bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of supervisory style on supervision outcomes among Undergraduate Trainee Counsellors
Authors: Ghazali N. M
Published: February 2021

The research aimed to identify the influence of supervisory styles on supervision outcome among undergraduate trainee counsellors. This research was quantitative with correlational research design in order to identify the influence and relationship between independent and dependent variables among trainee counsellors. 100 respondents from two (2) public universities in Malaysia were recruited. Stratified random sampling technique was utilized to select the respondent and proportional stratification was used to determine the sample size of each stratum. Supervisory Styles Inventory (SSI) and Supervisory Satisfaction Questionnaire (SSQ) was the instrument used in this study. The System Approach to Supervision (SAS) Model become underlying theory in this research. The results of the study were analysed by using Pearson’s product-moment Coefficients and Multiple Regression. Based on the findings, the supervisory styles showed that there was significant relationship with supervision outcome (r= 0.49, p< 0.05). Three of supervisory styles which were attractive (r= 0.48, p< 0.05), interpersonally sensitive (r= 0.48, p< 0.05) and task-oriented (r= 0.42, p< 0.05). The supervisory styles also showed there was significant influence with supervision outcome. Among the three supervisory styles, attractive and interpersonally sensitive was the most influence on supervision outcome (R2=0.23, Adjusted R2=0.22, F(1, 98) = 29.05, p<0.05). The findings of this study perhaps could expand knowledge and understanding on the individual differences to supervision field. Supervisors could examine and reflect upon their styles based on theoretical framework provided and can restructure the styles. Lastly, it also can improve the quality and effectiveness of supervision for both supervisor and supervisee.
A Mixed-Method Study on the Perceptions of Quality Management and Sustainability in Malaysian Hotel Industry
Authors: Sin Kit-Yeng
Published: February 2021

Rising trend of sustainability within tourism especially hotel industries remain ambiguous in many different areas of academic research and business. Nonetheless, contemporary relevance of quality practices and sustainability in the hotel industries has increased lately. This paper examined hotel quality managers (HQMs) perceptions of quality management and sustainability via the sequential-mixed methods approach, to bridge the gaps in the existing literature on the connection between pertinent variables. Therefore, in Phase 1 ten HQMs were deliberately selected and interviewed to perceive their views on quality management and the relationship between various quality management constructs towards sustainable performance. Phase 1 revealed that business ethics emerged as a new dimension, which needed to be emphasised. Subsequently, the qualitative results were utilised to design the hypotheses for 300 HQMs’ quantitative surveys in Phase 2. The obtained survey data was analysed via the Partial Least Square-Structural Equation Models (PLS-SEM) to determine a list of hypotheses related to the impacts of key constructs. The present study depicted a significant and positive mediating connection between the HQMs perspective of quality management, business principles, and sustainable performance.
Factors Affecting Employee Commitment to Change in Malaysia Service Organizations: The Moderating Impact of Organization Culture
Authors: Lim Sing Yee
Published: February 2021

Organizational change has been receiving tremendous concern lately as the everchanging environment causes companies to succumb to changes. Employee commitment towards change is detrimental in an organizational change. This research aims to investigate the factors that affect employee commitment to change and to examine the moderating effect of organization culture in service organizations. A total of 190 responses was collected from the employees working in the service organizations in Malaysia. Smart PLS 3.0 was used for data analysis. The proposed research model was assessed based on path modeling and bootstrapping. The findings found that among the four factors, only quality of relationship with the manager, fit of change with vision, and job motivation are significantly related to employee commitment to change. Moreover, the results have found no empirical evidence to support the moderating role of organization culture. The implications, limitations and future research were further discussed in this research.
Bid and Ask spreads for the cap and floor contracts under the Liouville fractional Vasicek model
Authors: Mehrdoust Farshid
Published: February 2021

This paper presents bid and ask formulas for cap and floor contracts prices byusing Wang transform under a Liouville fractional Vasicek (LfVasicek) interest rate model. To do this, the parameters of the model are calibrated by using the Newton-Raphson (NR) method. Then the standard and Liouville fractional versions of the Vasicek model are compared by the Bayes information criterion (BIC). Finally, we obtain the bid-ask boundaries for interest rate amount and cap and foor prices.
Impacto económico del sector turístico en España
Authors: Cabrer-Borras Bernardí , Rico Paz
Published: February 2021

La actual crisis sanitaria, provocada por el denominado Covid-19, y la crisis económica devenida van a tener un elevado impacto en uno de los sectores más relevantes de la economía española: el sector del turismo. El objetivo de este trabajo es cuantificar el alcance que distintos escenarios, contemplados para el sector del turismo, pueden tener en la economía española. La metodología utilizada en este trabajo es un modelo, basado en las tablas Input-Ouput y propuesto por Leontief (1946), que permite medir la repercusión que variaciones en la demanda final de un sector tienen en la actividad económica de otros sectores y en el conjunto de la economía. Los resultados de los distintos escenarios desarrollados ponen en evidencia el significativo efecto que la crisis sanitaria va a tener, en términos de empleo y producción, en uno de los sectores más importantes de la economía española. La prioridad de actuación es impulsar medidas que permitan asegurar el mejor de los escenarios posibles, que aun así conllevará recortes en el empleo y la producción de la economía.
Relationship between education level and holding a full-time or part-time employment (Portugal 2006-2016)
Authors: López Bermúdez Beatriz , Oliveira Silva Carla Sofia , Freire-Seoane María Jesús
Published: February 2021

