bluuebunny/crossref_metadata_2025 huggingface dataset:
Modified Student Success Skills for Students with Learning Disabilities: A Pilot Study
Authors: Zyromski Brett , Konrad Moira , Geiger Sarah
Published: January 2022

A modified version of the Student Success Skills (SSS) curriculum, designed to help address the need for intervention in executive functioning skills, metacognition skills, and social skills, was offered to a small group of students in eighth grade who were identified with learning disabilities to positively impact their learning strategies and knowledge. The purpose of this pilot study was to measure the effects of this modified version of SSS on students’ (a) skills and behaviors associated with improved school performance; (b) generalization of those skills to scenarios; and (c) school-related outcomes, including a teacher report. The study design applied a single subject multiple probe across students. The primary dependent variable measured in this study was the number of school-success-related skills and strategies students identified. Findings suggest a functional relation between the modified version of SSS and participants’ ability to name skills and behaviors associated with school success. The findings of the current study, as a collaboration with school counselors and special educators, provide a first step towards illustrating the impact of a modified SSS intervention with students with IEPs. Students reported enjoying and learning from the lessons.
Preteaching Words to Facilitate an Instructional Level in Reading with a Student with a Specific Learning Disability in Reading
Authors: Burns Matthew , Duesenberg-Marshall McKinzie , McCollom Elizabeth , McCree Nikita , Abdelnaby Heba
Published: January 2022

An appropriate level of challenge for reading, called the instructional level, consists of 93% to 97% known words within the text. The current study examined if an instructional level could be facilitated by preteaching words to a male second grade student identified with a learning disability in reading. Key and high-frequency words were pretaught before reading passages, which made up the experimental condition in a single-subject reversal design. A baseline condition was also used in which the child read from similar passages without preteaching words. Results suggested that preteaching the words led to a percentage of known words that fell within the instructional level, and increased fluent reading of the experimental passages. Implications for practice and suggestions for future research are included.
La aplicación de los Convenios de Ginebra en ausencia de un conflicto armado: El caso de la dictadura militar chilena
Authors: Fernández Carter Catalina
Published: January 2022

Este artículo examina las decisiones de la Corte Suprema chilena, que ha invocado y aplicado los Convenios de Ginebra a los hechos ocurridos durante la dictadura militar chilena que tuvo lugar entre 1973 y 1990. Como se explicará, dichas normas internacionales han permitido a la Corte dejar sin efecto las normas de amnistía dictadas por el régimen militar y no considerar la prescripción penal de los crímenes de encarcelamiento, tortura, asesinato y desaparición forzada, entre otros. Lo peculiar, sin embargo, es que la Corte Suprema ha pasado por alto los supuestos de aplicación del Derecho Internacional Humanitario, y se ha basado casi exclusivamente en la declaración de guerra dictada por la Junta de Gobierno en los primeros días de la dictadura. Ello le ha permitido dar una aplicación extensiva al Derecho Internacional Humanitario, que hace caso omiso a sus elementos fundamentales, incluyendo la distinción entre conflictos armados internacionales y no internacionales. En ese contexto, este trabajo cuestiona dicho razonamiento, exponiendo los riesgos que el mismo supone, y evidenciando la existencia de un régimen jurídico alternativo -el Derecho Internacional de los Derechos Humanos- que no solo otorga mayor protección, sino que además refleja adecuadamente la realidad de los hechos ocurridos durante la dictadura, y el abuso y violencia estatal del que fue víctima la población chilena, sin resistencia.
TIPOVI GLAGOLSKIH SITUACIJA U KOMPLEMENTU POČETNIH FAZNIH GLAGOLA U SRPSKOM JEZIKU
Authors: Kljakić Snežana
Published: January 2022

