bluuebunny/crossref_metadata_2025 huggingface dataset:
An Observation of Posterior Tibial Slope and Metaphysio-diaphyseal Angle in Indian Population
Authors: Thirunarayanan Vasudevan , Ramprasath Dhurvas R , Amarnath Ramachandran , Arun Velmani
Published: January 2021

Introduction

The posterior inclination of the tibial plateau relative to the longitudinal axis of tibia is referred to as the posterior tibial slope (PTS). There is paucity of data regarding PTS in Indian population. Metaphysio-diaphyseal angle (MDA) is the angle between longitudinal axis of tibia and proximal tibial metaphysis, a new entity with a possible clinical significance. This study was performed to determine the mean PTS and mean MDA to study the correlation of PTS and MDA changes with osteoarthritic degeneration in Indian population and to assess the sensitivity and specificity of PTS and MDA in detecting osteoarthritis. A descriptive, cross-sectional study design was followed.

Materials and methods

A total of 173 X-rays with true PA and lateral views were examined from 121 individuals using standardized technique. Osteoarthritis was classified based on Ahlback grading system. Posterior tibial slope was defined as the angle formed by two lines in the lateral knee radiograph. Metaphysio-diaphyseal angle is a new entity defined in this study, formed between two lines—first line is the proximal anatomical axis of the tibia and the second is the axis of the proximal tibial metaphysis. All the observations and measurements of PTS and MDA were statistically analyzed using MedCalc software.

Results

There were 121 individuals in the study with 91 osteoarthritic knees and 82 normal knees. The mean PTS among normal group is 9.69° [range 5–13° with standard deviation (SD) 1.81] and among arthritic group is 14.05° (range 10–24° with SD 2.38). The mean MDA among normal group is 19.87° (range 15–30° with SD 2.70) and among arthritic group is 25.03° (range 19–34° with SD 3.05). There is a moderate correlation between PTS and MDA (r = 0.64). Sensitivity and specificity in detecting osteoarthritis with PTS is 96.7% and 85.4% and by MDA is 90.1% and 84.7%, respectively.

Conclusion

Our study finds that native PTS is similar to that of oriental population but higher than that of Caucasians. There is moderate linear correlation between PTS and MDA. They also serve as a marker in detecting osteoarthritis with good sensitivity and specificity.

How to cite this article

Thirunarayanan V, Ramprasath DR, Amarnath R, et al. An Observation of Posterior Tibial Slope and Metaphysio-diaphyseal Angle in Indian Population. J Orth Joint Surg 2020;2(2):52–56.
Subtrochanteric Femur Fracture in Neonates: A Rare Complication after Breech Presentation
Authors: Sharma Rohit , Singla Sahil , Sharma Rajan , Bawa Ranbir S , Singh Arshpreet , Sidhu Navpreet S , Satti Satinderpal K , Dhillon Arshpreet S
Published: January 2021

Fetus born in breech presentation are commonly delivered via cesarean section which is necessary to prevent trauma, and this extraction by operative maneuver can rarely lead to trauma and may result in femur fracture. But delivery of breech via vaginal route leads to various complications such as fractures. Femur fracture although being relatively a rare complication one of the most common fractures of the lower extremity presenting in newly born babies. In our case, 39-week mature fetus with weight 3,300 g breech presentation delivered by cesarean section presented with subtrochanteric femur fracture left side. A complete healing of the fracture, without any sequelae, was noted when the patient was simply immobilized with hip in flexion, abduction, and external rotation. The possibility of accidental injuries and traumatic complications are significantly reduced in cesarean section, especially in breech delivery when compared with vaginal delivery, but it does not completely eliminate the possible birth injuries and thus fractures of the newborn. So, clinicians must check for fractures even after cesarean section in breech presentation.

How to cite this article: Singla S, Sharma R, Sharma R, et al. Subtrochanteric Femur Fracture in Neonates: A Rare Complication after Breech Presentation. J Orth Joint Surg 2020;2(2):79–81.
Trabalho e Deficiência
Authors: Lima Elaine Thais da Silva , Orchard Maria Soledad Etcheverry , Santos Maria João Nicolau dos
Published: January 2021

O trabalho é um importante meio de integração à sociedade. No campo da deficiência, essa premissa está presente em diferentes dispositivos nacionais e internacionais de proteção de direitos, abordados neste estudo com o objetivo de refletir sobre a garantia de acesso de pessoas com deficiência ao trabalho no contexto do serviço público brasileiro. Foi realizada uma pesquisa descritiva, com abordagem qualitativa, a partir de dispositivos legais de abrangência nacional e internacional, publicados no período de 2014 a 2019. A busca por uma compreensão acerca da deficiência pautada na pluralidade humana e nas interações sociais ficou evidente, embora pulverizada nos diferentes dispositivos legais publicados ao longo do tempo.
Cortadas pela Raiz
Authors: Souza Karine Freitas
Published: January 2021