The 2008 economic crisis produced significant setbacks in economic growth in developed countries, and countries like Portugal, in particular,were seriously harmed. Human capital is a factor of production which provides benefits to both individuals and society and, as such, it is crucial when analysing countries’ economic revivals. This article’s goal is to carry out a study of the likelihood of being employed in Portugal between 2006 and 2016, differentiating between full-time and part-time work, according to the maximum level of study attained. The results show that individuals with higher education have a high probability of having full-time work.
Exploring Service Brand Associations: A Consumers' Perspective in Rising Service Economy
Authors: Qureshi Jawaid Ahmed , Padela Shoaib Muhammad Farooq , Qureshi Shahid , Baqai Sana
Published: February 2021

Across the globe, the importance of the service sector is flourishing as a result of which significance of research to understand the characteristics and attributes of services is rising exponentially. Poor understanding of service characteristics has led to an undue reliance on branding models previously designed for tangible products. Although most of the researches have tried to modify their branding models to cater to the requirements of service branding, most of them are largely based on managerial and organizational perspectives. Few researches have attempted to highlight consumer’s perspectives of what they consider important in a service brand. This study focuses on consumers’ perceptions of important service brand associations and aims to be a stepping stone in the process of developing a specialized model for service branding. The qualitative information garnered for this research allowed digging deeper into the consumer’s mind through in-depth personal interviews. The analytical method of coding, sorting, and sifting assisted in discovering the service brand associations. The results indicate salience of brand associations for consumers of service brands. The most frequently identified service brand associations include service environment and facilities, staff behavior, word-of-mouth communication, price, core service quality, experience (of the service provider and consumers), and advertising of the service brands.
Model of bribery deterrence
Authors: Tsurikov Vladimir Ivanovich
Published: February 2021

The subject of this research is the measures for halting the flow of bribes (product of the number of bribes by the average value). One of the key factors of corruption rampant in modern Russia consists in the weak stimuli and absence of adequate motivation among the representatives of law enforcement agencies. The research was conducted using the methods of mathematical modeling, and is based on the assumption that penal sanctions are the only punishment intended for the official caught in the act of accepting the bribe. In order for the controller who imposes penalty not to have stimulus to accept a bribe from the official in the amount lower than the amount of penalty for concealing his offence, the penalty becomes the property of the controller in full. It is assumed that each of the parties aims for maximization of their net income. Conditions are established, under which the flow of bribes a) only increases, b) along with efforts of the controller, makes periodic fluctuations in time, c) monotonously tends to zero.
The model of international trade by the type of mutual attraction of the EAEU, SCO and BRICS countries
Authors: Ozarnov Ruslan
Published: February 2021

The article is devoted to the study of factors affecting the financial and economic cooperation of countries with an emerging market within the framework of three blocs, namely the EAEU, BRICS and SCO, by building a model based on the type of mutual attraction. The countries belonging to the former USSR is considered separately. The time period of the study has been established, which begins in the crisis year 2014 for Russia and continues to the present. The subject of the analysis is the financial and economic relations arising in the process of cooperation of countries with an emerging market that are members of such associations as the EAEU, SCO and BRICS. The author examines the factors affecting the financial and economic cooperation of countries with an emerging market: the depth and scale of foreign trade turnover, gross domestic product per capita, the index of trade openness, the rate of growth of the currency of the importing and exporting countries, the distance between countries, the involvement of a country with an emerging market in such associations as the EAEU, BRICS, SCO. The research is based on general scientific methods of cognition (analysis, synthesis, comparison), presentation of tabular and graphical interpretation of statistical information, time series, econometric modeling using the EViews software product. The novelty of the article lies in determining, using econometric methods, the factors affecting the financial and economic cooperation of countries with an emerging market within the framework of three blocks, namely the EAEU, BRICS and SCO, by building a model based on the type of mutual attraction. The peculiarity of the presented model is the presence of lag exchange rates. The inclusion of the lag of the relative change in the exchange rate of the exporter led to the fact that the data for 2014 were excluded from the sample. It is advisable to take into account the results obtained in Russia's cooperation both on a bilateral basis and in a multilateral format within the framework of the EAEU, BRICS and SCO.
Multi-purpose Geographically-oriented Economy as the preferred Model of Economically secure Development of the Russian Federation
Authors: Samoilova Liudmila Konstantinovna
Published: February 2021

