bluuebunny/crossref_metadata_2025 huggingface dataset:
Comparative Analysis of Different Designs of Triple Tube Heat Exchangers on the Basis of their Performances
Authors: Gautam Vivek Kumar , Sagar Prof. NK
Published: March 2022

Cooling, warming, and air-conditioning systems, electric utilities, chemical based processing structures, food industry, automotive vehicle radiators, and waste heat recovery units are all examples of heat exchanger implementations. Heat exchangers in power plants include air preliminary heaters, economizers, evaporators, super-heaters, condensing systems, and cooling towers. Theoretical and simulation fluid dynamics assessments of varying patterns of a concentric TTHEX were conducted in this study with the intent of enhancing thermal efficiency.
Review on Heat Exchangers with Different Geometries and Flow Arrangement
Authors: Gautam Vivek Kumar , Sagar Prof. NK
Published: March 2022

A heat exchanger is a device that enables heat from one fluid (liquid or gas) to be transferred to some other fluid (liquid or gas) without the two fluids mixing or coming into direct contact. The various sorts of fluid flows in different types of heat exchanging systems are discussed in this paper.Heat exchangers can be found in a variety of locations, generally working to warm up or cool buildings or to improve the efficiency of engines and machineries. Refrigerators and air conditioners, for example, use heat exchangers in the opposite way that central heating systems do: they remove heat from a chamber or room that isn't needed and pump it away in a fluid to another location that can be dropped out of the way. The refrigerating fluid is completely enclosed within a series of channels, so it never comes into direct contact with the air: it extracts heat energy from the air inside and dumps it in the air outside, but it never mixes with it.
Gojenie rogówki w wybranych rodzajach zabiegów laserowej korekcji wady wzroku
Authors: Wierzbowska Joanna , Czarnota-Nowakowska Barbara
Published: March 2022

Gojenie się rogówki po zabiegach laserowej korekcji wad wzroku jest istotnym czynnikiem wpływającym na ich skuteczność i profil bezpieczeństwa. W artykule przedstawiono główne mechanizmy gojenia się rogówki po najczęściej przeprowadzanych metodach laserowej korekcji wad wzroku i podkreślono różnice w biologii procesów naprawczych między zabiegami powierzchniowymi a stromalnymi.
Antibiotic therapy of bacterial conjunctivitis – a practical approach
Authors: Prost Marek
Published: March 2022

The most common cause of ophthalmological consultations in an ophthalmological clinics are conjunctivitis, often caused by bacteria. The main form of its treatment is topical antibiotic therapy. The paper presents the current possibilities of treatment of conjunctivitis, with particular emphasis on the problem of development of the antibiotic resistance and the practical principles of antibiotic therapy. In the light of current knowledge, the best results in the treatment of bacterial conjunctivitis are achieved by the use of IV- and then III-generation of fluoroquinolones. These drugs have the best spectrum of action, and additionally, they have a very good penetration into the conjunctiva and are at the lowest risk of developing antibiotic resistance.
características dos emancipados no 1º Tabelionato de Notas e Protesto de Títulos da cidade de Canoinhas-SC entre 1970 até 2020
Authors: Lima Robert Tomaz de , Borguezan Danielly
Published: March 2022

O presente artigo resulta de pesquisa cujo objetivo foi investigar as características dos emancipados no Cartório de Notas de Canoinhas-SC entre o período de 1970 até 2020. Utilizou-se para a pesquisa aportes documentais, históricos e bibliográficos, bem como metodologias exploratórias, considerando os dados in loco do 1º Tabelionato de Notas e Protesto de Títulos da cidade de Canoinhas -SC. Realizou-se, a comparação entre o Código Civil de 1916 e 2002 e no que tange as alterações legais referente as emancipações extrajudiciais. Para complementar o objetivo principal, a pesquisa bibliográfica buscou apresentar a quantidade de emancipados e qual é o gênero mais predominante. Justifica-se dessa forma o estudo pelo fato de não haver pesquisas, sobretudo de campo, com dados relacionados às emancipações extrajudiciais no período destacado. Com o aumento das participações das mulheres na sociedade, percebe-se que houve um crescimento gradativo do gênero feminino nas emancipações, junto com a quantidade de emancipações feitas no passar dos anos. A primeira seção visa comparar os Códigos Civis de 1916 e 2002, identificando as mudanças e apresentando a extrema diferença entre ambos. A segunda seção tem como objetivo expor as formas de capacidade e incapacidade. Na terceira seção apresenta as formas de emancipação, responsabilidade dos pais perante o emancipado e finalizando com a exposição dos dados recolhidos do 1º Tabelionato de Notas e Protesto de Títulos da Cidade de Canoinhas-SC.
valoração do dano extrapatrimonial frente às particularidades do caso concreto
Authors: Polaski Bárbara , Wechinewsky Patricia Minini
Published: March 2022

