bluuebunny/crossref_metadata_2025 huggingface dataset:
Caracterização química e de compostos bioativos da Goji berry (Lycium barbarum) desidratada
Authors: Silva Izabelle , Oliveira Pabline , Silva Isadora , Santiago Marianne , Asquieri Eduardo , Sousa Milena
Published: February 2022

As frutas vermelhas por possuírem elevada atividade antioxidante, são destaque entre alimentos inseridos em uma dieta saudável, dentre essa classificação de frutas, está a Goji berry. Ela possui compostos antioxidantes, fenólicos, polissacarídeos e vitaminas que desempenham uma variedade de efeitos benéficos ao organismo humano. O presente estudo objetivou caracterizar a composição química e os compostos bioativos da Goji berry (Lycium barbarum) desidratada. A amostra foi obtida através do comercio local do município de Mineiros – Goiás, foram realizadas análises pH, Acidez titulável total, umidade, cinzas, lipídeos, Flavonoides, compostos fenólicos, carotenoids e de macro e micro minerais dos quais o ferro apresentou- se com maior concentração. A obtenção de dados científicas da composição da Goji berry contribui para melhor conhecimento de suas propriedades nutricionais, que contribuem para possível aplicação na indústria alimentícia e farmacêutica.
A inclusão de deficientes auditivos na Ensino Superior: Direito, acessibilidade e avaliação
Authors: Silva Fabio Jose Antonio , Marques Ronualdo Marques
Published: February 2022

A deficiência auditiva ou surdez é uma das principais deficiências físicas encontradas na população mundial e no Brasil. Diante da perspectiva inclusiva, tem havido, desde algumas décadas, maior observância com relação a normas, diretrizes e políticas públicas para inclusão em ambiente escolar, principalmente na educação superior que visa garantir também a inclusão profissional e no mercado de trabalho, melhorando aspectos como acessibilidade e avaliação nesse contexto. Com a justificativa da necessidade de pôr em evidência o direito à inclusão escolar de deficientes auditivos no ensino superior, assim como a acessibilidade promovida e o processo avaliativo, o estudo tem por objetivo analisar e destacar essa temática correlacionada. Para tal utilizou-se de pesquisa bibliográfica exploratória e descritiva, de caráter qualitativo. A pesquisa foi realizada em meio virtual, em bases de dados confiáveis, com artigos científicos publicados e inclui também ambientes virtuais de estudos e pesquisas em Direito para embasamento teórico assim como em Leis e na Constituição Federal da República, Decretos. Foi realizada uma leitura analítica e destacados dos aspectos principais. Foi elaborada a produção textual em três títulos que se correlacionam: Surdez, preconceito, educação e inserção; Do Direito dos portadores de deficiências auditivas ou surdez; e Acessibilidade e avaliação. O autor expressou suas impressões assim como as conclusões nas Considerações Finais.
Análise comparativa da percepção da população sobre o diagnóstico clínico e o diagnóstico psicológico.
Authors: Gonçalves da Silva Fernanda , Bastos da Fonseca Pâmela Cristine dos Santos , Silva Cíntia Cassimiro da , Fernandes Ana Carolina Carmo , Corrêa Beatriz da Cunha , Silva Marcos Vinicius O. da , Santos Vitória do Nascimento , Santos Carla Cristina Braga
Published: February 2022

O Psicodiagnóstico é uma avaliação psicológica realizada com objetivos clínicos, a fim de identificar a presença ou não de critérios diagnósticos de psicopatologias nos indivíduos. A avaliação psicológica clínica possui um papel fundamental na prevenção e promoção de saúde mental. O presente artigo analisou a correlação do temor da população a respeito do psicodiagnóstico comparado com o temor do diagnóstico de patologias médicas. Foi realizada uma pesquisa transversal e exploratória, onde através de um formulário online, os dados foram coletados por mídias sociais no período de dezembro de 2020 a maio de 2021. Os resultados apontaram para um maior temor da população a respeito do diagnóstico médico, visto que 58,8% consideraram o diagnóstico médico mais grave, e 41,2% julgam o diagnóstico psicológico como sendo o mais grave. Concluindo pode-se analisar que o sofrimento psíquico ainda é constantemente encarado como algo menos relevante, tratado por vezes à base somente de medicação em razão do saber presente no discurso médico e no imediatismo, o que interfere diretamente nessa percepção de maior temor. É proposto que maiores pesquisas analisem outras variáveis que interferem nessa percepção para inferências que auxiliem nesse contexto.
Ensino Remoto Emergencial de música no contexto da pandemia de Covid-19: Significações de professores
Authors: Tavares Lucas Leme , Reis Leandro Augusto dos
Published: February 2022

