bluuebunny/crossref_metadata_2025 huggingface dataset:
A unique double tango: Construct validation and reliability analysis of risk perception, attitude and practice (RPAP) questionnaire on dengue infection
Authors: Zamzuri Mohd ‘Ammar Ihsan Ahmad , Jamhari Mohd Nazrin , Faisal Ghazi Hasanain , Muhamad Hasani Muhamad Hazizi , Mohd Ali Noor Khalili , Abd. Rashid Mohammad Faid , Hod Rozita , Dapari Rahmat , Hassan Mohd Rohaizat
Published: August 2021

Introduction/background

Dengue fever remains a public health threat despite being preventable. A solution to the constant problem of dengue infection will require active intervention and a paradigm shift. Assessing perceived risk and correlating it with the attitude and practice of the community will help in designing appropriate measures. However, possible instruments for these assessments come with limitations.

Objective

The aim is to develop and validate a new scoring-based questionnaire, using dual statistical approaches to measure risk perception, attitude, and practices (RPAP) related to dengue in the community.

Methods

The RPAP questionnaire was developed bilingually using the International Society for Pharmacoeconomics and Outcome Research (ISPOR) guidelines. Content analysis was reviewed scrupulously by four expert panels. The initial 35-item scale was tested among 253 Malaysian respondents recruited non-probabilistically via multiple online platforms. Two statistical methods were employed to measure the construct validity: Exploratory Factor Analysis (EFA) as part of the Classical Test Theory (CTT) measurement, while Rasch Measurement Analysis (Rasch) was performed for the Item Response Theory (IRT) measurement. All results were cross-validated with their counterpart to ensure stability. Confirmatory Factor Analysis (CFA) was used to obtain a model fit index.

Results

29 questions were retained after the final analysis. Both EFA and Rasch analysis detect multidimensionality. Nine latent factors were extracted from EFA, while only eight factors remained in the final model following CFA: 1) perceived susceptibility; 2) perceived severity; 3) perceived barrier; 4) perceived benefit; 5) cues to action; 6) self-efficacy; 7) attitude; and 8) practice. All items had adequate factor loadings and showed good internal consistency. The final model after CFA achieved a good fit with an RMSEA value of 0.061, SRMR of 0.068, PNFI of 0.649, and GFI of 0.996.

Conclusion

The RPAP questionnaire contains 29 items and is a reliable and accurate psychometric instrument for measuring the risk perception of dengue fever, attitude, and practice of the community in dengue prevention. The Rasch measurement provides additional rigour to complement the CTT analysis. This RPAP questionnaire is suitable for use in studies related to dengue prevention in the community.
Work-life balance amongst dental professionals during the COVID-19 pandemic—A structural equation modelling approach
Authors: Pai Swathi , Patil Vathsala , Kamath Rajashree , Mahendra Mansi , Singhal Deepak Kumar , Bhat Vishal
Published: August 2021

Background

The Coronavirus disease (COVID-19) outbreak in 2019, has shocked the entire world. As an effort to control the disease spread, the Indian government declared a nationwide lockdown on March 25th, 2020. As dental treatment was considered high risk in the spread of COVID-19, dentistry became one of the most vulnerable professions during this time. Dental professionals had to face job layoffs, salary cuts in professional colleges, closure of private clinics resulting in huge psychological, moral, and financial crises. Studies during the previous and present pandemics have shown mental issues among health care workers necessitating institutional reforms, along with early care and support. A balance in the work-life amongst professionals is the key to better efficiency and, was majorly affected during the COVID-19 pandemic lockdown due to sudden unexpected changes. Hence this study was conducted to understand the changes they underwent both at home and professional front with a hypothesis that physical and mental health, activities, relationship status, and workplace influence the work-life balance.

Methods

A pre-validated questionnaire survey was done on dentists across India. Structural Equation Modelling and path analysis were applied to the data collected.

Results

The results of the study supported the hypothesis that factors like physical and mental health, activities, relationship status, and workplace influenced the work-life balance directly. A significant imbalance was seen amongst the female dentists.

Conclusion

The present study proved the unpreparedness among dental professionals. Hence an evolutionary phase in every field with better working protocols, robust mental health support, and a focus on strategies to face future such emergencies is required.
Vállalati felelősség mint érték
Authors: Angyal Ádám
Published: August 2021

A szerző munkájában olyan fontos fogalmakat elemez, mint érték, felelősség, és vizsgálja ezek jelenlétét a vállalatok tevékenységében. Esszéjében megfogalmazza azokat a lehetőségeket, amelyek segítségével egy vállalat felelősségteljes gazdálkodást folytathat.
Humán tükör - körkép a hazai szervezetekben a HR tevékenységre vonatkozó elvárásokról és annak megítéléséről I. rész
Authors: Bokor Attila , Bíró Kata , Kováts Gergely , Takács Sándor , Toarniczky Andrea
Published: August 2021

A Budapesti Corvinus Egyetem Vezetőképző Központja és Vezetési és Szervezési Tanszékének munkatársai által végzett Humán Tükör című kutatás legfőbb célja az volt, hogy az élenjárónak tekinthető hazai HR gyakorlat megvizsgálásával feltárja, hogy melyek a HR terület működését leginkább befolyásoló vezetői elvárások, és jelenleg miként értékelik a terület teljesítményét a vezetők, illetve maguk a HR-esek. A kutatás eredményeit a szerzők két részben mutatják be. Jelen cikk az elméleti hátteret és a kérdőíves felmérés legfontosabb tanulságait tárgyalja, a következő számban megjelenő rész pedig a kvalitatív felmérés eredményeivel árnyalja a képet. A kutatási kérdések természetesen csak a két - egyébként is egymásra épülő - módszertan tanulságainak integrált felhasználásával válaszolhatók meg.
Az információgazdálkodás kihívásai a globális információs gazdaság korában
Authors: Kiszl Péter
Published: August 2021

