bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimal rehabilitation planning for aged water distribution mains considering cascading failures of interdependent infrastructure systems
Authors: Minaei Amin , Hajibabaei Mohsen , Savic Dragan , Creaco Enrico , Sitzenfrei Robert
Published: August 2023

Water distribution networks (WDNs) with other infrastructures constitute a complex and interdependent multi-utility system. Considering interdependencies between WDNs and other urban infrastructures, this work proposes WDN intervention planning using a dynamic multi-utility approach to tackle the challenges of pressure deficits and cascading failures by the decoupling of different infrastructure systems. For this purpose, the study develops reliability indices representing the hydraulic and decoupled statuses of WDNs with neighbor infrastructures; the hydraulic reliability represents the robustness of the network against the water pressure deficit, and decoupling reliability represents the extent to which WDN elements are decoupled from other assets elements. A multi-objective optimization algorithm is employed to develop rehabilitation strategies by introducing three approaches for WDN upgrade following a phased design and construction method. Evaluating intervention plans based on construction cost, reliability and cascade effects shows that, under budget limitation conditions, decoupling a WDN could significantly save the cascade cost such that 1% improvement in the decoupling reliability brings about 157.42 billion Rials cascade cost saving to asset managers. On the other hand, the decoupled network is weak against hydraulic reliability, which could make it by far less resilient network than the coupled network with around 75% hydraulic reliability difference.
Electrochemical degradation of ciprofloxacin through a DoE-driven optimization in a filter-press type reactor under batch recirculation mode
Authors: Peralta-Reyes Ever , Regalado-Méndez Alejandro , Chimeo-Sánchez Alexis A. , Robles-Gómez Edson E. , Natividad Reyna
Published: August 2023

In this work, the electrochemical degradation of ciprofloxacin (CIP) was studied in a filter-press-type reactor without division in a batch recirculation manner. For this purpose, two boron-doped diamond (BDD) electrodes (as cathode and anode) were employed. Also, the optimal operating conditions were found by response surface methodology (RSM) following a central composite face-centered design with three factors, namely current intensity (i), initial pH (pH0), and initial concentration ([C]0) with two responses, namely remotion efficiency (η) and operating cost. Optimal operating conditions were i = 3 A, pH0 = 8.49, and [C]0 = 33.26 mg L−1 within an electrolysis time of 5 h, leading to a maximum removal efficiency of 93.49% with a minimum operating cost of $0.013 USD L−1. Also, a TOC analysis shows an 80% of mineralization extent with an energy consumption of 5.11 kWh g−1 TOC. Furthermore, the CIP degradation progress was followed by mass spectrometry (LC/MS) and a degradation pathway is proposed.
Machiavelli’s The Prince: How to Refute Virtue Ethics in Three Steps
Authors: Stoškus Mindaugas
Published: August 2023

This article examines Niccolò Machiavelli’s account of virtues in his famous work The Prince. The Italian philosopher uses three different stages or steps of argumentation. All these steps are analyzed in this paper. It is argued that in each step, Machiavelli makes partial conclusions which are neglected in the next step. In the last step, Machiavelli concludes that not only some virtues lead to failure, but all virtues are harmful to a successful leader. Instead of an honest and just way of acting, Machiavelli proposes the slyness of a fox – the most effective and successful way of acting. Cicero’s De Officiis effectively helps to understand the radicality of Machiavelli’s account of virtues. Cicero’s work enables one to explain all the central metaphors and analogies used in Machiavelli’s The Prince. Comparing Cicero’s and Machiavelli’s radically different accounts of the same virtues and vices shows that Machiavelli changed the traditional understanding of virtues, thus refuting traditional moral and political philosophy.
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Received: 05/01/2023. Reviewed: 20/02/2023. Accepted: 30/03/2023.
Katastrofa ekologiczna – od prognozy do rzeczywistości. Globalny problem refleksji filozoficznej w polskim lustrze
Authors: Ciążela Helena
Published: August 2023

Żyjemy w czasach cywilizacyjnego przełomu. Ludzka aktywność skierowana na podporządkowanie sobie środowiska naturalnego doprowadziła do jego dewastacji, niosącej katastrofalne skutki dla dalszego trwania ludzkości. Naukowe prognozy, publikowane od października 2018 roku, ukazują realne zagrożenie globalną katastrofą klimatyczną w najbliższych latach jako oczywisty scenariusz w przypadku niepodjęcia skutecznej próby przeciwdziałania zagrożeniu. Powstrzymanie katastrofy staje się coraz trudniejszym zadaniem dla społeczności ludzi obecnie żyjących. Artykuł koncentruje się na zagadnieniu reakcji na wspomniany kryzys w dyskursie filozoficznym. W świetle przeprowadzonej analizy wiele wskazuje na to, że w filozofii współczesnej zagrożenie globalną katastrofą nie wywołuje wyraźnej reakcji jej przedstawicieli. Przeprowadzona analiza zmierza do ukazania przyczyn tego stanu rzeczy.
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Zgłoszono: 24/11/2022. Zrecenzowano: 27/02/2023. Zaakceptowano do publikacji: 24/04/2023.
Sprawozdanie z działalności naukowej Katedry Filozofii Przyrody w Instytucie Filozofii UKSW w Warszawie w latach 2019-2022
Authors: Świeżyński Adam
Published: August 2023