Com o advento da pandemia da Covid-19 e as condições por ela impostas, as Tecnologias Digitais da Informação e Comunicação (TDIC) passam a ser utilizadas como a ferramenta educacional necessária para a continuação das aulas de música em tempos de distanciamento físico. Tais ações educacionais foram classificadas como Ensino Remoto Emergencial – ERE. Neste cenário, surgem alguns desafios para o ensino de música, uma vez que as ferramentas digitais utilizadas no ERE apresentam alguns problemas como latência, fidelidade sonora e sincronização – aspectos importantes para as práticas musicais. Assim como em uma sinfonia, em três movimentos, este artigo se propõe a discutir o ERE no contexto da educação musical e a importância da tomada de consciência do processo pedagógico por parte do professor. No primeiro movimento, trata-se do conceito de ERE por meio de revisão de literatura. Já no segundo movimento, busca-se na teoria piagetiana a compreensão da construção de significação do sujeito em suas especificidades, no processo de apreensão de si mesmo e do mundo, dos modos de construí-lo e transformá-lo, em uma relação entre objetivação e subjetivação. E, por fim, no terceiro movimento, apresenta-se uma experiência empírica em andamento. Espera-se que, a partir das reflexões a serem realizadas, ampliem-se as possibilidades para pensar os processos de ensino e aprendizagem de música em diferentes contextos e para além deste contexto de excepcionalidades.
“O que promove a escolha das mulheres pelos long-acting reversible contraceptives: uma scoping review”
Authors: Palma Sara , Presado Maria helena presado , Ayres-de-Campos Diogo
Published: February 2022

Problemática: As mulheres, passam a maior parte da sua vida fértil a evitar a gravidez. Em alguns países, 65% das mulheres têm uma gravidez indesejada que resulta de falhas, de uso incorreto ou descontinuado dos contracetivos. Os profissionais de saúde são responsáveis pelo aconselhamento contracetivo, indispensável na orientação das mulheres. Objetivos: Conhecer os fatores que promovem as escolhas das mulheres pelos Long-Acting Reversible Contraceptives. Métodos: Scoping Review, realizada entre 10 e 12 de novembro de 2021, segundo as orientações do Joanna Briggs Institute, com a questão de pesquisa: Quais os fatores que promovem as escolhas das mulheres pelos Long-Acting Reversible Contraceptives? Resultados: Elegíveis seis estudos, publicados entre 2017 e 2019. Conclusão: Os programas de aconselhamento contracetivo que incluem aconselhamento por um profissional de saúde, suporte financeiro dos custos dos Long-Acting Reversible Contraceptives, podem reduzir a percentagem da gravidez não desejada. Devem-se desenvolver intervenções centradas na mulher.
Lasianthus oblongifolius Beddome (Rubiaceae): A critically endangered species recollected after a lapse of 140 years in Tirunelveli District, Tamil Nadu
Authors: Rajakumar T.J.S. , Selvakumari R. , Murugesan S. , Chellaperumal N.
Published: February 2022

Lasianthus oblongifolius Beddome (Rubiaceae) is a critically endangered species of Tirunelveli hills (Southern Western Ghats), Tamil Nadu, India. It was recollected after a lapse of 140 years from Thavakadu in Mekkarai forests, Tirunelveli District, Tami Nadu.
THE INFLUENCE OF PRODUCT QUALITY, PROMOTION AND DESIGN ON THE PURCHASE DECISION OF YAMAHA MIO MOTOR VEHICLES
Authors: Purwanto Purwanto
Published: February 2022

A person's buying behavior towards a product is influenced by many factors. Each individual has different desires and tastes. Product quality is a very influential factor in purchasing decisions, besides that there are many other factors that influence the buying behavior. This study aims to analyze the effect of product quality, promotion and design on purchasing decisions for Yamaha Mio motorcycle products and analyze the variables that have the most dominant influence on purchasing decisions for Yamaha Mio motorcycle products in the community in the Surakarta area. From the results of the classical assumption analysis, the normality test with the Kolmogorov-Smirnov obtained is significantly greater than 0.05, which means that the data distribution is normal. Multicollinearity test obtained VIF and Tolerance values ​​that are close to one so that it can be concluded that the regression model has no multicollinearity problem, while the heteroscedasticity test using the Glejser method states that there is no problem. Based on the results of multiple linear regression analysis from the t test, it was found that partially product quality had a significant effect on purchasing decisions for Yamaha Mio motorcycle products, while promotion and design had a significant effect on the 5% level. From the results of the F test that simultaneously product quality, promotion and design have a significant effect on purchasing decisions for Yamaha Mio motorcycle products where the value of F count > F table. Product quality has the most dominant influence on purchasing decisions for Yamaha Mio motorcycle products. The R square value is 0.255,
Surface Wet Bulb Potential Temperatures in and Near India – Normal values and a Study In Disturbed Weather
Authors: MALURKAR S. L.
Published: February 2022

In the extra-tropical latitudes, it has become customary to identify air masses by the temperature and occasionally humidity characters of the air streams. Though in India various entities like Dry Bulb, Wet Bulb, Maximum and Minimum and their anomalies have been plotted, there has been no critical examination of some concept which could be used. The temperatures obtained by the Radio-sonde observations are still very short of the requirements in the tropics where the space gradient of quantities is small. Surface observations are available over many more stations and over a much longer period that comparisons would be easier. The quantity envisaged is the Wet bulb Potential Temperature introduced by Normand obtained by surface observations. The larger number of observations that are available partly offsets the effect of nearness to the ground.

