bluuebunny/crossref_metadata_2025 huggingface dataset:
Novedades corológicas para la brioflora del noreste ibérico y Andalucía
Authors: Miquel Jover , Cèsar Pedrocchi , Xavier Oliver , Rosa Ardiaca , Romà Rigol
Published: October 2023

Se dan a conocer 46 nuevas citas para 25 táxones de briófitos (5 hepáticas y 20 musgos), encontrados por los autores entre los años 2009 y 2021. Se aportan 3 novedades para Cataluña: Bryum gemmiferum, Dumortiera hirsuta y Ephemerum recurvifolium, mientras que 14 son novedades provinciales o, en el caso de Cataluña, novedades para sectores territoriales. También se aportan nuevas localidades de especies de interés.

46 new citations are given for 25 bryophyte taxa (5 liverworts and 20 mosses), found by the authors between years 2009 and 2021. 3 contributions are new to Catalonia: Bryum gemmiferum, Dumortiera hirsuta and Ephemerum recurvifolium, while 14 contributions are provincial novelties or, in the case of Catalonia, novelties for territorial sectors. New locations of species of interest are also added.
IMPACT OF SPRAYING 19:19:19 AS A DROUGHT MITIGATION TECHNIQUE ON YIELD AND B:C RATIO OF RAINFED GROUNDNUT IN CHITTOOR DISTRICT
Authors: SAHAJA DEVA  , R. PRASANNA LAKSHMI  , M.K. JYOSTHNA
Published: October 2023

The on-farm trial was conducted in the farmer’s fields of Chittoor district to assess the impact of spraying of 19:19:19 during water stress conditions of groundnut crop on yield and profitability during kharif, 2021 and kharif, 2022. Treatments assessed comprised of spraying of 0.5% 19:19:19 twice during the water stress conditions, spraying of 2% urea twice during water stress conditions and farmers practice (without spraying). Results of the study revealed that spraying of 0.5% 19:19:19 and 2% urea recorded 9.9% and 7.4% enhancement in the pod yield than the farmers practice (9.42 q ha-1). It was also recorded that spraying of 19:19:19 improved the number of filled pods per plant, 100 pod weight and seed weight by 25.1 g, 93.6 g and 38.9 g and by spraying of 2% urea by 24.9 g, 91.5 g and 37.0 g. Economic analysis revealed that additional cost of spraying of 19:19:19 (Rs.300/-) and urea (Rs.625/-) resulted in additional income of Rs.5005 ha-1 and Rs.3596 ha-1, respectively with a B:C ratio of 1.09 and 1.08, whereas, in farmers practice B:C ratio was found to be 1.00.
The Impact of Executive Academic Experience on Green Innovation in Manufacturing Corporations
Authors: Li Dehua , Xia Zhihu , Shi Yingying
Published: October 2023

social development. We select China's A-share-listed manufacturing corporations from 2011 to 2021 as the research sample to empirically study the impact of executive academic experience on green innovation in manufacturing corporations. Further, we test the relationship between executive academic experience and green innovation in manufacturing corporations under the mediating role of corporate social responsibility and the moderating role of heterogeneous environmental regulations. The study shows that (1) executive academic experience helps to promote green innovation in manufacturing corporations; (2) executive academic experience is conducive to promoting the fulfillment of social responsibility by manufacturing corporations; (3) corporate social responsibility plays a mediating role between executive academic experience and green innovation in manufacturing corporations; (4) environmental regulation positively moderates the relationship between executive academic experience and green innovation in manufacturing corporations, and both formal environmental regulation and informal environmental regulation positively moderated the promotion of green innovation in manufacturing corporations by executive academic experience.
Interaksi Sosial Remaja Pasca Rehabilitasi Narkoba di Nagari Paninjauan Kecamatan X Koto, Kabupaten Tanah Datar
Authors: Septianto Dio , Kamal Muhiddinur
Published: October 2023

Social interaction is something that teenagers need. Driven by high curiosity, this often leads to negative impacts such as drug abuse. One of the cases occurred in Nagari Paninjauan, a teenager finally fell into legal custody to go through the rehabilitation process. Even though they have been responsible for their actions, society's view of teenagers is still considered bad, causing gaps in their social interactions, so this is very interesting to research. The aim of this research is to find out the background and interactions of teenagers before they are introduced to drugs and to find out the form of their interactions after drug rehabilitation. This study used descriptive qualitative method. Data collection was carried out through observation and interviews with an informant. Based on the results of this research, it is known that informants who initially interacted actively in society, were ultimately influenced by their friendship environment to consume and sell drugs. However, after serving a sentence and training for five years and three months, the informant still received bad views from the public. Currently, the form of interaction that teenagers have is accommodation. Existing conditions also cause teenagers to tend to be passive in interacting with society. Thus, researchers suggest to informants to open themselves up and try to develop their potential so that society's view of them changes.
Konstruktivisme Teknologi Dalam Pembelajaran selama Implementasi Kurikulum Merdeka di SMA Negeri 13 Surabaya
Authors: Kumairo Mala Nur , Hidayah Putri Fitria , Nisa Vadilatun
Published: October 2023