In the article, by analyzing the provisions of economic science, the features of various models of the economy вЂ“ socially oriented, "green", innovative, digital - are characterized, which made it possible to formulate advantages and disadvantages for economic agents in the transition to each. In most developments, the emphasis is placed on the positive aspects of replacing the general line of economic development, however, the unwillingness of an individual, society, state, and its structural units to reform can become a threat to the security of the territory's economy, provoking the emergence of its borderline states вЂ“ conditionally safe, pseudo-safe, which grow into dangerous when ignored. Therefore, the purpose of the article was to clarify the attributes of the schemes listed above, which served as a justification for the need to switch to a multi-purpose geographically oriented economy model on the scale of the Russian Federation.The research was carried out using the following methods: general scientific вЂ“ analysis, synthesis, induction, deduction, which allowed to reveal the characteristic features of various economic models; private scientific вЂ“ SWOT analysis, through which positive and negative consequences for economic entities were determined when choosing a new economic course. In the course of the study, the judgment about the ambiguity of the results of the introduction of a particular model of the economy is substantiated. The position is argued according to which the change of the vector of economic development in public legal entities of different levels should be implemented taking into account their internal potential, and neglect of its condition can cause the emergence of border states of the territory's economy on the basis of protection from negative activities - conditionally safe, pseudoвЂ“safe. In view of the high degree of differentiation of Russian regions, in order to avoid increasing imbalances, a model of a multi-purpose geographically-oriented economy is proposed, in the construction of which emphasis is placed on local features. The presented results are aimed at expanding the provisions of economic science. And the use of the author's approach to the restructuring of the economic model in relation to the subjects of the Russian Federation will minimize fruitless attempts to change the socio-economic guidelines of their development.
Measuring the Quality of Internet Connectivity Service Rendered to South African Public Libraries
Authors: Ledwaba Lesiba Stephen
Published: February 2021

The measuring of rendered services in any industry, especially in libraries, remains a critical tool to assess the satisfaction level of clients as well as the quality of the services. This article reports on a study that was undertaken to measure the quality of internet access service to South African public libraries by using the service quality model. The paper was guided by these objectives to identify the service quality models applicable to public libraries’ internet access; to determine how the quality of internet access service fits within the South African broadband policy; and to apply service quality dimensions to public libraries’ internet access. The study employed a quantitative approach and survey design in which a questionnaire was used to collect data from 322 heads of public libraries in South Africa. The stratified sampling method was used to obtain a proportional representation of public libraries. It emerged that most respondents regarded their internet service providers (ISPs) as incapable of solving their technical problems. It was further found that in most cases ISPs applied the internet access policies inconsistently to public libraries they served. The study recommended, among others, that internet connectivity to public libraries be centralised and that a competent provider be appointed to manage this service.
A MANIFESTAÇÃO DO SAGRADO NA NARRATIVA ÉPICA DA TEOGONIA "The manifestation of the sacred in the epic narrative of the theogony"
Authors: Lima Idelbrando Alves de
Published: February 2021

O mundo sagrado, como oposição constante com o mundo profano, influenciou a vida cotidiana dos homens da Antiguidade. Face ao exposto, o presente artigo trata-se de um breve estudo analítico sobre algumas características da experiência do grego Hesíodo com o sagrado, narradas na obra Teogonia. Após realizar uma sucinta teorização a respeito da temática, conceituando alguns termos essenciais para a sua compreensão, o artigo passa a apresentar as principais passagens da vida deste personagem histórico. Por fim, o estudo expõe a análise dos principais aspectos dessa manifestação do sagrado, concluindo que ela foi de fundamental importância para o contexto sócio histórico, no qual Hesíodo estava inserido.Palavras-chave: Hierofania. Hesíodo. Religião. Literatura.AbstractThe sacred world, in a constant opposition with the profane world, influenced the daily life of men in the Ancient Times. This article is a brief analytical study on some characteristics of Greek Hesiod's experience with the sacred, narrated in his Theogony. After conducting a brief theorizing thinking about the subject we need conceptualizing some essential terms to their understanding. The article try to show some passages of the life of this historical character. Finally, the study exposes the analysis of the main aspects of this manifestation of the sacred, concluding that it get fundamental importance for the socio-historical context in which Hesiod was inserted.Keywords: Hierophany. Hesiod. Religion. Literature.
O IMAGINÁRIO AFRO-BRASILEIRO DE JOÃO GUIMARÃES ROSA EM SÃO MARCOS E CORPO FECHADO "The imaginary afro-brasilian by João Guimarães Rosa in São Marcos and Corpo Fechado"
Authors: Araujo Cristiano Santos
Published: February 2021