Normal Wet Bulb Temperature charts for the twelve months are given. During a pre-monsoon cyclonic storm of 1930, the field over India has been plotted for a number of days. From the latter charts, an interpretation is made to reason differing air masses entering into the storm field. Incidentally, it is also shown that secondaries of western disturbances show off as disconnected pools of air which seem to move in some Northeasterly direction. It is suggested that if 24 hour changes in the quantity and plotted, it would help identification of air masses.

A simple analysis is given so that the derivation between Normand’s Wet Bulb Potential and Rossby’s Equivalent or Equivalent Potential Temperatures is brought out and a nomogram connection can be drawn.
Note on the mechanism of Nor’westers of Bengal.
Authors: Newton C.W.
Published: February 2022

Note on the mechanism of Nor’ westers of Bengal.
Physical Properties of the Upper Atmosphere over India
Authors: Koteswaram P
Published: February 2022

From available data from sounding balloon ascents and sound propagation expertmentas the height-temperature curve for Central lndia from ground up to 100 Km has been constructed. It is seen that the isothermal region which is found in the lower stratosphere over middle latitude does not exist over India and that temperature steadily in increases above the tropopause. This result is in agreement with Nazarek's conclusion from V-2 rocket soundings that the isothermal region does no t exist over New Mexico in the lower stratosphere. The vertical distribution of pressure, temperature and density for levels above 10 km are discussed. Mean monthly geoetrophic west wind components have been worked out for lat. 25°1 approximetely for levels between 10 km and 20 km and their varations are discussed. By comparison of Central Indian data with Central European data, west wind components during summer have been computed up to 100 km . The comparison indicates that the summer easterlies  over North India in the troposphere extend upto about 30 km with strong westerlies aloft.
Maximum dew-point temperature in India
Authors: Paramanik S.K. , Hariharan P.S.
Published: February 2022

The moisture content of an air mass over a station depends upon the dew-point at the station and the higher the dew-point, the higer is the moisture content of the air mass. A knowledge of the maximum possible dew-point at a place is thus necessary for estimating the maximum possible precipitation.
Micro-climatic survey of a Sugarcane field
Authors: Gadre K.M.
Published: February 2022

The distribution of temperature and vapour pressure inside a sugarcane field during its various growth stages has been studied. It has been observed that in the earliest stages of crop the climate of the sugarcane field differs little from that of the open. The changes from the open to the crop are most rapid across the rows. The climate of the matured sugarcane crop becomes more or less uniform at within a distance of three row widths from the border.
On the utility of correcting Barometric tendencies For normal diurnal variations for Forecasting in India
Authors: SEN S.N.
Published: February 2022

Forecasting offices in India are at present preparing a chart showing 24 hour pressure change and using the same to indicate pressure tendencies for forecasting purposes. As a period of 24 hours is rather too long to give a reliable indication of pressure changes that would follow, it is considered that a chart showing pressure changes during a shorter period corrected for normal diurnal variation would give a more reliable indication of the present tendencies. It has been shown that the corrected pressure changes since the last hour of observation from the corresponding value at the previous hour. This procedure automatically takes into account the diurnal correction, which is appropriate for the individual stations and also for the season or period under observation and thereby eliminates the error, which would otherwise come in using a mean correction for the diurnal variation.

The utility of such a chart is illustrated in the case of typical weather situation during week ending 3 October 1948. The inferences that could be drawn on the basis of the corrected pressure changes for shorter period and those on 24 hour pressure changes have been compared day to day with reference to actual development of weather during the period.
On certain aspects of rainfall at Cherrapunji
Authors: DAS J.C.
Published: February 2022

This paper contains the analysis of the hourly values of rainfall at Cherrapunji for the years 1946-1949. By comparison, it is shown that the early morning periods 0100 to 0700 IST are more rainy in comparison to the periods 1200 to 1800 IST  in the afternoon particularly during the more wet months April to October. It is explained that this preference of rainfall to the morning hours is to a large extent due to the increased frontal interaction of dry continental air from east or northeast with air from southwest to southeast having maritime characteristics.
A simplified model of Wood-Anderson Seismograph
Authors: TANDON A. N.
Published: February 2022

A demountable type of Torsion Seismograph based on the principle of the Torsion Seismograph of Wood and Anderson has been described. The model is easy to construct and gives satisfactory results for pendulum periods up to 6 seconds. A few records taken by the instrument are reproduced.
An Automatic Data editing and switching system
Authors: DAS S. K. , SUNDARAM K.
Published: February 2022

The paper describes an equipment developed for selection and switching of meteorological messages, from the trunk circuit to the subsidiary circuits. The equipment scans different characters present sin the designator of a message using World Meteorological format, by comparing the pulses in the characters of International alphabet 2 with the pulses generated in the equipment and filters data according to pre-determined programme.

The basic circuitry of the equipment comprises of a pulse generator or clock, a frequency divider, divider, a comparator and coincidence circuit, a pulse recogniser and a matrix to recognise the character identified.
Sodar studies of gravity waves in the planetary boundary layer at Delhi
Authors: AGGARWAL S. K. , SINGAL S. P. , SRIVASTAVA S. K.
Published: February 2022

Analysis of sodar echograms for a period of one year (May 19777-April 1978) shows that wavemotions, both simple and complex, occur in the planetary boundary layer at Delhi. The oscillations occur in the boundary layer under conditions of nocturnal radiation inversion, ascending inversion and frontal wind shear.