Education has the responsibility to integrate new values in students caused by advances in technology and science. Appropriate learning methods are needed because the education system evolves with the changing times. One branch of the philosophy of knowledge known as constructivism emphasizes the idea that the knowledge we have is the result of our own construction. The issue addressed in this research is how SMAN 13 Surabaya implements technological developments in its teaching. The aim of this research is to analyze the extent of active student participation in the learning process, particularly through the constructivist approach, and how technology can be optimized to facilitate learning activities. The research method used in this study is descriptive qualitative. The results indicate that the utilization of technology in learning at SMAN 13 Surabaya is not yet running optimally, due to constraints such as the lack of teacher skills in using technology, inadequate facilities, and financial constraints.
The Effect of Good Corporate Governance on Financial Distress
Authors: Fadila Angraini
Published: October 2023

This research aims to examine the influence of Good Corporate Governance as proxied by the Board of Directors, Independent Commissioners, Audit Committee, and Institutional Ownership on Financial Distress partially or simultaneously. The research method used is quantitative and uses secondary data, namely service companies, one of which is the transportation sector listed on the Indonesia Stock Exchange. The sample used was 7 issuers, and the results were obtained using a purposive sampling method. The analytical method used is multiple linear regression analysis techniques with Spss Version 25 software. This research shows that overall, the size of the Board of Directors, Independent Commissioners, Audit Committee, and Institutional Ownership variables partially or simultaneously influence Financial Distress. This research can guide companies to understand the importance of mitigating financial risks by implementing strong GCG principles. It can include debt management, monitoring financial policies, and making wise investment decisions. The implications of this research can guide investors and creditors in assessing the risks and return potential associated with well-managed companies in terms of governance. The implication is that external stakeholders can use this information to support their investment decisions.
Comparing Black-Scholes and GARCH Models in Long Strangle Option Strategies for LQ45 Index
Authors: Hendrawan Riko , Safar Abdul
Published: October 2023

This study compared the Black-Scholes and GARCH models in a long strangle strategy applied to the LQ45 index using closing price data from 1998 to 2021. It aimed to assess the benefits, calculate returns during crises and non-crisis periods, and evaluate performance through Average Mean Square Error (AMSE). The Black-Scholes model consistently outperformed GARCH in one- and three-month options. One-month options had an average return of 28.64%, and three-month options, 43.31%. In crises, Black-Scholes delivered average profits of 43.36% for one-month and 45.14% for three-month options. In non-crisis conditions, profits averaged 26% for one-month and 42.84% for three-month options. Model performance varied by option type and market context. Black-Scholes excelled in one-month call options (1.268% error), while GARCH performed better in one-month put options (1.0981% error). For three-month options, GARCH outperformed in call options (1.270% error), and Black-Scholes dominated put options (3.117% error). In summary, the choice between models should consider market conditions, favoring GARCH during crises and Black-Scholes in non-crisis scenarios.
El despegue de la sanidad leonesa en la segunda mitad de los años sesenta del siglo XX. La construcción de los grandes hospitales privados
Authors: Zayas Carbajal María Ángeles , Castro González María Paz
Published: October 2023

En una época de precariedad sanitaria e inexistencia de camas hospitalarias, la capital de la provincia leonesa, siguiendo la estela de lo que ocurría en el resto del país, asistió, en la segunda mitad de los años sesenta del siglo XX, a la construcción de cinco hospitales, uno de titularidad pública y cuatro de titularidad privada, a los que dedicaremos este artículo. Objetivo principal: Evaluar la importancia de la década de los sesenta del siglo XX en el desarrollo sanitario de la capital de la provincia española de León. Metodología: Se ha realizado un estudio histórico descriptivo de las instalaciones sanitarias al inicio y al final de la década. Resultados principales: Se dotó de más de 900 camas sanitarias de titularidad privada y 280 de titularidad pública, además de un hospital antituberculoso y todo ello en el corto periodo de diez años. En solo cinco años, la oferta de camas privadas prácticamente se triplicó. Conclusión principal: La sanidad leonesa dio un salto cuantitativo y cualitativo para ofrecer a los ciudadanos instalaciones hospitalarias de titularidad privada que complementarían, en su caso, a la Seguridad Social y competirían con ella en la oferta de especialidades médicas y tecnología.
WebGIS Based Road Crash Information System: A Case Study
Authors: M S Saran  , Manju V S  , Vishnu V P
Published: October 2023

Road crashes in India is showing progressive growth since COVID time, despite many road safety measures and program the rate of crashes are not declining. Many a times the road safety measures are not implemented in proper geographical locations owing to lack of proper crash information, which include crash information of the past. Road crash information is thus a vital support for the road safety assessment programs that eyes for a reduction in the road crashes. In India, as in other developing countries, very little effort is taken to providing enough road crash information. The identification of road crash location, analysis and treatment of road accident black spots are widely regarded as one of the most effective approaches to road accident prevention. A user friendly web Geographic Information System (GIS) based Road Crash Information System (RCIS) is developed in the present study for Kerala State, India. An online platform to add, update and maintain the database of road accident black spots is offered by the system, including analysis functionalities. Database maintains a standard guideline for road crash reporting thereby reducing data redundancy. Integration of all crash data from accident locations and to filter data based on different criteria are the core objectives of this study. The study also focused on systematically sharing the accident black spot details to the public user through an online platform.
Generation and Validation of Digital Elevation Model Using RISAT-1 SAR Interferometry
Authors: Agrawal Ritesh
Published: October 2023