Napjainkban már senki sem kérdőjelezi meg az információ- és a tudásmenedzsment alkalmazásának a gazdasági életben betöltött nélkülözhetetlen szerepét. Az is nyilvánvaló, hogy a mindehhez szervesen kapcsolódó globális információs gazdaság törvényei kivételes jelentőséggel bírnak a vezetéstudomány művelői számára. Jelen elméleti alapvetés több nemzetközi és hazai szakember, valamint a szerző információgazdaságról, információellátásról alkotott megállapításait tömöríti, kiindulópontul szolgálva a téma további, elmélyült tanulmányozásához.
Influence of bonding condition between layers on overlay design of flexible pavements
Authors: Rocha Marcos Lamha , Marques Geraldo Luciano de Oliveira , Silva Rafael Cerqueira , Motta Laura Maria Goretti
Published: August 2021

The interface bonding conditions between the pavement layers is one of the main factors influencing the performance of the pavement structure. The present paper analyzes the effects of the interface conditions between the layers on the process of overlay design in flexible pavements. The data were collected by deflection testing using Falling Weight Deflectometer (FWD) and by drilling cores. Simulations were performed in the software BackMeDiNa, MeDiNa and AEMC for three different conditions of interface between the layers. The data of backcalculated moduli, overlay thicknesses, cracked area and fatigue damage were compared under different bonding conditions. In most of the simulations, backcalculated moduli in the de-bonding condition were higher than ones in the full-bonding between the layers. For the overlay design, the modular sets obtained from the different interface conditions led a slight difference in the thickness of the new asphalt layer (reinforcement), but with higher percentages of cracked area for the structures with full-bonding condition. In the analysis of the fatigue damage, the results showed that the damage obtained with the full-bonding layers was higher than that one obtained with de-bonding interfaces and the bonding between the surface and base layers.
A INFLUÊNCIA DA ELEVAÇÃO RELATIVA DO TERRENO SOBRE A INFESTAÇÃO LARVÁRIA PELO MOSQUITO AEDES AEGYPTI
Authors: Fonseca Diego de Sousa Ribeiro , Garcia Ricardo Alexandrino
Published: August 2021

O objetivo do trabalho foi examinar a correspondência dos focos do mosquito Aedes aegypti com dados de altitude e declividade do ambiente citadino de Montes Claros-MG. A partir dos resultados, o assunto poderá contribuir nessa temática necessária, a respeito da qualidade urbana e a geografia da saúde social.  Os resultados mostraram um coeficiente de determinação (R²) final igual a 0,973 - o que denotou alto poder preditivo para a combinação das variáveis independentes trabalhadas. O Índice Breteau de 2016 foi aquele com maior peso explicativo (p < 0,01) entre o conjunto de dados para a explicação da infestação larvária ocorrida em 2017. Foi verificado que a altitude média foi significativa nessa associação (p < 0,05), e apresentou correlação negativa conforme o coeficiente parcial de regressão (-6,460 e t = -2,157). Em segundo plano, a altitude máxima foi significativa (p < 0,08). Chegou-se a conclusão de que, numa relação do período anterior com o seguinte, nas áreas de maior incidência larvária, quanto mais baixa é a altitude, maior é a infestação pelo mosquito.
APLICAÇÃO DA ANÁLISE MORFOMÉTRICA DE BACIAS HIDROGRÁFICAS COMO SUBSÍDIO AO ENTENDIMENTO DOS PROCESSOS CRESCENTES DE INUNDAÇÕES NA MALHA URBANA DA CIDADE DE UBÁ-MG
Authors: Da Silva Jéssica Lana de Souza , Costa Rômulo Montan , Zaidan Ricardo Tavares
Published: August 2021

As análises morfométricas são importantes ferramentas metodológicas na interpretação do comportamento hidrológico e da dinâmica geomorfológica de uma bacia hidrográfica. Tal assertiva ganha importância, a partir do momento em que os fenômenos de inundações compreendem um dos principais problemas ambientais na América Latina e Brasil. Nesse sentido, o objetivo do presente estudo é avaliar comparativamente, com base nas características lineares, zonais e hipsométricas, a morfometria de onze sub-bacias de contribuição do Ribeirão Ubá, a fim de apreender aspectos qualitativos que possibilitem subsidiar o entendimento de fatores intrínsecos às inundações da cidade de Ubá-MG. Para a realização das análises morfométricas gerou-se uma base cartográfica constituída por arquivos vetoriais e matriciais; os mesmos foram gerenciados, manejados e tratados através do software ArcGIS 10.1. Posteriormente, uma integração qualitativa dos resultados foi realizada indicando as sub-bacias do Ribeirão Ubá que apresentam características morfológicas mais propícias às inundações. Nesse sentido, três sub-bacias foram categorizadas como de alta suscetibilidade geomorfológica às inundações, devendo receber atenção especial. As mesmas foram denominadas como sub-bacias 5, 6 e 7, apresentando caracterítiscas de alta declividade, alta amplitude altimétrica e significativo número de canais de primeira ordem.
PERSPECTIVAS SOBRE A VALORIZAÇÃO DA GEODIVERSIDADE E A GEOCONSERVAÇÃO NA AMAZÔNIA
Authors: Santo Celina Marques do Espirito , De Andrade Milena Marília Nogueira , Costa Jucilene Amorim , Machado Danusa  da Silveira , Lopes Walmira Ferreira
Published: August 2021