As assimetrias de poder entre os sexos persistem na academia. Frente às conquistas femininas, alguns cursos superiores nas Universidades Federais, cujo número quase absoluto de ingressantes é composto por mulheres de camadas sociais mais baixas permanecem historicamente deficitários quanto à produção científica, tanto dos discentes quanto dos docentes com formação nesta área. Somem-se a estes fatos, o status da profissão, os baixos salários, as dinâmicas econômicas que fomentam o surgimento de novas ocupações, e o alto índice de desemprego decorrente da crise nos últimos três anos. Todos estes aspectos inferem um possível cenário negativo para os bacharelados de Secretariado Executivo no mercado, e implicam em suas permanências nas universidades. Sob tais considerações investigamos as dissonâncias entre a formação acadêmica nesse curso e a pesquisa na área, que implicam em meio século de isolamento em uma graduação "feminina” dentro de um centro de excelência no campo da Administração do país. Consideramos a formação dos graduandos para pesquisa e verificamos a produção científica de seus docentes no campo. Delimitamos nossa análise no curso de Secretariado Executivo da Universidade Federal da Bahia (UFBA) em um recorte temporal que considera taxas de três anos, de 2014 a 2016. A pesquisa identifica as dificuldades das mulheres relacionadas à formação para pesquisa em um curso majoritariamente feminino.
The Impact of Economic Indicators on Food Supply Chain of Palestine
Authors:   Department of Computerized Financial and Banking Science, Palestinian Technical University-Kadoorie (PTUK), Tulkarm-Palestine., Shwekeh Ahmad , Zaid Ahmed ,   Department of Industrial Management, Palestinian Technical University Kadoorie (PTUK), Tulkarm-Palestine., W. A. Saleh Mohammed ,   Deprtment of Accounting Information System, Palestine Technical University- Khadoori, Tulkarm., Khaleel Mansour Marwan Mohammad ,   Faculty of Business, Economics and Social Development, Universiti Malaysia Terengganu- Malaysia/Terengganu.
Published: January 2021

Food supply chain has become a crucial segment of every economy especially after the COVID-19. Lockdown was imposed in Palestine that is why it was very hard to maintain food supply chain from forms to end-users. Pandemic disturb every economy but developing economies like Palestine was more vulnerable. Although, Palestine authorities did their best by adopting best economic practices still various indicators impact the food supply chain. The aim of this article is empirically find out the impact of economic indicators on food supply chain. This is quantitative study and the questionnaire was adopted from well reputed studies. The data was collected by convenience sampling and analysed by structuring equation modelling through Smart PLS. The finding of this study revealed that inflation rate is negatively effecting the performance of food supply chain although economic indicators are not significant impacting. This study has unique findings it has been found that HDI is positively and significantly effecting food supply chain and HDI is also positively and significantly effecting the GDP but GDP is also positively impacting food supply chain but not significantly. This may be because of emerging country that heavily rely on external support and has less industrialization. This study help manages to understand that inflation is very bad for food supply chain so they must take care of inflation rate while decision making. This study help government to take necessary measures regarding interest rate and inflation rates. Next study can be conducted other parameters of economic indicators and industry to generalize the findings.
Action Learning for Crime Prevention: Implications for Community Safety
Authors: Ngozwana Nomazulu , Ngcobo Lindiwe , Jele David
Published: January 2021

Crime prevention is everyone’s responsibility – law enforcement officers, community members, social groups, businesses and governments who all need to be sensitized about prevention strategies for ensuring community safety. Interpretive paradigm was used within a qualitative research approach. We adopted a descriptive research design. A semi-structured interview guide was used to collect data from all the participants that were purposively chosen. Six crime prevention officers, that were selected using snowball sampling, were individually interviewed. Data were further collected from twenty-eight members of community policing forums in three focus group discussions and six members of the inner council in the fourth focus group discussion. Qualitative thematic analysis was used. The findings revealed that some community policing forum members abused their skills and knowledge to commit crime than fight it. The findings demonstrated that community policing is effective in reducing crime. However, it transpired that the forums faced several challenges such as: lack of airtime to make calls, lack of incentives to motivate members, female members experiencing difficulty at night because they were afraid while others were not released by their partners to go to work. Although the community policing forums enhanced social change towards crime in various communities, there are negative implications for women serving as members of the forums.
Challenges of Distance, Blended, and Online Learning: A Literature based Approach
Authors: Yaw Koi-Akrofi Godfred , Owusu-Oware Emmanuel , Tanye Hannah
Published: January 2021

The objectives of the study were to show the basic differences between Distance, Blended and Online learning, and establish their common challenges from literature. Approximately 35 categories/sets of research results or findings from more than 65 publications were reviewed and used for this work. Articles were obtained from sources such as Google Scholar, ResearchGate, Academia.edu, Google Search Engine, and Elsevier. The key themes used for the search are Distance education, Distance learning, Online learning, Blended learning, Differences between face-to-face and online learning, and the use of the internet for learning. The differences between Distance, Blended, and Online Learning (DBOL) modes were summarized, and 11 challenges of DBOL were realized. These 11 challenges were summarized into six themes namely, lack of infrastructure, low or no IT skills, self-disciplinary problems, content issues, policy issues, and social issues. It was strongly advised that, for effective DBOL implementation and operation, there must be in place a solid DBOL policy, adequate infrastructure, and constant training of stakeholders on the use of learning management systems and the development of related IT skills in general.
Further Improvements of CFA 3.0 by Combining Inpainting and Pansharpening Techniques
Authors: Kwan Chiman , Larkin Jude
Published: January 2021