SAR Interferometry is one of the techniques used for generating three-dimensional information about the Earth’s surface, which converts the absolute interferometric phase data of complex radar signal into topographic information. The prime objective of the study was to explore the potential of the RISAT-1 data for interferometric analysis. In this study, an attempt has made to generate the DEM of the part of Bharatpur region, Rajasthan using InSAR techniques using FFT based instead of the conventional approach due to non-availability of precise orbits. The analysis was carried out using FRS-1 data of 3 m resolution and 25 km swath corresponding to 21 February 2015 and 18 March 2015 having temporal separation of 25 days. The accuracy assessment of the generated DEM was compared with the extracted reference elevation information over 53 points from the Cartosat-1 DEM. The accuracy of the Generated DEM observed as 11.8 m and mean error of 2.3 m.
Geospatial Application for Dairy Supply Chain Management
Authors: Changmai Sukalpa
Published: October 2023

The broad availability of geospatial data has changed how we think about solving problems. There are numerous uses for GIS and Remote Sensing in a variety of fields. Such a field includes Supply Chain Management where GIS is used to map various stages like producers, consumers, processing facilities, suppliers, distribution centres, and transportation routes for better decision making and enhanced flow of goods. In this study we are integrating geospatial technologies to map raw material source, routes taken for the delivery of processed items, areas served by a processing unit and finally model relationship between different factors of a dairy industry. Parameters taken involve import-export data of milk and milk products, roads network, service areas, and Normalized Difference Vegetation Index (NDVI). Aanchal Dairy in Dehradun district of Uttarakhand is considered for this study. The primary data was collected through field visits and the raw data was structured for further analysis. Secondary data was obtained from various verified internet sources. Results indicate certain regions with high quantity of raw milk supply and areas where processed products are delivered. Optimised routes and the areas where Aanchal Dairy provides its services are also defined. NDVI shows that places with high raw milk supply have better fodder for dairy cows. Finally the results are geospatially mapped and various relationships are presented in graphical form.
Monitoring Dynamics of Sprawling Bhopal “An Emerging Metropolitan”
Authors: Kurmi Durgesh
Published: October 2023

Sprawl refers to the horizontal expansion of the city, from core towards outskirts of the city Data extracted from Landsat imagery was utilized to quantify urban expansion of the Bhopal city with respect to direction and pattern from 1991-2021. A direct relationship between population and built-up area is established, which reflects urban sprawl. Statistical study and spatio-temporal analysis of the data is done to account for these changes. The research revealed that Bhopal City has majorly spread towards south and south-east directions in uncontrolled manner, engulfing used productive cropped areas. Sprawling pattern has evolved from radial to leap-frogging, with time.
Zeitgenössische Wachstumskritik aus wirtschaftsphilosophischer Perspektive : zur Rekonstruktion der Wachstumsdynamik als Verselbständigung cartesischen Denkens
Authors: Heumann Michael
Published: October 2023

Über 50 Jahre sind seit dem Erscheinen des ersten Berichts für den Club of Rome (1972) vergangen. Kritik am ökonomischen Wachstum ist mittlerweile weitgehend etabliert. In der akademischen und öffentlichen Debatte stehen sich indessen verschiedene Lager gegenüber. Anhänger eines Postwachstums gelten dabei gemeinhin als radikalste Wachstumskritiker. Selten wird jedoch die zeitgenössische Wachstumskritik selbst einer kritischen Untersuchung ausserhalb des Denkens in Lagerkategorien unterzogen. Stattdessen gilt auch in der Postmoderne die Devise der Nicht-Überschreitung planetarer Grenzen als ein verbliebener und akzeptierter normativer Rettungsanker mit Absolutheitsanspruch. Die vorliegende Arbeit seziert die weltanschaulichen Vorannahmen hinter der heutigen Wachstumskritik. Aus wirtschaftsphilosophischer Perspektive erweisen sich die Postwachstumsargumente bei genauer Analyse als selbstwidersprüchlich. Die Wachstumsdynamik kann so nicht überwunden werden, sondern wird im Gegenteil sogar perpetuiert. Die Ursache liegt dabei in der cartesianistischen Reduktion der Wachstumsfrage auf einen rein quantitativ und entsubjektiviert gedachten Problembereich.
Research Population and Sampling in Quantitative Study
Authors: Hossan Dalowar , Dato’ Mansor Zuraina , Jaharuddin Nor Siah
Published: October 2023