1 października 2019 roku dotychczasowa Sekcja Filozofii Przyrody, składająca się z Katedry Filozofii Przyrody, Katedry Filozofii Przyrodoznawstwa oraz Katedry Metodologii Nauk Systemowo-Informacyjnych, została przekształcona w Katedrę Filozofii Przyrody (KFP). W okresie od utworzenia Katedry Filozofii Przyrody do końca 2022 roku aktywność naukowa jej pracowników obejmowała: realizację indywidualnych i wspólnych programów badawczych i związaną z nimi działalność publikacyjną; udział w konferencjach naukowych; spotkania w celu omówienia bieżących spraw organizacyjnych; spotkania tematyczne, poświęcone prezentacji realizowanej problematyki badawczej oraz dyskusji nad prezentowanymi treściami.
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Zgłoszono: 20/02/2023. Zrecenzowano: 28/03/2023. Zaakceptowano do publikacji: 30/03/2023.
Mentira, velocidade e excesso
Authors: Mendonça Katia Marly Leite , Serra Netto Helio Figueiredo da
Published: August 2023

Este artigo discute a relação entre a mentira, a verdade factual e a tecnologia. O processo da chamada “mentira organizada”, iniciado no século XX, atualmente assume hoje proporções apocalípticas e foi abordado por Gunther Anders, Paul Virilio e Hannah Arendt, autores cujas reflexões sobre o tema são aqui retomadas e atualizadas em relação ao cenário contemporâneo. São discutidos a relação entre verdade factual e mentira e os efeitos que sobre ela têm a velocidade e o excesso de informações, de imagens e de dados, assim como a visão apocalíptica que Anders, Arendt e Virilio construíram acerca desse processo.
Da questão técnica à ação comunicativa
Authors: Castro Jetur Lima de , Almeida Júnior Oswaldo Francisco de
Published: August 2023

Discute a ação comunicativa como meio para reconstruir o entendimento da mediação da informação em relação à discussão da ideologia da técnica. Como método, apresenta uma pesquisa qualitativa baseada em uma pesquisa bibliográfica.  A mediação da informação é entendida como um fenômeno emancipatório, analisado da base técnica ao saber-fazer, com uma perspectiva crítica da teoria da ação comunicativa. O estudo confirmou elementos para uma compreensão dialógica entre a técnica e a ação comunicativa, o que pode permitir uma orientação com base em pretensões de validade argumentativa para mediação de tarefas práticas. Considerar a crítica dos instrumentos da ideologia da técnica, para que os usuários não sejam condicionados a normas ou regras, sem uma representação da realidade social, onde as ideias estão dissociadas dos processos sociais.
criticidade na construção de narrativas emancipatórias e antimonumentos de memória
Authors: Arruda Anderson Matheus Alves , Viana Anna Raquel de Lemos , Lima Paulo Ricardo Silva , Miranda Májory Karoline Fernandes de Oliveira
Published: August 2023

Teorias científicas constroem um conjunto de argumentos para compreender fenômenos no mundo, compreendendo ações e elaborando prognósticos com base em conexões significativas. A partir do movimento de reflexão com epistemologias que questionam o projeto de ciência ocidental hegemônica com o objetivo de pensar o sentido da crítica na construção de antimonumentos da memória. A pesquisa será configurada da seguinte forma: quanto aos objetivos de caráter exploratório, utilizando como suporte teórico a investigação bibliográfica; quanto à natureza dos dados, a pesquisa configura-se como qualitativa. O trabalho se apresenta a partir de um enfoque epistemológico e posicionado, refletindo a articulação entre a ciência/academia, a produção do conhecimento e a prática política. Tensiona os conceitos principais acerca de antimonumentos, teoria crítica e memória, além da contextualização de caso. Existe uma relação entre a racionalidade, a criticidade e a construção de antimonumentos de memória para possibilitar e potencializar uma narrativa emancipatória.
Risk Prediction Models and Novel Prognostic Factors for Heart Failure with
Preserved Ejection Fraction: A Systematic and Comprehensive Review
Authors: Lin Shanshan , Yang Zhihua , Liu Yangxi , Bi Yingfei , Liu Yu , Zhang Zeyu , Zhang Xuan , Jia Zhuangzhuang , Wang Xianliang , Mao Jingyuan
Published: August 2023

Background:

Patients with heart failure with preserved ejection fraction (HFpEF) have large individual
differences, unclear risk stratification, and imperfect treatment plans. Risk prediction models are helpful for the dynamic
assessment of patients' prognostic risk and early intensive therapy of high-risk patients. The purpose of this
study is to systematically summarize the existing risk prediction models and novel prognostic factors for HFpEF, to
provide a reference for the construction of convenient and efficient HFpEF risk prediction models.

Methods:

Studies on risk prediction models and prognostic factors for HFpEF were systematically searched in
relevant databases including PubMed and Embase. The retrieval time was from inception to February 1, 2023.
The Quality in Prognosis Studies (QUIPS) tool was used to assess the risk of bias in included studies. The predictive
value of risk prediction models for end outcomes was evaluated by sensitivity, specificity, the area under
the curve, C-statistic, C-index, etc. In the literature screening process, potential novel prognostic factors
with high value were explored.