O presente estudo visa discorrer acerca da utilização de uma metodologia para efetuar a valoração do dano extrapatrimonial. Para tanto, busca responder ao seguinte questionamento: Em que medida é possível utilizar um método específico para valorar o dano moral no judiciário brasileiro, tendo em vista a dificuldade de fixação de critérios objetivos para o seu arbitramento? A técnica de pesquisa utilizada foi a documental descritiva com análise de doutrina, legislação e jurisprudência brasileira, com abordagem qualitativa. O método de pesquisa é o dialético, pelo qual se busca, através de investigações da realidade jurídica brasileira, um estudo das decisões dos tribunais superiores, e a consequência destas, tendo em vista que os fatos não podem ser considerados fora de um contexto social, analisando contradições que se transcendem e buscam soluções. Desse modo destaca-se como objetivo geral analisar os meios de valoração do dano moral no judiciário brasileiro e como objetivos específicos, apresentar conceitos-chave para o presente estudo, tais como dano moral, dano presumido e responsabilidade civil, discutir julgados recentes dos tribunais superiores brasileiros, discorrer acerca do caráter punitivo da reparação, de modo que não ocorra enriquecimento ilícito da parte a ser reparada e expor os métodos existentes para quantificação do dano extrapatrimonial, citando as benesses e pontos negativos. Como conclusão destaca-se que é crucial uma metodologia para a determinação de critérios, objetivos e subjetivos, com propósito de alcançar o âmago do instituto do dano moral, efetuando a reparação daquele lesado, conjuntamente com a punição do ofensor, de modo que, a despeito de haver critérios sistematizados, haja uma ponderação das peculiaridades do caso concreto, de modo que haja, ainda, uma discricionaridade por parte do togado.
(in)falibilidade do reconhecimento de pessoas sob a ótica das falsas memórias
Authors: Vaz Eduarda Ferreira , Taporosky Filho Paulo Silas
Published: March 2022

O presente artigo trata do reconhecimento de pessoas como espécie de prova no processo penal e a possível problemática gerada pelo fenômeno das falsas memórias. Para isto, serão analisados os meios probatórios, os quais são de suma importância, pois têm o condão de influenciar no convencimento do magistrado, por esta razão, há no ordenamento jurídico brasileiro um capítulo específico para as provas, compreendendo os artigos 155 ao 250, do Código de Processo Penal. Entre as diversas modalidades de provas admitidas, este artigo visa uma em específico, o reconhecimento de pessoas. Dito isso, o objetivo do estudo é compreender a mente humana e a forma que as falsas memórias influenciam na prova testemunhal do processo penal, através de pesquisa em livros doutrinários, artigos, revistas especializadas e periódicos, caracterizando uma pesquisa exploratória, qualitativa, de revisão bibliográfica.
The AI516 and AI523 antibodies recognize the Klebsiella pneumoniae KpGe strain by flow cytometry
Authors: Crespo-Yanez Xenia , Ayadi Imen
Published: March 2022

The recombinant antibodies AE516 and AI523 bind to the surface of the Klebsiella pneumoniae KpGe strain, as detected by flow cytometry. They do not bind to a K. pneumoniae strain defective in O-antigen synthesis.
Elective ovariohysterectomy or castration can proceed in shelter dogs despite mild to moderate presurgical leukocytosis
Authors: Lai Poyu , KuKanich Kate S. , Springer Nora L.
Published: March 2022

OBJECTIVE

To determine whether shelter dogs presenting for elective ovariohysterectomy or castration have leukocytosis, whether leukocytes are associated with age and infection, and whether leukocytosis precludes progression to surgery.

ANIMALS

138 dogs (from 13 regional shelters) presented for ovariohysterectomy or castration between October 7 and December 6, 2019.

PROCEDURES

For this prospective study, each dog underwent presurgical physical examination, CBC, and tests for Dirofilaria immitis antigen and Anaplasma phagocytophilum, Borrelia burgdorferi, and Ehrlichia canis antibodies, with additional tests performed as needed. Dogs were aged by dentition as juvenile (< 3 or ≥ 3 to ≤ 6 months) or adult (> 6 months). Leukogram results were compared across age groups with recognized infections and parasitism and with dogs’ progression to surgery.

RESULTS

There were 34 dogs < 3 months old, 22 dogs ≥ 3 to ≤ 6 months old, and 82 > 6 months old. Sixty-three of 138 (45.6%) dogs had leukocytosis (median, 16,500 cells/µL; range, 13,700 to 28,300 cells/µL). Dogs < 3 months of age had higher median leukocyte and lymphocyte counts (14,550 cells/µL and 3,700 cells/µL, respectively) than dogs > 6 months of age (12,500 cells/µL and 2,400 cells/µL, respectively). Only 1 dog had a stress leukogram. Forty-seven dogs had recognized infection, but there was no association with leukocytosis. Surgery proceeded successfully for all dogs with leukocytosis.

CLINICAL RELEVANCE

Mild to moderate leukocytosis is common before elective surgery in shelter dogs, but surgery can proceed safely. A CBC should be reserved for ill-appearing dogs rather than as a screening test, and age-specific reference intervals should be considered.
ESTIMATING THE IMPACT OF SOCIAL AND ECONOMIC FACTORS ON INCOME INEQUALITY IN INDONESIA
Authors: Setyadi Sugeng , Indriyani Lili , Resmawati Reska Tri
Published: March 2022

The motivation of this research comes from United Nations Sustainable Development Goals (UN-SDGs) and their impacts by 2030. The UN highlighted 17 SDGs that address relevant local and global issues, one of which is the 10th SDG goal of reducing inequality. This study aims to determine the effect of the Human Development Index, GDP per capita, foreign investment, national investment and average years of schooling on income inequality in Indonesia during the period 2010 to 2020. This study uses panel data regression analysis, with research data that obtained from publications provided by Central Bureau of Statistics. The results showed that the Human Development Index variable and Mean Years of Schooling negative and significant effect on income inequality. This shows that the Human Development Index and mean years of schooling can reduce income inequality in Indonesia.
Pessimistic Strategy in Negative Politeness Study in Thor: Ragnarok Movie
Authors: Listyari Ni Luh Putu , Aryani I Gusti Agung Istri , Malini Ni Luh Nyoman Seri
Published: March 2022