The study underscores the paramount importance of meticulous population selection and sampling strategy in research design. Providing researchers with a comprehensive overview of population considerations and sampling methods, it offers a valuable resource for enhancing the robustness and applicability of research outcomes across diverse disciplines. Researchers discuss the unit of analysis, unit of observation, population of interest, target population, sampling framework, and sampling methods in light of employee work engagement in Malaysia. Simple random sampling, stratified random sampling, systematic random sampling, cluster sampling (single-stage, double-stage, and multi-stage), phase sampling (two-phase and multiphase), convenience sampling, purposive sampling, quota sampling, snowball sampling, and volunteer sampling have been discussed for selecting the appropriate sampling method for the research titled Revisiting of JD-R Theory and the effect of leadership style and meaningful work on employee work engagement among the full-time operational employee in Malaysia. According to the discussion on population and sampling methods, researchers use non-probability sampling, specifically convenience sampling techniques, based on the accessibility and availability of the full-time operational employees of successful organisations in Malaysia. Researchers and practitioners alike can leverage the insights presented in this review to make informed decisions about population selection and sampling methods, ultimately contributing to the advancement of credible and impactful research.
Housing Attributes that Influence House Buying Decisions Making by Young Working Generations in Kuala Lumpur
Authors: MUSTAPA NOR ATIQAH , Razib Maizatul Rahmah
Published: October 2023

Buying a home is always everyone's dream. However, today's young working generation prefers to live in a rental house rather than buy a house. The decision to buy a house is not an easy one because it requires stable finances. A wrong decision in the purchase of a house can lead to negative consequences in the future. Unfortunately, even with all the government incentives through housing programmes that assist in the financial aspect, they still prefer to live in rented houses. In general, there are a number of factors that influence the housing buying decisions of the young working generation, especially those who live in a city like Kuala Lumpur. From past research, one of the factors is housing attributes. Therefore, this paper attempted to investigate the housing attributes influencing the housing-buying decisions of young working generations in Kuala Lumpur. A quantitative method is employed, and 384 sets of questionnaires were distributed purposefully to the young working generation in Kuala Lumpur. In order to analyse the data for this study, descriptive analysis and the Statistical Package for the Social Sciences (SPPS) version 29.0 were both employed. From the results obtained, all respondents agree that price, size and number of living spaces, and neighbourhood have the most influence on housing buying decisions, but there is one variable that the respondents did not agree on, and that is superstition.
Effect of addition of fillers on Cellulose/β-TCP polymer Composites: Thermal, Mechanical and Antimicrobial Properties
Authors: Kiruthika T. S. , Deepan Kumar B. , Jaisankar V.
Published: October 2023

Cellulose-based polymeric composites have received considerable attention as appealing biomimetic alternatives for a variety of biological applications because of their unique mechanical characteristics and appreciable bioactivity. In this investigation, four ternary polymeric composites were prepared, with cellulose serving as a typical common - -TCP) serving as a common bioceramic component. The naturally available hemp was used for the isolation of cellulose. The solution precipitation process was used to cr -TCP. Cellulose/Agar- -TCP, Cellulose/I- -TCP, Cellulose/Polyvinyl alcohol - -TCP were the four polymeric composites prepared. The thermal and mechanical properties of the prepared composites were analysed and were compared. The SEM images of these materials indicated that the presence -TCP in the composites reveals notable morphological changes in the surface that are appropriate for the cell adhesion nature. The antimicrobial properties such as antibacterial, antifungal, anticancer and in vitro wound healing ability of the prepared composites open a new perspective in the applications for biomaterials field.
Digital Model for Procurement Management in Thai Supply Chain
Authors: Chansamut Artaphon
Published: October 2023

An aim of the paper is to study and to assess digital model for procurement management in Thai supply chain. A samples are ten experts in the field of information and supply chain. The data is analysed by means and standardized deviations. The paper consists of seven elements namely main elements Suppliers , Producer, Finished goods and Customers and Satisfaction. The assessment about digital model in supply chain for the cargo maritime transport management in Thailand using Black-Box technique. The research findings revealed that digital model for procurement management in Thai supply chain is appropriate at the high level , the ten experts agreed.
Digital Supply Chain Model for Emergency Management in Thai Universities
Authors: Chansamut Artaphon
Published: October 2023

The purpose of paper is to study and to evaluate digital supply chain model for emergency management in Thai universities. The research sample totalling ten experts consisted of ten experts consisted of five experts on supply chain , five experts on digital technology. The employed research instrument is a questionnaire. Statistics employed for data analysis are mean and standard deviation.. The research findings digital supply chain model for emergency management in Thai Satisfaction comprises six elements namely main components suppliers, University, Good service and security, Customers and satisfaction. The paper found that digital supply chain model for emergency management in Thai has suitability in a good level that mean the model may be applies in support the tasks.
Lanczos Spintensor via the Andersson-Edgar’s Generator
Authors: Sivaraman R. , Morales J. , Ovando G. , López-Bonilla J.
Published: October 2023

For arbitrary geometries with Petrov types O, N, III, and D (empty), we construct the Andersson-Edgar’s generator for the Lanczos spinor.
Application of Artificial Neural Network Model for Improved Power System Protection in Port Harcourt 33 kV Network
Authors: Adebayo Adeniyi D. , Ajala Akintunde P.
Published: October 2023

