the CST (Cdc13-Stn1-Ten) complex, and dissected the mechanism by which Elg1 and Stn1 negatively regulates telomere elongation, coordinated by SUMO. We present a model that provides mechanistic insights on how chromosomal replication and telomere elongation are coordinated.
Higher social tolerance is associated with more complex facial behavior in macaques
Authors: Rincon Alan V , Waller Bridget M , Duboscq Julie , Mielke Alexander , Pérez Claire , Clark Peter R , Micheletta Jérôme
Published: May 2023

The social complexity hypothesis for communicative complexity posits that animal societies with more complex social systems require more complex communication systems. We tested the social complexity hypothesis on three macaque species that vary in their degree of social tolerance and complexity. We coded facial behavior in >3000 social interactions across three social contexts (aggressive, submissive, affiliative) in 389 animals, using the Facial Action Coding System for macaques (MaqFACS). We quantified communicative complexity using three measures of uncertainty: entropy, specificity, and prediction error. We found that the relative entropy of facial behavior was higher for the more tolerant crested macaques as compared to the less tolerant Barbary and rhesus macaques across all social contexts, indicating that crested macaques more frequently use a higher diversity of facial behavior. The context specificity of facial behavior was higher in rhesus as compared to Barbary and crested macaques, demonstrating that Barbary and crested macaques used facial behavior more flexibly across different social contexts. Finally, a random forest classifier predicted social context from facial behavior with highest accuracy for rhesus and lowest for crested, indicating there is higher uncertainty and complexity in the facial behavior of crested macaques. Overall, our results support the social complexity hypothesis.
Gene regulatory patterning codes in early cell fate specification of the C. elegans embryo
Authors: Cole Alison G , Hashimshony Tamar , Du Zhuo , Yanai Itai
Published: May 2023

Pattern formation originates during embryogenesis by a series of symmetry-breaking steps throughout an expanding cell lineage. In Drosophila, classic work has shown that segmentation in the embryo is established by morphogens within a syncytium, and the subsequent action of the gap, pair-rule, and segment polarity genes. This classic model however does not translate directly to species that lack a syncytium – such as Caenorhabditis elegans – where cell fate is specified by cell-autonomous cell lineage programs and their inter-signaling. Previous single-cell RNA-Seq studies in C. elegans have analyzed cells from a mixed suspension of cells from many embryos to study late differentiation stages, or individual early stage embryos to study early gene expression in the embryo. To study the intermediate stages of early and late gastrulation (28- to 102-cells stages) missed by these approaches, here we determine the transcriptomes of the 1- to 102-cell stage to identify 119 embryonic cell states during cell fate specification, including ‘equivalence-group’ cell identities. We find that gene expression programs are modular according to the sub-cell lineages, each establishing a set of stripes by combinations of transcription factor gene expression across the anterior-posterior axis. In particular, expression of the homeodomain genes establishes a comprehensive lineage-specific positioning system throughout the embryo beginning at the 28-cell stage. Moreover, we find that genes that segment the entire embryo in Drosophila have orthologs in C. elegans that exhibit sub-lineage-specific expression. These results suggest that the C. elegans embryo is patterned by a juxtaposition of distinct lineage-specific gene regulatory programs each with a unique encoding of cell location and fate. This use of homologous gene regulatory patterning codes suggests a deep homology of cell fate specification programs across diverse modes of development.
Microhomology-mediated circular DNA formation from oligonucleosomal fragments during spermatogenesis
Authors: Hu Jun , Zhang Zhe , Xiao Sai , Cao Yalei , Chen Yinghong , Weng Jiaming , Jiang Hui , Li Wei , Chen Jia-Yu , Liu Chao
Published: May 2023