Results:

A total of 21 eligible HFpEF risk prediction models and 22 relevant studies were included. Except for
2 studies with a high risk of bias and 2 studies with a moderate risk of bias, other studies that proposed risk prediction
models had a low risk of bias overall. Potential novel prognostic factors for HFpEF were classified and
described in terms of demographic characteristics (age, sex, and race), lifestyle (physical activity, body mass
index, weight change, and smoking history), laboratory tests (biomarkers), physical inspection (blood pressure,
electrocardiogram, imaging examination), and comorbidities.

Conclusion:

It is of great significance to explore the potential novel prognostic factors of HFpEF and build a
more convenient and efficient risk prediction model for improving the overall prognosis of patients. This
review can provide a substantial reference for further research.
Advancement in Polymer-based Carrier for DNA Vaccine
Authors: Goyal Priyanshi , Malviya Rishabha
Published: August 2023

A novel strategy that has the potential to solve the drawbacks of the present conventional vaccines is
the development of DNA vaccines. DNA vaccines offer a versatile and adaptable platform for treating a wide
variety of diseases, as immunization targets may be easily adjusted by altering the gene sequences encoded in
the plasmid DNA delivered. Due to their ability to elicit both humoral and cellular immune responses, their stability,
and the ease with which they may be produced, plasmid DNA vaccines are quickly becoming the vaccine
of choice, they are frequently safer than conventional vaccinations. Despite the highly encouraging outcomes of
ongoing clinical trials, these vaccines' immunogenicity is compromised by a few factors. The use of various
vaccine delivery techniques, the use of various polymer-based carriers, and the use of adjuvants are some of the
several approaches that might be examined to better the immunogenicity of DNA vaccines made from plasmids.
These advancements taken together might allow plasmid DNA vaccines to be successfully used in clinical
settings.
Research Progress in Nanopharmaceuticals with Different Delivery Routes in
the Antivirus Field
Authors: Shi Yenong , He Dongqiong , Zhang Xianwei , Yuan Mingqing , Liu Xu
Published: August 2023

Human health is significantly threatened by infectious diseases caused by viral infection. Over the
years, there have been numerous virus epidemics worldwide, causing millions of deaths. Traditional antiviral
medications have many problems, including poor solubility and antiviral resistance. Additionally, because different
drug delivery methods have different biological barriers to overcome, the drug’s bioavailability will be
significantly affected. Therefore, it is essential that researchers create more effective antiviral drugs. To serve
as a guide for the future development of nanosized antiviral drugs with stronger and more precise therapeutic effects,
research has been performed on nanotechnology in the field of antiviral therapy. This review summarizes
the recent developments in antiviral nanopharmaceuticals with different delivery routes. Research on 7 typical
viruses, including COVID-19, has been included in this review. After being loaded into nanoparticles, antiviral
drugs can be delivered through several drug modes of delivery, overcoming biological barriers. Moreover,
some nanoparticles themselves have the ability to combat infections, so they can be used in conjunction with antiviral
medication. The use of nanoparticle medications through various routes of administration can result in
their unique benefits. They can be capable of overcoming its limitations as well as retaining the advantages of
this method of delivery. This will motivate researchers to conducted a new investigation on nanoparticle
medicines from the standpoint of the route of administration in order to increase the practicability of antiviral
medications.
Linear Regression
Authors: Wang Zhiyuan , Ameenuddin Irfan Sayed , Teoh Christopher , Hriday Bhoyar Priyanka
Published: August 2023

nbsp;In this chapter, we delve into linear regression, a fundamental machine learning
algorithm for predicting numerical values. While maintaining a concise overview of the
mathematical theories, we prioritize an accessible approach by focusing on a concrete
numerical example with a small dataset for predicting house sale prices. Through a step-by.step walkthrough, we illustrate the inner workings of linear regression and demonstrate its
practical implementation. Additionally, we offer sample codes and a comparison with the linear
regression model from scikit-learn to reinforce understanding. Upon completing this chapter,
readers will gain a comprehensive understanding of linear regression's inner workings and its
relationship to algorithm implementation and performance, and be better prepared to apply it
to real-world projects.
Regularization
Authors: Wang Zhiyuan , Ameenuddin Irfan Sayed , Teoh Christopher , Hriday Bhoyar Priyanka
Published: August 2023

This chapter delves into L1 and L2 regularization techniques within the context of
linear regression, focusing on minimizing overfitting risks while maintaining a concise
presentation of mathematical theories. We explore these techniques through a concrete
numerical example with a small dataset for predicting house sale prices, providing a step-by-step walkthrough of the process. To further enhance comprehension, we supply sample codes
and draw comparisons with the Lasso and Ridge models implemented in the scikit-learn library.
By the end of this chapter, readers will acquire a well-rounded understanding of L1 and L2
regularization in the context of linear regression, their implications on model implementation
and performance, and be equipped with the knowledge to apply these methods in practical use.
Logistic Regression
Authors: Wang Zhiyuan , Ameenuddin Irfan Sayed , Teoh Christopher , Hriday Bhoyar Priyanka
Published: August 2023