Auto correlation and power spectral density techniques of wave analysis have been applied to the observed wave motions to study their periodicity. The frequency spectra of the observed waves are reported. The time periods lying mostly within 1-15 Minutes suggest them to be atmospheric gravity waves originating due to the stable restoring force of the density gradients. Wave lengths and scale sizes of the observed waves have been calculated. The scale size of the waves has been found to be small.
Analysis of rainfall over Nasik district
Authors: MUKHERJEE A. K. , SHYAMALA B. , LAKSHMI S.
Published: February 2022

The study of rainfall patterns over Satara, Pune and Ahmednagar districts indicated a definite variation in the distribution of rainfall even within a district. Hence, an attempt has been made in this paper to study in detail the distribution of rainfall over Nasik district. The daily normal rainfall and daily actual rainfall have been analysed and it has been found that during the months of July and August the district can be distinctly differentiated into two regions which have different rainfall pattern. The comparative study of wind over Bombay in relation to increase in rainfall over the western talukas suggested that the strengthening of westerlies at 850 mb over Bombay cause increase in rainfall over the western part of the district while the rainfall distribution in the eastern part under similar conditions does not show any marked increase.
A study of runway temperature and screen temperature over Santacruz Airport
Authors: PRASAD M. C.
Published: February 2022

Variations in runway temperature affect air density over the runway and this affects the lift of an aircraft and its effective payload. Temperature measured by an electrical thermometer installed near the runway (indicated as R) has been found to vary with temperature measured by a thermometer placed in a Stevenson's screen (indicated as S) within a wide limit of +5. 9 deg. C to -4.0 deg. C. This study is based on observations at Santacruz airport and discusses the diurnal, seasonal and annual variations of (R-S). Causes of such variations have also been investigated.
A model of atmospheric tide with allowance for hourly variation of ozone density
Authors: GIWA F. B. A. , BABALOLA M. T.
Published: February 2022

By using a simplified form of the photochemistry in the ozonosphere, the diurnal variation of ozone density is simulated in the atmosphere, and the tide generated from the resulting absorption of solar radiation is calculated. It is shown that this tide differs significantly from that generated if a constant ozone density is assumed. In particular there is enchancement of the 24 hourly tide and a reduction of the 12 hourly tide.
A numerical model for flood routing
Authors: KATHURIA S. N.
Published: February 2022

The paper presents an attempt to develop a numerical model for flood routing. This has been done for the river Yamuna. Using an implicit difference scheme, we present results to show that the model predicts the discharge and time of arrival of the peak flood with reasonable accuracy.
A study of the air and sea surface temperatures over the Indian Ocean
Authors: ANJANEYULU T. S. S.
Published: February 2022

Several studies on the air and sea surface temperatures over Indian Ocean : particularly over west Arabian Sea have been reported (Verploegh 1960; Colon 1964; Bunker 1965; 1970, 1974; Shukla 1975, 1977).

The present paper is a study of the air and sea surface temperatures over the Arabian Sea and Bay of Bengal during the seven year period 1961 to 1967. Its purpose is to demarcate, with the recent date, Indian Ocean into separate zones each of a particular character with reference to the variation of the air and sea surface temperatures through the year as also the warmer than air-sea and colder than air-sea conditions during the southwest monsoon season. An attempt to examine the association of the anomalies of sea surface temperatures over the Arabian Sea to the variation in the activity of monsoon over India in the respective years has also been made.
Rajasthan flood as viewed by SAMIR onboard Bhaskara
Authors: PANDEY P. C.
Published: February 2022

Data from Satellite Microwave Radiometer (SAMIR) onboard India's second satellite Bhaskara have been analysed for orbit Nos. 473 (8 July 1979), 607 (17 July 1979) and 890 (5 August 1979). These data correspond to the pre and post flood period over Luni river basin in Rajasthan. The limited observations show the separability of dry land from flooded area using SAMIR.
Simulation of certain features of ITCZ over Indian sub-continent
Authors: SINHA P. C. , DATTA R. K.
Published: February 2022

This study is an attempt to simulate certain features of pre-onset phase of summer monsoon circulation. The simulation experiment is based on Primitive Equation Barotropic Model written in flux form. The significant forcings considered during the experiment are heat source and sink in the two hemispheres. The experiment generates flow pattern very similar to conceptual flow pattern of early June discussed by Sud and Datta (1979). The similarity of the flow pattern in the simulated and actual/conceptual flow pattern is interesting and is discussed in this paper.
On the analysis of Thermodynamic diagrams for Instability
Authors: CHOUDHURI S. N. RAY
Published: February 2022

In this paper a modified parcel method of analysis of tephigrams is discussed. The method takes account of the entrainment of environmental air by the cloud air and the integrated effect of lighting air parcels from all levels in the “layer of instability”. An attempt has also been made in the modified parcel method to take account of a few other factors, viz., freeing level and shear vector. Some worked out examples by the use of the modified parcel method have been examined for Indian conditions and it has been shown that a fair degree of success cab be obtained by this method, if judiciously applied.
Implementasi Manajemen Humas dalam Meningkatkan Mutu Madrasah
Authors: Supriani Yuli
Published: February 2022

