bluuebunny/crossref_metadata_2025 huggingface dataset:
Carcinoma gástrico e disfagia: uma revisão sistemática
Authors: Besen Eduarda , Mituuti Claudia Tiemi , Moreira Emanuelle , Silveira Deivid De Souza , Haas Patrícia
Published: April 2020

Introdução: O carcinoma gástrico, também conhecido como câncer de estômago é um dos tipos de câncer com grande incidência no Brasil, segundo dados do INCA. As formas de tratamento para carcinomas gástricos estão relacionadas ao estágio em que a doença se encontra, podem variar de cirurgias, ressecções a gastrectomias e linfadenectomias, podendo ser necessária a presença de quimioterapia. Sabe-se que alguns dos muitos tipos de cânceres podem levar à apresentação de algum quadro de disfagia, caracterizada pelas alterações no processo de deglutição. Objetivo: verificar qual o impacto do câncer gástrico na disfagia. Material e Método: Buscas de artigos nas bases de dados Medline (Pubmed), Cochrane Library, SciELO, LILACS e MEDLINE sem restrição de localização ou idiomas, publicados no período de janeiro de 2010 até agosto de 2018. A pesquisa foi realizada na base de dados com os descritores (“Deglutition Disorders” or “Dysphagia” or “Esophageal Dysphagia” or “Oropharyngeal Dysphagia” or “Swallowing Disorders”) and (“Stomach Neoplasms” or “Cancer of Stomach” or “Cancer of the Stomach” or “Gastric Cancer” or “Gastric Cancer, Familial Diffuse” or “Gastric Neoplasms” or “Neoplasms, Gastric or Neoplasms”, “Stomach” or “Stomach Cancer”). Resultados: A relação entre o câncer gástrico e a disfagia é abordada como uma importante consequência dos tipos de tratamentos. Foram encontrados cinco estudos que responderam a pergunta norteadora. Três dos cinco estudos selecionados tratam da qualidade de vida dos pacientes posteriormente ao tratamento. Conclusão: Foi verificado que a disfagia é observada como uma possível consequência do carcinoma gástrico e seu tratamento.
DIAGNÓSTICO EM GESTÃO DO CONHECIMENTO: POSSIBILIDADES E LIMITES NO CAMPO DAS ORGANIZAÇÕES
Authors: Machado Caio Pisconti , Tatto Luiz
Published: April 2020

O artigo discute, como escopo de seu objetivo, a possibilidade de viabilizar a construção de um instrumento de diagnóstico em gestão do conhecimento (GC) universalizável. Metodologicamente, o artigo constitui-se como uma pesquisa exploratória, de natureza qualitativa. Utilizou-se como procedimento técnico de uma revisão sistemática de literatura, em bases de dados com periódicos internacionais. Os principais achados incluem a identificação de barreiras à concepção de ferramentas de diagnóstico em GC generalizáveis a quaisquer modelos organizacionais, possíveis direcionamentos para o campo de pesquisa, análise de convergências dos temas e proposta de sugestões baseadas na tecnologia da informação e nos sistemas complexos adaptativos.
ПОКАЗАТЕЛИ СМЕРТНОСТИ ОТ ПРИОБРЕТЕННЫХ ПОРОКОВ СЕРДЦА ЗА 15-ЛЕТНИЙ ПЕРИОД В РОССИЙСКОЙ ФЕДЕРАЦИИ И СОЕДИНЕННЫХ ШТАТАХ АМЕРИКИ И АНАЛИЗ ФАКТОРОВ, ВЛИЯЮЩИХ НА ИХ ФОРМИРОВАНИЕ
Authors: Semenov V.IU. , Samorodskaia I.V. , Larina V.N. , Andreev E.M.
Published: April 2020

Цель. Провести сравнительный анализ стандартизованных коэффициентов смертности (СКС) от ревматических и неревматических поражений митрального (МК) и аортального клапанов (АК) за 15-летний период среди населения старше 30 лет в РФ и США. Материал и методы. Рассчитывали СКС в возрастных группах 3049 лет, 50 лет и старше, отдельно среди мужчин и женщин. Для стандартизации использовались данные о Европейском стандартном населении на 2013 г. Показатели рассчитаны в РФ по данным Росстата (20002014 гг.), в США World Health Organization Mortality Database и Human Mortality Database (19992013 гг.). Результаты. Суммарный СКС от пороков МК и АК в возрастных группах 3049 лет в РФ выше, чем в США (мужчины 1,8 и 0,6, женщины 0,9 и 0,5 на 100 тыс. населения), в возрастной группе 50 лет и старше в РФ ниже, чем в США (мужчины 9,9 и 26,5, женщины 10,9 и 23,4). За 15 лет СКС от ревматических пороков в РФ значительно снизились. В США эти показатели практически не менялись и были более чем в 2 раза ниже, чем в РФ в 2013 г. СКС от неревматических поражений МК и АК в США на фоне стабильности большинства показателей значительно выше, чем в РФ, в возрастной группе старше 50 лет. Доля СКС от неревматических поражений АК в структуре смертности от рассматриваемых пороков мужчин и женщин старше 50 лет в США составляет 80,2 и 71,8, а в РФ 25,1 и 13,1. В РФ несмотря на резкое снижение показателей в течение 15 лет значительно выше СКС от множественных поражений клапанов (от 2,5 до 6,7 раза в 2013 г. в разных группах наблюдения). Выводы. Выявлены значительные различия в показателях, структуре и динамике смертности от поражений клапанов сердца в РФ и США в 20002014 гг. Различия связаны с особенностями выявляемости пороков, дифференциальной диагностики, организации медицинской помощи, установления первоначальной причины смерти и заполнения медицинских свидетельств о смерти.
El rol de los espacios comunitarios de cuidado de personas mayores en la democratización de los cuidados en la ciudad de Barcelona
Authors: Celi Medina Patricia Estefanía , Ezquerra Samper Sandra
Published: April 2020