Color Filter Array (CFA) has been widely used in digital cameras. There are many variants of CFAs in the literature. Recently, a new CFA known as CFA 3.0 was proposed by us and has been shown to yield reasonable performance as compared to some standard ones. In this paper, we investigate the use of inpainting algorithms to further improve the demosaicing performance of CFA 3.0. Six conventional and deep learning based inpainting algorithms were compared. Extensive experiments demonstrated that one algorithm improved over other approaches.
A Novel Graph Representation for Skeleton-based Action Recognition
Authors: Li Tingwei , Zhang Ruiwen , Li Qing
Published: January 2021

Graph convolutional networks (GCNs) have been proven to be effective for processing structured data, so that it can effectively capture the features of related nodes and improve the performance of model. More attention is paid to employing GCN in Skeleton-Based action recognition. But there are some challenges with the existing methods based on GCNs. First, the consistency of temporal and spatial features is ignored due to extracting features node by node and frame by frame. We design a generic representation of skeleton sequences for action recognition and propose a novel model called Temporal Graph Networks (TGN), which can obtain spatiotemporal features simultaneously. Secondly, the adjacency matrix of graph describing the relation of joints are mostly depended on the physical connection between joints. We propose a multi-scale graph strategy to appropriately describe the relations between joints in skeleton graph, which adopts a full-scale graph, part-scale graph and core-scale graph to capture the local features of each joint and the contour features of important joints. Extensive experiments are conducted on two large datasets including NTU RGB+D and Kinetics Skeleton. And the experiments results show that TGN with our graph strategy outperforms other state-of-the-art methods.
Ecología y etnobotánica dos plantas comestibles de la comunidad Altoandina de Kcana Janansaya, distrito Kunturkanki, Provincia Canas, Cusco
Authors: Pacori-Gonzales Pascual , Callañaupa-Mendoza F. , Callañaupa-Mendoza E. , Sánchez-Callañaupa Y.
Published: January 2021

El presente trabajo de investigación se realizó en la comunidad altoandina de Kcana Janansaya, distrito Kunturkanki, Provincia Canas, Región Cusco, a 4 085 m de altitud, desde febrero a abril de año 2013; con el objetivo de estudiar dos especies de plantas comestibles de la comunidad mencionada. El método empleado fue el Muestreo Aleatorio Simple (MAS) al azar. El área de la muestra es de 0.135 ha (1 350 m2) distribuidos en9 parcelas rectangulares de 150 m2(10 x 15 m), las que a su vez se dividieron en subparcelas de 1 m2 (1 x 1 m). Se registró 783 especímenes, de los cuales, la especie Stangea rhizantha (A. gray) Killip predomina con 50.83 % (398 muestras), en comparación con la especie Hypochaeris taraxacoides (Walpers) Bentham & Hooker f. que posee el 49.16 % (385 muestras). De las cualidades nutricionales; la segunda especie resalta en carbohidrato con 18.0 %, fósforo 83.0 mg/100 y potasio 14.0 mg/100. De las 69 personas encuestadas, el 56.52 % (21 varones, 18 mujeres) informan que ambas especies se consumen crudo, el 36.23 % (15 varones, 10 mujeres) indican que se expenden en los mercados comunales y distritales, el 7.24 % (4 varones, 1 mujer) no saben ni opinan.
Polish and Ukrainian University Students’ Perspectives on Academic Writing: A Comparative Overview
Authors: Kozolup Mariya , Kokor Mariya , Savchynskyi Ruslan
Published: January 2021

Communication, both written and oral, as the key to academic and professional success has received much scholarly attention in the academic communities of Western Europe and North America. However, in the Eastern European educational scene, teaching academic communication, especially academic writing, in institutions of higher education has been largely neglected for a long time. This research attempts to look at academic writing practices at two universities in Ukraine and Poland from the students’ perspectives. The survey conducted among students pursuing master’s degrees in education and pedagogy at both universities aimed to reveal their attitudes, beliefs and opinions in three domains: cognitive, social and affective. The results lead to some important inferences: students’ exposure to academic writing is insufficient; the potential of writing as a learning tool is not fully understood; students’ awareness of academic integrity is rather low. The tendencies observed across institutions are mostly similar with occasional significant differences.
Agglomerations, Relationality, and In-betweenness: Re-learning to Research Agency in Digital Communication
Authors: Kalpokas Ignas
Published: January 2021

As today’s communicative acts are usually irrevocably tied with digital technology, it is important to better understand the resulting ontological and epistemological shifts. The central claim of this article is that humans can no longer be the prime referents of research, either as pure communicators or pure audiences. Instead, research must become sensitive to relational agential flows, whereby different entities interact within ontologically flat agglomerations. For this purpose, the article develops a posthumanist account of the research process that explicitly rejects traditional anthropocentric assumptions in favor of an egalitarian framework that emphasizes relationality and, therefore, constant multidirectional change without linear paths of causation.
HUBUNGAN ANTARA PENGUASAAN KOSAKATA DENGAN KEMAMPUAN MENULIS CATATAN HARIAN PADA SISWA KELAS VII MTs MATHLA’UL ANWAR PUSAT MENES KABUPATEN PANDEGLANG
Authors: Juanto Ade
Published: January 2021