This chapter delves into logistic regression, a widely used machine learning
algorithm for classification tasks, with a focus on maintaining accessibility by minimizing
abstract mathematical concepts. We present a concrete numerical example employing a small
dataset to predict the ease of selling houses in the property market, guiding readers through
each step of the process. Additionally, we supply sample codes and draw comparisons with the
logistic regression model available in the scikit-learn library. Upon completion of this chapter,
readers will have gained a comprehensive understanding of the inner workings of logistic
regression, its relationship to algorithm implementation and performance, and the knowledge
necessary to apply it to practical applications.
Support Vector Machine
Authors: Wang Zhiyuan , Ameenuddin Irfan Sayed , Teoh Christopher , Hriday Bhoyar Priyanka
Published: August 2023

In this chapter, we investigate Support Vector Machines (SVM) for both linearly
separable and linearly non-separable cases, emphasizing accessibility by minimizing abstract
mathematical theories. We present concrete numerical examples with small datasets and
provide a step-by-step walkthrough, illustrating the inner workings of SVM. Additionally, we
offer sample codes and comparisons with the SVM model available in the scikit-learn library.
Upon completing this chapter, readers will gain a comprehensive understanding of SVM's
mechanics, and its connection to the implementation and performance of the algorithm, and be
well-prepared to apply it in their practical applications.
A Carta de Património Arqueológico do PDM do Porto Possibilidades e Limites de uma Cartografia da Memória e Mutabilidade da Cidade. Parte I – Centro Histórico E Áreas Adjacentes
Authors: Gomes Sérgio , Osório Isabel , Sousa Laura , Stockler Carla , Ribeiro Manuela , Almeida António
Published: August 2023

This text aims to present the Archaeological Heritage Charter of the current Municipal Master Plan of Porto (MMPP), discussing both its limits and possibilities. To this end, we will focus on reviewing an earlier version of the charter and explain how the new safeguarded archaeological areas were defi ned. By looking at the Porto 2030 Strategy defi ned at the MMPP, in which different city models/policies were discussed such as a smart city or green city, the importance of considering the concept of the deep city is emphasized. That is, a city model that values the mutability of spaces and their temporal dimension as an intrinsic characteristic of urban spaces and, therefore, understands the archaeological remains as resources to promote the quality of the urban spaces, the well-being of the community, and the attractiveness of the territory. It is from this perspective that the remains and other traces supporting the archaeological safeguarded areas are briefl y presented, demonstrating their multi-temporal character and highlighting their scientifi c, heritage and urban value
Os Dolia da Antiguidade Tardia do Castro de Guifões (Matosinhos)
Authors: Arezes Andreia
Published: August 2023

This text aims to present a group of ceramics belonging to large containers for conservation or storage, conventionally known as dolia. Recovered during the fi rst excavation campaign carried out under a research project in Archaeology (PIPA), named GUIFARQ - Guifões Archaeological Research Project, they come from four distinct stratigraphic units framed in the Late Antiquity. The defi ning features of the multiple fragments exhumed, belonging to different vessels, and the contextual relationship attested with other materials, with well-defi ned chronologies, will be explored to understand aspects related to the dynamics of occupation of the Castro in that period. In parallel, interpretative proposals will also be put forward for the documented occurrences in the light of the new contextualized data and the comparison with other similar material previously recovered.
Jogos de Tabuleiro, em Contextos Islâmicos (Séculos VIII-XIII), do Castelo de Silves (Algarve)
Authors: Gomes Rosa Varela , Gomes Mário Varela
Published: August 2023

Despite prescriptions against gambling, the Islamic contexts of al-Andalus have shown not a few testimonies of the so-called board games (tāb), which oppose two people. Also in the Castle of Silves, a place occupied at least since Late Antiquity, with periods of cultural fl ourishing between the 8th and the mid-13th century, emerged, in the Muslim levels excavated directed by one of us (RVG), game boards, in portable stone supports, but also fi xed, engraved on fl oors. Discoid game marks, made in stone, ceramic or bone, with different dimensions, as other game pieces made in those same materials were also exhumed, which would have been part of board games. Although numerous game boards are known, it is not uncommon for those, from the Middle Ages or earlier, to which a safe chronology can be attributed, which does not occur with the examples from Castelo de Silves, which come from strata and precise locations. Playing has pedagogics, competitive, inter-active, strategic, ethics, creative, ludic, emotional or cognitive, but also oracular, even ritual implications, and are a cultural identifi er, given it handles with symbols, and can often constitute a metaphor for aspects of human life.
O Castelo de Coina-A-Velha Notas a Propósito de Duas Plantas Antigas
Authors: Fernandes Isabel Cristina F. , Barroca Mário Jorge
Published: August 2023

Taking as a pretext the publication of two graphic documents concerning the forgotten Hisn of Coina-a-Velha (S. Lourenço de Azeitão), the authors synthesize the available information about this medieval fortifi cation, in its Islamic and Christian course. Although the testimonies of occupation are more remote, the architectural structure reveals a castle built by Muslim forces, around the 9th or 10th century, which survived after being incorporated into the space of the Christian kingdom. The last military events occurred in 1184 and 1191, both with harsh consequences on the fortifi cation, which must have been defi nitively abandoned in the early 13th century.
Electrocardiography-documented sudden cardiac death due to ventricular fibrillation in a young cat without echocardiographic evidence of severe structural heart disease
Authors: Hellemans A. , Skotarek M. , Mampaey G. , Smets P.
Published: August 2023