Los servicios comunitarios de cuidado a personas mayores, apoyados por el Ayuntamiento de Barcelona en su apuesta por la democratización de los cuidados, son espacios pensados para complementar la atención que proveen las familias, las administraciones públicas y el sector privado. En este marco se analiza cuáles son los alcances y limitaciones de las experiencias comunitarias para apoyar la redistribución de los cuidados de las personas mayores hacia todos los actores sociales y para reducir las desigualdades de género localizadas en el seno de la provisión de sus cuidados. Se utilizó una metodología cualitativa y el estudio de dos casos de cuidado comunitario, junto con el análisis de datos secundarios sobre un servicio público de cuidados. Los resultados demuestran las potencialidades de los espacios comunitarios para socializar la atención a las demandas relacionales de las personas mayores, aunque en sus prácticas no cuestionan la división sexual del trabajo ni el protagonismo familiar en la organización social de los cuidados.
DAKWAH DAN NEGARA
Authors: Taqwa Taqwa
Published: April 2020

Dakwah dalam arti ajakan kepada kebaikan merupakan kewajiban. Tetapi dalam mewujudkan kewajiban tersebut, setiap orang memerlukan jaminan stabilitas dan undang-undang negara. berdasarkan hubungan tersebut, artikel ini ingin melihat bagaimana negara secara politis memberikan ruang bagi kegiatan dakwah dan bagaimana kegiatan dakwah mendukung cita-cita liuhur negara. Melalui pendekatan sosiologis dan politik, artikel ini menganalisis hubungan yang saling menguntungkan jika kegiatan dakwah dilindungi oleh negara dan pencapaian tujuan bernegara disuarakan melalui kegiatan dakwah. Berdasarkan analisis yang dilakukan ditemukan bahwa sikap inklusifisme merupakan titik temu yang harus dipertemukan dakwah dan negara dalam suatu misi yang amat mulia. Dakwah dilakukan harus berwawasan inklusif dan sebaliknya, negara harus juga menjunjung tinggi inklusifisme agar segala bentuk ajakan kepada kebaikan tidak dimonopoli oleh kelompok tertentu atau melegiyimasi hanya faham tertentu saja.Keywords: Dakwah, Negara, Inklusifisme, Umat
Politik Kooptasi Karaeng Terhadap Hak Pilih Buruh Tani Pada Pilkada Serentak Tahun 2015 Di Kabupaten Bulukumba
Authors: . Yuliana , Jurdi Syarifuddin , . Fajar
Published: April 2020

Studi ini membahas tentang politik kooptasi Karaeng terhadap hak pilih Buruh Tani pada Pilkada Serentak tahun 2015 di Desa Bontomacinna Kec. Gantarang Kab. Bulukumba. Jenis penelitian ini adalah penelitian kualitatif dengan pendekatan deskriptif yang berusaha menggambarkan, memahami, dan menafsirkan makna suatu peristiwa tingkah laku manusia. Penelitian ini menggunakan teori Patron-Klien untuk memahami Politik Kooptasi yang sedang berlangsung di Bulukumba. Karaeng yang berkuasa dalam kepemilikan lahan pertanian membutuhkan Buruh Tani untuk menggarap sawahnya dan sebaliknya Buruh Tani membutuhkan pekerjaan sebagai mata pencahariannya.  Relasi yang terbangun diantara dua aktor tersebut melahirkan pengooptasian hak pilih para Buruh Tani.
IMPLEMENTASI PEMBELAJARAN TEMATIK DENGAN PENDEKATAN KONTEKSTUAL BERBAZIS KARAKTER RELIGIUS SEBAGAI UPAYA MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR SISWA SD
Authors: Rohmanurmeta Fauzatul Ma’rufah
Published: April 2020

Thematic learning is a learning that integrates various subjects in various themes. The low activity and learning outcomes in the students' thematic learning are thought to be caused by teachers still using conventional methods. Teachers never bring learning material into the real world. Students only understand a little about the subject matter and feel depressed when the classroom learning process takes place. This study aims to improve the activity and learning outcomes on thematic learning by using contextual approach of based on religious. The approach used in this study is a qualitative approach and is a classroom action research (PTK). Based on the results of data analysis found that the average score of student learning activities in cycle I is 12.23 and in cycle II is 15.14. While the average score of student learning outcomes in the first cycle is 61.88 and on the second cycle is 75.55. The results showed that there is an increase in activity and learning outcomes of fourth graders on integrative thematic learning with contextual approach of based on religious..
PENERAPAN MEDIA WAREK (WAYANG KARAKTER) UNTUK MENUMBUHKAN NILAI RELIGIUS PADA PEMBELAJARAN MENYIMAK SISWA KELAS 1 SEKOLAH DASAR
Authors: Pratiwi Cerianing Putri
Published: April 2020