Electric power distribution networks are exposed to the environment due to their length, for this reason, they are mostly affected by faults. These faults disrupt the continuous flow of power supply. There is also an associated loss of power that is generated that also determines the state of the economy. In order to reduce system downtime, it is necessary to integrate a system that detects and classifies faults quickly in order to hasten its clearance. This will bring about improvement in the efficiency and integrity of the power network. The artificial neural network as proposed in this study is meant to detect, classify and locate fault on the Rukpokwu 33-kV

feeder of Port Harcourt Electricity Distribution Company (PHEDC). Fault detector, classifier and locator, with feed-forward back propagation were employed in the research. Matlab Simulink software was used to model and simulate the distribution network. The model was trained using s values of voltages and currents. With the simulation results, the efficiency of the proposed network was demonstrated for fault detection, classification and location. Mean square error (MSE) and confusion matrix were used to evaluate the performance of the proposed model. Results showed that the acceptable MSE of 0.00000027736 and an accuracy of 100% were achieved, which is satisfactory.
More aromatic species with four atoms. B4 and N4.
Authors: Rzepa Henry
Published: October 2023

I discussed in the previous post the small molecule C4 and how of the sixteen valence electrons, eight were left over after forming C-C σ-bonds which partitioned into six σ and two π. So now to consider B4. This has four electrons less, and now the partitioning is two σ and two π (CCSD(T)/Def2-TZVPPD calculation, FAIR DOI: 10.14469/hpc/10157). Again both these sets fit the Hückel 4n+2 rule (n=0). Since B4 has
Personal Impressions from WATOC 2020 – Dispersion and non Born-Oppenheimer models.
Authors: Rzepa Henry
Published: October 2023

WATOC 2020 was just held in 2022 in Vancouver Canada, over one week. With many lectures held in parallel, it is not possible for one person to cover anything like the topics presented, so this is a personal view of some of those talks that I attended. As happens with many such events, common themes gradually emerge and here I highlight just two that struck me as important for the future of computational chemistry.
Unexpected Isomerization of Oxetane-Carboxylic Acids – an alternative autocatalytic mechanism evaluated.
Authors: Rzepa Henry
Published: October 2023

Previously, I looked at autocatalytic mechanisms where the carboxyl group of an oxetane-carboxylic acid could catalyse its transformation to a lactone, finding that a chain of two such groups were required to achieve the result. Here I look at an alternative mode where the oxetane-carboxylate itself acts as the transfer chain, via a H-bonded dimer shown below.
The Concept of Soft Skills Teacher Islamic Education Studies The Book 'Iẓat Al-Nasyi'īn By Sheikh Musthafa Al Ghalayani
Authors: Nadif Achmad , Nusucha Juli Amaliya , Rofiq Ainur
Published: October 2023

The Islamic religious education teacher is a figure of a leader who in every word or deed will be a role model for students. Departing from this, the researcher wants to analyze the book 'Idhatun Nasyi'in by Sheikh Musthafa Al- Ghalayani, because in the book the researcher finds several points as soft skills that a teacher must possess. The research approach used in this research is qualitative research. The data sources used are primary data sources and secondary data sources. Primary data sources were obtained from the book 'Iÿat Al-Nasyi'ÿn, and secondary data was obtained from the translated book 'Iÿat Al-Nasyi'ÿn, resource persons from MTS Ma'arif Kraton as well as articles, journals and websites, educational books and other relevant books. with the object discussed by the researcher. Data analysis is done by using content analysis (content analysis). There are thirteen soft skill points that must be possessed by an educator, especially for an Islamic religious educator. Among these points are intrapersonal skills which include being patient, sincere, daring to come forward, having courage, having hope, having the will, carrying out obligations, trying and trusting, and being confident. Interpersonal skills include: nationalism, the ability to lead, can be trusted and help. The concept of soft skills for Islamic education teachers contained in the book 'Iÿat Al-Nasyi'ÿn is also quite relevant in education in the current era 5.0 and appropriate when applied in learning activities at MTS Ma'arif Kraton.
A lattice modelling for tensile behaviour of textile-reinforced concrete composite
Authors: Tran Manh Tien , Hoang Đinh Phuc , Pham Duc Tho , Cao Minh Quyen , Ngô Văn Thức
Published: October 2023

Textile-based composites have been studied extensively in the past two decades as they are used in constructing newly fabricated structural elements. This paper presents numerical results of lattice modelling of textile-reinforced concrete in which the damage behaviour model was considered by cracking or crushing for the cementitious matrix. The lattice model was developed from the input data of constitutive materials in the literature and validated with the corresponding textile-reinforced concrete composites. The agreement of numerical results between the lattice model and other numerical modelling was also highlighted and analyzed. From the lattice model, the effects of several parameters on the textile-reinforced concrete properties were identified by the parametric studies. From these results, several suggestions were concluded for enhancing the mechanical properties of the textile-reinforced concrete.
Nghiên cứu thực nghiệm ảnh hưởng của áp lực bó đến cường độ chịu nén của bê tông
Authors: Vũ Ngọc Tâm , Đỗ Trọng Thành , Tống Tôn Kiên , Lê Việt Dũng
Published: October 2023