Penelitian ini menjelaskan tentang kajian terhadap implementasi manajemen humas dalam meningkatkan mutu madrasah. Metode yang digunakan dalam kajian ini menggunakan metode atau pendekatan kepustakaan (library research), bahwa studi pustaka atau kepustakaan dapat diartikan sebagai serangkaian kegiatan yang berkenaan dengan metode pengumpulan data pustaka, membaca dan mencatat serta mengolah bahan penelitian. Hasil penelitian ini menunjukkan bahwa humas merupakan segenap kegiatan dan teknik/kiat yang digunakan organisasi atau individu untuk menciptakan atau memelihara suatu sikap dan tanggapan yang baik dari pihak luar terhadap keberadaan dan aktivitasnya, dalam penelitian ini akan dibahas tentang fungsi manajemen humas, perencanaan manajemen humas, tujuan humas di lembaga, tugas pokok humas, pelaksanaan humas di lembaga pendidikan, dan mutu madrasah. Manajemen hubungan sekolah dengan masyarakat merupakan seluruh proses kegiatan yang direncanakan dan diusahakan secara sengaja dan bersungguh-sungguh, disertai pembinaan secara berkelanjutan untuk mendapatkan simpati dari masyarakat pada umumnya, dan khususnya masyarakat yang berkepentingan langsung dengan sekolah. Simpati masyarakat akan tumbuh melalui upaya-upaya sekolah dalam menjalin hubungan secara intensif dan proaktif di samping membangun citra lembaga yang baik.
Covid-19 Morbidity amongst Covishield Vaccinated Vs Non-Vaccinated: A Comparative Study
Authors: Yadav Vikas , Kumar Poninder , Kushal Arvind , Yadav Renu , Anjali Priya
Published: February 2022

Introduction: Covid-19 pandemic is further spreading its leg in India. Indigenous Covishield vaccination drive was started to protect people from the disease.

Objective: This observational cross sectional study was conducted to assess the morbidity and mortality pattern amongst Covishield vaccinated people Vs non-vaccinated patients of covid19.

Methodology: This observation study was conducted in a dedicated covid-19 hospital. All RTPCR covid-19 patients were included. The data on vaccination against covid-19 amongst the patients was obtained, and analysed using statistical software.

Results: The study population comprised of 155 cases of confirmed covid-19 patients of which 24 (15.48%) were fully vaccinated, however 41 (26.45%) and 90 (58.06%) were partially and non-vaccinated respectively. Fully vaccinated people were protected from development of severe form of disease (X2=9.57, d.f=2, p=0.0083). Mortality was significantly less amongst vaccinated group (X2=4.83, d.f=1, p= 0.028).

Conclusion: Patients who are completely vaccinated with Covishield vaccine are protected from development of severe form of diseases and deaths and hence mass vaccination of Indian population to overcome the pandemic is required at the earliest.
Exploring the Pathway towards Depression among Working Married Women – A Qualitative Study Done In Urban Area of Kancheepuram District, Tamil Nadu
Authors: Ramesh Keerthana , R Umadevi , VM Anandhaeashwar , RJ Charulatha , V Nithya
Published: February 2022

Introduction: Globally, around 264 million people suffer from depression according to World Health Organization (WHO). As per the National Mental Health Survey (NMHS), in the year 2015-2016, one in 20 people over the age of 18 years have ever had depression in India amounting to 45 million persons with depression in the year 2015. This study aimed to find out the self-perceived reasons of depression among married working women residing in an urban area of Kancheepuram district, Tamil Nadu. 

Methodology: This is a qualitative study done on married working urban women above 18 years of age visiting an UHTC of a private medical college at Anakaputhur. Patient Health Questionnaire (PHQ-9) was used to assess whether they have depression. Data was collected by in-depth interviews, and it was recorded and transcribed verbatim.

Results: Based on the responses obtained from the participants the following themes and subthemes are formed like Workplace factors, Factors related to family, social factors and Mental Health seeking behaviour. Among the workplace factors job satisfaction, long working hours and relationship with peers were common reasons elicited.

Conclusion: Most of these problems could be overcome only if the society changes their mentality about women and practice gender equality and social justice.
Acción del agua y la temperatura ambiental extrema sobre pavimento flexible
Authors: Rojas Carrizales Alfredo , Torres Gonzales Yovana , Parejas Garavito Miguel , Hinojosa Benavides Rene
Published: February 2022