The purpose of this study is to know the application of wayang media characters to grow religious values on learning listening to grade 1 students of SDN Plangkrongan 3. Type of this research is descriptive qualitative research. The data in this research are verbal data and nonverbal data. Verbal data that is the recording of the application of wayang characters media to cultivate religious values on learning listening to grade 1 students of SDN Plangkrongan 3. Nonverbal data is the evaluation of listening ability. In this research, the subjects are the first grade teachers of SDN Plangkrongan 3 and the 1st grade students of SDN Plangkrongan 3. Data collection techniques in this research are (a) observation, (b) interview, and (c) test, (d) documentation. In this research data analysis techniques using interactive data analysis, there are three steps: data reduction, data presentation, and conclusion. Implementation of wayang characters media to cultivate religious values on learning listening to grade 1 students of SDN Plangkrongan 3 is already running in accordance with the plan and learning objectives have been achieved. From the results of the evaluation listening given, the results of listening to students is good enough. The average grade of grade V SDN Plangkrongan 3 is 85.6% of the total students 9. All students have been able to answer questions from the fairy tales that have been heard.
POSITIVE PSYCHOLOGY: PERSONALITIES, MAJOR ISSUES, ADVANTAGES AND DISADVANTAGES
Authors: Febrianingsih Dian , Chaer Moh. Toriqul
Published: April 2020

Since the beginning of the emergence of Psychology flow (the flow of behaviourism), seen as a man filled with mechanical problems. This flow then sees the problem that exists in humans, not to mention with the view of psychoanalysis who viewed the memories of the past as the cause of suffering that exists today. That's why psychology that deals with the problem often referred to as negative psychology, because in its more to the negative side of human pathological. Psychology meant only limited offer of therapy over psychiatric problems. In fact, humans do not just want to be free of the problem, but also crave happiness. Martin Seligman, a psychologist expert study of optimism, pioneered a revolution in psychology through the positive psychology movement. Positive psychology positive emotions associated with the excavation, such as happy, kindness, humour, love, optimistic, kind, and so on. Positive psychology is not intended to replace or eliminate suffering, disadvantage or disruption (soul), but rather to add to the Treasury or to enrich, as well as to understand scientifically about the human experience.
PENERAPAN MEDIA AUDIO CERITA RAKYAT LOKAL MAGETAN UNTUK MENUMBUHKAN NILAI RELIGIUS DALAM PEMBELAJARAN BAHASA INDONESIA SISWA KELAS V
Authors: Widyaningrum Heny Kusuma
Published: April 2020

The objectives of this study are to (1) plan teaching learning Indonesian with media audio of local folklore of Magetan to cultivate religious values in MI Nurul Islam Tanjung Bendo, Magetan, (2) do teaching learning Indonesian with media audio of local folklore of Magetan to cultivate religious values in MI Nurul Islam Tanjung Bendo, Magetan, and (3) evaluate teaching learning Indonesian with media audio of local folklore of Magetan to cultivate religious values in MI Nurul Islam Tanjung Bendo, Magetan.  This research using qualitative research descriptive. Source of the data in this study are both learning activities conducted by the teachers and students, and documentation. Techniques collecting data used was interviewing and documentating. The results showed that (1) planning of teaching learning is in the form of lesson plan (RPP) and the preparation of the media audio is in the form of recording, and also the tests (2) teaching learning Indonesian is based on the lesson plans, settig up a teaching materials and software learning. (3) evaluating the teachig learning was done in the form of written and oral test.
MANAGEMENT OF LEARNING ASSESSMENT USING CURRICULUM 2013 (CASE STUDY IN ISLAMIC PRIMARY SCHOOL (MI) MUHAMMADIYAH 5 WONOASRI PONOROGO - EAST JAVA - INDONESIA)
Authors: Ikhwan Afiful
Published: April 2020

The teaching and learning process really requires an assessment to find out the effectiveness of the learning that has been done. Assessment in the learning process aims to determine various issues related to development and reciprocity, so that learning is expected to be oriented towards developing an assessment of the quality of learning in school. The results of the assessment can be used by the teacher to improve learning activities. In this case, the assessment must be seen as an important thing that can give ideas for the teacher to carry out further learning. General subjects in MI Muhammadiyah 5 Wonoasri use the KTSP curriculum. In line with the characteristics of the competency-based curriculum that is oriented to mastery of competencies, the assessment system applied is in the form of a competency-based assessment system. Thus the standard of educational assessment for competency-based curriculum is a standard assessment system that is oriented to the level of mastery of competencies targeted in the curriculum. In the 2013 curriculum carried out on religious subjects, the assessment carried out was authentic assessment.
AMBIVALENSI RADIKALISME AGAMA DALAM PERSPEKTIF MUHAMMADIYAH
Authors: Rohmadi Rohmadi
Published: April 2020