U ovom radu se govori o složenom predikatu, tj. o vrsti predikacije u okviru koje je uloga faznog glagola da modifikuje značenje leksičkog glagola u pogledu faznosti. Drugim rečima, proučavaju se semantički nepotpuni glagoli (fazni glagoli) i drugi punoznačni glagoli koji se nalaze u ulozi sintaksičkog i semantičkog komplementa. U obzir se uzima i uticaj faznih glagola na glagol u komplementaciji kao i kako pomenuti uticaj varira u zavisnosti od aspektualnih karakteristika glagola unutar komplementa. Istraživanje ima za cilj da odredi tipove glagolskih situacija koji se nalaze u dopuni, a analizom korpusa ustanovljeno je da se na datoj poziciji nalaze isključivo stanja i aktivnosti.
ДИРЕКТИВ И ПРЕТЊА ИСКАЗАНИ НЕЗАВИСНОСЛОЖЕНОМ РЕЧЕНИЦОМ СА КОНДИЦИОНАЛНИМ МЕЂУКЛАУЗАЛНИМ СЕМАНТИЧКИМ ОДНОСОМ
Authors: Шафер Марина
Published: January 2022

У раду се испитују независносложене реченице с кондиционалним међуклаузалним семантичким односом. Друга клауза има вредност говорног чина претње, док прва клауза, чије (не)остварење представља услов за ступање претње на снагу, има комуникативну функцију директива (наредбе/забране). Овакав распоред присутан је пре свега у раставним (нпр. Турска прети Хафтару: Пустите наше грађане, или ћете постати наша мета → Ако не пустите наше грађане, постаћете наша мета) и у саставним реченицама (нпр. Слушај, мали, направи још један проблем и имаћеш посла са мном → Ако направиш још један проблем, имаћеш посла са мном), а примери се увек могу трансформисати у кондиционалне реченице. За корпус су одабране домаће телевизијске серије различитих жанрова (хумористичке, драмске, криминалистичке), као и српски интернет портали. Осим прагматичких функција прве и друге клаузе, анализирају се и синтаксичко-семантичке одлике ових конструкција: везници, структура предиката прве и друге клаузе (различите комбинације глаголских облика, као и лексичка семантика глагола који граде предикате – нпр. употреба фазних глагола у првој клаузи), чести адвербијални детерминатори (нпр. детерминатор још једном у првој клаузи) и сл. Најчешћa синтаксичка комбинација јесте V1 (Imper.) + V2 (Fut1), али предикати могу бити формализовани и другим глаголским облицима, посебно у дисјунктивним реченицама (у којима се и у првој клаузи често јавља футур први). Клаузе су веома често повезане везником иначе, што је и очекивано, будући да он својом лексичком семантиком указује на кондиционални однос.
Menjaga Stabilitas Usaha Pasca Pandemi Covid-19 dengan Penerapan Akad Murabahah pada Pelaksanaan Investasi Syariah
Authors: Moh. Hamzah
Published: January 2022

Indonesia yang menjadi salah satu Negara di asia yang terdampak pandemi Covid-19 ini, baik dari sektor kesehatan, pendidikan dan sektor-sektor penting lainnya. Bahkan pada sektor ekonomipun menjadi sasaran dari dampak pandemi Covid-19 tersebut, sehingga banyak perusahaan, pabrik dan beberapa pelaku ekonomi mengalami kerugian yang cukup besar. Selain itu, dampak dari pandemi Covid-19 ini menyebabkan rendahnya sentiment investor terhadap pasar yang pada endingnya membawa pasar ke arah cenderung negative. Untuk mengurai kekhawatiran para investor tersebut, dalam penelitian ini akan memberikan sebuah konsep untuk menjaga stabilitas usaha pada pelaksanaan investasi. Dalam mempertegas content pada penelitian ini, terdapat tiga pokok permasalah yang akan dijawab, yaitu bagaimana perspektif hukum Islam tentang investasi, bagaimana tinjauan umum tentang akad murabahah, serta bagaimana cara menjaga stabilitas usaha dengan penerapan akad murabahah pada pelaksanaan investasi syariah. Penelitian yang merupakan jenis penelitian normatif ini akan menggunakan metode pendekatan konseptual, serta teknik analisis data bersifat analisis deskriptive dan argumentative. Dengan harapan bahwa konsep ini akan memberikan dampak yang positif terhadap perkembangan ekonomi dan terwujudnya kemaslahatan, serta terciptanya masyarakat adil makmur yang diridhoi Allah SWT. (Indonesia which is one of the countries in Asia that has been effected by the covid -19 pandemic, both from the health sector, education and other important sectors. Even in the economic sector was targeted by the impact of the Covid-19 pandemic, so that many companies, factories and some economic actors suffered considerable losses. In addition, the impact of covid-19 pandemic caused low investor sentiment towards the market which in the end led the market to tend to be negative. To unravel the concerns of these investors, in this study will provide a concept to maintain business stability in the implementation of investments. In emphasizing the content of this research, there are three main issues that Will be answered, namely how is the perspective of islamic law on Investment, how is an overview of murabahah contracts, and how to maintain business stability by implementing murabahah contracts in the implementation of Sharia investment. Reseach which is a type of normative research will use conceptual approach methods, as well as descriptive and argumentative data analysis techniques. It is hoped that this concept will have a positive impact on economic development and the realization of benefits, as well as the cration of a just and prosperous society blessed by Allah SWT).
Optimalisasi Zakat Digital Melalui Penguatan Ekosistem Zakat di Indonesia
Authors: Rohmaniyah Wasilatur
Published: January 2022