Good communication is the basis of a good relationship. In achieving the appropriate goals, responses, and reciprocities of speech, people tend to apply the value of decency. The pessimistic strategy of negative politeness is analyzed in this study. The data  used in this study is taken from the Thor: Ragnarok Movie. This study analyzes the type of pessimistic strategy of negative politeness, such as negative, subjunctive, and remote-possibility makers. Besides, this study analyzed the factors that influence the character who used the pessimistic strategy. Factors are relative force, social distance, and level of imposition. The analysis of types and factors is based on the courtesy theory of Brown and Levinson's book "Politeness Some Universals in Language Usage" (1987). The result showed that all of the three types of pessimistic strategy in negative politeness is found in Thor: Ragnarok Movie.  The negative was found in the use of tag questions.  The subjunctive could be found in the use of the would, should,  and the use of the IF  clause. The  remote-possibility makers was found in the use of word hope, supposed, though, and perhaps.  The most type pessimistic strategy found in this data is the use of the subjunctive and the most factor which influences the characters is the size of imposition.
The Lexical Ambiguity in News Headlines of the Jakarta Post
Authors: Saputri Ni Komang Desey Trisna Dewi , Suastra I Made , Sumaryana Putra I Komang
Published: March 2022

The title of this study is “Lexical Ambiguity in News Headlines of The Jakarta Post”. This study deals with lexical ambiguity and its factors. This study aims to identify the lexical ambiguity and analyze the factors of lexical ambiguity. The data was taken from The Jakarta Post’s articles that were published throughout 2019-2021. The documentation method and the note-taking technique were used in collecting the data. The data was analyzed by using the theory of lexical ambiguity proposed by Ullmann (1967). The results of the study showed that there are four words found as lexical ambiguity and two factors of lexical ambiguity, namely polysemy and homonymy. The words ‘flood’ and ‘ghosting’ are classified as homonymy, and the words ‘promise’ and ‘curfew’ are classified as polysemy.
Struktur dan Makna Tarian Yosakoi
Authors: Khairunnisa Yussy Talitha , Rahayu Ely Triasih , Kadafi Muammar
Published: March 2022

The purpose of this study was to determine the structure and meaning of movements contained in the yosakoi dance. The yosakoi dance is a traditional dance that was first introduced in 1954 in Kochi prefecture. The kochi yosakoi dance was first performed in a summer festival, with the basic dance was called seicho. Seicho yosakoi is danced with the yosakoi naruko odori song and uses a musical instrument called naruko. Besides at Kochi prefecture, yosakoi also has expanded to the Hokkaido area. Yosakoi dance in Hokkaido is known as yosakoi soran. Yosakoi soran was first created by Hasegawa Gaku in 1992. Different from kochi yosakoi, yosakoi soran was first introduced with the traditional song soran bushi. The type of this study was descriptive qualitative. The data source of this study was the movement of yosakoi dancers, namely the Iroha and Yuujou Taiko groups. The method of this study used literature study, observation and interview. The data analysis technique was conducted by analyzing the movement structure and meaning of the seicho and soran bushi dances based on the semiotic concept of Roland Barthes. The results of this study showed that there were 5 movement structures in the seicho yosakoi dance that contained connotative meanings, and there were 14 movement structures in the soran bushi dance. The conclusion from the structure and meaning of these two dances are that they only have connotative meanings.  In the seicho dance, it contains the meaning of an invitation for people to come and have fun during the summer at the yosakoi festival. While in soran bushi, this dance has the meaning of describing how fishermen go to sea to catch fish.
Makna Mitos Pada Karakter Hewan Dalam Film Mononoke Hime
Authors: Anindita Rizka , Triasih Rahayu Ely , Puspitasari Diana
Published: March 2022

The objective of this study was to describe the meaning contained in the animal characters in the Mononoke Hime movie and then correlated it to Japanese folklore. Type of this study was descriptive qualitative. The data collection technique used was the note taking technique. The researcher watched the Mononoke Hime movie and recorded dialogues related to the study theme. The data analysis technique was conducted by analyzing the dialogues in the Mononoke Hime movie related to the meaning of animals based on Ronald Barthes' semiotic concept. The results of this study showed that there were 4 animal characters that contained mythical meanings based on the analysis of the Mononoke Hime movie and the Youkai reference book. The results of this study showed 4 animals found in the data source, namely deer, wolf, boar and monkey. Each animal had the following characters; The God of deer had the meaning of regulator of living things’s lives in the forest, the god of wolf and the god of boar had the meaning of protecting the forest, and the god of monkey had the meaning of fertility by caring for the god of deer’s forest.
CHICKEN EGGS MARKETING CHANNELS IN KALEDUPA ISLAND, WAKATOBI REGENCY
Authors: ARSAD SANI LA ODE , AKA RAHIM , MUH. MUNADI LAODE , . ANSARUDDIN
Published: March 2022

This study aims to determine the marketing channels of broiler eggs on Kaledupa Island, Wakatobi Regency by analyzing marketing channels and marketing margins of broiler eggs with the research sample being all traders of purebred chicken eggs in the Sampuawatu market and the Buranga market, Kaledupa district as many as 13 traders analyzed descriptively. The results of the analysis show that there are 755 racks of purebred eggs every month and 345 racks from outside the market, which are imported every 1.100 shelves on the Bau-bau-Kaledupa route, 720 shelves, and the Wanci-Kaledupa route, with 380 shelves. The marketing channels for broiler chicken eggs on Kale- dupa Island are (1) Bau-bau traders - final consumers, (2) Bau-bau traders - collector traders - final consumers, (3) Bau-bau traders - retail traders - final consumers, (4) Bau-bau traders - collector traders - retailers-end consumers, (5) Bau-bau traders-Wanci traders-end consumers, (6) Bau-bau traders-Wanci traders-collectors-end consumers, (7) Bau-bau traders-Wanci traders-retailers-end consumers, and (8) Bau-bau traders Wanci traders-collector tra- ders-retailers-end consumers. The efficient marketing margin of broiler eggs in Kaledupa District is IDR 2.250/rack and the less efficient is IDR 9.250/rack.
PANELIST RESPONSE OF PASTEURIZED FRESH MILK FORTIFIED EXTRACT YELLOW SWEET POTATO
Authors: S. W. WITAWAN , LINDAWATI S. A. , MIWADA I N. S.
Published: March 2022