There is no sexiest word besides Radicalism. Its existence often makes people stricken with fear. Even those who guessed that the end of radicalism was a brutal act of terrorism. The end of the religion is related. Various types of prevention are carried out by various official governmental and private institutions. The aim is none other than so that the ideas that lead to acts of terror can be stopped. In understanding the meaning of radicalism, many are confused, because if it is traced, the equivalent of the word radicalism is not in accordance with the meaning. Because the meaning of the radik is root / rooted (meaning deep thinking / philosophizing), while people do too much, they may not necessarily think deeply. Meanwhile, the word ism itself which contains the meaning of a notion, should be distinguished by an act that ends brutally. Herein lies the error, the word used to describe this should be extremism. Because there are always people who overdo it.That the symptoms of radicalism among Muslims in the post-New Order era can be seen as an 'act of identity' carried out in order to respond and answer the crisis of identity they experienced in the midst of dramatic and dramatic changes that occurred in Indonesia in the early phase of transition to democracy. not right if always associated with religion. But it does not mean that in religion there is no action, in any religion there are always people who interpret religion in a textual way, raping the scriptures for their interests. So that short-sightedness leads to brutal action / terror. The Muhammadiyah which is the main guardian of the Unitary State of the Republic of Indonesia will also not agree with various kinds of violence, occupation and deviant acts. It's just that Muhammadiyah suggested that the handling that smelled of Islam be carried out with a persuasive approach. Therefore, if the government insists on repressive actions, new terrorists will emerge. The emergence of radicalism cannot be separated from the long history of this nation, herein lies the ambivalent nature that we must seek and solve together, so that such ideas do not reappear.
Creating a geodemographic classification model within geo-marketing: the case of Eskişehir province
Authors: Ergun Mustafa , Uyguçgil Hakan , Atalik Özlem
Published: April 2020

Businesses today face great competition in their operations, making it necessary for them to adopt a “customer-oriented” approach. In this competitive environment, where customers are more valuable, enterprises accrue great advantages from an understanding of the characteristics of the target audience in all dimensions. This is where the importance of geo-marketing and demographic segmentation for enterprises emerges. This study performed a geo-demographic segmentation of the urban neighbourhoods of Eskişehir province and sought to determine the characteristics of the people living in these neighbourhoods at the household level. The Groups created using the SPSS package program as well as Principal Components Analysis (PCA) and Hierarchical Clustering Analysis were then mapped on the GIS platform as urban neighbourhoods.
Location tendencies in developer investments in the residential market in Łódź
Authors: Antczak-Stępniak Agata
Published: April 2020

One of the most critical decisions that every developer has to make is what location will be the best for his investment. This depends on different factors that change over the years. Therefore, the aim of the article is to identify and assess tendencies in the location of developers’ investments based on the example of the activity of Łódź developers. In the past, the share of investments on outskirts was more significant, which in the case of Łódź resulted from several reasons – mainly the small number of local plans, the abuse of planning decisions, and low land prices on the outskirts. Therefore, the current tendency of locating a significant part of investments in the city centre seems to be a very positive phenomenon. It reduces the costs of these investments and creates a more compact urban built-up area.
The Combined Use of Balanced Scorecard and Data Envelopment Analysis in the Banking Industry
Authors: Bošković Aleksandra , Krstić Ana
Published: April 2020

Background: Starting from the limitations of different single-method approaches to measuring the organizational efficiency, the paper is focused on covering both the financial and non-financial factors of this concept by combining two methods, namely the Balanced Scorecard (BSC) and Data Envelopment Analysis (DEA).

Objectives: The main goal of the research in the paper is to show that certain deficiencies in the independent application of each method are eliminated by combining these methods.

Methods/Approach: The paper combines two methods, BSC and DEA, to measure the relative efficiency of all branches of a bank in Serbia.

Results: Results confirmed that the combined use of the named methods facilitates measurement of organizational efficiency by using both financial and non-financial indicators.

Conclusions: The paper shows that it is possible to achieve synergetic effects in the evaluation of organizational efficiency in the banking sector if BSC is applied first, to define goals within four perspectives, and then four DEA models are developed to measure efficiency in each perspective.
Do Business Ethics and Ethical Decision Making Still Matter: Perspective of Different Generational Cohorts
Authors: Klopotan Igor , Aleksić Ana , Vinković Nikolina
Published: April 2020

Background: Research in business ethics shows that individual differences can influence one’s ethical behaviour. In addition, variability in attitudes towards ethical issues among different generations is emphasized. Still, results are inconclusive and call for an additional examination of possible generational differences with regard to ethics and ethical values.

Objectives: Our objective is to test if the perception of the importance of business ethics, attitudes towards ethical issues and aspects influencing ethical behaviour, differ among the four generations currently present in the workforce.

Methods/Approach: Theoretical implications are empirically tested on a sample of 107 individuals, members of Baby Boomers, Generation X, Millennials and Generation Z.

Results: In general, the results indicate that there are little or no generational differences related to the analysed aspects of business ethics. The significant difference is present only in the importance given to factors that influence ethical decision-making: (i) formal rules and procedures, (ii) performance management system and (iii) job pressures, between the members of Generation Z and older generations.

Conclusions: In spite of employee diversity, ethics continues to present an important aspect of the business environment. Thus, organizations need to be oriented towards creating ethical leaders and a positive ethical climate that ensures that ethical values and behaviours are present throughout the organization.
Impact of Institutional Quality on Foreign Direct Investment Inflow: Evidence from Croatia
Authors: Jurčić Ljubo , Franc Sanja , Barišić Antea
Published: April 2020

Background: Foreign direct investment (FDI) flows are unevenly distributed around the world and determined by different factors. The literature points out to economic and non-economic determinants of FDI flows, while the latter have shown to generate ambiguous effects across regions.

Objectives: The primary goal of this paper is to examine the relationship between non-economic determinants and the FDI inflow in Croatia from 1996 to 2017, thus capturing different periods of the economic cycle. The importance of non-economic institutional determinants of FDI is analysed in parallel with the economic determinants.