An asymptomatic three-year-old male European Domestic Shorthair cat was referred for an irregular heart auscultation. Apart from localized concentric left ventricular septal hypertrophy, echocardiography was normal. However, ventricular ectopy was observed on electrocardiography (ECG) during echocardiography. The cat died suddenly 55 minutes after the start of the subsequent Holter ECG. Analysis showed sinus rhythm interrupted by 192 single ventricular premature complexes, a ventricular couplet, two incidents of ventricular bigeminy and two runs of ventricular tachycardia (VT). The last run of VT deteriorated into ventricular fibrillation (VF) and ultimately cardiac arrest. Structural heart disease including mild feline hypertrophic cardiomyopathy or myocarditis, primary arrhythmia (channelopathy) or extra-cardiac disease were maintained as differential diagnosis. Unfortunately, a necropsy was declined leaving no definitive diagnosis available. In this case report, it is shown that VF due to ventricular ectopy is a possible cause of SCD even in asymptomatic cats with only mild echocardiographic signs of structural heart disease.
Oxide desorption process from InSb surface under Sb flux
Authors: Sukhanov M. A.  , Bakarov A. K.  , Zhuravlev K.S.
Published: August 2023

In this work, the process of oxide removal from the InSb (001) surface was studied in situ by high-energy electron diffraction in vacuum and under an antimony flux. The dependence of the oxide thickness on the annealing temperature was obtained. It has been found that the antimony flux slows down the process of oxide removal due to the oxide formation reaction. The oxide removal process was described by a system of kinetic equations, the activation energy of oxide decomposition was determined Keywords: InSb, oxide, activation energy, desorption.
High sensitivity of halide vapor phase epitaxy grown indium oxide films to ammonia
Authors: Almaev D. A.  , Almaev A.V.  , Nikolaev V. I.  , Butenko P. N.  , Scheglov M. P.  , Chikiryaka A. V.  , Pechnikov A. I.
Published: August 2023

The effect of H2, NH3, CO and O2 on the electrically conductive properties of In2O3 films grown by halide vapor phase epitaxy has been studied. In the temperature range of 200-550oC, In2O3 films demonstrate gas sensitivity to all considered gases, a relatively high operation speed and repeatability of cycles. The greatest response to NH3 was obtained, which exceeded 33 arb. units at a temperature of 400oC and a gas concentration of 1000 ppm-1. A qualitative mechanism of gas sensitivity of In2O3 films is proposed. The obtained gas-sensitive characteristics are compared with known In2O3 sensors based on various materials. It is shown that the method of halide vapor phase epitaxy makes it possible to obtain indium oxide films with high gas sensitivity. Keywords: In2O3 films, halide vapor phase epitaxy, gas-sensitive properties, response.
Microwave volt-impedance spectroscopy of semiconductor structure
Authors: Reznik A.N.  , Vostokov N. V.
Published: August 2023

Microwave voltage-impedance spectroscopy is used to study a semiconductor structure in the form of a doped n-GaAs film grown on a conducting n^+-GaAs substrate with a buffer sublayer. A system of concentric barrier contacts is formed on the structure surface. A technique has been developed for measuring complex impedance spectrum Z(f,U) of the sample as a function of DC bias voltage U. Spectra Z(f,U) were measured using a Cascade Microtech probe station in the frequency range 0.01-40 GHz with a lateral resolution of 15-30 μm at U=0-10 V. The main electrophysical characteristics of a semiconductor film were determined from the spectra: type, concentration and mobility of free charge carriers, electrical conductivity. An excess resistance was found in the range f=0.1-20 GHz. This effect is interpreted as the deep states (traps) recharging for two types of traps --- low-frequency l and high-frequency h with characteristic time tau_l=10-9 s, tau_h=4.2·10-11 s. A model description is proposed that explains the characteristic shape of the trap resistance spectrum, its dependence on the contact area and voltage U. Keywords: microwave band, near field, impedance, semiconductor, barier contact, deep states, electrophysical characteristics.
Design optimization of the gallium nitride high electron mobility transistor with graphene and boron nitride heat-spreading elements
Authors: Volcheck V. S.  , Lovshenko I. Yu.  , Stempitsky V. R.
Published: August 2023

The self-heating effect has long been a persistent issue for high electron mobility transistors based on gallium nitride due to their inherently poor heat dissipation capability. Although a wide variety of thermal management solutions has to date been proposed, the problem of the extremely non-uniform heat dissipation at the micrometer scale is still challenging. It has recently been demonstrated, however, that the performance of gallium nitride high electron mobility transistors can be substantially improved by the introduction of various heat-spreading elements based on graphene, boron nitride or diamond. In this paper, using numerical simulation, we carried out a design optimization procedure for a normally-off gallium nitride high electron mobility transistor containing both graphene and cubic boron nitride layers. First, a screening experiment based on a very economical Plackett-Burman design was performed in order to find the most critical geometric parameters that influence the dc characteristics. After that, a full two-level factorial experiment consisting of three factors was implemented and an optimized parameter set was yielded. By applying this set, the output power was increased by 11.35%. The combination of the most significant parameters does not include any factors related to the heat-spreading layers. Keywords: gallium nitride, high electron mobility transistor, optimization, Plackett-Burman design, screening experiment, self-heating.
Materialism As Personality: Psychometric Properties Using the Rasch Model
Authors: Wulandari Ririn Mamiek , Hidayat Rahmat
Published: August 2023