This study aims to determine the response of the panelists after pasteurization of fresh cow’s milk fortified with yellow sweet potato extract through sensory testing. The research was conducted from June to August 2020 at the Laboratory of Animal Product Technology and Microbiology, Faculty of Animal Husbandry, Udayana University. The experimental design used was a Complete RandomIzed Design (RAL) with four treatments and four repeats namely fortification of 0% yellow sweet potato extract (P0), fortification of 5% yellow sweet potato extract (P1), fortification of 10% yellow sweet potato extract (P2), fortification of 15% yellow sweet potato extract (P3). These variables observed included color, aroma, taste, viscosity, overall acceptance, and pH. The results of the research on pH test and panelist responses to taste, viscosity, and overall acceptance of fresh cow’s milk fortified with yellow sweet potato in each treatment showed no significant differences (P>0.05) but the color and aroma showed signifi- cant differences (P<0.05). The conclusion of this study is that the response of the panelists to fresh post-pasteurized cow’s milk fortified with yellow sweet potato extract gives a yellowish color and sweet potato aroma. Panelists gave a favorable response to fresh post-pasteurized cow’s milk fortified with 5% yellow sweet potato extract and a pH value according to Indonesian National Standard (SNI).
ANTIMICROBIAL ACTIVITY OF COW’S MILK YOGURT INCUBATED WITH LIGHT GREEN COCONUT SHELL (Cocos nucifera L. var. viridis Hassk.) AGAINST PATHOGENIC BACTERIA
Authors: D. C. SAPUTRA , LINDAWATI S. A. , PUTRA I G. A. A.
Published: March 2022

This study aims to find out the antimicrobial activity of cow’s milk yogurt incubated with a light green coconut shell (Cocos nucifera L. var. viridis Hassk.) against pathogenic bacteria. The experimental design is Completely Randomized Design (CRD) with three treatments and five repeats. The three treatments are: cow’s milk incubated with a jar or control container (P0), cow’s milk incubated with a light green coconut shell without coconut flesh (P1), and cow’s milk incubated with a light green coconut shell containing coconut flesh (P2). The observed variables are antimicrobial activity against pathogenic microbes (Escerichia coli and Staphylococus aureus), total tertitration acid and total lactic acid bacteria. The results showed that the antimicrobial activity of yogurt against Escerichia coli in all treatments (P2, P1, and P0) was obtained with a range of 5.67-5.87 mm statistically no noticeable difference (P>0.05). While against Staphylococus aureus obtained in the range of 6.27-6.46 mm in the treatment of P2 and P1 differ markedly (P<0.05) statistically compared to P0, followed by total titrated acid, and lactic acid bacteria in all treatments (P2, P1, and P0) showed no significant differences (P>0.05) each ranging from 1.62-1.68 %; and 6.6x104-1.4x107 CFU/g. The conclusions of this study showed that the antimicrobial activity of cow’s milk yogurt incubated with a light green coconut shell (Cocos nucifera L. var. viridis Hassk.) against pathogenic bacteria has broad-spectrum antimicrobial activity.
New data on the trace element composition and Lu-Hf isotopic system of zircons from the Early Cambrian granites of the Ufaley block (Middle Urals): a step to the correction of geodynamic concepts
Authors: Shardakova G. Yu.
Published: March 2022

Research subject. Composition and isotopic parameters of zircons and their host granites of the Bitim complex, localised in the eastern part of the Ufaley block (Middle Urals).Materials and methods. The determination of trace element composition and Lu-Hf isotope system in zircons was carried out by LA-ICP-MS (the “Geoanalitik” shared research facilities of the IGG UB RAS, Ekaterinburg).Results and conclusions. The images and geochemical features of the main zircon population from granites confirm their magmatic genesis and minimal alteration, which proves previously defined Vendian- Cambrian (520 ± 9 Ma) age for the granites. Younger zircons (401–459 Ma) differing in composition from the older ones, were formed during subsequent tectonic-thermal activity, possibly under the fluid action. The mixed mantle-crustal nature of substrate for the granite melting is indicated by specific isotopic parameters (87Sr/86Sr = 0.703389, εHf(t)aver = +6.3) and a number of characteristic ratios for zircons and granites. The geodynamic concepts of the granite formation settings of the Bitim complex are corrected: in the Vendian–Early Cambrian, a transform-type margin has developed in this sector, the divergent movements on which have been accompanied by a break in the continuity of the crust and the intrusion of a deep mantle diapir; the participation of the slab substance in the magma generation might also be assumed.Conclusions. The results obtained can be used for the geological mapping and correction of a general geodynamic scheme for the junction zone between the Ural Mobile Belt and the East European platform.
Compensation projects priority assessment by various population groups in the Arctic industrial development
Authors: Potravnaya E. V. , Krivoshapkina O. A.
Published: March 2022