As discussões sobre a valorização da geodiversidade têm ganhado destaque no cenário brasileiro e, mais recentemente, na Amazônia. Assim, o presente artigo analisa algumas iniciativas que permitem a reflexão sobre o contexto de discussões que circundam a temática da geodiversidade na Amazônia legal brasileira. Para alcançar o objetivo proposto, os procedimentos metodológicos constaram de: I - levantamento e análise do referencial teórico-metodológico e documental voltados a temática pesquisada; II - levantamento e análise das propostas de criação de geoparques para os estados da Amazônia Legal; III - levantamento e análise dos registros de geossítios e sítios da geodiversidade existentes nas plataformas Comissão Brasileira de Sítios Geológicos (SIGEP) e Cadastro de Sítios Geológicos (GEOSSIT); IV - levantamento de projetos de pesquisa, ensino e extensão voltados às temáticas da geodiversidade, geoconservação, Patrimônio Natural do meio abiótico, geoturismo e geoparque, na Amazônia; e V - tabulação das informações e representação em forma de mapas, tabelas, quadros, fotos e gráficos. Os resultados apontam que a Amazônia encontra-se em fase de amadurecimento conceitual e operacional, com barreiras no que diz respeito a infraestrutura e acesso a muitas áreas e ao fomento a atividades de pesquisa.
Nahw Wajh Jadīd: al-Muḥāwala fī Tarsīkh Maqāṣid al-Sunna al-Nabawiyya bi Indūnīsiyā [Toward a New Perspective: An Attempt in Strenghtening Maqāṣid al-Sunnah in Indonesia]
Authors: Mufid Abdul
Published: August 2021

The notion that the Qur'an is always relevant all the time and space can also be applied to hadith. Its due to hadith itself, in fact, is an embodiment of Qur’anic teachings which means it comes from God’s revelation-Allah directly. Therefore, the slogan should not only be comprehended on rhetoric limitation, but rather be applied in religious life, national life, and state of life regularly. Considering the length of time and space in which starting from the emergence of Hadith until nowadays, of course, the gap between the hadith and the reader space was founded. Furthermore, added with the dark stories and dark histories in the past such as the phenomenon of hadith forgery, of course, it adds to the tension and the extent of the gap. According to the fact as mentioned, lead the researcher to conduct this study. Moreover, as a form of problem-solving to minimize the gaps, it really necessary attempts. Maintaining the values of hadith and the main objectives of hadith is the answer that can be pursued through two important attempts, there are: The first one is contextualization and revitalization of the hadith message. This step is carried out to reveal the fundamental message of the hadith in order to answer the gap as well as a bridge time and space, and the second one is applying it to the ulumul hadith principles, such as asbabul wurud and also is influenced with local wisdom. Furthermore, the scope of this study not only limited to focusing on studying the reconstruction of interpretations of hadith but also includes information on how to produce meaning and apply the concept of contextualization of the hadith's message. In addition, studying of how to explain the contextualization of hadith with the context of contemporary Indonesia through the reinterpretation and reproduction of the meanings of three phenomena; 1) the unification of the hijriyah calendar in Indonesia, 2) the reading of sighat ta'liq for the bridegroom, and 3) the inheritance of different religions.
Enriching Socioreligious Dynamics: A Macrostructural Analysis on Publications of the Indonesian Association for the Sociology of Religion (ASAGI)
Authors: Sofia Adib
Published: August 2021

Indonesian Association for the Sociology of Religion (ASAGI, abbrivated from Indonesian) accomodates 15 Study Programs of Sociology of Religion within the state Islamic universities of Indonesia. The association have had a deal in vision, mission, scientific development, curriculum design, compulsory courses and others. However, each of the fifteen study programs has its own scientific characteristics due to the differences from its history, background, and developmental direction. Academic journals, the output and the media that are directly related to the intellectual society, should be able to reveal the scientific characteristics of each institution. However, the characteristics is not necessarily easy to carry out. This writing reveals two premises, namely; First, differentiating each institution's idiosyncratical theme through its journal's macrostructure; Second, the suitability of discourses published by a ASAGI associated-journal with the identity and narative expectation of each institution concerned
Translating the Transcends of God's World in the Arabic-Quran into Balinese
Authors: Rizal Efri Arsyad , Sobirin Mohamad
Published: August 2021

The development of Quranic translation in Indonesia generally showed the total adoption of the fixed theological words and phrases of the Arabic-Qur’an as loanword in the translation work. For some local communities, it does not make them easier in understanding the messages of the Quran through its “untranslated” words and phrases. So, some parties within Muslim communities tried to translate them using the local language. Cakepan Suci Al-Qur'an Salinan Ring Basa Bali by I Wayan Rupa Mengwi is one of the Qur’an translation into local languages, it is the first Balinese translation of the Qur’an, which prefer to translate them rather than to borrow them in translation. But it remains questions how the author vernacularized some “fixed theological terms and phrases” of the Arabic-Qur’an into Balinese and why did he chose to “translate” them rather than to “borrow” them in his translation work? The result showed that (1) it used terminological approach to vernacularize some fixed terms and phrases, (2) The special appeal of using Balinese words and phrases when translating selected Qur'anic words and phrases is to reflect typical local beliefs (Balinese), as well as to carry out da'wah through a socio-cultural approach. Even though, this pattern reflects the platform and strategy of international Ahmadiyya movement through the translation of the Qur'an, but this work is not connected formally under the organization program of Ahmadiyya.
Islamic Utopianism and Political Reality: Ali Hasjmy Reconsidered
Authors: Marhaban Marhaban
Published: August 2021