Para el diseño de pavimentos flexibles se han incluido variables climáticas, pues se ha demostrado que es un factor que incide en el comportamiento estructural de las carreteras; siendo necesario incluir el efecto climático en el diseño de estructuras de pavimentos; en este sentido, el objetivo de esta investigación bibliográfica es mostrar que el nafteno, principal componente del asfalto, sufre los efectos climáticos del agua y la temperatura ambiental, al mismo tiempo, tiene una relación directa con el deterioro de la superficie flexible; sin embargo, existen métodos de prueba para el envejecimiento del asfalto, que intentan reproducir el efecto del agua y la temperatura ambiental sobre la mezcla de asfalto, con el fin de acelerar el proceso de envejecimiento del aglomerante. La inyección de oxígeno sobre el asfalto en caliente, genera mayor cantidad de asfaltenos en detrimento de los maltenos, provocando mayor resistencia ante temperaturas elevadas, variando las iniciales condiciones reológicas del asfalto. Las pruebas para el proceso de envejecimiento del asfalto por oxidación, permiten conocer la modificación de las propiedades físicas del asfalto, con el fin de mejorar su resistencia y adherencia en condiciones climáticas extremas, en el uso de pavimentos flexibles.
Sistema de seguimiento de egresados de la Facultad de Ingeniería Electrónica - Sistemas de la Universidad Nacional de Huancavelica, sede Pampas
Authors: Huayta Meza Freddy Toribio , Pachecho Moscoso Luis Enrique , Aquino Sinche Noemi
Published: February 2022

La implementación de un “Sistema de Seguimiento de Egresados” en la Facultad de Ingeniería Electrónica - Sistemas de la Universidad Nacional de Huancavelica – Sede Pampas, tuvo como objetivo desarrollar e implementar un sistema automatizado de seguimiento de egresados a fin de que se pueda conocer su ubicación e inserción en el mercado laboral, su formación continua (Ley Universitaria N° 30220 Art. 46), la vinculación con la empresas y el aporte que los graduados puedan ofrecer a la facultad en la mejora de su oferta en la carrera profesional. La investigación fue del tipo descriptivo y la muestra es no probabilística por que, a través de los correos electrónicos de los egresados se envió los cuestionarios para estos fuesen rellenados voluntariamente y enviados al correo institucional. Para el procesamiento de datos se utilizó el programa Statistical Package for the Social Sciences (SPSS), Para el desarrollo del Sistema de Seguimiento de Egresados se empleó la metodología Extreme Programming (XP) que es la metodología más destacada de los procesos ágiles de desarrollo de software, para la programación Appeon Power Builder 2017, y para el modelamiento del sistema el Unified Modeling Language (UML). El Sistema, permite registrar y mantener actualizado sus datos personales y académicos, modalidad de trabajo (independiente/dependiente), datos de las empresas empleadoras, nivel de satisfacción de los empleadores para con los egresados. Así mismo, permitirá analizar la información obtenida y tomar decisiones en cuanto a la oferta académica de la Facultad de Ingeniería Electrónica - Sistemas. Para la evaluación del sistema se utilizó el System Usability Scale (SUS) cuyo resultado promedio fue de 71.6, y se encuentra dentro del rango de "Bueno", que significa que el usuario encuentra satisfacción en el empleo del sistema, pudiéndose realizar algunas mejoras.
refuerzo escolar como estrategia para el logro de aprendizaje en resolución de problemas en estudiantes educación secundaria
Authors: Chacon Briceño Danny Michell , Chachi Montes Lizardo , Anglas Urdanegui Zósimo David , Ramirez Avila Max José
Published: February 2022

El refuerzo escolar como estrategia para el logro de aprendizaje en resolución de problemas, es una investigación que tuvo como objetivo: Determinar la influencia de la estrategia refuerzo escolar en el aprendizaje de resolución de problemas matemáticos en estudiantes del primer grado de educación secundaria del colegio Praxis, que corresponde a una investigación aplicada denominada también constructiva o utilitaria, con diseño pre experimental de un solo grupo, con una muestra de 24 estudiantes desarrollada en la institución privada Praxis.

En la que se aplicó la estrategia de Refuerzo escolar como un conjunto de procesos para alcanzar metas de logros de aprendizaje traducidos en competencias matemáticas de resolución de problemas como: Plantea y resuelve problemas con cantidades y magnitudes, regularidades, de forma, movimiento y localización de cuerpos y de incertidumbre

Cuya investigación vertió las siguientes conclusiones: La estrategia de refuerzo escolar mejora significativamente el aprendizaje en resolución de problemas en estudiantes del 1er grado de educación secundaria del colegio PRAXIS ya que el valor de la Tc (t de student calculada) es de 5,2049, mayor que el valor de la Tt (t teórica) que es de 2,069 con un margen de error  igual a 0.05 o 5%.
The Development of Digital Finance and Financing Constraints of Small and Medium-sized Enterprises
Authors: Chen Yihan , Wei Kaiwen , Wang Ruiyao
Published: February 2022

As a part of the national economy, Small and Medium-sized enterprises play a role in promoting a country's economy, but most studies show that financing constraints hinder the innovation and development of small and Medium-sized enterprises. This paper analyzed the effect of descriptive statistics, robustness test, and heterogeneity analysis to explore the impact of digital financial development on small and Medium-sized enterprises' financing constraints. Research shows that with the increase of the digital finance index, financing constraint tends to decrease. Therefore, the development of digital finance plays a positive role in the financing constraints of small and Medium-sized enterprises.
Construction Evaluation of Three Outperformance Options
Authors: Wang Zibo
Published: February 2022