The article is devoted to the issues of taking into account of the population’s opinion in the implementation of the Arctic industrial development projects. Evaluation methods and selection procedures for compensation projects have been proposed, as well as their ranking is made. On the example of a project for the placer diamonds extraction at the Molodo River deposit in the Bulunsky district of the Sakha Republic (Yakutia), and based sociological surveys of the population, projects aimed at preserving the ancestral habitat of indigenous small-numbered peoples of the North, supporting traditional crafts, building infrastructure facilities taking into account the individual groups opinions of the population, are proposed. The article is based on the materials of the ethnological expertise of this project and the results of the authors’sociological research. The proposals for the selection of compensation projects for the local population in the conditions of evaluation criteria plurality are formulated.
Beyond strain release: Delocalisation-enabled organic reactivity
Authors: Sterling Alistair , Smith Russell , Anderson Edward , Duarte Fernanda
Published: March 2022

The release of strain energy is a fundamental driving force for organic reactions. However, strain release alone is an insufficient predictor of reactivity, as seen in the equivalent strain energies but disparate reactivity of cyclopropane and cyclobutane. Here we show that bond delocalisation is a key factor that operates alongside strain release to boost and even dominate reactivity, significantly lowering the energy required for bond-breaking in cyclopropanes and cycloalkynes. Thermodynamic and delocalisation parameters explain the relative reaction rates of molecules containing these functional groups, leading to a ‘rule-of-thumb’ that accurately predicts activation barriers. These principles are demonstrated in the context of the reactions of strained building blocks commonly encountered in organic synthesis, medicinal chemistry, polymer science and bioconjugation. By introducing delocalisation as a means to control reactivity profiles, these findings will transform the use of strain as a design concept in synthesis.
NMR snapshots of nascent chains emerging from the ribosome during biosynthesis
Authors: Chan Sammy HS , Waudby Christopher A , Christodoulou John
Published: March 2022

NMR spectroscopy is a powerful tool to study the dynamic process of how proteins acquire their biological fold at near-atomic resolution. Advances in spectroscopic and biochemical approaches have now expanded the ability of NMR methods to probe increasingly larger biological machinery including the 2.4-MDa 70S E. coli ribosome, where polypeptide chains are assembled. Detailed structures of the ribosome have been determined by X-ray crystallography and cryo-electron microscopy studies that describe the rigid ribosomal core and exit tunnel that the nascent chain must pass during its biosynthesis. However, most folding occurs when the nascent chain has emerged beyond the exit tunnel and it is here where NMR spectroscopy is uniquely able to provide high-resolution structural insights into on its co-translational folding. In this review, we will discuss recent progress in NMR studies of ribosome-bound nascent chain complexes, highlighting the emerging role of the ribosome and how these results are shaping our understanding of co-translational protein folding in the cell.
Enantioselective Synthesis of Versatile Stereogenic-at-P(V) Building Blocks via Hydrogen-Bond-Donor Catalysis
Authors: Forbes Katherine , Jacobsen Eric
Published: March 2022

The stereoselective synthesis of molecules bearing stereogenic phosphorus(V) centers represents an enduring challenge in organic chemistry. While stereospecific nucleophilic substitution at P(V) provides a general strategy for elaborating optically active P(V) compounds, existing methods for accessing the requisite chiral building blocks rely almost entirely on diastereocontrol using chiral auxiliaries. Catalytic, enantioselective methods for the synthesis of synthetically versatile stereogenic P(V) building blocks offer an alternative approach to stereogenic-at-P(V) targets without requiring stoichiometric quantities of chiral controlling elements. Herein, we report an enantioselective hydrogen-bond-donor-catalyzed synthesis of chlorophosphonamidates, and the development of these products as versatile chiral P(V) building blocks. We demonstrate that chlorophosphonamidates possess two leaving groups that can be displaced sequentially and stereospecifically to access a wide variety of stereogenic-at-P(V) compounds featuring diverse substitution patterns.
Defining the Temperature of an Isolated Molecule
Authors: BARBATTI Mario
Published: March 2022

The microcanonical temperature of an isolated molecule is derived in terms of Boltzmann and Gibbs volume entropies within the quantum harmonic vibrational approximation. The effects of the entropy functional choice and various approximations are examined. The difference between Boltzmann and Gibbs volume temperatures is negligible for molecules as small as ten atoms. However, it is significant for smaller systems, opening a way to probe them experimentally. A simple, analytical expression of the temperature as a function of the vibrational energy is provided, allowing predictions with a 3% margin of error. The microcanonical temperature is discussed and exemplified with polycyclic aromatic hydrocarbon molecules and other molecules of astrophysical interest.
Tension-Induced Phase Transformation and Anomalous Poisson Effect in Violet Phosphorene
Authors: Ying Penghua , Li Xiaowen , Qiang Xiaobin , Du Yao , Zhang Jin , Chen Lang , Zhong Zheng
Published: March 2022

Two-dimensional violet phosphorene (VP) nanosheets are promising semiconductor materials with unique cross structures distinct from those of their allotropes such as black phosphorene and blue phosphorene, but their mechanical behaviors remain almost unexplored. By using the first-principles calculations, in this paper we investigate the mechanical behaviors of monolayer, bilayer, and bulk VP under uniaxial tension. A phase transformation from the open-pore phase to closed-pore phase is observed in VP structures when under a specific tensile strain. It is revealed that the phase transformation is attributed to the competition between the rotation and elongation of sub-nano rods in VP structures during the loading process. Due to the phase transformation, the in-plane Poissons ratio of monolayer VP can become greater than 1.2, while the bulk VP possesses a negative out-of-plane Poissons ratio with a magnitude up to -0.3 at a certain strain. These results indicate that Poisson effects in VP are superior to those in any other existing two-dimensional materials. In addition, based on the tensor analysis of elastic constants, a strong mechanical anisotropy is observed in VP structures both before and after the phase transformation. Besides the mechanical properties, the band gap of all VP structures decreases as the applied tensile strain increases, which can eventually transform into the metallic state prior to their fracture. The combination of unique phase transformation, anomalous Poisson effect, strong mechanical anisotropy and tunable electronic properties render VP be a novel nanoscale metamaterial with multifunctional applications.
Y2Te3: A New n-type Thermoelectric Material
Authors: Toriyama Michael Y. , Cheikh Dean , Bux Sabah K. , Snyder G. Jeffrey , Gorai Prashun
Published: March 2022