Este artigo tem por objeto dois contos do livro Sagarana, o primeiro é São Marcos, e o segundo, Corpo Fechado. Nosso objetivo é analisar o imaginário afro-brasileiro de João Guimarães Rosa, mineiro do sertão de Cordisburgo. Na análise das obras, serão utilizados os referenciais teóricos que dizem respeito às estruturas do imaginário, às conceituações de magia brasileira nas ambiências dialógicas entre o dito e o feito, mas também na tradição histórica da temática de ritual e feitiço a partir dos clássicos, Claude Lévi-Strauss e Marcel Mauss, assim como os contemporâneos Bronislaw Malinowski e Yvonne Maggie. Nosso desafio é analisar o imaginário afro-brasileiro em seus usos da reza, magia e feitiços, retratados ficcionalmente por Guimarães Rosa nos contos São Marcos e Corpo Fechado, ambos formam um breve retrato de nossa afro-brasilidade, e uma oportuna leitura da cultura e religiosidade popular no sertão mineiro e brasileiro.Palavras-chave: Antropologia. Imaginário. Guimaraes Rosa. Afro-brasilidade.AbstractThis paper focuses on two tales in Sagarana book. The first is São Marcos and the second one is Corpo Fechado. Our goal is to analyze the afro-brazilian imaginary of João Guimarães Rosa a Brazilian writer borned at Cordisburgo-MG. A city in the middle of the Brazilian hinterland called sertão. In the analysis of the works the theoretical frameworks that relate to the imaginary structures will be used. The Brazilian magic concepts in dialogical ambiences between said and done, but also in the historical tradition of ritual and spell theme from classic, Claude Lévi-Strauss and Marcel Mauss, as Bronislaw Malinowski and contemporary Yvonne Maggie. Our challenge is analyse the afro-brazilian imagination in their use of prayer, magic and spells, fictionally portrayed by Guimarães Rosa in the two tales, both form a brief portrait of our afrobrasilidade, and a timely reading culture and popular religiosity in the Brazil’s Minas Gerais’s brazilian backlands.Keywords: Anthropology. Imaginary. Guimarães Rosa. Afro-brasilidade.
NOMINATA DE PARECERISTAS AD HOC
Authors: UNICAP Paralellus
Published: February 2021

Nominata 2014.
O CONCEITO DE PESSOA NO DEBATE BIOÉTICO "The Concept of person in bioethical debate"
Authors: Grigoleto Sérgio
Published: February 2021

O presente Artigo apresenta diversas formas de se compreender quando começa a vida humana. Dependendo da forma de compreender o início desse fenômeno e de como se compreende o embrião ou feto, dependerá nosso modo de nos relacionarmos com o ele, – o feto – assim como a sua condição jurídica. Apresenta-se de início, a corrente personalista, que identifica o conceito de pessoa com o de ser humano, defendendo que o ser humano, desde seu primeiríssimo estágio de desenvolvimento é pessoa, e, portanto, titular de direitos. Logo após, apresenta-se várias teorias que afirmam que o embrião ou feto, de acordo com seu estágio de desenvolvimento é um ser humano, mas não é pessoa, e por isso, não é titular de direitos, entre os quais, o direito fundamental à vida e à integridade física.Palavras-chave: Início da vida. Embrião. Pessoa. Pré-natal. AbstractThis Paper presents several forms one can apprehend the exact moment which human life in flows out. Depending on the way one perceives as being embryo or fetus, from these perspectives, one can discover how dealing with it, i.e. the embryo or fetus, as well as with regards to its juridical condition. One can present, first of all, the personalistic current which identifies the concept regarding to the person with the human being that one, assuming the which the human being according to, since its primary development stage, is a person in itself and therefore – person – has its own rights as a titular by itself. Soon after, one has presented several theories that affirm the embryo or fetus, according to its development is a human being, but it is not a person and, therefore, it has not its right as a titular by itself, including among these ones i.e. rights, its fundamental right to life and to its physical integrity.Keywords: Life Beginning. Embryo. Person. Pre-natal.
Inclusão de alunos autistas como percursos da redução dos danos causados pelo desprezo social: uma revisão bibliográfica
Authors: Thiengo Edmar Reis , Santos Aleziani Scherrer , Neves Edilcia das Neves Sant’Ana Sedano , Costalonga Juliana Pereira , Cordeiro Leonardo dos Santos , Talyuli Vilma Alves Ramos , Costalonga Francieli da Costa Pinto , Leite Viviane Santiago de Jesus , Borges Lyvian Teixeira , De Freitas Jossieli Lucio Pereira
Published: February 2021

Objetivo: Trata-se de estudo inclinado a analisar a literatura que trata da inclusão de alunos autistas como forma de reduzir os danos à sua saúde mental, causados pelo abandono e desprezo social. Revisão bibliográfica: Diante dos inúmeros problemas enfrentados na defesa da inclusão como forma de tratamento e de reduzir os impactos dos transtornos nas pessoas que os possuem, torna-se necessário analisar profundamente os efeitos do desprezo social aos alunos com autismo, como isso influência na sua vida escolar e quais políticas públicas ou novas ações do cotidiano estudantil podem ser adotados para reduzir danos à sua saúde mental. Tratar de inclusão social para os alunos com autismo, perpassa por uma série de conceitos e necessidades instrutivas, como evitar as abordagens demonstrando pena, incapacidade mental e qualquer tratamento que reduza a condição humana do aluno. Considerações finais: Este estudo está debruçado em pesquisas teóricas publicadas que abordam temas iguais ou parecidos, e se inspira na forte proposta de inclusão dos inúmeros programas sociais já existentes ou propostos, almejando promover a saúde mental do aluno autista.
Steroids for delayed cerebral edema after traumatic brain injury
Authors: Prasad G. Lakshmi
Published: February 2021

Background:

Brain edema is a common phenomenon after traumatic brain injury (TBI) resulting in increased intracranial pressure and subsequent neurological deterioration. Experimental studies have proven that brain edema is biphasic (cytotoxic followed by vasogenic). Till date, all studies, including the corticosteroid randomization after significant head injury (HI) trial, have used high-dose steroids in the acute period during which the edema is essentially cytotoxic in nature. No clinical data exist pertaining to delayed cerebral edema (vasogenic) and steroids.