Methods/Approach: This study uses available data on FDI per capita and a set of non-economic (institutional) and economic determinants. We employed the OLS regression analysis to determine the significance of FDI inflow determinants and compare the relevance of non-economic to economic factors.

Results: Results of this exploratory study show that institutional quality variables included in the model (regulatory quality, political stability, and government effectiveness, the rule of law and control of corruption) could not be pointed out as important determinants of the FDI inflow in Croatia. Economic variables GDP per capita and average gross wage prove to be important in determining the FDI inflow in Croatia.

Conclusions: The research results point to a variety of FDI determinants among countries and economic cycle periods. Given the evidence from Croatia, variations, especially in institutional determinants, might be caused by the diverse FDI inflow characteristics and specificities of receiving economies.
Croatian Defense Industry Competitiveness Cluster: Knowledge Management and Innovation Perspective
Authors: Jurčić Marina , Lovrenčić Sandra , Kurnoga Nataša
Published: April 2020

Background: Industry clusters and their relationship with the organization’s success, competitive advantage and innovations have been gaining research interest for decades, with the recent focus on defence industry.

Objectives: The aim is to investigate how Croatian Defense Industry Competitiveness Cluster (CDICC) fosters the knowledge management and innovation performance of its members.

Methods/Approach: Survey has been performed on a portion of CDICC members, and responses have been analysed using the factor analysis and the correlation analysis.

Results: The results indicate that CDICC actively contributes to knowledge creation and acquisition, innovation performance and market performance of its members. However, the analysis revealed that knowledge storage and knowledge dissemination are not sufficiently supported by CDICC.

Conclusions: The current problems with the various aspects of knowledge management within a cluster provide a direction for overcoming possible obstacles for further development of industrial clusters.
A Content Analysis of International Airline Alliances Mission Statements
Authors: Seo Gang-Hoon
Published: April 2020

Background: Mission statements have come to play an important role as tools for organizational value sharing.

Objectives: This study aims to shed light on what types of values are highlighted in international airline alliance members’ mission statements, and whether there are significant differences or not.

Methods/Approach: Quantitative content analyses have been conducted with the goal to investigate mission statements of 61 members of international airline alliances: Star Alliance, SkyTeam, and oneworld.

Results: Frequency test outcomes reveal that “philosophy”, “self-concept” and “location” are the predominant components in oneworld, “philosophy” is the primary component in SkyTeam, and “philosophy” and “customer” are the focal components of Star Alliance. According to chi-square tests, Star Alliance members emphasize “customer” more often than others do, and oneworld members highlight “profitability” more often. One-way Anova tests with a post hoc analysis reveal that Star Alliance members cover more components than SkyTeam.

Conclusions: The theoretical implication of these findings is that they reveal the existence of unique values among international airline alliances members offering a competitive advantage. As a practical implication, these findings will be helpful for international airline alliances and airline managers for comparative purposes.
Generator of a Toy Dataset of Multi-Polygon Monochrome Images for Rapidly Testing and Prototyping Semantic Image Segmentation Networks
Authors: Romanuke Vadim
Published: April 2020

In the paper, the problem of building semantic image segmentation networks in a more efficient way is considered. Building a network capable of successfully segmenting real-world images does not require a real semantic image segmentation task. At this stage, called prototyping, a toy dataset can be used. Such a dataset can be artificial and thus may not need augmentation for training. Besides, its entries are images of much smaller size, which allows training and testing the network a way faster. Objects to be segmented are one or few convex polygons in one image. Thus, a toy dataset generator is created whose complexity is regulated by the number of edges in a polygon, the maximal number of polygons in one image, the set of scale factors, and the set of probabilities determining how many polygons in a current image are generated. The dataset capacity and image size are concurrently adjustable, although they are much less influential.
A 79 dBΩ 1.2 GHz Low-Noise Single-Ended CMOS Transimpedance Amplifier for High-Performance OTDR Applications
Authors: Romanova Agata , Barzdenas Vaidotas
Published: April 2020

The work reports on the design and performance of a low-noise low-cost CMOS transimpedance amplifier (TIA). The proposed circuit shall be employed in optical time-domain reflectometers and is implemented using an affordable 0.18 µm 1.8 V CMOS process. The approach preserves the benefits of a classical feedback structure while addressing the noise problem of conventional feed-forward and resistive feedback architectures via the usage of noise-efficient capacitive feedback. Circuit-level modifications are proposed to mitigate the voltage headroom and DC current issues. The suggested design achieves a total gain of 82 dBΩ (79 dBΩ after the output buffer) within the bandwidth of 1.2 GHz while operating with a total input capacitance of 0.7 pF. The simulated average input-referred noise current density is below 1.8 pA/sqrt(Hz) with the power consumption of the complete amplifier including the output buffer being 21 mW.
Movement Variability During the Flight Phase in a Single Back Sideflip (Wildcat) in Snowboarding
Authors: Bacik Bogdan , Kurpas Wioletta , Marszałek Wojciech , Wodarski Piotr , Sobota Grzegorz , Starzyński Michał , Gzik Marek
Published: April 2020