This article describes the political philosophy of Ali Hasjmy in formulating the ideal Islamic state. Hasjmy is an intellectual who has produced many works in the topics of politics, literature, and culture that are very useful for the progress and welfare of the Acehnese people and the Indonesian nation in general. The main source of this research is the work and writings of Hasjmy which are directly oriented to politics and the concept of the state. By using analytical content, this article shows several premises on Hasjmy’s utopian visions, which are; First, Muslims should not be anti-politics due to its important in achieving the benefit of the people; Second, the existence of a Islamic state as mandatory; Third, an Islamic state does not have to exist constitutionally but what must exist as Islamic values in a state; Fourth, the importance of obeying the leader; Fifth, every official or government element is responsible for exercising power.
The Discourse of The Qur'anic Metaphors: The Embryo of Theological Sects Disputes in Comprehending the Holy Qur'an
Authors: Atabik Ahmad
Published: August 2021

This article aims to examine problems related to metaphors (majāz) found in the Qur’an which were debated by scholars of Arabic literatures during the classic times. Majāz, opposed to ḥaqīqah, is a part of the Qur'an language styles which triggers theological debates among its supporters. This article used a qualitative approach, through library research, with a comprehensive and comparative analysis method among supporters of theological sects in understanding the problems of majāz in the Qur'an. The results of this study indicated that the debates on the issue raises three opinions in theological sects; Firstly, the Ẓahirī and Salafi sects reject the existence of majāz in the Qur'an. They refuse the interpretations of things that are not standardized in the text of the Qur'an. Secondly, the Mu'tazilah sect is exaggerated in accepting majāz and attacking other theological sects that are inconsistent with their interpretations of the text. Thirdly, the Ash’arī sect which is more moderate in confirming majāz. The starting point of their debates over majāz in the Qur'an is the difference in analysis and conclusions about the origin of language. The Ẓahirī and Salafi groups conclude that language is solely a gift from God, so there should be no change in terms of meaning. The Mu'tazilah believes that language is an invention and human power, that’s why a word may have more than one meaning. Whilst, the Ash’arī argues that language is indeed a human creativity, but it cannot be denied that God also plays a role in giving human abilities, so there are other possible meanings of a word
Bissu on Contesting Indigeneity with Islamic Puritanism in the Sacred Arena
Authors: Suheri Suheri , Adawiah Rabiatul , Sarjoon Razick Ahmed , Jubba Hasse
Published: August 2021

The presence of Islam in the Bugis Bone tribe not only changes people's beliefs but also traditional activities such as wedding rituals, mappalili (traditional ceremonies before planting rice), guarding arajang (heirlooms). The positions of Bissu, who is an indigenous leader, are very influential in the Bugis Bone community, but nowadays, its existence is discredited by the presence of Islamic hegemony. This research focuses on the transformation of the perseverance of Bissu in the leadership of traditional rituals in the Bugis Bone Tribe, before and after interacting with Islamic religious values. This study uses a descriptive method that describes the social conditions in the life of Bissu, by observation and interview techniques to the Bissu, Muslim leaders, and cultural actor. This study found the fact that the existence of Islam had a dominant influence on the social status of Bissu, which resulted in their role as leaders of traditional rituals being less respected by the community. The role of Bissu in daily activities has become less involved because it has been replaced by the values of religious puritanism. The government needs to educate the history of Bissu and the cultural traditions of Bone to the public and young generation.
Religious Exclusivity, Harmony and Moderatism amid Populism: A Study of Interreligious Communication in West Sumatra
Authors: Ulinnuha Roma
Published: August 2021

The religious moderatism is one of the constructive efforts in a diverse religious society. Plurality of beliefs as a whole part of the social landscape of Indonesian society is not yet fully understood and believed by the religious community. In the era of Populism, moreover in the dimension of religious practice, the case in West Sumatra shows horizontal disagreement or disharmony related to symbols and material aspects of religion such as the establishment of religious ritual places and supporting resource. This article confirms that communication serves vitally in addressing religious exclusivity. Resistance to religious entities is always found, as one of the markers of Populism, so that the symbolic interaction of religious leaders in undermining conflict and violence is indispensable. Religion pays particular attention to a social construct and practice with the main purpose of harmony and moderatism of religion. It serves effectively as a contribution of communicative actions, as conveyed by Jurgen Habermas, through reconciliation among religious people. The values of interaction between religious people are emphazised with the principle of agreement and respect as fellow citizens and human beings.
E. J. Lowe and Divine Causal Agency
Authors: Ganssle Gregory
Published: August 2021

In this essay, I apply Lowe’s theory of rational agency to God’s causal activity. I argue that Lowe’s account fits well the traditional notions that God acts in the world for reasons. In contrast to Lowe’s analysis of human causal agency, I argue that in the divine case, reasons for acting are not constituted by needs. They are constituted by God’s desires or plans. The fit between Lowe’s account of causal agency and the contours of divine causal agency motivate an argument in favor of Lowe’s theory. Any philosopher who is a theist ought to think Lowe’s account is likely to be true.
Menilai Pelestarian Lingkugan Pantai, Studi Literatur Dengan Pendekatan Circular Economy dan Choice Modelling
Authors: Arninda Devina , Gravitiani Evi
Published: August 2021