Research on the instrument of materialism as a personality in Indonesia is still lacking. The purpose of this study is to determine the psychometric properties using Rasch model on materialistic personality scale. This study was conducted on 505 diploma/S1/S2 students aged 18-25 years old using accidental sampling technique. Data analysis used the Rasch model which is supported by Winstep software. The results showed there were 16 items that fit with the Rasch model, rating scale functioned appropriately, reliability (item=0,99, person=0,55, Cronbach's Alpha=0,61). The analysis results also showed that there were five items that were gender biased, and very high accuracy of measurement information would be obtained at the moderate materialistic personality level.
The Indonesian Version of the Depressive Symptom Index-Suicidality Subscale: Adaptation and Psychometric Evaluation
Authors: Geshica Lavenda , Djajadisastra Ferdi , Sugiarti Sugiarti
Published: August 2023

Suicide is a severe health problem currently a global concern that causes approximately 703,000 deaths each year. 75% of suicide occurs at productive age, with university students as subgroups that are prone to experience suicidal thoughts and behaviors. This study aimed to adapt Depressive Symptom Index- Suicidality Subscale (DSI-SS) into the Indonesian language and evaluate its psychometric properties. The International Test Commission (ITC) requirements were used as a reference in the adaptation process. Moreover, to evaluate the psychometric properties, 510 university students from various regions in Indonesia participated in this study. The result showed that the DSI-SS Indonesia version has good psychometric properties. The corrected item-total correlation ranged from 0.837-0.872, with an alpha reliability coefficient of 0.936. The DSI-SS highly correlated with a test that evaluates depression symptoms (the PHQ-9) and a history of suicide attempts. The exploratory factor analysis also supports the validity evidence, indicating that the DSI-SS is a unidimensional scale.
Etiology and Perception of Suicide: Cultural Explanation Of Suicide From Javanese Perspective
Authors: Nurdiyanto F A , Subandi Subandi
Published: August 2023

The suicide rate in Java is increasingly worrying. Furthermore, there is still a limited exploration of suicide in Javanese culture. This qualitative research intended to explore the perception of suicide in the Javanese with Arthur Kleinman’s explanatory model framework. We interviewed 21 Javanese, of which 28.5% had a history of attempted suicide. Grounded theory analysis found that the Javanese have various terms for suicide based on how suicide is conducted, emotional nuances, and influences of taboo. Suicide is believed to be influenced by suffering, loss of hope, alienation, mental frailty, and low religiosity. It is important to consider cultural characteristics in suicide prevention campaigns and suicide management programs. This article encourages cultural sensitivity for clinicians and health authorities to accommodate the Javanese belief in suicide prevention programs as well as the delivery of effective interventions.
Research on Information Poverty in Ethnic Border Regions
Authors: Haomiao Zhai , Fuxia Gao
Published: August 2023

The information revolution has ushered in a new era of information and economy, with information resources becoming a key resource for regional economic strength and core competitiveness. In the process of informatization in China, there is a significant gap between the central and western regions and the eastern regions in terms of information infrastructure, information resource transmission and acquisition capabilities, information resource utilization and development potential, and information industry development. Therefore, information differentiation and the digital divide have also become important factors leading to the wealth gap in the information age. Against the backdrop of promoting the development of poverty-stricken areas and rural revitalization strategies, the issue of information poverty among the vast rural population in the western region, especially in ethnic border areas, cannot be ignored. To solve the problem of information poverty in ethnic border areas, it is necessary to strengthen the construction of rural information environment, improve farmers’ information literacy, strengthen the construction of information service talent team, and improve the effectiveness of information services.
Reexamine Interpretation, Awaken Sense-perception—From Susan Sontag’s Against Interpretation
Authors: Liu Chang
Published: August 2023

“Content theory” occupies the meaning of artistic works like one hand covers the sky, occupying the stage of the emergence of sensibility, resulting in the absence of sensibility in the appreciation of artistic works. However, the work of art itself is an aesthetic structure with a sense of summoning power. Art is born by “touch” and exists by “feeling”. It arises from very different sense organ, and also calls upon the connoisseur to respond with sensory experiences. To feel the charm of art works in “elsewhere” apart from content, we can have options such as “appreciating the form” and “hearing the sound”. Only by discarding the ideological shackles of the supremacy of content can we get a different taste of aesthetic experience.
Crypto Analysis and Growth
Authors: Thube Atharva
Published: August 2023

Abstract: Cryptocurrencies have emerged as a significant asset class with unprecedented growth and market volatility. This paper presents an analysis of the growth patterns and market dynamics of specific cryptocurrencies, examining their historical performance, weekly top gainers and losers, and trading volumes. The study leverages comprehensive data sets and employs statistical analysis techniques to evaluate the growth trajectories of selected cryptocurrencies. By analyzing historical price data and market indicators, we assess the overall growth patterns, identify market trends, and highlight the most prominent gainers and losers within weekly intervals. This analysis provides valuable insights for investors, traders, and researchers seeking to understand the market dynamics and make informed decisions. Furthermore, the study investigates the trading volumes of cryptocurrencies, as volume plays a crucial role in assessing market liquidity and investor participation. We explore the relationship between trading volumes and price movements, examining whether higher volumes correlate with increased price volatility or stability. These insights contribute to a deeper understanding of market behavior and provide a foundation for developing trading strategies and risk management techniques. The findings of this research shed light on the performance and market dynamics of specific cryptocurrencies, enhancing our understanding of their growth patterns and investor sentiment. Analysis serves as a valuable resource for market participants, enabling them to identify potential investment opportunities, evaluate market trends, and manage risk effectively.
The role of self-esteem on nomophobia with extraversion personality as a moderating variable
Authors: Astriani Defi
Published: August 2023