Locking the most promising company in a certain industry at an early stage is appealing for all investors, especially when the industry’s capacity and prospect can be confirmed. The article tries to create three different special options to help investors to achieve this goal. Specifically, the construction process is based on outperformance options, Black-Scholes model, and some special valuation methods. According to the calculation, the price and the power of each future options are demonstrated clearly. Investors can choose one of them to satisfy their requirement for investment return and preference for risk. Four factors related to the price of the future options are also assessed based on sensitive analysis, i.e., one can understand the internal structure of the future options clearly. However, the research is based on the hypothesis that only 2 companies exist in the industry and people can determine the future of the industry. Therefore, following research can focus on multi-companies’ industry and add more uncertain elements to make the results and process more general. These results shed light on eliminating the uncertainty of intra-industry competition, locking the industry leader early and increasing the investment return.
Infrastructure Connectivity and Enterprise Performance: Quasi-natural Experiment based on China Railway Express
Authors: Jia Ruifei
Published: February 2022

The Belt and Road initiatives (BRI) has promoted the trade exchanges between China and the countries along the route. The opening of the CHINA RAILWAY Express (CR express), its core achievement, has promoted the infrastructure connection between China and other countries, and has a profound impact on the development of Chinese enterprises. Under the profound adjustment of the current international investment and trade pattern and the rules of multilateral investment and trade, it is of great practical significance and theoretical value to study the impact of the opening of CR express on enterprise performance. Based on the micro data of 8,770 A-share manufacturing listed companies from 2009 to 2015, this paper constructs Differences-in-Differences model (DID) to investigate the impact of the launch of CR express on enterprise performance. The study found that the opening of CR expresses significantly improved enterprises performance. Moreover, with the increase of the distance between the spokes, the promoting effect is gradually weakened. This paper reveals the promotion and influencing mechanism of the opening of CR express on enterprise performance, which has some enlightening effect on the further research of CR express station planning and other issues.
Empirical Analysis of the Impact of Heterogeneous Aging Families on Consumption based on CFPS Data
Authors: Chen Yixuan
Published: February 2022

Aging families are divided into with higher education and without higher education, and their influence on consumption is also different due to differences in their respective income characteristics. Relevant data based on CFPS 2014, 2016, and 2018 were empirical analyzed, and the results show that: (1) Aging families and consumption levels are negatively correlated, while the negative impact of aging families with higher education is even smaller. (2) Aging families have a negative correlation with subsistence, enjoyment, and developmental consumption, and their negative impact on subsistence consumption is the smallest, followed by developmental consumption, and enjoyment consumption is the largest. The aging families with higher education have less negative influence on various types of consumption than the other one. (3) In terms of regional differences, compared with the central and western regions, aging families in the eastern region, especially those with higher education in the eastern region, have a smaller negative impact on consumption levels. Among them, the most inhibitory effect on subsistence consumption is aging families without higher education in the central and western regions, the most inhibitory effect on enjoyment consumption is the aging families without higher education in the eastern region, and the most inhibitory effect on developmental consumption is the aging families without higher education in the central and western regions.
Study on the Influence of Physicochemical Indexes on Wine Quality
Authors: Wang Simin , Jiang Siyuan
Published: February 2022

The quality of a wine is generally determined by hiring a group of qualified wine judges to taste the wine. The quality of wine grapes is directly related to the quality of wine. To explore how the physical and chemical indicators of wine and wine grapes can reflect the quality of wine and grape to a certain extent. This article is based on 2012 Chinese college students' mathematical contest in modeling A problem of data, to score as the dependent variable, wine physical and chemical indicators as independent variables, the method of using principal component analysis of physical and chemical indexes of wine grape dimension reduction, physical and chemical indexes selection of grapes, and use the decision tree regression method to establish score and wine function relation between the physical and chemical indicators. Then, after the comparison of the results of the four clustering algorithms, the hierarchical clustering method based on Agnes algorithm was used to conduct cluster analysis on the wines. Considering the rationality of classification, red and white wines were divided into four grades, and the average value of the estimated scores of each grade was used as the benchmark score for the wines of this grade.
Sino-Africa Cooperation under the Influence of the Belt and Road Initiative
Authors: Guo Xiaoyang , Jia Zixin , Liu Yaohua
Published: February 2022

The Belt and Road initiative is one of the most important parts of China’s overseas business strategy. The African region is also included in the Belt and Road initiative. This paper aims to study the important position of Africa in the Belt and Road strategy through the economic cooperation and project construction between China and Africa under the framework of the Belt and Road. China-Africa cooperation has a long history. Africa has many limitations in infrastructure but rich in natural resources. China’s strong manufacturing system can both make full use of natural resources from Africa and invest in African infrastructure. In recent years, China-Africa cooperation has been deepening and expanding in scale. The Belt and Road Initiative has brought win-win results to China and Africa. As China consumes excess capacity and realizes the goal of Chinese manufacturing going global, African countries have achieved economic development, improved infrastructure construction and stride toward industrialization.
Ecosystem Restoration, Conservation, and Diversity under Climate Response
Authors: Peng Xiaohui
Published: February 2022