Perilaku pengunjung wisata yang kurang baik dapat menyebabkan kerusakan lingkungan pantai yang disebabkan karena penumpukan sampah-sampah. Disisi lain, minimnya kesadaran pengunjung dan masyarakat sekitar akan dampak yang dilakukan pada saat berkunjung ke pantai serta minimnya kesadaran dalam pelestarian lingkungan pantai. Tujuan dari penelitian ini adalah untuk mengidentifikasi penerapan circular economy serta untuk mengetahui penggunaan pendekatan choice modelling dalam menilai pelestarian lingkungan pantai. Metode yang digunakan adalah metode riset studi literatur dengan pendekatan deskriptif. Pengumpulan data sekunder dilakukan dengan mengumpulkan informasi dan data dari berbagai sumber melalui media elektronik berbasis web, jurnal yang relevan, hasil penelitian, dan sebagainya. Hasil penelitian ini yaitu menilai valuasi ekonomi pelestarian lingkungan pantai dapat dilakukan dengan konsep circular economy dan menggunakan metode atau pendekatan choice modelling untuk melihat alternatif pilihan yang dipilih oleh pengunjung pantai. AbstractThe behavior of tourist visitors who are not good can cause damage to the beach environment caused by the accumulation of garbage. On the other hand, the lack of awareness of visitors and the surrounding community about the impacts made when visiting the beach and the lack of awareness in preserving the coastal environment. The purpose of this study is to identify the application of the circular economy and to determine the use of the choice modeling approach in assessing the preservation of the coastal environment. The method used is a literature study research method with a descriptive approach. Secondary data collection is done by collecting information and data from various sources through web-based electronic media, relevant journals, research results, and so on. The results of this study are to assess the economic valuation of coastal environmental conservation can be done with the concept of a circular economy and using a method or approach choice modeling to see alternative choices chosen by beach visitors.
Analisis Potensi Genangan Tsunami dan Penentuan Jalur Evakuasi Berbasis Sistem Informasi Geografis di Desa Daruba Pantai – Kabupaten Pulau Morotai
Authors: Lessy Mohammad Ridwan , Wahiddin Nurhalis , Bemba Jefry , Aswan Marwis
Published: August 2021

Tsunami is one of the catastrophic events that threatened coastal areas in Morotai Island Regency. This is partly because the location of the regency is among several active faults. Therefore, the study aims to analyze the tsunami inundation area and determine a tsunami evacuation route in Daruba Pantai Village, South Morotai District. This study begins with the preparation of a digital elevation model and is compiled with other related maps to produce the tsunami inundation area at the study site. The study results show that a tsunami can hit 176.65 ha, with the disastrous and dangerous category being 5.02% and 0.66%. Meanwhile, specifically for the Daruba Pantai Village area with an area of 60.59 ha, the disastrous and dangerous categories are 10.72% and 1.30%, and the safe category is 36.61% and secure 23.07%. Furthermore, the preparation of the evacuation route is based on the scenario that residents from each zone of both the Neighborhood Unit (RT) and Community Unit (RW) are directed to follow the evacuation path to move towards the temporary shelter point and towards the safety zone.
Stepwise Markov model: a good method for forecasting mechanical ventilator crisis in COVID-19 pandemic
Authors: Olmos Pablo R. , Borzone Gisella R.
Published: August 2021

Objectives

One important variable influencing day-to-day decisions in COVID-19 pandemic has been an impending shortage of mechanical ventilators due to the large number of people that become infected with the virus due to its high contagiousness. We developed a stepwise Markov model (a) to make a short-term prediction of the number of patients on ventilator, and (b) to determine a possible date for a ventilator crisis.

Methods

Starting with the exponential curve of new cases in the previous 14 days, we calculated a Markov model every 5 days thereafter, resulting in a daily estimate of patients on ventilator for the following 25 days, which we compared with the daily number of devices in use to predict a date for ventilator crisis.

Results

During the modeled period, the observed and predicted Markov curves of patients on ventilator were very similar, a finding confirmed by both linear regression (r=0.984; p<0.0001) and the near coincidence with the identity line. Our model estimated ventilator shortage in Chile for June 1st, if the number of devices had remained stable. However, the crisis did not occur due to acquisition of new ventilators by the Ministry of Health.

Conclusions

In Chile as in many other countries experiencing several asynchronous local peaks of COVID-19, the stepwise Markov model could become a useful tool for predicting the date of mechanical ventilator crisis. We propose that our model could help health authorities to: (a) establish a better ventilator distribution strategy and (b) be ready to reinstate restrictions only when necessary so as not to paralyze the economy as much.
Study on the effect of microwave roasting pretreatment on nickel extraction from nickel-containing residue using sulfuric acid
Authors: Su Guang , Guo Zhanyong , Guo Ping , Li Fachuang , Zhang Qian , Zhou Huilin , Chang Jun
Published: August 2021

Various means have been proposed to solve problems such as high ash content and complex composition in the recycling of nickel-containing residue produced by battery manufacturing enterprises. Microwave roasting pretreatment is proposed to improve the nickel leaching rate from the residue. The effect of different experimental conditions like microwave roasting temperatures, roasting times, and microwave powers on the nickel leaching rate was studied. It was found that the effect of roasting temperature on the nickel leaching rate was more significant than those of roasting time and microwave power. Meanwhile, after microwave roasting pretreatment, the rate of nickel leaching from the residue could be increased by 20.43%, and weight of the material could also be reduced by more than 21%. After microwave roasting at 450°C, there was no significant change in the main phases of the material, but the surface of the particles exhibited an apparent stratified dissociation phenomenon. Response surface methodology (RSM) was used to optimize the parameters of microwave roasting with nickel leaching rate as the response value. The results showed that the nickel leaching rate could reach 93.11% for roasting at the microwave power of 962 W for 6.2 min under the temperature of 452°C.
A robust hazard ratio for general modeling of survival-times
Authors: Martínez-Camblor Pablo , MacKenzie Todd A. , O’Malley A. James
Published: August 2021