Nomophobia is an individual’s propensity to use smartphones excessively, resulting in feelings of anxiety and panic when away from their devices. Individuals with high self-esteem are typically affable and optimistic, and vice versa. Smartphones are used to escape their disdain for themselves or as a platform for expressing emotions directly or via social media. People who use smartphones excessively in every aspect of their lives will develop a physical dependence on them and become anxious and concerned when they cannot access them. This study examines the relationship between self-esteem and nomophobia using extraversion as a moderating variable. A total of 105 individuals between 18 and 24 were selected using the quota sampling method to participate in this study. The regression test results demonstrate the role of the two predictor variables in extraversion. Moreover, based on the PROCESS model 4 developed by Hayes, it was discovered that the extraversion personality variable had a minor potential to moderate the relationship between self-esteem and nomophobia, thereby providing a buffering effect despite this potential. The frequency of moderation is 0.102, or 10.20%. This indicates that extraversion moderates the impact of self-esteem on nomophobia by 10.20%
Factor associated with anxiety disorder during covid-19 pandemic among college students
Authors: Nugrahaeni Dyan Kunthi , Mauliku Novie Elvinawaty , Saputra Aditiyana Eka , Lakhal Bashir Mabrok
Published: August 2023

Coronavirus Disease-2019 (COVID-19) is a novel illness not previously identified in humans. Its unprecedented emergence has resulted in many effects on individuals, including the onset of anxiety. Therefore, this study aimed to identify factors associated with an anxiety disorder during the COVID-19 pandemic among college students. Using a snowball sampling technique, a quantitative design was employed to select 453 participants. The instruments used were the 7-point Generalized Anxiety Disorder scale and the Multidimensional Scale of Perceived Social Support. Furthermore, data analysis was carried out using the Chi-Square test and Pearson’s correlation. Several factors related to anxiety disorder include gender (p=0.001), year of study (p=0.001), teaching delivery method (p=0.049), sources of information about COVID-19 (p=0.009), family member affected (p=0.009) and social support (p=0.001). The results showed that social support had a negative correlation with anxiety disorder, support from family (r=-0.33, p=0.001),friends (r=-0.31, p=0.001), and significant others (r=-0.23, p=0.001). Therefore, factors associated with anxiety disorder during the pandemic were gender, study year, teaching delivery method, sources of information, affected family members, and social support.
Forming and strengthening factors of personal growth initiatives in life
Authors: Saraswati Putri , Amalia Sofa , Puspita Arwan Artiarini
Published: August 2023

Personal Growth Initiative (PGI) helps individuals become mentally healthy because PGI is an active and consciousprocess by which individuals develop into better people. This study aims to determine the factors that form PGI in individuals at each stage of human development. The research subjects were 141 men and 256 women, taken by stratified random sampling. The research method used was a mixed method. Research data were collected using the PGI scale and analyzed using descriptive and correlational statistics; qualitative questions were analyzed using thematic analysis. Based on the results of the quantitative analysis, it is known that the more an individual matures, the better his PGI. In adolescence and middle adulthood, PGI is related to gender, while in early adulthood, it is related to education. The results of the qualitative analysis show that the personal growth initiatives forming factors in the participants’ lives are religiosity, achievement goals, pro-sociality, social support, self-esteem, and personal responsibility. Furthermore, the reinforcing factors of PGI are self-reflection and self-efficacy, modeling, religiosity, and self-control.
UTILIZAÇÃO DE ROTEIROS DE AULAS PRÁTICAS EXPERIMENTAIS NO ENSINO DE BIOLOGIA DURANTE A PANDEMIA DA COVID-19
Authors: Rodrigues Meurilúcia Santos , Carvalho Juliana Barros , E Silva Janaína Costa
Published: August 2023

O objetivo desse trabalho foi analisar a aplicabilidade de atividades práticas experimentais de Biologia durante o ensino remoto, estabelecido em meio à pandemia da COVID-19. Foi realizada uma pesquisa de caráter qualitativo com turmas de 3ª série em duas escolas públicas de Ensino Médio no município de Araguatins-TO, sendo uma turma em cada escola. Foram realizadas atividades práticas experimentais por meio de roteiros, sendo três aplicadas em uma das escolas e duas aplicadas na outra, de maneira síncrona e assíncrona. A organização dos roteiros se fundamentou nos objetos de conhecimento ministrados nas aulas, sendo que os experimentos foram selecionados, testados e adaptados para o ensino remoto. A coleta dos dados foi realizada por meio de um questionário no Google Forms©, aplicado aos alunos. Os dados foram tabulados no próprio programa, depois analisados e interpretados. A maioria dos alunos considerou importante a utilização de atividades práticas no período de pandemia; 92% dos alunos A e 86,7 % dos alunos B começaram a se interessar mais pela disciplina de Biologia. Após a realização das atividades, 75% dos alunos A e 86,7% dos alunos B acreditam ter aprendido mais com as atividades práticas do que assistindo às aulas teóricas, e destacaram que a prática é mais interessante para sua aprendizagem, pois exige mais deles. Ficou evidente que as atividades práticas experimentais fazem a diferença dentro e fora da sala de aula. Os dados obtidos demonstraram que a aplicação das atividades práticas pode ser feita de forma simples, adaptada à realidade dos alunos, utilizando materiais alternativos e aos quais todos podem ter acesso.
Mindfulness and Consumption: Routes Toward Consumer Self-Control
Authors:   , Sebastião Letícia Vedolin
Published: August 2023