The landscape of extrachromosomal circular DNA (eccDNA) during mammalian spermatogenesis, as well as the biogenesis mechanism, remains to be explored. Here, we revealed widespread eccDNA formation in human sperms and mouse spermatogenesis. We noted that germline eccDNAs are derived from oligonucleosomal DNA fragmentation in cells likely undergoing cell death, providing a potential new way for quality assessment of human sperms. Interestingly, small-sized eccDNAs are associated with euchromatin, while large-sized ones are preferentially generated from heterochromatin. By comparing sperm eccDNAs with meiotic recombination hotspots and structural variations, we found that they are barely associated with de novo germline deletions. We further developed a bioinformatics pipeline to achieve nucleotide-resolution eccDNA detection even with the presence of microhomologous sequences that interfere with precise breakpoint identification. Empowered by our method, we provided strong evidence to show that microhomology-mediated end joining is the major eccDNA biogenesis mechanism. Together, our results shed light on eccDNA biogenesis mechanism in mammalian germline cells.
Retrospective study of influencing factors on the outcomes of luteal phase stimulation in patients with dual stimulation
Authors: Chen Yuanyuan , Ye Hong , Bao Junhua , Cai Yanping , Hu Yuanbo , Yan Hongli
Published: May 2023

Background

Dual/double stimulation (DS) is an ovarian stimulation strategy that has emerged in recent years; it is characterized by two rounds of ovarian stimulation and oocyte retrieval in the same menstrual cycle. DS can greatly shorten the time required to obtain valid embryos in assisted reproduction. For fertility preservation, DS can speed up oocyte storage process. However, factors influencing luteal phase ovarian stimulation (LPS) outcomes in DS have not been elucidated.

Methods

A total of 156 cycles from 78 cases were studied. Patients were grouped and analyzed according to their follicular phase ovarian stimulation (FPS) types. Female ages, ovarian stimulation protocols, number of oocytes retrieved, embryo quality were recorded. Comparisons of outcomes were conducted between different groups.

Results

Our study found that LPS obtained similar outcomes to follicular phase stimulation (FPS), and that the choice of FPS protocol affected the efficiency of LPS, the antagonist protocol and progestin-primed ovarian stimulation (PPOS) protocol resulted in better embryo outcomes in LPS. In LPS of DS, sufficient stimulation duration was the guarantee of embryo quality (number of available embryos: β = 0.145, 95% CI [0.078–0.211], P = 0.000; number of high-quality embryos: β = 0.114, 95% CI [0.057–0.171], P = 0.000).

Discussion

This study provided ideas for the precise use of DS. We suggest to further expand the sample size of DS in the future, conduct prospective controlled studies, unify the sample size of each subgroup, include the ovarian reserve of patients in the grouping basis, and exclude the influence of male factors. We hope that this study will help further refinement of DS so as to maximize patient benefits from it.

Conclusion

When the DS strategy is considered in the follicular phase, the antagonist protocol and PPOS protocol are more recommended for better embryo outcomes in LPS. During LPS, adequate ovarian stimulation duration is the most important guarantee for LPS efficiency.
Effect of different ashes from biomass olive pomace on the mechanical and fire properties of gypsum-based materials
Authors:   Universidad Católica del Norte, Coquimbo (Chile), Peceño Begoña , Pérez-Soriano Eva M. ,   Department of Materials Science and Engineering and Transport, Escuela Politécnica Superior, Universidad de Sevilla, Seville (Spain), Ríos Jose D. ,   Department of Mechanical, Energy, and Materials Engineering. Escuela de Ingenierías Industriales, Universi-dad de Extremadura, Avda. de Elvas, Badajoz, (Spain), Luna Yolanda ,   Department of Chemical and Environmental Engineering, Escuela Superior de Ingenieros, Universidad de Se-villa, Seville, (Spain), Cifuentes Hector ,   Department of Continuum Mechanics and Structural Analysis, Escuela Técnica Superior de Ingeniería, Universidad de Sevilla, Seville, (Spain), Leiva Carlos ,   Universidad Católica del Norte, Coquinbo (Chile)
Published: May 2023