In this paper, the impact of confinement pressure on the compressive strength of concrete was carried out various levels of confinement on two concrete types, B20 and B25. As a result, the influence of confinement pressure on the compressive strength of concrete is quantified for the specific research problem at hand. The research findings provide recommendations for the application of the confinement effect concept in the design of reinforced concrete structures in Vietnam.
Xác định hệ số vượt tải khi thử nghiệm kết cấu chống đỡ tạm theo tiêu chuẩn Việt Nam hiện hành
Authors: Ngô Mạnh Toàn , Đặng Trọng Vinh , Đỗ Trần Hùng , Vũ Hồng Hà
Published: October 2023

The partial safety factor used when carrying out load testing on falsework is not defined in any current Vietnamese standards. On the other hand, the requirements for calculation as well as load testing of falsework are well defined in the European standards system. This paper presents the method for determining of partial safety factor for falsework load testing.
Evaluation of predominant frequency of 8 stories rc building using observation records
Authors: Pham Quoc Du , Ikeda Takaaki
Published: October 2023

Monitoring the structural health of buildings is crucial to ensure their safety and reliability, especially for aging structures that are susceptible to corrosion and wear. This study focuses on monitoring the changes in the predominant frequency of an 8-story reinforced concrete building located in Nagaoka, Japan, under the influence of external factors. Vibration records obtained from velocity sensors are used to measure the vibrations induced by daily activities and environmental factors. Signal processing techniques are employed to analyze the data and determine the predominant frequencies of the building’s structure. The research findings reveal that the predominant frequencies of the building exhibit cyclic variations over time, closely associated with the impact of external factors, particularly temperature changes in the environment. These temperature changes contribute to fluctuations in the stiffness of the reinforced concrete structure at different surface temperatures.
Effects of alkali activator types and fly ASH replacement rate on mechanical properties of geopolymer
Authors: Han Seunghyeon , Kim Gyuyong , Sasui Sasui , Choi Younsung , Ji Sungjun , Nam Jeongsoo
Published: October 2023

In this study, C-class fly ash (FA) and ground granulated blast-furnace slag (GGBS)-based geopolymer activated in NaOH and NaOH+Na2SiO3 were used to study setting time, compressive strength, porosity, etc. As a result of comparing the effects of alkali types on FA and GGBS geopolymer composites, NaOH + Na2SiO3 showed increased strength and density compared to NaOH, since the addition of Na2SiO3 provides the silica source to develop more compact structure. For the Class-C FA and GGBS mix, increased fly ash content resulted in prolonged setting times, reduced strength, and loose matrix. In addition, the non-reactivity of calcium in the mixture was observed as the fly ash content increased, leading to strength loss.
Inteligencia emocional y convivencia escolar
Authors: Delgado Peña María Jesús , Teves Quispe Julia , Palacios Garay Jessica Paola
Published: October 2023

En la actualidad educar en las emociones constituye el gran reto de las instituciones educativas del siglo XXI, debido que no basta que los estudiantes se desarrollen académicamente, sino también emocionalmente. El presente artículo tuvo como objetivo determinar la relación entre la inteligencia emocional y la convivencia escolar en las instituciones educativas públicas. El enfoque fue cuantitativo, tipo de estudio básica con un diseño no experimental transversal correlacional, el método hipotético deductivo. La muestra estuvo compuesta por 100 estudiantes del primer nivel de secundaria, muestreo fue no probabilístico por conveniencia. El instrumento utilizado para medir la inteligencia emocional fue el Trait Meta-Mood Scale TMSS 24 adaptación realizada por Extremera y Fernández-Berrocal (2004) y el instrumento para medir la convivencia en la institución educativa (CVICO-A) por Benites y Castillo (2014). Los resultados fueron que la inteligencia emocional se encontró en un nivel promedio (38%) y la convivencia escolar en el nivel inadecuado (44%) se concluye que existe una relación inversa entre la inteligencia emocional y la convivencia escolar.
Construyendo un nosotr@s interdependiente: el cuidado mutuo en los contramovimientos emancipatorios en España
Authors: Carbonero Gamundí Maria Antònia , Gómez Garrido María
Published: October 2023