Hazard ratios (HR) associated with the well-known proportional hazard Cox regression models are routinely used for measuring the impact of one factor of interest on a time-to-event outcome. However, if the underlying real model does not fit with the theoretical requirements, the interpretation of those HRs is not clear. We propose a new index, gHR, which generalizes the HR beyond the underlying survival model. We consider the case in which the study factor is a binary variable and we are interested in both the unadjusted and adjusted effect of this factor on a time-to-event variable, potentially, observed in a right-censored scenario. We propose non-parametric estimations for unadjusted gHR and semi-parametric regression-induced techniques for the adjusted case. The behavior of those estimators is studied in both large and finite sample situations. Monte Carlo simulations reveal that both estimators provide good approximations of their respective inferential targets. Data from the Health and Lifestyle Study are used for studying the relationship of the tobacco use and the age of death and illustrate the practical application of the proposed technique. gHR is a promising index which can help facilitate better understanding of the association of one study factor on a time-dependent outcome.
On Police-Military Cooperation in Peacetime: Constitutional and Ethical-Political Memorandum
Authors: Teršek Andraž
Published: August 2021

Among the more important socio-political issues that have appeared on the surface of the public agenda is the question of cooperation between the police and the army. In the article, the author analyzes this issue both in general and in the specific context of the Republic of Slovenia. He explains that the Slovenian Government did not formally declare a “state of emergency,” although the Slovenian Constitution allows it, but officially declared an epidemic and used a special provision in the Defense Act that allows the Slovenian Army to take action in so-called “exceptional” social circumstances and establish police-military cooperation on the ground. The author explains the constitutional dimensions of such cooperation and its ethico-political perspective.
Dynamics of a rotating hollow FGM beam in the temperature field
Authors: Wang Yaolun , Yang Chaofan , Zhang Yongxin , Dong Shipeng , Li Liang
Published: August 2021

Dynamic responses and vibration characteristics of a rotating functionally graded material (FGM) beam with a hollow circular cross-section in the temperature field are investigated in this paper. The material properties of the FGM beam are assumed to be temperature-dependent and vary along the thickness direction of the beam. By considering the rigid-flexible coupling effect, the geometrically nonlinear dynamic equations of a hub–FGM beam system are derived by employing the assumed modes method and Lagrange’s equations. With the high-order coupling dynamic model, the effect of temperature variations under two different laws of motion is discussed, and the free vibration of the system is studied based on the first-order approximate coupling model. This research can provide ideas for the design of space thermal protection mechanisms.
Characteristic polynomial, determinant and inverse of a Fibonacci-Sylvester-Kac matrix
Authors: Jiang Zhaolin , Zheng Yanpeng , Li Tianzi
Published: August 2021

In this paper, we consider a new Sylvester-Kac matrix, i.e., Fibonacci-Sylvester-Kac matrix. We discuss the eigenvalues, eigenvectors and characteristic polynomial of this matrix in two categories based on whether the Fibonacci-Sylvester-Kac matrix order is odd or even. Besides, we also give the explicit formulas for its determinant and inverse.
Internethasználat és szubjektív életminőség vizsgálata az idős generációban
Authors: Ercsey Ida
Published: August 2021

A TANULMÁNY CÉLJA

Napjainkban az internet egyre fontosabb szerepet tölt be az idős generáció életében. A népesség öregedésével párhuzamosan előtérbe került az idősebb korosztály jólléte és életminősége, valamint elégedettségi szintjének felmérése. Nemzetközi kutatási eredmények alapján az időskorúak internetezési és szabadidős tevékenységei között pozitív irányú kapcsolat mutatható ki. A tanulmány célja az idős generáció internet használatának és social media aktivitásának feltérképezése, és a szubjektív életminőségre gyakorolt hatásának vizsgálata.

ALKALMAZOTT MÓDSZERTAN

Az első kutatási kérdés vizsgálatához szekunder forrást használtunk, az IKT és a szubjektív életminőségi adatok másodelemzésével. A második kutatási kérdésben megfogalmazott összefüggés feltárásához pilotkutatást végeztünk. Az adatgyűjtést 2019-ben, online megkérdezési technikával bonyolítottuk le, a Baby Boom generációhoz tartozó alanyok körében. A minta nagysága 105 fő, amelyben 56 nő (53%) és 49 férfi (46%) adott értékelhető válaszokat. Az adatok elemzése statisztikai módszerek alkalmazásával történt.

LEGFONTOSABB EREDMÉNYEK

Megállapítható, hogy a vizsgált európai országokban, az idős generációban az internet aktivitás és az élettel való elégedettség szintje között pozitív lineáris kapcsolat áll fenn, amelynek a mértéke erős. Az eredmények tükrében kijelenthető, hogy a magyar Baby Boomerek életminőségének megítélése és a közösségi médiahasználat mindennapi életükre gyakorolt hatása között pozitív, erős szignifikáns kapcsolat áll fenn.

GYAKORLATI JAVASLATOK

Az internet és a social media használatára vonatkozó mérések igazolják a mennyiségi változást. Azonban látni kell, hogy a különböző mérési eredmények között eltérések vannak, ami a méréshez használt gyakorisági szintek sajátosságaiból erednek. További gondot jelent a minőségi változások generációs megközelítésben történő vizsgálata, ha a minőségi adatok csak korcsoportos bontásban állnak rendelkezésre, vagy más generációs felosztást alkalmaznak. A kutatási téma mélyebb elemzéséhez egyrészt fel kell tárni az internet és social media aktivitást befolyásoló háttérváltozókat, másrészt az aktív részvételt elősegítő egyéni és társadalmi feladatokat.