The Relationship Between Vocabulary Mastery and Daily Notes Writing Ability in Grade VII Students of MTs Mathla'ul Anwar, Menes Center, Pandeglang RegencyThe background of this problem is helping children improve their ability to communicate with Indonesian properly and correctly, both verbally and in writing. One form of the ability to communicate verbally can be poured in the form of ability in mastering vocabulary. Vocabulary is a form of words in a language, both known (mastered) or unknown (not yet mastered).The purpose of this study was to determine the relationship between vocabulary mastery and the ability to write a diary in grade VII students of Maths Maul Anwar Center for Menes in the Academic Year of Pandeglang Regency.This research was conducted at the MTs Mathla'ul Anwar Center of Menes in the odd semester of the 2018/2019 Academic Year, which was located on the Prapatan Cimanying Menes Pandeglang-Banten highway, Class VII of the odd semester of the 2018/2019 Academic Year.Data collection techniques used in this study are tests that will be used to obtain variables related to the relationship between vocabulary mastery and the ability to write a diary in class VII students of Maths' Anwar Anwar Center Menes Pandeglang RegencyThe analysis requirements test used is the normality test and the homogeneity test. The calculation of normality test uses a significance level of 5%, while the homogeneity test uses the similarity test of two variances. From the results of the normality test results obtained in the mastery of vocabulary X ¬2 ¬calculate 5.52 and the ability of the daily record X ¬ ¬2calculate 3.17. X2 table on vocabulary mastery and the ability to write a diary with db = k -3 = 5-3 = 2 and α = 5% is 5.991. Because in the two groups X ¬ 2 ¬ arithmetic <X 2 table then it can be concluded the data of the two groups are normally distributed. For the homogeneity test, Fcount = 1.01 with Ftable = 1.90, because Fcount <Ftable, it can be concluded that the data is homogeneous.To determine the strength of the comparison hypothesis test is used and the obtained value of tcount = 19.8 with a significant level α = 5% and degrees of freedom (dk) = 30-2 = 28 obtained ttable 1.71. Because tcount> ttable, meaning reject Ho, which states that there is a relationship between vocabulary mastery and the ability to write a diary in grade VII students of MTs Mathla'ul Anwar Center of Menes Pandeglang Regency.Keywords: Vocabulary Mastery, Writing Daily Notes.
DESAIN PENGEMBANGAN BAHAN AJAR DIGITAL BERBATUAN APLIKASI COMIC LIFE 3 PADA MATA KULIAH MEDIA PEMBELAJARAN ANAK USIA DINI
Authors: Munawar Badri
Published: January 2021

Penelitian ini bertujuan untuk melihat hasil efektivitas dari penggunaan Comic Life 3 dalam proses pembelajaran. Penggunaan Gambar komik dalam proses pembelajaran adalah untuk memperkaya imaginasi dan kreativitas mahasiswa di era Teknologi. Permasalahan yang terjadi pada proses pembelajaran di PGPAUD adalah minimnya akses untuk mengoperasikan bahan ajar berbasis digital, meskipun sudah tersedia sarana seperti laptop atau projektor. Proses pembelajaran yang dilaksanakan dalam pendidikan anak usia dini yang di blanded bermain dengan pembelajaran memakai Gambar komik akan memudahkan mahasiswa atau calon guru memperkaya bahan ajar. Peneliti menggunakan model ADDIE (Analysis, Design, Develop, Implementation, dan Evaluation). Subjek penelitian yaitu 20 Mahasiswa PGPAUD di STKIP Syekh Manshur. Hasil dari penelitian yang dilakukan pada tahapan Evaluation menunjukkan keberhasilan sebanyak 87.7% yang dapat dikategorikan sangat tinggi. Bahan ajar digital yang menggunakan bantuan aplikasi Comic Life 3 dianggap efektif untuk digunakan oleh Mahasiswa PGPAUD
Analisis Peningkatkan Kemampuan Pemecahan Masalah Dan Kemandirian Belajar Dampak Flipped Classroom Berbantuan Video Pembelajaran
Authors: Sari Marista , Anggoro Bambang Sri , Sugiharta Iip
Published: January 2021

A good education will create a good generation so that the lives of nations and countries will have a good effect. The purpose of this research is to analyze the influence of flipped classroom learning models assisted by Video Learning to improve problem solving skills and learning independence. The research method used is quantitative with quasy experimental design type. The sampling techniques in this study used randomized classroom techniques as experiment classes with flipped classroom learning models, control classes that used expository models. The data analysis technique used in this study is the Manova test with the conclusion that there is an influence on the use of flipped classroom learning models assisted by learning videos to improve solving skills. There is an influence on the use of flipped classroom learning models assisted by learning videos to improve learning independence. There is an influence on the use of flipped classroom learning models assisted by learning videos to improve mathematical problem solving skills and learning independence
Primary Diffuse Large B-Cell Lymphoma of the Breast: A Rare Case Report and Review of the Literature
Authors: Alegbeleye Bamidele J. , Ogunwobi Olorunseun O.
Published: January 2021

BACKGROUND: Breast lymphomas are rare extranodal lymphomas. They constitute a tiny percentage of malignant tumors of the breast and a small subset of extranodal lymphomas. The rarity of breast lymphomas is attributed to the very scanty lymphoid tissue content of the chest wall.

AIMS OF STUDY: This case report aims to provide an up-to-date review of the literature on breast lymphomas and clinicians to consider the possibility of this disease entity while treating a breast mass.