Este artículo analiza iniciativas de solidaridad dirigidas a grupos vulnerabilizados en España en el contexto de la crisis posterior a 2008. El análisis se basa en la perspectiva de Polanyi sobre los contramovimientos que se desarrollan en la sociedad para contrarrestar las fuerzas mercantilistas inherentes al capitalismo (Polanyi, 2001; Fraser, 2012). El trabajo se basa en una serie de estudios de caso de iniciativas solidarias desarrolladas en el ámbito de la reproducción social y orientadas a cubrir necesidades básicas. Estos estudios de caso han mostrado cómo en estas iniciativas se repiten patrones similares tanto en los objetivos de los grupos como en sus prácticas. En primer lugar, persiguen la inclusión social a través de la justicia social; y, en segundo lugar, construyen una identidad colectiva alternativa, un "nosotros" que busca resistir al individualismo del mercado a través de la solidaridad y la ayuda mutua. Argumentamos que la constitución de esta identidad colectiva tiene lugar mediante la formación de círculos de reconocimiento (Pizzorno, 1986) en el activismo que recuperan una épica popular basada en la solidaridad y el cuidado mutuo, en la construcción de un “nosotr@s interdependiente” y que tienen el ámbito local como esfera de acción.
This article analyzes solidarity initiatives directed at vulnerable groups in Spain in the context of the post-2008 crisis. The analysis is based on Polanyi's perspective on the counter-movements that develop in society to counteract the mercantilist forces inherent in capitalism (Polanyi, 2001; Fraser, 2012). The work is based on a series of case studies of solidarity initiatives developed in the field of social reproduction and aimed at meeting basic needs. These case studies have shown how in these initiatives similar patterns are repeated both in the objectives of the groups and in their practices. First, they pursue social inclusion through social justice; and, secondly, they construct an alternative collective identity, a "we" that seeks to resist the individualism of the market through solidarity and mutual aid. We argue that the constitution of this collective identity takes place through the formation of circles of recognition (Pizzorno, 1986) in activism that recover a popular epic based on solidarity and mutual care, in the construction of an "interdependent we" and that have the local sphere as a sphere of action.
Los tipos de capital social bonding, bridging y linking: una revisión de los indicadores cuantitativos utilizados para su operacionalización
Authors: González Heras Alejandro
Published: October 2023

Los objetivos de este artículo son: primero, revisar cuáles son los indicadores cuantitativos utilizados en la literatura para aproximarse a los tipos de capital social bonding, bridging y linking; y, segundo, revisar su proceso de operacionalización. Se da cuenta de la ambigüedad metodológica con la que estos conceptos son tratados. Se argumenta que existe un buen número de indicadores que no se adecuan a los conceptos teóricos, basándonos en: (i) el solapamiento de indicadores elegidos que se da entre las dimensiones del concepto; (ii) la ambigüedad teórica del capital social en su definición (especialmente en la perspectiva comunitaria); (iii) la ambigüedad empírica en la elección de indicadores; (iv) la falta de un diseño ad hoc para medir el capital social.
The objectives of this article are: first, to review the quantitative indicators used in the literature to measure bonding, bridging and linking types of social capital; and, second, to review its operationalization process. It takes into consideration the methodological ambiguity with which these concepts are treated. It is argued that there is a good number of indicators that do not represent the theoretical concepts, based on: (i) the overlapping of chosen indicators between the dimensions of the concept; (ii) the theoretical ambiguity of social capital in its definition (especially from the communitarian approach); (iii) the empirical ambiguity in the choice of indicators; (iv) the lack of an ad hoc design to measure social capital.
Aprovechando y expandiendo la hiperflexibilización del empleo. El modelo Uber en España
Authors: Riesgo Gómez Víctor
Published: October 2023

Este artículo describe y analiza las estrategias empleadas para introducir Uber en España. Se emplea el concepto de entramado sociotécnico poniendo de manifiesto la interacción de múltiples factores para lograr la estabilización del modelo. Entre ellos es relevante el papel jugado por la tecnología, pero este concepto nos sirve para considerar la importancia de otras cuestiones o las diferentes dimensiones que encierra su uso.
Concretamente, se describen las adaptaciones respecto al diseño original que tuvo que realizar el modelo Uber para lograr operar en España, poniendo atención a la situación de mercado que se estableció y su influencia sobre las condiciones de trabajo de su fuerza laboral. Se considera como un rasgo característico del modelo la hiperflexibilidad, circunstancia previamente existente en el mercado de trabajo español, pero que es aprovechada y expandida por medio del empleo de los algoritmos aplicados a la gestión del trabajo. Esto supone un incremento aún mayor de dicha hiperflexibilidad descrita en el texto.
Los datos empleados para el análisis proceden de un prolongado trabajo de campo. Este material es combinado con la información procedente de fuentes secundarias, principalmente prensa económica, sentencias judiciales y los datos proporcionados por el Ministerio de Transportes Movilidad y Agenda Urbana español. La principal aportación de este trabajo reside en que da cuenta de parte de un trabajo con un nivel de extensión y profundidad inédito para el caso español.
This article describes and analyzes the strategies used to introduce Uber in Spain. The concept of sociotechnical framework is used, highlighting the interaction of multiple factors to achieve the stabilization of the model. Among them, the role played by technology is relevant, but this concept helps us to consider the importance of other issues or the different dimensions involved in its use.
Specifically, we describe the adaptations with respect to the original design that the Uber model had to make in order to operate in Spain, paying attention to the market situation that was established and its influence on the working conditions of its workforce. A characteristic feature of the model is considered to be hyper-flexibility, a circumstance previously existing in the Spanish labor market, but which is exploited and expanded through the use of algorithms applied to labor management. This implies an even greater increase in the hyperflexibility described in the text.
The data used for the analysis come from extensive fieldwork. This material is combined with information from secondary sources, mainly the economic press, court rulings and data provided by the Spanish Ministry of Transport, Mobility and Urban Agenda. The main contribution of this work lies in the fact that it reports part of a work with an unprecedented level of extension and depth for the Spanish case.
Revitalización sindical y nuevo sindicalismo en el capitalismo de plataformas: una comparación de los casos de España y Portugal en el sector del reparto digital
Authors: Sanz de Miguel Pablo , Arasanz Juan , Brandão Moniz António , Boavida Nuno
Published: October 2023