The ecological crisis caused by climate change is a wake-up call for human survival and development. The answer is self-evident: do nothing or do something actively. Based on the problematic ecological situation, it is necessary to carry out scientific restoration and adequate protection of the ecosystem and firmly take the road of sustainable development on the basis of respecting the law of nature and protecting biodiversity. This work mainly discussed the issues of ecosystem restoration, protection, and biodiversity under climate response, exploring the current ecological crisis caused by climate change, and exploring the path of scientific ecosystem restoration and preservation to realize the harmony between man and nature.
Team diversity:Review and implications for future research
Authors: Lv Mengwei
Published: February 2022

Team diversity has been proved to be an important predictor of team performance. In recent years, there has been a gradual increase in the number of literature on team diversity. As there is no comprehensive review of team diversity so far, the domestic and foreign literature has been systematically reviewed so far in this study. By reviewing the literature, this study summarized the definition, classification, measurement and related research of team diversity, summarized the research frontiers of team diversity, and proposed prospects for future research directions.
The change of supply chain in the transformation of traditional retail enterprises to new retail enterprises: A case study of Chinese RT-Mart
Authors: Zhou Qunzhi , Wang Chuang , Wang Yihan
Published: February 2022

With the development of e-commerce industry and the arrival of the new retail era, traditional retail enterprises have to step into the field of e-commerce, change the sales model and redesign the complete new supply chain. This paper mainly introduces the market competition environment and internal reform pressure faced by traditional retail enterprises, taking Ruentex-Mart as an example, analyzes the advantages and problems of supply chain reform, and puts forward corresponding solutions for other traditional retail enterprises.
Optimal Investment Portfolio under Different Models with Various Constraints Especially Considers COVID-19 Period
Authors: Su Ziyi , Xu Chenyu , Zheng Yutong
Published: February 2022

The outbreak of COVID-19 at the end of 2019 had a severe impact on global economic markets, with the U.S. stock market experiencing four circuit breakers in one month. As of July 2021, the real GDP of the United States has significantly outpaced the growth rate of the world's advanced economies. In order to study how investors invest in the stock market after the U.S. stock market experience circuit breaker, this paper selects six stocks as the research object using the monthly closing prices from May, 2001 to May, 2021 as sample data, and calculates the optimal portfolio by Markowitz model and Index model. Through calculation and constraint of different conditions, we obtain the variance and Sharpe ratio of the six selected sample stocks under the two conditions of minimum variance portfolio and maximum Sharpe ratio portfolio respectively. In the portfolio based on Markowitz model and Index model, we can draw a conclusion that Procter & Gamble Co. accounts for a larger proportion under different constraints. Different constraints will also lead to different results. In most cases, a board index is included, and the optimization constraints brought by it can make the portfolio return under Markowitz model and Index model reach the maximum. If the constraints of FINRA regulation T are taken into account, the Sharpe ratio values can be higher.
Walt Disney and WarnerMedia: Lifelong Rivals or Future Partners?
Authors: Chen Xize , Fang Ziyi , Fu Xianchong
Published: February 2022

Walt Disney and Time Warner has been in a long-term rivalry in media industry. Despite the fact that Disney’s attempt to acquire Time Warner failed in 2016, it is still suspected that a conglomerate of Disney and Warner will emerge in the future. By taking a deep insight of companies’ business backgrounds and history of rivalry, the paper summarizes that whether this deal will happen remains inconclusive because of the potential resistance from the regulation institutions, AT&T and even the whole industry while it greatly benefits the two stakeholders, introducing an unprecedented, creative force to the industry. We also further infer the potential business strategies applied by Disney once it owns WarnerMedia. Using Porter’s Five Forces Analysis, we conclude that the combined enterprise will have to necessarily sacrifice some established styles, while they retain high customer loyalty, relatively threatening substitutes and high entrance barrier.
The Case Analysis of Disney with Scarlett Johansson Litigation
Authors: Ye Xiaoyuan
Published: February 2022

This article will discuss the lawsuit Scarlett Johansson filed against Disney over the streaming trend. This paper will precisely analyze the case to understand their right to be opposed and how they reacted throughout the lawsuit. In addition, the impact of this action on the film business is significant and is included in this article. Background on the lawsuit. According to Disney’s response to the lawsuit, Johnson received a $20 million advance salary for appearing in the film, but her complaint states that making the film available through Disney plus increased the value of the streaming service but decreased office revenue.
Analysis on Pinduoduo Business Model and Future Development Strategy based on Sinking Market
Authors: Cheng Nie , Huang Xinyu , Qian Jing
Published: February 2022

This paper analyses Pinduoduo's success and make suggestions to help it further improve its business model for the long term and provide a reference experience of similar e-commerce companies by using moat theory.  In the long run, the competitiveness of its competitors in the same industry cannot be underestimated. In the current situation, Pinduoduo's moat is weak in terms of intangible assets and user conversion costs due to the poor quality of most of the products on its platform and that its primary users are price-sensitive users. In this context, the authors give following suggestions for its future development: 1. Highlight brand characteristics and ensure product quality 2. Create differentiated competitive advantages 3. Improve supply chain structure and back-end service system 4. Refined operation of existing users and stop blindly expand users.