CASE PRESENTATION: A case is reported of primary mammary non-Hodgkin lymphoma in a 52-year-old man. Fine needle aspiration cytology (FNAC) was inconclusive. Incisional biopsy-confirmed primary breast lymphoma was diagnosed as the diffuse large B-cell type: non – Hodgkin lymphoma. He had complete disease remission in response to chemotherapy – Cyclophosphamide, Doxorubicin, Vincristine, and Prednisolone (CHOP). After that, the patient did not require further surgical intervention. He was followed up at two-monthly intervals for eighteen months in the surgical outpatient clinic with no disease recurrence and satisfactory clinical outcome, following which he discontinued follow-up visits.

CONCLUSION: While assessing breast masses, clinicians must recognize primary non-Hodgkin lymphoma as a potential differential diagnosis. A core biopsy of breast masses is needed to exclude it, and appropriate treatment must be given if diagnosed.
Retrieval of Shape using Curves and Contours
Authors: Jakóbczak Dariusz Jacek
Published: January 2021

Proposed method is dealing with multi-dimensional data modeling, extrapolation and interpolation using the set of high-dimensional feature vectors. Identification of handwriting, signature, faces or fingerprints need data modeling and each model of the pattern is built by a choice of characteristic key points and multi-dimensional modeling functions. Novel modeling via nodes combination and parameter γ as N-dimensional function enables data parameterization and interpolation for feature vectors. Multi-dimensional data is modeled and interpolated via different functions for each feature: polynomial, sine, cosine, tangent, cotangent, logarithm, exponent, arc sin, arc cos, arc tan, arc cot or power function.
Oral Health: a Primer
Authors: Sadiku Matthew N. O. , Ashaolu Tolulope J. , Musa Sarhan M.
Published: January 2021

Health is a quality of life with social, mental, emotional, spiritual, and physical functions. Good oral health is key to good overall health. It can have a significant impact on the overall health and well-being of our citizens. It affects people physically and mentally and influences how we grow, enjoy life, look, speak, chew, taste food, and socialize. Oral diseases affect our well-being throughout life. Taking good care of our mouth, teeth and gums is a worthy goal. This paper discusses oral health and how bad oral health can be prevented.
Gender Issues in Achievement and Retention among Secondary School Students Taught Thermal Energy Using Metacognitive Scaffolding Teaching Strategy
Authors: Agu P.A. , Iyamu C.O.
Published: January 2021

This study investigated gender issues in achievement and retention among secondary school students taught thermal energy using metacognitive scaffolding teaching strategy in Federal Capital Territory (FCT), Abuja, Nigeria. Four research questions were asked, while four null hypotheses were tested at 0.05 level of significance. Quasi experimental research design involving non-randomized control pretest-posttest design was utilized. The study population consisted of 2699 Senior Secondary II (SSII) physics students from 54 public SSII physics students in FCT, Abuja. Multistage random sampling technique was used to select two schools for the study. From the two schools, two intact SSII classes were selected consisting of 75 SSII physics students. The instrument used for data collection consists of Thermal Energy Achievement Test (TEAT). The data collected from the instrument were analyzed using Statistical Package for Social Science (SPSS). The research questions were answered using mean and standard deviation while the null hypotheses were tested using Analysis of Covariance (ANCOVA). Findings from the analyzed data showed that physics students taught using metacognitive scaffolding teaching strategy performed better in their achievement scores than those taught using conventional lecture method; Male physics students did not perform better than their female counterpart when taught using metacognitive scaffolding teaching strategy; Physics students taught using metacognitive scaffolding teaching strategy performed better in their retention scores than their counterparts in the control group; Male physics students did not perform better in their retention scores than their female counterpart when taught using metacognitive scaffolding teaching strategy. Based on these findings, it was recommended among others that physics teachers should be encouraged to teach using metacognitive scaffolding teaching strategy. Government and educational agencies, curriculum planners and developers should encourage the training of physics teachers on metacognitive scaffolding teaching during seminars, workshops and conferences.
The U.S. AI Workforce: Understanding the Supply of AI Talent
Authors:   Center for Security and Emerging Technology, Gehlhaus Diana , Mutis Santiago
Published: January 2021

As the United States seeks to maintain a competitive edge in artificial intelligence, the strength of its AI workforce will be of paramount importance. In order to understand the current state of the domestic AI workforce, Diana Gehlhaus and Santiago Mutis define the AI workforce and offer a preliminary assessment of its size, composition, and key characteristics. Among their findings: The domestic supply of AI talent consisted of an estimated 14 million workers (or about 9% of total U.S. employment) as of 2018.
Soil shrinkage and consolidation study on flood embankments in swamp irrigation areas
Authors: Afriani Lusmeilia , Susilo Gatot Eko , Nawangrini Sri , Iswan Iswan
Published: January 2021

Research in this paper discusses shrinking and consolidation of flood embankments soil in swamp irrigation areas. The flood embankments are made from swampy soil materials. The focus of this research is the reduction of dyke embankment height that occurs due to soil shrinkage and soil consolidation. Investigations about the time of consolidation and land subsidence that occurred on the embankment at certain periods after the embankment established were also carried out in this study. The research sites are some swamp irrigation areas in the Tulang Bawang Watershed, around North-East Lampung, Indonesia. This research was carried out by conducting laboratory tests on soil samples and field observations on the reduction in height of flood embankments in the study area. The research shows that the main cause of total decrease on the embankment is due to linear shrinkage, consolidation of soil under the embankment, an immediate subsidence, and the subsidence of the embankment themselves. Their contribution to total decrease of embankment is 42.51%, 34.48%, 18.32%, and 4.62%, respectively. Results also indicate that the ratio between the percentage of embankment consolidation in downstream area happen faster than the one in upstream area of the river.
Optimizing large scale bin packing problem with hybrid harmony search algorithm
Authors: Adamuthe Amol C. , Nitave Tushar R.
Published: January 2021