Rare-earth chalcogenides Re3-xCh4 (Re = La, Pr, Nd, Ch = S, Se, Te) have been extensively studied as high-temperature thermoelectric (TE) materials owing to their low lattice thermal conductivity (kL) and tunable electron carrier concentration via cation vacancies. In this work, we introduce Y2Te3, a rare-earth chalcogenide with a rocksalt-like vacancy-ordered structure, as a promising n-type TE material. We computationally evaluate the intrinsic transport properties, optimized TE performance, and doping characteristics of Y2Te3. We find that Y2Te3 exhibits low kL in agreement with previous experiments. Combined with a large conduction band (CB) degeneracy, Y2Te3 has a high n-type TE quality factor. Interestingly, our electronic structure calculations reveal the presence of multiple low-lying conduction band valleys, which opens opportunities for further improvement of TE performance through band convergence. We use defect calculations to show that Y2Te3 is n-type dopable under Y-rich growth conditions, which suppresses the formation of acceptor-like cation vacancies. Furthermore, we propose that degenerate n-type doping can be achieved with halogens (Cl, Br, I), with I being the most effective dopant. Our computational results as well as experimental results reported elsewhere make the case for further optimization of Y2Te3 as a n-type TE material.
PRÁTICAS E FORMAÇÕES DE PROFESSORES DE MATEMÁTICA NO ENSINO REMOTO
Authors: FREITAS CLÁUDIO LOPES DE , CUNHA DÉBORA ALFAIA DA , Manfredo Elizabeth Cardoso Gerhardt
Published: March 2022

O contexto pandêmico da covid-19 tornou-se um momento oportuno ao debate da formação tecnológica de professores e da prática de ensinar em ambientes virtuais. Assim, o objetivo do estudo foi evidenciar aspectos do aprender e ensinar e do letramento digital de professores que ensinaram matemática na Educação Básica, durante o ensino remoto emergencial. Este artigo caracteriza-se como uma pesquisa exploratória, com amostragem por conveniência e não-probabilística, seguindo uma abordagem mista, com dados qualitativos e quantitativos. A coleta de dados consistiu na aplicação de questionários digitais, voltada para professores de matemática que realizaram atividades de ensino remoto, no ano letivo de 2020 e em parte de 2021. Obteve-se repostas de 70 docentes. Os resultados evidenciam o uso de diversas estratégias pelos docentes para enfrentar as exigências do ensino remoto, bem como investimentos próprios para aquisição de equipamentos. O baixo letramento digital da maioria dos professores foi enfrentado com procura autônoma de qualificação e adesão aos pacotes das grandes empresas de tecnologia, frisando-se a ausência das secretarias e das instituições de ensino na formação para as aulas remotas. Conclui-se que o ensino remoto de matemática foi, muitas vezes, um desafio solitário do professor, ao arcar com ônus financeiros e formativos para obtenção de algum êxito. Apesar dos esforços individuais, o letramento digital docente ainda se impõe como pauta política a ser enfrentada no pós-pandemia.
Diffusion Evolved: New Musical Interfaces Applied to Diffusion Performance
Authors:   , Dougherty Johnson, Bridget
Published: March 2022

This exegesis takes a critical look at the performance paradigm of sound diffusion. In making a shift away from the sixty-year-old practice of performing on a mixing desk or other fader bank console, it proposes and outlines a goal towards intuitive and transparent relationships between performance gesture and spatial trajectories. This is achieved by a coupling of the two previously segmented fields within electroacoustic: spatialisation and interface design. This research explains how connections between the two fields and an embracing of contemporary technological developments, with a goal toward increasing the liveness and gestural input that currently limit sound diffusion practice, could extend the art form into a virtuosic and compelling gestural performance art. The exegesis introduces and describes the author’s research and development of tactile space, a new multitouch tool developed on the Bricktable for live sound diffusion. tactile.space is intended as a contribution to the growing research area of user interfaces developed specifically for the performance of sound in space. It affords performers a new level of gestural interaction with the space of the concert hall and the audience members and redefines multiple standardised interactions between the performer and the space, the gesture, the audience, and the sound in a diffusion concert.
Analisa Orientasi Arah dan Fraksi Volume Serat terhadap Kekuatan Geser dan Tarik Material Komposit Berpenguat Serat Batang Pisang Abaka
Authors: Martijanti Martijanti
Published: March 2022

Material komposit merupakan suatu gabungan dua unsur, yaitu serat (fiber)dan matriks. Serat yang digunakan material komposit pada penelitian ini adalah serat yang berasal dari alam yaitu serat pisang abaka dan matriks yang digunakan epoxy.