 

Köszönetnyilvánítás: A publikáció a Széchenyi István Egyetem által az EFOP- 3.6.1-16-2016-00017 „Nemzetköziesítés, oktatói, kutatói és hallgatói utánpótlás megteremtése, a tudás és technológiai transzfer fejlesztése, mint az intelligens szakosodás eszközei a Széchenyi István Egyetemen” című uniós projekt keretében készült.
A digitalizáció és a vevőkapcsolatok kölcsönhatása – egy szerződéses gyártó példáján keresztül
Authors: Szalkai Zsuzsanna , Mandják Tibor , Simon Judit , Hlédik Erika , Neumann-Bódi Edit
Published: August 2021

A TANULMÁNY CÉLJA

Általánosan elfogadott, hogy a digitalizálás befolyásolja az üzleti kapcsolatokat, következésképpen a vevőkapcsolatokat is. Kevésbé ismert azonban, hogy hogyan történik ez a befolyás. Továbbá, vajon a vevőkapcsolatok befolyásolják-e a digitalizációt? Tanulmányunk célja, hogy a szerződéses gyártás területén feltárja a digitalizálás és a vevőkapcsolatok közötti összefüggéseket. Feltáró kutatásunkban két kutatási kérdésre keressük a választ: 1) Milyen hatással van a digitalizáció a vevőkapcsolatokra? 2) Hogyan befolyásolják a vevőkapcsolatok a digitalizációt?

ALKALMAZOTT MÓDSZERTAN

Kutatásunk keretében esettanulmányt készítettünk és elemeztünk a Videoton Electronic Assembly Services (VEAS) vállalatról és vevőkapcsolatairól. A digitalizáció és a vevőkapcsolatok kölcsönhatását az Industrial Marketing and Purchasing (IMP) Group megközelítésével, az üzleti kapcsolatok funkcióin keresztül elemeztük. Az IMP elmélet szerint az üzleti kapcsolatok funkciói három szinten, azaz vállalati, kapcsolati és hálózati szinten jelentkeznek.

LEGFONTOSABB EREDMÉNYEK

A vevőkapcsolatokat, az üzleti kapcsolatok funkciói szerint vizsgálva azt találtuk, hogy a vállalati szinten tulajdonképpen az egyes vállalati tevékenységeket szükséges digitalizálni (pl. HR, pénzügy), illetve, hogy a HR egyik fontos feladata a munkaerő „digitális átállítása”. Az üzleti kapcsolat szintjén a vevői elvárásokra adandó rugalmas válaszok különböző szintű és típusú digitális megoldásokat igényelnek. A hálózati szinten, a digitalizáció meglévő szintje az új vevőkapcsolatok kialakításának lehetőségét hordozza magában. Megállapítható, hogy a vevőkapcsolatok és a digitalizáció egyfajta „húzd meg, ereszd meg” szituációban vannak, azaz a vevői igények sokfélesége, a vállalat oldaláról pedig az ezeknek való megfelelés lehetősége jelenti a digitális megoldások kulcskérdését.

GYAKORLATI JAVASLATOK

Menedzseri szempontból kutatásunk fontos tanulsága, hogy amennyiben a digitális átállás során, a menedzserek tudatában vannak és odafigyelnek a digitalizáció és a vevőkapcsolatok kölcsönhatásaira, jobban össze tudják hangolni a vállalati célokat a vevői elvárásokkal a megfelelő digitális megoldásokat alkalmazva. Ez azt jelenti, hogy a menedzsereknek tekintettel kell lennie a digitalizáció különböző típusaira (Pagani & PardO 2017) és a vevőkapcsolatok különböző hatásaira, vállalati, kapcsolat és hálózati szinten egyaránt.
Borderline Personality Traits and Romantic Relationship Dissolution
Authors: Tan Kenneth , Ingram Samantha H. , Lau Laura A. S. L. , South Susan C.
Published: August 2021

Many studies have found that borderline personality disorder (BPD) is associated with romantic relationship instability, with relationship dissolution being a recurring theme. Scant research, however, has examined the dissolution strategies and post-breakup outcomes for individuals with elevated levels of borderline traits. Findings from two studies revealed that there was an association between BPD criteria and tendency to employ less adaptive dissolution strategies when terminating a relationship. Furthermore, elevated levels of BPD traits were associated with less self-concept clarity and more unwanted pursuit of ex-partners. These findings both provide insight into how individuals with BPD traits experience relationship dissolution and suggest possible factors underlying the unstable relationship processes typically associated with borderline traits.
Exploring the Alternative Model for Personality Disorders Using SCORS-G Ratings on Thematic Apperception Test Narratives
Authors: Ruchensky Jared R. , Dowgwillo Emily A. , Kelley Shannon E. , Massey Christina , Slavin-Mulford Jenelle , Richardson Laura A. , Blais Mark A. , Stein Michelle B
Published: August 2021