Bin packing problem (BPP) is a combinatorial optimization problem with a wide range of applications in fields such as financial budgeting, load balancing, project management, supply chain management. Harmony search algorithm (HSA) is widely used for various real-world and engineering problems due to its simplicity and efficient problem solving capability. Literature shows that basic HSA needs improvement in search capability as the performance of the algorithm degrades with increase in the problem complexity. This paper presents HSA with improved exploration and exploitation capability coupled with local iterative search based on random swap operator for solving BPP. The study uses the despotism based approach presented by Yadav et al. (2012) [Yadav P., Kumar R., Panda S.K., Chang, C. S. (2012). An intelligent tuned harmony search algorithm for optimisation. Information Sciences, 196, 47-72.] to divide Harmony memory (HM) into two categories which helps to maintain balance between exploration and exploitation. Secondly, local iterative search explores multiple neighborhoods by exponentially swapping components of solution vectors. A problem specific HM representation, HM re-initialization strategy and two adaptive PAR strategies are tested. The performance of proposed HSA is evaluated on 180 benchmark instances which consists of 100, 200 and 500 objects. Evaluation metrics such as best, mean, success rate, acceleration rate and improvement measures are used to compare HSA variations. The performance of the HSA with iterative local search outperforms other two variations of HSA.
THE EFFECT OF DIFFERENT IRRIGANTS WITH OR WITHOUT ULTRASONIC ACTIVATION ON ROOT DENTIN MICROHARDNESS
Authors:   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria., Tsenova-Ilieva Irina , Karova Emilia ,   Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria.
Published: January 2021

Purpose: The aim of this in vitro study was to evaluate the effect of different irrigation regimens of root dentin microhardness. Materials and methods: Twenty extracted, single-rooted, non-endodontically treated upper incisors were decoronated and further sectioned longitudinally in buccolingual direction. The surfaces of all forty samples were polished, evenly distributed into four groups (n=10) and then immersed in the following solutions: group 1: 2% sodium hypochlorite for 2 minutes followed by 17% EDTA for 2 minutes; group 2: 2% sodium hypochlorite for 2 minutes followed by 17% EDTA for 2 minutes, both ultrasonically activated; group 3: 5.25% sodium hypochlorite for 2 minutes followed by 17% EDTA for 2 minutes; group 4: distilled water (control group). Afterwards, the samples were dried and subjected to microhardness testing by using 300g load with a dwell time of 20 seconds. The averaged values of each sample’s Vicker’s hardness numbers were calculated and statistically analyzed. Results: All irrigation regimens significantly decreased the mean hardness of dentin when compared to the control group 4 (p<0.05). Pair-wise comparison between the values of Group 1, Group 2, Group 3 resulted in no statistical significance (p>0.05) regardless of the concentration and the ultrasonic activation of the solutions. Conclusions: The dentin microhardness was decreased regardless of the irrigation protocols used. Additional studies should clarify the clinical relevance of the compromised mechanical properties of dentin tissue and their relationship with the overall treatment success.
Joyful Encounters: Learning to Play Well with Machines
Authors: Sandry Eleanor , Peaty Gwyneth
Published: January 2021

Human interactions with machines, including computers, consoles, smart devices and robots, are becoming more and more a part of everyday life. However, human–machine relations are often regarded as problematic for people, their interpersonal communication and human society more broadly. This paper provides an analysis of the characteristics that constitute ‘play’ in relation to video games and interactions with robots, arguing it is possible to position time spent on play with machines as valuable in itself, without requiring the outcomes more traditionally regarded as productive. Much of what is valuable in play can be seen to develop from embodied processes of communication within which humans and machines encounter and respond to one other. These encounters are often shaped by stories about the capabilities of machines and humans, while the interactions themselves go on to provoke new narratives. Although human– machine interaction can be theorized as ‘cyborg’ or ‘hybrid’, this paper argues that adopting the idea of the ‘assemblage’ is a better way recognize the flexibility of bringing disparate humans and machines together, whether in relation to playing a game or playing music. In rethinking the value of play, this paper emphasizes how people’s time spent interacting, whether with video games or robots, provides opportunities for them to learn more about themselves and others.
Lessons from the History of Internet Studies
Authors: Allen Matthew
Published: January 2021

A Keynote Presentation given at the Open Literacy Digital Games, Social Responsibility and Social Innovation Symposium in celebration of the 20-year anniversary of the founding of Internet Studies at Curtin University. Matthew is Australia’s first Professor of Internet Studies, having established the world-leading Internet Studies department at Curtin University where he worked from 1993 to 2012.
Impactos Del Sistema Neoliberal, Patriarcal A Los Cuerpos Territorios De Las Mujeres Indígenas En Honduras (Garífuna, Maya Chorti,Lenca, Pech, Tolupán y Misquito)
Authors: Murcia Rode
Published: January 2021