La irrupción de la economía de plataformas constituye el modelo más reciente de prácticas de externalización y flexibilización de la organización de la producción, apoyadas en el desarrollo de las tecnologías de la información y la comunicación. La difusión de este modelo de negocio ha ahondado en la expansión de diferentes figuras laborales precarias, siendo la figura del falso autónomo la más característica.  El modelo de negocio basado en las plataformas digitales tiene también el efecto de limitar la capacidad sindical para representar y defender a los trabajadores, impidiendo o limitando, por ejemplo, el recurso a la negociación colectiva.  El presente artículo compara las estrategias de revitalización sindical desplegadas en España y Portugal en el sector del reparto digital de comida a domicilio (rider) por sindicatos tradicionales, y asociaciones de repartidores y trabajadores precarios.  El artículo muestra cómo en ambos países, los sindicatos han compatibilizado estrategias de organización y movilización con acciones encaminadas a influir en la esfera política y regulatoria. No obstante, se evidencia una mayor experimentación de prácticas en el caso español, así como un mayor impacto e influencia de sus estrategias en términos políticos. El artículo también revela importantes diferencias entre ambos países respecto a la relación entre los sindicatos tradicionales y las asociaciones de repartidores.
The emergence of the platform economy is the most recent model of outsourcing practices and the flexibilization of the organisation of production supported by the development of information and communication technologies. The spread of this business model has led to the expansion of different precarious forms of employment, the most common being the bogus self-employed. The business model based on digital platforms also has the effect of limiting the capacity of trade unions to represent and defend workers, preventing or limiting, for example, resource to collective bargaining. This article compares the trade union revitalisation strategies deployed in Spain and Portugal in the rider sector by traditional trade unions and associations of delivery workers and precarious workers. The article shows how, in both countries, unions have combined organising and mobilisation strategies with actions aimed at influencing political and regulatory expectations. However, there is evidence of a greater experimentation of practices in the Spanish case, as well as a greater impact and influence of their strategies in political terms. The article also reveals important differences between the two countries regarding the relationship between traditional trade unions and delivery workers' associations.
Los discursos de los huéspedes de Airbnb en Lima-Perú
Authors: Retes Roberto , Lovón Marco
Published: October 2023

Airbnb es un fenómeno turístico mundial que afecta el comercio local. En el Perú, se ha incrementado este tipo de servicio. Sus seguidores valoran la estadía y las prestaciones del lugar y escriben sobre ello para recomendar o desaconsejar. El objetivo de este trabajo es analizar los discursos a través de estrategias lingüísticas de los huéspedes que se alojan en Lima-Perú. Metodológicamente, se ha recogido un corpus formado por 91 muestras textuales, que son de uso frecuente y procedentes de huéspedes de los distritos más turísticos de Lima. Se concluye que los huéspedes crean discursos generalmente sobre su estadía, su comodidad y seguridad, que posicionan el servicio colaborativo, el cual los convierte en consumidores concentrados en el turismo del hospedaje que del sector cultural. Con ello, ponen en juego la reputación de los anfitriones y logran que la información publicada sea de utilidad para el turismo potencial.
Airbnb is a worldwide tourism phenomenon that affects local commerce. In Peru, this type of service has increased. Its followers value the stay and the benefits of the place and write about it to recommend or advise against it. The aim of this paper is to analyze the discourses through linguistic strategies of guests staying in Lima-Peru. Methodologically, a corpus consisting of 91 textual samples has been collected, which are frequently used and coming from guests in the most touristic districts of Lima. It is concluded that guests generally create discourses about their stay, comfort and safety. In doing so, they put the reputation of the hosts at stake and make the published information useful for potential tourists.
Restrictions and New Possibilities of Technical and Conservation Diagnostics of Wood in Heritage Buildings
Authors: Drobiec Joanna , Nowogońska Beata
Published: October 2023

Identifying the mechanical properties of wood in existing buildings allows the search for an effective way to renovate wooden structures. Tests conducted on the historic structure's tissue preclude the use of destructive testing. Individual elements of the structure can be subjected to non-destructive testing (NDT) conducted in situ. The NDT testing methodology presented in the article is based on the use of ultrasonic and sclerometric technology. These methods can be used to determine the sites of biological corrosion and determine the effect of internal defects on the quality of wood. Ultrasonic testing usually uses devices that emit a longitudinal wave. The study additionally applied the author's method using devices analyzing the velocity of transverse wave flow for testing historic wood. The research was conducted on the roof truss of the heritage church of the Sacred Heart of Jesus in Jastrzębie Zdrój.