Transformasi digital telah terjadi di segala aspek kehidupan, tak terkecuali pada penyelenggaraan zakat secara global. Digitalisasi zakat yang diterapkan pada pembayaran zakat maupun pengelolaan dan distribusi zakat merupakan upaya untuk dapat mencapai efektifitas, efisiensi dan jangkauan yang lebih luas. Tulisan ini membahas tentang urgensi digitalisasi zakat dan upaya mengoptimalkan digitalisasi zakat tersebut melalui penguatan ekosistem zakat di Indonesia. Tulisan ini menunjukkan bahwa; pertama, digitalisasi zakat merupakan suatu keniscayaan di zaman digital saat ini. Kedua, digitalisasi zakat akan optimal dengan penguatan ekosistem yang melingkupinya yaitu lembaga amil zakat, lembaga keuangan syariah, pemerintah dan masyarakat; ketiga, digitalisasi zakat merupakan sebuah alat atau media yang tidak hanya dapat meningkatkan realisasi zakat dan pendayagunaannya, namun juga serta merta meningkatkan trust dan pelayanan kepada masyarakat. (Digital transformation has occurred in all aspects of life, including the implementation of zakat globally. Digitization of zakat which is applied to zakat payments as well as zakat management and distribution is an effort to achieve effectiveness, efficiency and a wider reach. This paper discusses the urgency of digitizing zakat and efforts to optimize the digitization of zakat through strengthening the zakat ecosystem in Indonesia. This paper shows that; First, the digitization of zakat is a necessity in today's digital age. Second, the digitization of zakat will be optimal by strengthening the ecosystem that surrounds it, namely zakat amil institutions, Islamic financial institutions, the government and the community; Third, digitizing zakat is a tool or media that can not only increase the realization of zakat and its utilization, but also increase trust and service to the community)
Funkcjonowanie aplikacji mobilnych pomocnych w walce z pandemią COVID-19 w świetle wybranych norm prawnych
Authors: Szalonka Adrianna
Published: January 2022

Celem niniejszego artykułu jest dokonanie przeglądu źródeł prawnych, które stanowią podstawę do wdrożenia zdrowotnych aplikacji mobilnych podczas trwającej na świecie pandemii. W pracy sformułowano hipotezę badawczą — normy prawne gwarantują bezpieczeństwo ochrony danych osobowych w funkcjonowaniu i korzystaniu z aplikacji. Na podstawie dokonanego przeglądu można stwierdzić, że normy prawa unijnego oraz polskiego gwarantują bezpieczeństwo i ochronę danych korzystających obligatoryjnie i nieobligatoryjnie. Gromadzone dane nie mogą być przetwarzane w celach komercyjnych i nie powinny być przetwarzane do nadzoru obywateli.
Key figurative fields in modern Russian prose
Authors:   Moscow State Pedagogical University, Nikolina Natalya A. , Petrova Zoya Y. ,   V.V. Vinogradov Russian Language Institute of the Russian Academy of Sciences
Published: January 2022