El XII Congreso Centroamericano de Antropología con sede en la UNAN-Managua, ha invitado a vivir un encuentro interdisciplinario, siendo la Antropología el estudio de los seres humanos en todas sus manifestaciones, es muy importante que propicien este espacio para que nos encontremos y compartamos las realidades socioculturales que acontecen en nuestra región mesoamericana, con nuestros pueblos y recursos naturales. El Ensayo titulado: Impactos del sistema neoliberal, patriarcal a los cuerpos territorios de las mujeres indígenas en Honduras; Garífuna, Maya Chorti, Lenca, Pech, Tolupán y Misquito, contiene las experiencias vividas en Honduras y sistematizadas por laCoordinadora Nacional de Mujeres Indígenas de Honduras. CONAMINH y la Organización Fraternal Negra de Honduras. OFRANEH, ambas organizaciones integrantes de la Red Jubileo Sur / Américas. Estas experiencias muestran las graves consecuencias que el sistema neoliberal ha causado al pueblo hondureño, pero que recaen principalmente sobre los cuerpos – territorios de las mujeres de pueblos originarios ancestrales y sobre la Madre Tierra.
Los rostros del ayer en una historia presente: Análisis desde las realidades de los deshabilitados de guerra en el municipio de Chinandega, 2019
Authors: Hernández Briceño Sergio José
Published: January 2021

El presente artículo es elaborado a partir del relacionamiento del autor con actores estratégicos pertenecientes al gremio de deshabilitados de guerra en el municipio de Chinandega. El título “Los rostros del ayer en una historia presente- Análisis desde las realidades de los deshabilitados de guerra en el municipio de Chinandega, 2019”. Apunta rescatar algunos elementos extraídos desde la oralidad emitida por estos actores, misma donde son relatados aspectos historiográficos y reflexiones de las vivencias de este grupo acerca de su protagonismo en los procesos de insurrección para la liberación nacional. El propósito de este artículo investigativo es realizar un análisis integral y cronológico de las experiencias y perspectivas de algunos deshabilitados de guerra en la actualidad. De igual forma se pretende indagar en sus apreciaciones relacionadas al contexto actual del país y su protagonismo para la consolidación de la paz. El tema ha sido abordado desde el enfoque holístico- antropológico, empleandose métodos y técnicas propias como la etnografía, la observación directa y participante, aplicación de las entrevistas a profundidad a actores/as claves del estudio.
The Avant-Garde and Creativity: A Gricean Account
Authors: Carroll Noël
Published: January 2021

In this article, I discuss the historical imperative for art to create new forms. This imperative has become especially pronounced in the Age of the Avant-Garde. For that reason, I focus on the way in which avant-garde creativity typically proceeds. To that end, I rely on Paul Grice’s theory of communication.
Therapeutic Self-knowledge in Narrative Art
Authors: Kuplen Mojca
Published: January 2021

In recent years, there have been debates in aesthetics and philosophy of art on the question of whether we can acquire knowledge about the world from works of art. However, little has been written on the effects that art has on cultivating self-knowledge and self-development. While, for most of us, it seems obvious that art has these effects, little is known about how and why these effects occur. Addressing this issue is the main aim of this paper. The gist of the argument is that narrative art provides a unique opportunity to adopt a dual (first- and third-personal) perspective on the self, which is argued recently by psychologists and philosophers of mind to be necessary for obtaining the kind of self-knowledge that leads to self-development and self-change, that is, therapeutic self-knowledge.
The Influence of Auditor Opinion, Audit Committee, Discretionary Accrual on Corporate Performance and Cumulative Abnormal Return (Evidence From Indonesia Stock Exchange)
Authors: Indrayati Indrayati , Rahmat Basuki , Handayawati Kuni Utami
Published: January 2021

This research aimed to analyze and determine the influence of auditor opinion, audit committee, and discretionary accrual onthe cumulative abnormal return of a company using corporate performance as a moderating variable in the agricultural, basic chemical industry, food and beverage, and finance companies listed on the Indonesia Stock Exchange 2016-2019. The data analysis method used path analysis and multiple linear regressions on a research population of 625 companies listed on the Indonesian Stock Exchange 2016-2019. This research used 226 companies as samples. Research result shows that the auditor opinion and audit committee has no significant influence on corporate performance. Discretionary accrual has a significant influence on corporate performance. Auditor opinion, audit committee, and discretionary accrual have no positive influence on cumulative abnormal return. Corporate performance has a significant influence on cumulative abnormal returns.
Empirical Study of the Dividend Policy of Russian Companies at the Present Stage
Authors: Filippova Irina Alekseevna , Biktemirova Milyausha Kharisovna , Strelnik Evgeniya Yurievna , Salikhov Rustam Rinatovich
Published: January 2021

Many of the theoretical issues related to the company's dividend policy are highly debatable and sometimes controversial. This article presents the results of an empirical analysis of dividend payments of 50 large Russian public companies for the period from 2011 to 2018. The main source of information in the formation of the empirical base was the data of the annual accounting statements of public companies. During the study, hypotheses about the interrelations of dividend payments and market capitalization, as well as performance indicators and indicators that characterize financial and investment policies had been tested. According to the results, a number of analyzed factors, including revenue, the presence of the state and foreign investors in the ownership structure, financial leverage ratio, the absorption factor per cent, and return on invested capital turned out to be statistically insignificant. Among factors that have a statistically significant association with the dividend payments are market capitalization, net profit, return on assets, return on equity, average total assets. In the course of substantiating and making dividend payout decisions, company management should evaluate, predict and take into account the intricacies of dividend payments with financial and investment decisions. At the same time, the main task of management is to find the optimal amount of dividend payments and thus to meet the expectations of shareholders.
O Racismo Nosso de cada Dia: contradições de uma sociedade que se apresenta racialmente democrática
Authors: Lima Alexandre Bonetti
Published: January 2021