Understanding the structure and variability of motion is essential for sports technique development and an effective training design. Biomechanical analysis is particularly important in new disciplines with spatially complex motions, such as snowboarding. This study aimed to evaluate the level of variability of the kinematic variables in a single backside snowboard flip known as a “wildcat”. Forty-six correct flips performed by 7 experienced athletes (age: 24.9 ± 4.34 year; body mass: 71.6 ± 12.87 kg; body height: 177.4 ± 6.99 cm) were recorded using an optoelectronic VICON system in the controlled setting of an indoor freestyle park. Athletes were equipped with special boards with wheels and the geometry of the ramps corresponded to the actual on-snow conditions. The analysis revealed two distinct single flip strategies, which differed in the way the tuck position was sustained. For all the measured variables, the coefficient of variation was computed, which allowed to identify the athlete with the highest (average 45.3%) and lowest (average 20.5%) variability of kinematic variables. Moreover, it was shown that the lowest values of the coefficient of variation occurred at the end of the grouping phase (average 14%) and that among all the different variables, those related to the duration of motion were most unstable (average 63%, SD = 48.5%).
Physical and Physiological Response to Different Modes of Repeated Sprint Exercises in Basketball Players
Authors: Paulauskas Rūtenis , Kamarauskas Paulius , Nekriošius Ričardas , Bigwood Nicholas Malcolm
Published: April 2020

The aim of this study was to investigate changes in physical and physiological responses to different modes of repeated sprint exercise by measuring speed, total time (sum of sprints), fatigue index, heart rate, local oxygen saturation, total haemoglobin content, and blood lactate. The volume of the physical load (distance, work and rest ratio) was the same in both exercises, but load specifics were different. The first mode consisted of 10 x 30 m sprints (with one change of direction) interspersed with 30 s of passive recovery, while the second mode of 20 x 15 m shuttle sprints interspersed with 15 s of passive recovery. Both exercise modalities were repeated three times with a five-minute rest interval between bouts with 7 days of recovery between each testing condition. Twelve highly trained male basketball players volunteered to participate in this study. Our study showed that different modes of repeated sprint exercises elicited a different physical response and metabolic demand. Longer sprints with directional changes placed a higher demand on the anaerobic glycolytic system compared to straight and more frequent sprint exercises. However, players’ fatigue was more noticeable in shorter and more frequent sprints. Heart rate responses and local use of O2 showed a similar activity of aerobic reactions through the different exercises. During the sprints, players’ SmO2 fell to 40% and recovered to the level of about 80% during passive rest intervals without showing differences in both modalities. This suggests that both types of sprint exercises can similarly stimulate aerobic metabolism.
Heart Rate Variability is Correlated with Perceived Physical Fitness in Elite Soccer Players
Authors: Ravé Guillaume , Zouhal Hassane , Boullosa Daniel , Doyle-Baker Patricia K. , Saeidi Ayoub , Abderrahman Abderraouf Ben , Fortrat Jacques-Olivier
Published: April 2020

Heart Rate Variability (HRV) has been typically used to monitor athletes’ physical fitness readiness. The supine position maximizes parasympathetic tone, which is important for monitoring in continuous aerobic sports, however, this is not the case of team sports that rely on anaerobic intermittent bouts, thus increasing sympathetic activation and vagal withdrawal. We hypothesized that HRV during sympathetic activation and vagal withdrawal would be a useful marker to evaluate perceived physical fitness in team sports. HRV was measured in both supine and standing positions during the mornings of 4 match days in 14 professional players. The supine Root Mean Square of the Successive Differences (RMSSD), as well as spectral analysis indices were recorded. Perceived physical fitness was assessed after each match by means of a visual analogue scale (VAS). Supine RMSSD was moderately correlated with perceived physical fitness (rho = 0.416), however, larger correlations were observed for supine and standing spectral indices (rho > 0.5). Correlation between RMSSD and Total Power was very large, thus questioning the usual interpretation of RMSSD (rho > 0.7). Standing Spectral HRV analyses may be a useful method for evaluating perceived physical fitness in the context of team sports. RMSSD may reflect the overall variability of HR and not only the parasympathetic influence, as observed in the current study.
Water Polo Shooting Performance: Differences Between World Championship Winning, Drawing and Losing Teams
Authors: Canossa Sofia , Abraldes José Arturo , Estriga Luísa , Fernandes Ricardo J , Garganta Júlio
Published: April 2020

Shooting performance of globally ranked winning, drawing and losing water polo teams was compared, and technical and tactical success indicators were identified. In total, 886 shots from a world championship final round were videotaped and teams were clustered for a performance evaluation (considering differences between game outcomes). Shooting speeds were assessed by a radar, with higher values observed at further distances from the goal than in the central area close to the goal (p ≤ 0.00, ES: 2.54). Shots tended to be more frequent from the central corridor, with ≤50% and >75% relative shot efficacy attained from field areas 3 and 6; winning teams obtained better results. Furthermore, winners had greater success than losers when shooting from field area 2 (p ≤ 0.04, ES: 1.13) and towards the goal zone 2 (p < 0.03, ES: 1.10). They also attained better efficacy regarding shots towards goal zone 1, had better efficacy on the part of centre-forwards (p ≤ 0.05, ES: 0.85-1.27), and were more effective regarding shots without a frontal defensive block. In addition, contingency analysis highlighted shots performed from field area 6, without a defensive block, toward the bottom left goal corner, and through man-up play as success indicators (all for p ≤ 0.005). We concluded that world-level winning teams homogeneously distributed their shot opportunities at the second offensive line with balanced efficacy, creating variability and uncertainty in their opponents’ defensive action. Elite level players must be capable of interpreting game situations with intelligence and proper decision making. This information may be useful for improving teams performance.
Effects of Lower Extremity Muscle Fatigue on Knee Loading During a Forward Drop Jump to a Vertical Jump in Female Athletes
Authors: Wong Tzu Lin , Huang Chen Fu , Chen Po Chieh
Published: April 2020