Permasalahan pada penelitian ini difokuskan untuk mengetahui sejauh mana orientasi arah serat terhadap sifat mekanik dari material komposit. Metode yang digunakan eksperimental dengan proses Hand Lay-Up. Dengan melakukan serangkaian pengujian yang meliputi uji tarik dan uji geser, sedangkan parameter yang diambil adalah variasi dari fraksi volume serat 10Yo, 15yo dan 20yo dengan arah serat dua arah dan juga arah acak. Dari hasil data pengujian, diperoleh kesimpulan bahwa semakin tinggi fraksi volume serat, maka kekuatan tarik dan gesernya akan semakin meningkat. Pada orientasi serat arah Random kekuatannya lebih rendah dibandingkan dengan orientasi serat dua arah karena kekuatan tidak terpusat pada dua arah melainkan seragam pada segala arah. Adanya distribusi yang tidak merata karena adanya void atau cacat sehingga keuletannya rendah.
Kajian Awal Pemanfaatan Sekam Padi Menjadi Karbon Aktif
Authors: Hendriyana Hendriyana
Published: March 2022

Produksi padi akan menghasilkan limbah yang disebut sekam. Dari sekitar 100 kg tanaman padi kering hanya diperoleh beras 28,9 kg beras dengan 55,6 kg jerami dan 8,9 kilogram sekam serta 3,6 kg bekatul. Limbah sekam hingga sampai saat ini perlu dicari cara pemanfaatannya agar lebih bernilai ekonomis. Salah satu pemanfaatan sekam padi yang dapat dilakukan adalah dengan membuat sekam padi menjadi karbon aktif yang dapat digunakan sebagai bahan penyerap pada pengolahan air baku atau limbah cair industri agar limbah tersebut nantinya dinyatakan aman ketika dibuang ke lingkungan. Pembuatan karbon aktif dari sekam padi ini dilakukan melalui beberapa tahap. Tahap pertama dilakukan prosess karbonisasi pada suhu 400oC â€”600oC. Setelah proses karbonisasi, dilakukan pengecilan ukuran karbon untuk memperluas permukaan karbon. Tahap selanjutnya adalah proses aktivasi, di mana zat aktivator yang digunakan pada penelitian kali ini adalah kalium hidroksida dan asam fosfat dengan variasi konsentrasi 3M dan 9M. Proses aktivasi dilakukan pada temperatur 50oC dan 100oC selama 2 jam. Dari hasil penelitian didapatkan luas permukaan paling besar 130,31 mg/g dengan kondisi operasi aktivasi 50oC dengan menggunakan activator KOH.
Penjadwalan Perbaikan Pompa Sump Pit dengan Metoda Pert Di PT. Taka Turbomachinery Indonesia
Authors: Wahyudin Cucu , Yosy Yosy
Published: March 2022

Taka Turbomachinery Indonesia merupakan perusahaan swasta nasional yang bergerak dalam bidang Turbomachinery eguipment service seperti perbaikan pompa, perbaikan turbin dan perbaikan kompresor. Salah satu jenis pompa yang diperbaiki oleh PT. Taka adalah pompa sump pit yang digunakan oleh perusahaan BUMN perminyakan. Pompa sump pit adalah pompa yang digunakan untuk menangani fluida yang kotor seperti air hujan, cooling water dan drain dari proses area (disebut juga limbah cair) yang berpotensi mengakibatkan pencemaran lingkungan dari pit (bak) yang dipompakan ke unit netralizing. Di unit netralizing ini limbah cair tadi dinetralisasi oleh bakteri ke /agoon, dan baru dilepas ke laut. Limbah cair yang dilepas ke laut ini sudah tidak berbahaya dan tidak mencemarkan lingkungan.

Tidak adanya urutan pengerjaan dan identifikasi dari aktivitas-aktivitas perbaikan pompa yang jelas mengakibatkan pekerjaan seringkali terhambat dan tingkat keterlambatan pengiriman pompa sump pit diperkirakan sebesar 35% dari jumlah pompa yang diperbaiki. Penelitian ini berusaha untuk melakukan evaluasi terhadap metoda perbaikan yang dilakukan sehingga dapat memperjelas aktivitas-aktivitas yang terjadi serta sekaligus dapat mengestimasi waktu pengerjaannya. Penelitian ini

menerapkan konsep manajemen proyek dalam menyelesaian perbaikan pompa sump pit. Penjadwalan dilakukan dengan metoda PERT sehingga diperoleh lintasan kritisnya. Penelitian ini menerapkan prinsip-prinsip manajemen proyek dalam penyelesaian pekerjaan perbaikan pompa sump pit, sehingga dapat diketahui performansi perbaikan pompa sump pit dengan metoda lama dan dengan manajemen proyek.
Исследование катализаторов Pt/Ce-Mn-Ox реакции низкотемпературного окисления CO
Authors: Стадниченко А.И. , Симаненко А.А. , Славинская Е.М. , Федорова Е.А. , Стонкус О.А. , Романенко А.В. , Боронин А.И.
Published: March 2022

В работе исследовалась возможность получения низотемпературной активности катализаторов на основе платины. Катализаторы состава Pt/Ce1–xMnxO2–δ синтезировали в два этапа: получали носители Ce1–xMnxO2–δ с различным содержанием марганца (10—30 ат.%) методом соосаждения, затем готовили итоговые катализаторы методом пропитки нитратом платины. Установлено, что введение марганца в состав носителя позволяет снизить загрузку платины до необходимой при реализации аномального низкотемпературного окисления СО при Т < 0 °C.
Pandemi Covid 19: Implementasi Insentif Pajak Bagi Wajib Pajak UMKM di Kabupaten Sumenep Belum Optimal
Authors: Putri Fauziah Nirmala , Faisol Moh.
Published: March 2022