Methods:

Patients who had received steroids for delayed cerebral edema after TBI were retrospectively analyzed over a 2-year period. Steroid dose, timing of steroid prescription, time to improvement of symptoms, and complications were noted.

Results:

There were six males and three females. Mean age was 41.1 years. There were no severe HI cases. All subjects had cerebral contusions on imaging. Dexamethasone was the preferred steroid starting with 12 mg/day and tapered in 5–7 days. The mean interval to steroid administration after trauma was 7 days. The mean duration of steroid prescription was 6.3 days. All patients had complete symptomatic improvement. The mean time to symptom resolution was 3.8 days. No patients experienced any complications pertinent to steroid usage.

Conclusion:

This is the first study to document efficacy of steroids for delayed cerebral edema after TBI, at least in mild/moderate head injuries. The timing of steroid usage and dose of steroids is key aspects that might determine its efficacy in TBI which was the drawbacks of the previous studies. Future prospective trials with the above factors in consideration may confirm/refute above findings.
Redesign and Retro Design as Methods of Creating Works of Modern Art and Design
Authors: Krasnoshchyokov Vladimir A. , Belko Tatiana V.
Published: February 2021

The article examines the trend, widespread in modern art and design, to draw inspiration from preceding styles and directions that have remained in one form or another as historical memory and as artifacts existing in the same cultural and information space. The design culture reached its highest level in the field of prototype design during the last phase of modernism in the middle of the 20th century. The postmodern era has broken this tradition. The rejection of modernism as an outdated artistic and creative approach and the search for new ways and methods of design were reflected in the alternative areas of design of the second half of the 1960s, such as radical design and anti-design, which later resulted in redesign and banal design. Rejecting the achievements of modernism with its cult of aesthetics and functionality, and relying on self-expression, designers of the new generation have abandoned attempts to form and develop universal models with a high degree of subordination to aesthetic norms and values, but nevertheless turned to modernism and earlier styles and eras as sources of inspiration. Therefore, it is no accident that a characteristic feature of the design of the turn of the 20th—21st centuries is the endless self-repetition, while redesign and retro design can be considered the key methods of modern design and creation of artworks. In the near future, this situation may, probably, lead to the fact that art and culture will no longer produce original products and ideas. In this regard, the attractiveness, especially for the younger generation, of forms, genres, and techniques that have existed for decades is a cause for concern. Appropriation, reference, and recursion have become typological features of design. Giving opposing opinions on this issue, this article suggests to reflect on the question: should the constant reversion of culture to its past and the related substitution of the novelty of genuine innovation be considered as a positive or negative phenomenon?.
PENINGKATAN HASIL BELAJAR KETERAMPILAN PASSING BAWAH DALAM PEMBELAJARAN BOLA VOLI MELALUI METODE TUTORIAL TEMAN SEBAYA
Authors: Fauzie Muhamad
Published: February 2021

Pembelajaran yang diajar oleh guru merupakan rutinitas harian proses belajar mengajar di sekolah. Kelemahan metode ini adalah siswa selalu menerima materi dari guru dan tidak memiliki kesiapan untuk menggali informasi lebih dalam. Karakterisitik kelas yang mandiri akan mengesampingkan kemampuan siswa jika hal ini terus dilakukan. Penelitian ini bertujuan untuk menggunakan siswa teman sebaya sebagai tutorial pembelajaran.  Sehingga penelitian ini bertujuan untuk mengetahui  efektifitas teman sebaga dalam pembelajaran. Pembelajaran bola volley materi keterampilan passing bawah di sekolah dasar. Penelitian  menggunakan desain Penelitian tindakan kelas (PTK) dan sifat penelitian kolaboratif. Penelitian ini dilakukan dalam 2 siklus yang terdiri dari tahap perencanaan, pelaksanaan, obseravasi dan refleksi.  Subjek penelitian ini yaitu siswa kelas V SD  Negeri 05 Pontianak Kota yang berjumlah 29 siswa dengan siswa laki-laki berjumlah 11 orang dan siswa perempuan berjumlah 18 orang. Teknik dan alat pengumpulan data menggunakan tes passing bawah dan observasi. Hasil penelitian menjelaskan bahwa metode tutorial teman sebaya terdapat peningkatan hasil belajar siswa yakni pada siklus pada siklus I nilai rata-rata  73,21 = 73 dan 80,42 = 80 siklus II.  berarti ada selisih kenaikan hasil belajar siklus II dengan siklus I sebesar 7,21%. Dari hasil penelitian maka diharapkan guru PJOK dapat menerapkan metode tutorial teman sebaya sebagai alternatif dalam pembelajaran passing bawah bola voli untuk kelas atas.
Generating W states with braiding operators
Authors: Padmanabhan Pramod , Sugino Fumihiko , Trancanelli Diego
Published: February 2021