The Alternative Model for Personality Disorders (AMPD) in Section III of the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5; American Psychiatric Association, 2013) conceptualizes personality pathology as a combination of impairment (Criterion A) and traits (Criterion B). One measure used to develop Criterion A was the Social Cognition and Object Relations Scale - Global Rating Method (SCORS-G), which is a multidimensional, object-relational clinician-rated measure of personality functioning. Although there are conceptual links between the AMPD and SCORS-G dimensions, there exists no research examining the relationship. To address this, we examined associations between the SCORS-G dimensions and measures of the AMPD constructs in a large, archival dataset of outpatients and inpatients. More pathological scores on SCORS-G dimensions reflecting self- and interpersonal functioning were associated with greater pathological traits and impairment. Overall, results support further investigation into SCORS-G as a useful measure in AMPD research and assessment.
How Much Carbon Do the Soils of Papua New Guinea Forests Contain?
Authors: Sam N. , Nimiago P. , Gaima T. , Gamung M. , Moripi L. , Matsuura Y. , Sumareke A. , Walters J. , Haraguchi M. , Abe H. , McIntosh P. D.
Published: August 2021

Preliminary assessment of carbon in forest soils of Papua New Guinea (PNG) was done for 53 sites. Simple soil-landscape model was constructed to explain how soil carbon relates to landscape position and landform processes. Despite limitations of the soil survey, sufficient data have been obtained to indicate that the amount of carbon in forest soils surveyed so far is related primarily to their carbon-complexing capacity (CCC) which, in turn, depends on their geological parent material and parent rock. Soils were grouped into six categories based on their carbon content. The six categories ranged from very low 0–50 t/ha to extremely high 601–1,000 t/ha. Amalgamating the areas of mapped geological units on the basis of their likely CCC and their median carbon content has enabled the total carbon content of all forest soils in PNG to be estimated as 7,727 × 106 t. This figure is approximate and will be modified as more results are obtained and more sophisticated GIS-based landscape analysis is undertaken. The total carbon in forest biomass, as measured in this National Inventory and estimated for roots, is 4,006 × 106 t. Thus, the total carbon in PNG’s forests at present is estimated to be 11,733 × 106 t, with 66% stored in the soil and 34% in the biomass. The high proportion of ecosystem carbon held in the soil emphasises the importance of implementing soil conservation measures to maintain the total carbon resource in PNG’s forests.
The ice factory of Hudson Bay
Authors: Bruneau Jennifer , Babb David , Chan Wayne , Kirillov Sergei , Ehn Jens , Hanesiak John , Barber David G.
Published: August 2021

Within the dynamic seasonal ice cover of Hudson Bay, the Kivalliq Polynya is a large latent heat polynya that forms throughout winter in the northwest as a result of strong northwesterly offshore surface winds. Polynyas are known to be physically, biologically, and geochemically important and contribute to the regional ice mass balance; however, the Kivalliq Polynya has yet to be characterized in terms of spatiotemporal variability and ice production. Using a thin ice algorithm applied to the 16-year record of daily AMSR-E and AMSR-2 passive microwave observations, we examine the interannual variability in the spatial and temporal characteristics of the polynya throughout winter (December–April) over the period 2002–2019. Our study reveals that the polynya is present in some form almost every day but that its daily area is highly variable. On average, 182 km3 of new ice is produced in the Kivalliq Polynya during winter, or approximately 20% of the end of winter ice volume in Hudson Bay. Daily ice production is found to be significantly correlated with the daily polynya area, though large, episodic events can increase annual cumulative ice production during a year of otherwise small polynyas. Annual cumulative ice production is also found to be significantly correlated with seasonally averaged offshore wind speeds, which explain 47.3% of the variance in winter ice production and drive a 46 km3 increase in ice production for every 1.0 m s–1 increase in offshore winds. Ultimately, the highly variable yet persistent Kivalliq Polynya is shown to be driven by offshore winds and significantly contributes to the regional ice mass balance.
La investigación sobre ciudad y comunicación: un campo abierto
Authors: Clua Anna
Published: August 2021

El presente texto apuesta por una visión interdisciplinar y comprensiva de las relaciones entre ciudad y comunicación. Se hace necesario interpretarlo, por ello, desde una mirada abierta y colaborativa para con las distintas disciplinas académicas que concurren a definir tales vínculos, sus prácticas y sus resultados.La autora señala cuáles pueden ser los diferentes marcos conceptuales de esta relación trazando un primer mapa orientativo desde el que emerge la Comunicación y en el que se caracteriza su permeabilidad.Así, se ofrece una reflexión sobre la configuarción epistemológica del campo, que permite ubicar las líneas de investigación que abrieron camino y, en un segundo apartado, se presentan diez conceptos relevantes que se han fabricado o reconvertido desde la academia iberoamericana desde finales del siglo veinte hasta inicios del veintiuno.
Properties of activated carbon regulated by rapid cooling treatment after pyrolysis
Authors: Wang Bing , Chen Huiyuan , Li Yonggang , Si Hongyu , Wei Haomin , Guo Zupeng , Gu Zhijie , Hou Dong
Published: August 2021

Effects of rapid cooling following pyrolysis were studied relative to the properties of activated carbon using different biomass as the raw materials. Coconut shell-based activated carbon (CSAC), bamboo-based activated carbon (BAC), and straw-based activated carbon (WSAC) were activated via high temperature and subsequently rapidly cooled to below minus 150 °C. The results showed that rapid cooling effectively increased the specific surface area, pore volume, and yield of activated carbons. Compared to natural cooling, rapid cooling increased the specific surface area of CSAC from 1076 m2/g to 1484 m2/g, increased the pore volume from 1.46 mL/g to 1.57 mL/g, decreased the average pore size from 2.25 nm to 2.13 nm, and increased the yield from 27.1% to 31.5%. The variation of the properties of activated carbon after rapid cooling using different raw materials and process conditions were studied using orthogonal experiments.