This dissertation consists of three papers, an integrated discussion chapter and a reflection chapter. The first paper is a systematic review of the literature on mindfulness and consumption, integrating findings from different fields of research and shedding light on how mindfulness affects consumer behavior. The second paper empirically tests whether mindfulness can be a boundary condition for the effects of uncertainty on virtuous consumption. The third paper empirically tests whether learned mindfulness can affect the anti-saccade task. Finally, I attempt to integrate the findings from the three papers in a closing chapter and reflect on my journey as a PhD student at Copenhagen Business School. Denne afhandling består af tre artikler, et diskussionskapitel samt et refleksionskapitel. Den første artikel er en systematisk gennemgang af litteraturen indenfor mindfulness og forbrug, hvor resultater fra forskellige forskningsfelter sammenstilles og sammenlignes. Artiklen kaster derved lys over hvordan mindfulness og forbrug er blevet videnskabeligt undersøgt og sætter ofte modstridende resultaterne i perspektiv. Den anden artikel tester empirisk, hvorvidt mindfulness kan støtte et hensigtsmæssigt forbrug (bevidst beslutning). Ikke mindst forsøger undersøgelsen at afklare grænsen for effekten af mindfulness. Den tredje artikel tester empirisk hvorvidt praktiseret mindfulness kan påvirke ubevidst adfærd og visuel opmærksomhed (antisaccade-opgaven). Til sidst integreres resultaterne fra de tre artikler i et afsluttende kapitel, og jeg reflekterer over min rejse som ph.d.-studerende ved Copenhagen Business School.
A binary linear programming to the planning of wireless systems
Authors: Beltrán-Gómez Yesica Tatiana , Linero-Ramos Rafael David , Gómez-Rojas Jorge
Published: August 2023

Locating access points for Wi-Fi networks in a post-pandemic scenario proposes an application in the planning and restructuring of existing wireless systems. Education strategies such as the flipped classroom, among others, demand the overall performance of the system. In this work, we propose a methodology using binary linear programming as a strategy to achieve the planning of a Wi-Fi system that can have the objectives of coverage, user capacity and channel interference. The results show a better coverage, higher speed per user and optimized the amount of equipment per sector in the laboratories of the University of Magdalena.
Mechanical engineering, a proposal towards research with an impact on society
Authors: Valencia Duque Melissa , Ríos Osorio Daniel , Tibaquirá Juan Esteban , Ospina Sebastián , Castillo Herrera Juan Carlos , López Juan Camilo , Quirama Luis Felipe , Castillo Juan Carlos , Serrato David Andrés , Restrepo Álvaro
Published: August 2023

The authors are pleased to present the findings of the research projects conducted by GENERGÉTICA research group affiliated to the Department of Mechanical Engineering at the Universidad Tecnológica de Pereira. These chapters delve into research topics concerning fuel economy and energy efficiency in light duty vehicles (LDV). In the first chapter, titled "Fuel economy baseline update for light duty vehicles in Colombia", authors Melissa Valencia, Daniel Ríos, Juan E. Tibaquirá, Sebastián Ospina, Juan C. Castillo, Juan C. López, and Luis F. Quirama provide an update on the fuel economy baseline of the LDV fleet in Colombia between 2017 and 2019. This project received funding from The United Nations Environment Programme (UNEP) as part of the Global Fuel Economy Initiative (GFEI). The fuel economy baseline serves as foundation for future policy measures aimed at enhancing the fleet’s energy efficiency and quantifying their potential impact. This chapter details the methodology used to establish and update the fuel economy baseline in Colombia, which can be applicable to other countries as well. Furthermore, it presents disaggregated results based on vehicle classes such as cars, trucks, campers, pickups, and vans, providing a comprehensive overview of the current state of the national LDV fleet. In the second chapter “Determination of the coefficients of resistance to the movement of a light vehicle type automobile” authors Juan C. Castillo, Juan C. López, David A. Serrato, Álvaro Restrepo, and Juan E. Tibaquirá propose a methodology for measuring the fuel consumption of LDVs considering its movement resistance coefficients. This study was funded by the Instituto Nacional de Metrología de Colombia with the objective of establishing road and laboratory procedures for quantifying movement resistance coefficients and incorporating them into laboratory fuel consumption tests. The chapter describes the methodology, the analysis of the deceleration curves both on road and in laboratory and outlines the adjustment and calibration methods employed. It also presents an uncertainty model that encompasses all the stages of the procedure. The Department of Mechanical Engineering welcomes the reading of these studies, which aim to address the national and regional challenges pertaining to energy efficiency and emissions in the transportation sector.