Braiding operators can be used to create entangled states out of product states, thus establishing a correspondence between topological and quantum entanglement. This is well-known for maximally entangled Bell and GHZ states and their equivalent states under Stochastic Local Operations and Classical Communication, but so far a similar result for W states was missing. Here we use generators of extraspecial 2-groups to obtain the W state in a four-qubit space and partition algebras to generate the W state in a three-qubit space. We also present a unitary generalized Yang-Baxter operator that embeds the W_n state in a (2n-1)-qubit space.
Time evolution of entanglement in a four-qubit Heisenberg chain
Authors: Pakarzadeh Hassan , Norouzi Zahra , Vahedi Javad
Published: February 2021

The phenomenon of quantum entanglement has a very important role in quantum mechanics. Particularly, the quantum spin chain provides a platform for theoretical and experimental investigation of many-body entanglement. In this paper, we investigate time evolution of entanglement in a four-qubit anisotropic Heisenberg XXZ chain with nearest neighboring (NN), the next nearest neighboring (NNN), and the Dzialoshinskii-Moriya (DM) interactions. Calculations of the entanglement evolution of the Werner state carried out in terms of concurrence for selected ranges of control parameters such as DM interaction, frustration, etc. The results show that for the Werner state, DM interaction and the frustration parameters play important roles. Furthermore, results show that the time evolution of the Werner state entanglement may be useful to capture the quantum phase transitions in quantum magnetic systems.
Reduction of O2 to H2O2 using Small Polycyclic Molecules
Authors: Lopez Kristal , Groves Michael
Published: February 2021

Hydrogen peroxide is an environmentally friendly oxidizing agent that is important in several industries. It is currently produced industrially via the anthrahydroquinone (AHQ) process where O2 reacts with a functionalised version of anthrahydroquinone to produce H2O2 and anthraquinone. In the previously published DFT pathway for this process the transition of the OOH? radical across the partially dehydrogenated AHQ catalyst was not explored. In this paper, we will use DFT to explore this step and show that there is a deep potential energy minimum that inhibits the OOH. from being fully reduced. We then examine other similar sized polycyclic molecules with two OH-groups on the same side that could serve as alternative catalysts without this issue. In this analysis, we identify Phenanthraquinone as a possible alternative and present the pathway for this candidate to produce H2O2 as well as its regeneration with H2.
Evaluation of Thermochemical Machine Learning for Potential Energy Curves and Geometry Optimization
Authors: Folmsbee Dakota , Koes David R. , Hutchison Geoffrey
Published: February 2021

While many machine learning methods, particularly deep neural networks have been trained for density functional and quantum chemical energies and properties, the vast majority of these methods focus on single-point energies. In principle, such ML methods, once trained, offer thermochemical accuracy on par with density functional and wave function methods but at speeds comparable to traditional force fields or approximate semiempirical methods. So far, most efforts have focused on optimized equilibrium single-point energies and properties. In this work, we evaluate the accuracy of several leading ML methods across a range of bond potential energy curves and torsional potentials. Methods were trained on the existing ANI-1 training set, calculated using the ωB97X / 6-31G(d) single points at non-equilibrium geometries. We find that across a range of small molecules, several methods offer both qualitative accuracy (e.g., correct minima, both repulsive and attractive bond regions, anharmonic shape, and single minima) and quantitative accuracy in terms of the mean absolute percent error near the minima. At the moment, ANI-2x, FCHL, and our new grid-based convolutional neural net show good performance.
Why is Mechanical Fatigue Different from Toughness in Elastomers? The Role of Damage by Polymer Chain Scission
Authors: Sanoja Gabriel , Morelle Xavier P. , Comtet Jean , Yeh C. Joshua , Ciccotti Matteo , Creton Costantino
Published: February 2021

Although elastomers often experience 10-100 million cycles prior to failure, there is currently a limited understanding of their resistance to fatigue crack propagation. We use soft and tough double-network elastomers tagged with mechanofluorescent probes to understand the role of damage by sacrificial bond scission on their mechanical durability and fracture toughness. Damage accumulation and localization ahead of the crack tip depend on the areal density of sacrificial bonds, as well as on the applied load (i.e., cyclic or monotonic). This information serves to engineer fatigue resistant elastomers, understand fracture mechanisms, and reduce the environmental footprint of the polymer industry.
Immobilization of Nanobodies with Vapor-Deposited Polymer Encapsulation for Robust Biosensors
Authors: Fan Ruolan , Du Jiale , Park Kwang-Won , Strieter Eric , Andrew Trisha L. , Chang Lin Hui
Published: February 2021