This research aims to identify and explain the implementation of the Minister of Finance regulation number 09/PMK.03/2021 regarding tax incentives for UMKM taxpayers affected by the 2019 coronavirus disease pandemic in Sumenep Regency in 2021. This study uses a qualitative descriptive approach with a case study method. Researchers conducted in-depth interviews (in-depth interviews) with two informants from the DJP and five informants of UMKM actors and were supported by the results of observations and documentation. The research data were analysed using Miller and Huberman qualitative data analysis, namely reduction, data presentation, conclusion, and data verification. The results show that the implementation of tax incentives in the Sumenep Regency is still not effective. This is because several UMKM that the researcher met claimed to have not taken advantage of, and did not even know about, the government having borne final income tax (DTP) incentives for UMKM taxpayers. This is because the socialization carried out by the DGT has not been received by the UMKM owners. After all, socialization is carried out through social media or posters and banners, and SMS because of PPKM. The hope is that the community is given direct socialization and even personally to each UMKM, however, this is understandable because the provision of these incentives coincides with the Covid-19 pandemic, in PPKM conditions. This research implies that direct socialization activities to UMKM, which are laypeople, are more informative and effective than through social media or online.
MENGHUBUNGKAN CSR RATING, KINERJA PERUSAHAAN DAN NILAI PERUSAHAAN
Authors: Hidayat Imam Nur , Maulana Ilham , Andriani Nurita
Published: March 2022

Abstract : This research revolves around the effect of company performance, CSR rating on company value by using companies listed on the IDX in 2019, the sample was selected using the purposive sampling method, and got a total of 35 companies as the sample used in the test. The variables used in this study include CSR Rating, Return On Assets and Net Profit Margin as indicators of company performance, Tobin's Q and Price to Book Value as indicators of firm value. SEM-PLS was used as a test tool using WarpPLS 7.0. The variables in this study are transformed formatively into latent variables. The result is that the company's performance has a significant positive effect on firm value, the CSR rating has a positive, weakly significance, and the CSR rating can positively moderate the relationship between company performance and firm value.
Cover Belakang
Authors: JAK Editor
Published: March 2022

Cover Belakang
Pemberdayaan Masyarakat Desa Mujur Kecamatan Praya Timur Melalui Pemanfaatan dan Pelatihan dalam Mengolah Sampah Plastik Menjadi Kerajinan Tangan
Authors: M. Hasan Murdani  , Nadilla Yasmiadi  , Yuliatin  , Dadi Setiadi
Published: March 2022

Sampah di Desa Mujur merupakan salah satu masalah yang belum terselesaikan hingga saat ini. Kurangnya kesadaran masyarakat tentang pengelolaan sampah mengakibatkan pencemaran dan kerusakan lingkungan, khususnya pada pengolahan limbah sampah plastik. Untuk itu pentingnya pengadaan penyuluhan pemanfaatan limbah sampah dan pelatihan pembuatan kerajinan tangan dengan menggunakan sampah plastik. KKN Terpadu Unram mengusung program pemanfaatan daur ulang sampah plastik agar dapat digunakan kembali atau diolah menjadi barang yang bermanfaat bagi lingkungan sekitar.   Tujuan dari program ini adalah memberdayakan masyarakat Desa Mujur dalam pengolahan sampah menjadi kerajinan tangan menggunakan sampah plastik. Metode yang digunakan berupa pelatihan yang lebih berbasis pada praktik langsung, sosialisasi dan pembimbingan yang sifatnya monitoring. Hasil menunjukan bahwakegiatan tersebut dapat mengurangi limbah plastik dan juga dapat mengasah kreativitas masyarakat Desa Mujur saat mengisi waktu luang dirumah.
Kikuchi’s disease (KD); mimicking malignant lymphoma: A rare cause of cervical lymphadenopathy.
Authors: Ihsan Ullah  , Muhammad Khizar Hayat  , Sanaullah Khan  , Nazish Khan  , Chaand Bibi  , Maham Rehman
Published: March 2022

Objective: The aim of this study is to present six cases of cervical lymphadenopathy, diagnosed as Kikuchi’s disease and raise the index of suspicion for this disease. Study Design: Case Series. Setting: Histopathology and Otolaryngology/Head & Neck Surgery Department at Rehman Medical Institute (RMI) Peshawar. Period: July 2016 to March 2021. Material & Methods: Records of patients for cases diagnosed as “histiocytic necrotising lymphadenitis” were retrieved, their corresponding patient files accessed from the archive, and case notes analyzed. Results: In this series, a total of six cases of Kikuchi’s disease are presented. A female predominance is evident from the present data (2:1 female to male ratio). All patients presented with palpable lymph nodes in the neck, predominantly on the left (66.7%). Majority (66.7%) presented with neuralgic pain (on/off). Only one patient did not show weight loss and night sweating, the remaining had all the symptoms. All of the patients recovered spontaneously within 6 months (range 2 to 6 months) with symptomatic treatment for neuralgic pain. Conclusion: Kikuchi’s disease should be kept in the differential diagnosis in young females with persistent neck masses, palpable lymph nodes and suspicious fine needle aspiration cytology (FNAC).
Paradigmi epici, ovvero della volontà degli eroi
Authors: Camerotto Alberto
Published: March 2022

Heroes are the first paradeigmata, for everyone, even for philosophers. Their most important virtue is tlemosyne, i.e. the ability to choose and resist in the face of dangers and difficulties. But the will has some more problems. Heroes have to deal with the
gods and with Fate, that is, with the Moirai and their own destiny. Heracles, the greatest
of all heroes, performs the well known labours in the service of Eurystheus, by the will of
the gods. Aegisthus, Clytemestra’s lover and Agamemnon’s killer, is the negative model:
he indeed chose what he wanted, but then he becomes the model of hybris. Agamemnon
is the commander-in-chief of the Achaeans. But in the events of the war, he reveals all
his errors of inadequate will. Achilles, the strongest warrior of the Trojan War, chooses
between life and death and then regrets his choice when it is too late. Odysseus, the hero
of metis, is perhaps the only one who knows how to choose the paths of the will. Certainly,
with many risks and suffering. But this is the virtue of tlemosyne.