The aim of this study was to examine changes in the kinematic and kinetic parameters of female athletes performing a forward drop jump to a vertical jump under muscle fatigue condition. Twelve female college athletes performed a forward drop jump to a vertical jump with and without muscle fatigue conditions. A motion capture system and two AMTI force plates were used to synchronously collect kinematic and kinetic data. Inverse dynamics were implemented to calculate the participant’s joint loading, joint moment, and energy absorption. A paired sample t-test was used to compare statistical differences between pre-fatigue and post-fatigue conditions (α = .05). The forward trunk lean angle at initial foot contact, as well as the knee range of motion, total negative work and energy absorption contribution of the knee joint during the landing phase were significantly decreased under post-fatigue condition. The increased peak vertical ground reaction force and peak tibial anterior shear forces were also found under post-fatigue condition. These results indicated that muscle fatigue caused participants to change their original landing posture into stiff landing posture and decrease the energy absorption ability, which increased the tibial anterior shear forces. Therefore, female athletes should appropriately increase the knee flexion angle under muscle fatigue condition to reduce the risk of anterior cruciate ligament injuries.
Kinematic Analyses of Parkour Landings From as High as 2.7 Meters
Authors: Dai Boyi , Layer Jacob S. , Hinshaw Taylour J. , Cook Ross F. , Dufek Janet S.
Published: April 2020

Developing effective landing strategies has implications for both injury prevention and performance training. The purpose was to quantify the kinematics of Parkour practitioners’ landings from three heights utilizing four techniques. Seventeen male and three female Parkour practitioners landed from 0.9, 1.8, and 2.7 m utilizing the squat, forward, roll, and stiff landing techniques when three-dimensional kinematics were collected. The stiff landing demonstrated the shortest landing time, and the roll landing showed the longest landing time for 1.8 and 2.7 m. Roll landings demonstrated the greatest forward velocities at initial contact and at the end of the landing. Stiff landings showed the greatest changes in vertical velocity during the early landing, while roll landings showed the least changes for 0.9 and 1.8 m. Both roll and stiff landings generally resulted in decreased changes in horizontal velocity during the early landing compared to squat and forward landings. The four landing techniques also demonstrated different lower extremity joint angles. Stiff landings may increase injury risk because of the quick decrease of vertical velocities. Roll landings allow individuals to decrease vertical and horizontal velocities over a longer time, which is likely to decrease the peak loading imposed on the lower extremities.
The Model M Method and Its Contribution to a Socially Responsible Society
Authors: Hrast Anita , Mulej Matjaž
Published: April 2020

Model M means being young and being a role model for others in finding innovative employment or creating one’s own employment, and thus becoming and remaining an active citizen. In years 2012-2018, IRDO – Institute for the Development of Social Responsibility – implemented the project Model M Slovenia. The project started in the Podravje region, in years 2012-2014, with a small amount of money invested by the local community (The City Municipality of Maribor). Later (in years 2016-2018), it became a nation-wide Slovenian project funded by the EU’s Social Fund and the Republic of Slovenia. The purpose of the project was to empower youth with training, networking, counselling and active participation in the society to create their own models of success. In this paper, we present the Model M method (MMm) that we have developed through the Model M Slovenia project and its social impact on the employment of youth in Slovenia. With the Social Return on Investment (SROI), a method for social impact measurement, we present how the funds invested in the local pilot project were later multiplied tenfold on a national level within the project Model M Slovenia. The originality of the MMm, as presented in this paper, is in its requisitely holistic approach to youth training in terms of personal and social responsibility. The MMm is accelerating the (self) employment of youth and other unemployed persons. The MMm was created by a team of business practitioners and social responsibility researchers. Their aim was to practice and develop social responsibility, interdependence and requisitely holistic approach as a systemic behaviour, suggested by the global humankind in the ISO 26000 guidance standard.
A Study of the Dynamics of Soil Erosion Using Rusle2 Modelling and Geospatial Tool in Edda-Afikpo Mesas, South Eastern Nigeria
Authors: Amah Joseph I. , Aghamelu Okechukwu P. , Omonona Olufemi V. , Onwe Ikechukwu M.
Published: April 2020