To produce next-generation, shelf-stable biosensors for point-of-care diagnostics, a combination of rugged biomolecular recognition elements, efficient encapsulants and innocuous deposition approaches are needed. Furthermore, to ensure that the sensitivity and specificity that is inherent to biological recognition elements is maintained in solid-state biosensing systems, site-specific immobilization chemistries must be invoked such that the function of the biomolecule remains unperturbed. In this work, we present a widely-applicable strategy to develop robust solid-state biosensors using emergent nanobody (Nb) recognition elements coupled with a vapor-deposited polymer encapsulation layer. As compared to conventional immunoglobulin G (IgG) antibodies, Nbs are smaller (12-15 kDa as opposed to ~150 kDa), have higher thermal stability and pH tolerance, boast greater ease of recombinant production, and are capable of binding antigens with high affinity and specificity. Photoinitiated chemical vapor deposition (piCVD) affords thin, protective polymer barrier layers over immobilized Nb arrays that allow for retention of Nb activity and specificity after both storage under ambient conditions and complete desiccation. Most importantly, we also demonstrate that vapor-deposited polymer encapsulation of nanobody arrays enables specific detection of target proteins in complex heterogenous samples, such as unpurified cell lysate, which is otherwise challenging to achieve with bare Nb arrays.
On the Temperature Dependence of Vaporization Enthalpy and its Correlation with Surface Tension.
Authors: Alibakhshi Amin , Hartke Bernd
Published: February 2021

Temperature dependence of vaporization enthalpy is one of the most important thermophysical properties of compounds. In the present study, we theoretically developed relationships applicable to evaluation of vaporization enthalpy of compounds from diverse chemical families for a wide temperature range from melting point to the critical temperature. One outcome of the proposed approach is a relationship describing the correlation between the surface tension and vaporization enthalpy which outperforms the extensively applied Kabo method proposed for the same purpose.
Dynamical Cooperativity of Ligand-Residue Interactions Evaluated with the Fragment Molecular Orbital Method
Authors: Tanaka Shigenori , Tokutomi Shusuke , Hatada, Ryo , Okuwaki Koji , Akisawa Kazuki , Fukuzawa Kaori , Komeiji Yuto , Okiyama Yoshio , Mochizuki Yuji
Published: February 2021

By the splendid advance in computation power realized with Fugaku supercomputer, it has become possible to perform ab initio fragment molecular orbital (FMO) calculations for thousands of dynamical structures of a protein-ligand complex in a parallelized way. We have thus carried out the electron-correlated FMO calculations for a complex of the 3C-like (3CL) main protease (Mpro) of the new coronavirus (SARS-CoV-2) and its inhibitor N3 incorporating the structural fluctuations sampled by classical molecular dynamics (MD) simulation in hydrated condition. Along with a statistical evaluation of inter-fragment interaction energies (IFIEs) between the N3 ligand and surrounding amino-acid residues for a thousand of dynamical structure samples, we have applied in this study a novel approach based on the principal component analysis (PCA) and the singular value decomposition (SVD) to the analysis of IFIE data in order to extract the dynamically cooperative interactions between the ligand and residues. We have found that the relative importance of each residue is modified via the structural fluctuations and that the ligand is bound in the pharmacophore in a dynamical manner through collective interactions formed by multiple residues, thus providing a new insight into structure-based drug discovery
The Relation Between Ejection Mechanism and Ion Abundance in the Electric Double Layer of Drops
Authors: Kwan Victor , O'Dwyer Ryan , Laur David , Tan Jiahua , Consta Styliani
Published: February 2021

The composition of outer drop layers has been associated with distinct chemical reactivity. We use atomistic modeling to examine how the composition of the surface excess charge layer (SECL) is related to the ejection mechanisms of ions. Even though the drop disintegration is inherently a non-equilibrium process we find that the equilibrium ion distribution in SECL predicts the ions that are ejected. The escape of the ions in aqueous drops takes place from conical protrusions that are global drop deformations and their appearance is independent of the location of a single ion. Our results agree with the equilibrium partition model, which associates the mass spectrum with the distribution of analytes in the drop’s double electric layer. We present evidence that atomistic simulations of minute nano-drops cannot distinguish Rayleigh fission from the ion evaporation mechanism.
Improved Photodegradation of Anionic Dyes Using a Complex Graphitic Carbon Nitride and Iron-Based Metal-Organic Framework Material
Authors: Doan Huan , Nguyen Hoa Thi , Ting Valeska , Guan Shaoliang , Eloi Jean-Charles , Hall Simon R. , Pham Xuan Nui
Published: February 2021

Introducing heterostructure to graphitic carbon nitrides (g-C3N4) can improve the activity of visible-light-driven catalysts for efficient treatment of multiple toxic pollutants in water. Here we report for the first time that a complex material can be constructed from an oxygen-doped g-C3N4 and MIL-53(Fe) metal-organic framework using a facile hydrothermal synthesis and recycled polyethylene terephthalate from plastic waste. The novel multi-walled nanotube structure of the O-g-C3N4/MIL-53(Fe) composite which enables unique interfacial charge transfer at the heterojunction showed an obvious enhancement in separation efficiency of the photochemical electron-hole pairs. This resulted in narrow bandgap energy (2.30 eV compared to 2.55 eV in O-g-C3N4), high photocurrent intensity (0.17 mA cm-2 compared to 0.12 mA cm-2 and 0.09 mA cm-2 in MIL-53(Fe) and O-g-C3N4, respectively), and excellent catalytic performance in the photodegradation of anionic azo dyes (95% RR 195 and 99% RY 145 degraded after 4 h, and only a minor change in the efficiency observed after four consecutive tests). These results demonstrate the development of new catalysts made from waste feedstocks that show high stability, ease of fabrication and can operate in natural light for environmental remediation.
Demystifying signal processing techniques to extract resting-state EEG features for psychologists
Authors: Li Zhenjiang , Zhang Libo , Zhang Fengrui , Gu Ruolei , Peng Weiwei , Hu Li
Published: February 2021