Este artigo tem como objetivo traçar reflexões teórico-conceituais sobre a temática do racismo no Brasil. Partindo da obra de decolonialistas latino americanos assinalamos, inicialmente, que as matrizes históricas do racismo no país são desdobramentos da colonização europeia e do pensamento eurocêntrico na modernidade. Em seguida, discutimos a história do racismo no Brasil, enfocando-a em períodos após a abolição da escravidão marcados, especialmente, pela ideologia do embranquecimento, num primeiro momento, e pelo mito da democracia racial, a partir da era Vargas. Neste tópico, trouxemos dados acerca da grave situação de desigualdade social entre negros e brancos que persiste no país. Buscamos, assim, nos somar com vozes ético-críticas que reivindicam que a violência desta experiência cotidianamente vivida pela maior parcela da população não mais seja desqualificada e naturalizada, mas explicitamente revelada. Apenas desta maneira, medidas efetivas contra o racismo estrutural poderão ocorrer, afastando esse insidioso espectro que reincide constantemente nas sociabilidades brasileiras.
Maksymalna dopuszczalna ekspozycja (MDE) w ocenie zagrożeń oczu i skóry wywołanych promieniowaniem laserowym
Authors: Grzegorz Owczarek , Szkudlarek Joanna , Jachowicz Marcin
Published: January 2021

W artykule omówiono sposoby określania lub wyliczania wartości maksymalnej dopuszczalnej ekspozycji (MDE) oka i skóry na promieniowanie laserowe oraz znaczenie tych wartości w ocenie ryzyka związanego z narażeniem człowieka na przypadkową ekspozycję promieniowaniem laserowym. Omówiono opracowane algorytmy do wyznaczania MDE, bazujące na wytycznych określonych w rozporządzeniu Ministra Pracy i Polityki Społecznej z 6 czerwca 2014 r. w sprawie najwyższych dopuszczalnych stężeń i natężeń czynników szkodliwych dla zdrowia w środowisku pracy. Zaprezentowano również przykłady obliczeń przeprowadzonych z wykorzystaniem algorytmów, wskazując na znaczenie MDE w ocenie ryzyka związanego z narażeniem człowieka na przypadkową ekspozycję promieniowania laserowego.
A new spider genus (Araneae: Linyphiidae: Erigoninae) from a tropical montane cloud forest of Mexico
Authors: Ibarra-Núñez Guillermo , Chamé-Vázquez David , Maya-Morales Julieta
Published: January 2021

A new genus and species of spider (Araneae, Linyphiidae, Erigoninae) from a tropical montane cloud forest of Mexico is described from both male and female specimens, Xim trenzado gen. et sp. nov. A phylogenetic parsimony analysis situates Xim gen. nov. as a distinct genus among the distal Erigoninae. Xim gen. nov. is sister to a clade including Ceratinopsis, Tutaibo and Sphecozone, but differs from those genera by having a high cymbium, large paracymbium, short straight embolus, male cheliceral stridulatory striae widely and evenly spaced, both sexes with a post-ocular lobe, male with two series of prolateral macrosetae on femur I, and the female by having strongly oblong, u-shaped spermathecae.
Between science and magic: the case of Schopenhauer
Authors: Segala Marco
Published: January 2021

Uma reflexão filosófica sobre a fenomenologia representada pela magia e pelos poderes mentais extraordinários deveria envolver uma consideração sobre a história da filosofia, em particular sobre os filósofos que estavam familiarizados com o paranormal e que investigaram sobre ele. O presente trabalho propõe uma leitura sobre a investigação de Schopenhauer acerca dos fenômenos paranormais a qual envolve três aspectos: uma análise das estratégias argumentativas propostas por Schopenhauer; uma contextualização do tratamento dado por Schopenhauer à magia e ao espiritismo; uma tentativa de interpretação desse tratamento como um vínculo entre a interpretação tradicional do paranormal e a nova abordagem científica através da pesquisa psíquica do final do século XIX.
An interview with Božidar Manić about temples
Authors: Stanimirović Mirko
Published: January 2021

This paper presents an interview with architect Božidar Manić. The topics of conversation are: the rules for building Serbian Orthodox churches in the 21th century, the relationship between tradition and traditionalism within Orthodox architecture, the influence of the liturgy on the shape of a church, the symbolism of the dome, the development of Serbian sacral architecture, and recommendations for designing modern churches. The talks within the project "Temples about temples" are designed to overcome the current crisis of criteria for building Serbian Orthodox churches, through the cooperation of all participants in the construction of a temple. Through conversations with contemporary architects, the author tries to advance the future creation of ambiences, cities and shrines. The most important conclusions of the conversation with Božidar Manić are: tradition and traditionalism are not the same, there are no binding rules related to the architectural form of a church, the temple space should enable undisturbed worship and the altar must be on the East, separated from the nave.