In this study, biomass ashes from different energy valorization processes and storage conditions were used to make fire-resistant materials. Some of the ashes were subjected to a carbonation process. An 80/20 ash/gypsum ratio was used in all compositions. The density and different mechanical properties (compressive and flexural strength, superficial hardness, and dynamic modulus of elasticity), as well as fire resistance properties (insulating capacity and heat absorption capacity), were evaluated at 28 days. The energy valorization had a great influence on the particle size and the Loss On Ignition (LOI) of the fly ash. By increasing both, materials with lower mechanical properties (90%) were produced. Fire resistance was similar for the different ashes tested, but 50% lower than the gypsum material. When the ashes of the materials were carbonated, the material increases compressive strength by 400% compared to ashes without the carbonation process, and the fire resistance was similar to those materials composed exclusively of gypsum, but also a source of CO2 capture is produced.
Eco-efficient analysis of thermal regulations applied to thermal envelopes of a dwelling in Chile
Authors:   Department of Construction Sciences, Faculty of Architecture, Construction and Design, Universidad del Bío-Bío, Concepción (Chile), Rocha Rubilar Aracely , Muñoz Sanguinetti Claudia ,   Department of Construction Sciences, Faculty of Architecture, Construction and Design, Universidad del Bío-Bío, Concepción (Chile), Salezer Gerardo ,   Department of Construction Sciences, Faculty of Architecture, Construction and Design, Universidad del Bío-Bío, Concepción (Chile), Cereceda Balic Gabriel ,   Department of Art and Design Technologies, Faculty of Architecture, Construction and Design, Universidad del Bío-Bío, Concepción (Chile)
Published: May 2023

The aim of this study is to comparatively evaluate the eco-efficient performance of the only two mandatory thermal regulations applied in Chile: The General Urban Planning and Construction Ordinance (OGUC), and the Atmospheric Decontamination Plans (PDA). Considering the PDA of the communes of Temuco and Padre las Casas, and the system limits of UNE-EN 15978:2012 for the "product" and "use" stages, this study covered the indicators of energy, carbon footprint, economic cost and emissions of fine particulate matter (PM2.5), on thermal envelopes of a house. Applying the PDA over the OGUC, the results indicate that: First, the contained energy increases by 12.4%, the carbon footprint by 8.1% and the economic cost by 7.8% in the stage of product; and second, it reduces the demand for heating, fuel consumption, carbon footprint, and PM2.5 emissions, by 19.4%, in the use stage. Finally, the study concludes that, for Chilean homes to improve their eco-efficient performance, an evaluation with a life cycle cost analysis (LCCA) approach, which allows analyzing their evolution over time, must be included in the mandatory thermal regulations that regulate them.
Durability performance of alkali-activated concretes exposed to sulfuric acid attack
Authors:   Department of Civil Engineering, Istanbul Gelisim University, Istanbul (Turkiye), Niş Anıl , Bilenler Altundal Melis ,   Department of Civil Engineering, Istanbul Gelisim University, Istanbul (Turkiye)
Published: May 2023

In this research, chemical durability performances of the alkali-activated slag (AAS), 50% ground granulated blast furnace slag and 50% fly ash (AFS), ordinary Portland cement (OPC), and geopolymer (GPC) concretes were investigated thoroughly under 5% sulfuric acid attack. All alkali-activated concrete specimens were produced considering the minimum binder content of 360 kg/m3 and the maximum alkali activator to binder ratio of 0.45 according to the XA3 environment given in EN 206-1 standard for OPC concrete. The visual inspection, weight change and compressive strength tests were performed to understand the influence of sulfuric acid attack on the resulting performances. Also, scanning electron microscope (SEM) and energy dispersive X-ray spectrometry (EDS) analyses were performed to examine the morphological variations in micro-scale. The mechanical performances and durability of alkali-activated concretes were also compared to the OPC concrete for structural utilization. The results revealed that AFS specimens showed the best durability, while GPC specimens exhibited the poorest durability. SEM/EDS results pointed out that AFS specimens exhibited denser and less porous microstructure, and the reductions in Al/Si and Ca/Si atomic ratios were observed under 5% sulfuric acid attack. In contrast, GPC specimens showed less dense and porous microstructure, and high aluminum leaching was observed. In addition, the wider interconnected macro cracks and high calcium leaching were observed in the AAS samples under 5% sulfuric acid attack. Finally, the AAS and AFS specimens can be utilized in structural applications, while GPC specimens should not be used with a minimum binder content proposed by EN 206-1 standard.