Electroencephalography (EEG) is a powerful tool for investigating the brain bases of human psychological processes non‐invasively. Some important mental functions could be encoded by resting‐state EEG activity; that is, the intrinsic neural activity not elicited by a specific task or stimulus. The extraction of informative features from resting‐state EEG requires complex signal processing techniques. This review aims to demystify the widely used resting‐state EEG signal processing techniques. To this end, we first offer a preprocessing pipeline and discuss how to apply it to resting‐state EEG preprocessing. We then examine in detail spectral, connectivity, and microstate analysis, covering the oft‐used EEG measures, practical issues involved, and data visualization. Finally, we briefly touch upon advanced techniques like nonlinear neural dynamics, complex networks, and machine learning.
New Zealand Public Service Response to Covid-19
Authors: Cameron Hannah
Published: February 2021

The New Zealand public service faced an unprecedented challenge in 2020. The focus of this article is on what the Covid-19 experience can tell us about the strengths of the public service, and whether the course that we have set for the future, enshrined through the Public Service Act 2020, is the right one. The established directions of public service change helped the Covid response: functional leadership made a definite contribution; dispersed leadership roles proved their worth; the deepening experience of inter-agency collaboration over the past decade cannot be proved to have contributed, but it seems reasonable to conclude that it did. Public servants proved willing to behave as participants in a single service rather than employees of a single agency, living up to the more complete view of human motivation reflected in the Public Service Act. The article concludes with some observations on the importance of interoperability for the future public service, and on the implications the strong Mäori response to Covid-19 may have for the public service of the future.
Late Quaternary Climate Variability and Change from Aotearoa New Zealand Speleothems: Progress in Age Modelling, Oxygen Isotope Master Record Construction and Proxy-Model Comparisons
Authors: Lorrey Andrew M , Williams Paul W , Woolley John-Mark , Fauchereau Nicolas C , Hartland Adam , Bostock Helen , Eaves Shaun , Lachniet Matthew S , Renwick James , Varma Vidya
Published: February 2021

We re-evaluated speleothem isotope series from Aotearoa New Zealand that were recently contributed to the Speleothem Isotopes Synthesis and AnaLysis (SISAL) database. COnstructing Proxy Records from Age Models (COPRA) software was used to produce Bayesian age models for those speleothems. The new age modelling helped us examine Late Quaternary temporal coverage for the national speleothem network, and also supported our exploration of three different isotope master record generation techniques using Holocene δ18O data from Waitomo. We then applied the output from one of the isotope master record techniques to test an application case of how climate transfer functions can be developed using climate model simulated temperatures. Our results suggest Holocene δ18O trends at Waitomo capture air temperature variations weighted toward the primary season of soil moisture (and epikarst) recharge during winter. This interpretation is consistent with the latest monitoring data from the Waitomo region. Holocene δ18O millennial-scale trends and centennial-scale variability at Waitomo likely reflect atmospheric circulation patterns that concomitantly vary with surface water temperature and the isotopic composition of the Tasman Sea. A climate model simulation context for the Holocene millennial-scale trends in the Waitomo δ18O isotope master record suggest that site is sensitive to changes in the subtropical front (STF) and the Tasman Front. Our comparison of isotope master record techniques using Waitomo δ18O data indicate that caution is needed prior to merging δ18O data series from different caves in order to avoid time series artefacts. Future work should incorporate more high-resolution cave monitoring and climate calibration studies, and develop new speleothem data from northern and eastern regions of the country.
Glacial geomorphology of the Ahuriri River valley, central Southern Alps, New Zealand
Authors: Tielidze Levan , Eaves Shaun , Norton Kevin , Mackintosh Andrew N
Published: February 2021

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A Capital Custom: Victoria and the New Zealand Legal Tradition
Authors: McLay Geoffrey
Published: February 2021

This is the revised text of Geoff McLay's inaugural lecture given in the Council Chamber at Victoria University of Wellington on 7 June 2011. In the lecture, Professor McLay examines three defining themes of the New Zealand legal tradition and Victoria's contribution to it: (1) that New Zealand has been, and will continue to be a small place, but linked to a much wider legal world; (2) that the divide between public law and private law is both profoundly important, and at the same time, an illusion; and (3) that New Zealand academic lawyers have sometimes held an unnecessarily narrow view of what counts as law, and that particular legal academics might cast their attention a little wider. The lecture itself can be viewed at .