The Revised Universal Soil Loss Equation (RUSLE) was used to study the soil erosion processes in Edda-Afikpo mesas, Lower Cross River watersheds,Nigeria. The mesas occupy an area estimated at 60km2 on a surface relief of about 284m. DEM data, satellite images and basemap of the area were used. Remotely sensed data were ground-truthed through extensive field works. The results show that the process is facilitated by the Trifecta of hill slope hydrology, geology and land use practices. Steep hill Slope of values 78 % at the major hot spots, very fragile, dry and non-plastic sandy soils all aid sediment detachment. Analysis of the index properties which include Liquid Limit(LL) of 25-30,moisture content(w%) of 5.9-7.4,permeability of 1.541x10-3 – 1.636x10-3 cm/s and shear strength of 36-42 KN/m2 predispose the sediments to detachment and erosion. Based on the analysis, the amount of soil loss in the project area is about 1373.79 ton per year. Soil erosivity factor is high at the mesas(5023.83 MJ mm ha−1 h−1 yr−1 - 5069.51 MJ mm ha−1 h−1 yr−1) The sandy layer attain thickness of 50m-60m in places and with high pore pressure development, slope failure are triggered during intense storm events. In terms of vulnerability level in erosion risk, high to very high constitute 4.1% of the watershed which translate to 5.05km2 of the 59km2. The various processes occur simultaneously and are exacerbated by human factors through seasonal bush burning and development along drainage lines. The study reveals that 18.8% of the available land for development is at high to very high risk of erosion. The soil loss model has been validated and the hotspots from the map coincide with the gully sites. The results of this research can therefore be used for conservation and adaptation purposes.
Geology and Petrology of Omzha Block, Zhob Ophiolite, northern Balochistan, Pakistan
Authors: Ahmed Ali , Kakar Muhammad Ishaq , Naeem Abdul , Ahmed Nisar , Khan Mehrab , Panezai Muhammad
Published: April 2020

The Zhob Ophiolite is divided into three detached blocks including the Omzha block. The Omzha block is mapped and divided into lithological units such as ultramafic rock, mafic-felsic rock, and volcanic–volcaniclastic–pelagic rocks. These units are quite deformed and mixed up and are associated with one another by thrust faults. Petrography and geochemistry divide them into gabbro, diorite, plagiogranite, pheno-tephrite and trachy-andesite basalt, trachy basalt, chert, limestone, and mudstone. The ultramafic rocks are dominantly serpentinized harzburgite, dunite, and a minor lherzolite. Petrography of peridotite shows that it may be depleted in nature and may have residual after processes such as partial melting and the melt-rock reaction of a lherzolitic source. The gabbroic rocks are less well-developed and highly deformed. They are cross-cut by diorite, plagiogranite and anorthosite’ intrusions. The gabbro may be the plutonic section of Omzha block’ crust while the intermediate-felsic igneous rocks may have formed by the anataxis of crustal gabbro. The volcanic–volcaniclastic–pelagic rocks unit may be corrected with Bagh complex found underneath the Muslim Bagh Ophiolite. The metamorphic sole rocks of Omzha block are highly deformed and dismembered are comprising of metamorphic facies such as amphibolite, quartz-mica schist, and greenschist.
Land Seismic Multiples Detection and Attenuation In Bornu-Chad Basin, Nigeria
Authors: Umoetok Dorathy B. , Uko Etim D. , Tamunobereton-ari Iyeneomie , Israel-Cookey Chigozie , Ebini Odukokoma N.
Published: April 2020

Three dimensional (3D) seismic survey was acquired and processed in Bornu-Chad basin, Nigeria with the aim of detecting and attenuating multiples to aid proper imaging of the subsurface. The 25.5km2 volume was processed using SeisUp processing software on a 32-Node Cluster Infrastructure (CI) hardware. Considering the imaging objectives and depth of interest of 1.2s-4.5s, the minimum, middle and maximum offsets were set at 500-2300m, 2500-4300m and 4500-7300m respectively. Since the study area comprised of dry open land and swampy Lake Chad, vibroseis and dynamite sources were used respectively. Charge depth was 0m (surface) for vibroseis and 25m dynamite. The dataset was first pre-conditioned, normalized, regularized before application of demultiple process. The detection and demultiple processes based on multiple characteristics of periodicity and velocity discrimination were applied as the multiples have comparable velocity with the primaries. The near-surface reverberations and short-period multiples were attenuated using predictive deconvolution and radon transform algorithms. High resolution radon was performed on post-migrated common-mid-point (CMP) gathers and stacked with 1kmx1km target line velocities. Internal multiples were detected and attenuated using data-driven methodology of extended internal multiple prediction (XIMP). Multiples detected were short, long period and interbed multiples on all frequencies ranges of 0 – 90Hz but useful seismic frequency range was between 20Hz and 70Hz. The frequencies and amplitudes of the primaries and multiples were very comparable, therefore great care was taken in the attenuation processes. The results of this work has produced better seismic section for interpretation of subsurface geology in the study area.
IoT-based safety monitoring from the perspective of construction site workers
Authors: Häikiö Juha , Kallio Johanna , Mäkelä Satu-Marja , Keränen Janne
Published: April 2020

Occupational safety and health is traditionally a challenging area in the labor-intensive construction industry as accidents at work and non-ergonomic work conditions lead to absences and premature retirement of construction workers. Recently, the rise of the Internet of Things (IoT) and its accompanying technologies (e.g. wearable technologies) has enhanced interest in the occupational safety and health of construction work. The level of technology acceptance among construction workers is a crucial element in the adoption of these technologies. The main objectives of this study are to enhance understanding about construction workers’ attitudes towards IoT-based data-intensive work safety and wellbeing solutions and to identify factors that can promote technology adoption. Data for the study was collected through an online survey of 4385 construction workers. Based on the survey data it seems that construction workers would accept the sharing and utilizing data collected from them in the worksite environment if it could help identify employee personal health risks or promote personal and colleagues' occupational safety. Respondents were most concerned about privacy and security regarding wearables in the workplace. It can be concluded that user acceptance and trust building are key components in the adoption of IoT-based occupational safety and health solutions. Future studies should investigate methods for actively involving construction workers in the design and development process of IoT-based work safety solutions and examine technological solutions that promote trust building among construction workers.