The article examines the key figurative fields in the texts of modern Russian prose. The authors analyse the works of A. Varlamov, E. Vodolazkin, A. Ivanov, A. Matveeva, Z. Prilepin. The purpose of the research is to identify and describe the key figurative fields of different types in modern fiction. The key figurative field is defined as a set of lexical units of one semantic field, acting as images of comparative constructions (metaphors and similes), which is directly related to the development of the theme and plot of the work, its ideological and aesthetic content, to the characteristics of the main characters, and performs a text-forming function in the work of fiction. The analysis has identified three main types of such fields: 1. The field, whose composition is determined by the theme of the work; 2. The field, whose choice of units is motivated by the type of the protagonist and his point of view; 3. The field, determined by the ideological and aesthetic content of the work as a whole. The choice of units in the key figurative field is determined by the intentions of the author of a literary work. The nature of the field development in the text reflects the peculiarities of the writer's idiostyle. The article shows that the key figurative field is associated in a literary text with the deployment of its cross-cutting motives. The authors note that the dominance of the key figurative field is often set by the title of the work, which in this case is metaphorical or symbolic.
Mestiçagem como problema visual
Authors: Rodrigues Tadeu Ribeiro
Published: January 2022

A partir da articulação entre imagens que suscitam questões raciais no contexto latino-americano – os regimes de visualidade sistematizados no México colonial em torno da mestiçagem/hibridização de diferentes grupos étnicos no século XVIII e a produção do artista brasileiro Paulo Nazareth na primeira década do século XXI – buscamos investigar possíveis elaborações poéticas e estratégias performativas que reposicionam enunciados acerca da formação de identidades nacionais na contemporaneidade latino-americana, destacando suas implicações hierárquicas, eugenistas e políticas na construção de determinado olhar diante dos corpos racializados.
Travessias atlânticas e “arte negra”
Authors: O’Neill Elena
Published: January 2022

Protestos contra o racismo, derrubada de estatuas de traficantes de escravos, requisições e promessas de restituição de artefatos africanos aos seus países de origem por parte de museus europeus foram alguns dos eventos que tiveram lugar em 2020. Mais recentemente, vários monumentos e memoriais que valorizavam o colonialismo europeu foram vandalizados ou derrubados na Colômbia no meio de protestos contra a atual administração; o ataque ao monumento a Borba Gato no bairro de Santo Amaro em São Paulo é mais um na lista de ações contra símbolos coloniais. No contexto de persistência das doutrinas sobre desigualdades raciais, esses eventos tornam necessário pensar algumas exposições com maior profundidade. Este artigo analisa algumas exposições de “arte negra” em Nova York e Montevidéu como exemplos da construção de um olhar estetizante, nem neutro nem espontâneo. Essa perspectiva construída foi forjada no início do século 20, no contexto de uma África colonizada, por meio de ações concretas e deliberadas iniciadas por um pequeno grupo de artistas de vanguarda, críticos, colecionadores e marchands. Sua responsabilidade na escolha das obras, nas exposições que organizaram e nas obras que publicaram, aponta para uma construção do “cânone” das artes africanas que sobrevive no Ocidente até hoje.
Arte sob ataque
Authors: Tavares Márcio
Published: January 2022

O artigo aborda o episódio de censura à exposição Queermuseu – Cartografias da Diferença na Arte Brasileira em 2017. O enfoque se dá para a forma como as redes reacionárias abordam a exposição e mais especificamente as cinco obras que foram as mais atacadas. Em análise estão as obras Cruzando Jesus Cristo com Deusa Schiva (1996), de Fernando Baril, as pinturas Travesti da lambada e deusa das águas (2013) e Adriano bafônica e Luiz França She-há (2013), de Bia Leite, Cena de interior II (1994), de Adriana Varejão, e Et verbum (2011), de Antonio Obá, que foram extensivamente difamadas através das redes sociais. O texto considera o modo como a cultura visual conformadas nas últimas décadas pelas tecnologias digitais tem alterado percepções e considera os riscos que essa condição traz para a garantia da liberdade de expressão e produção artística.
New Zealand Environmental Data Stack (NZEnvDS): A standardised collection of spatial layers for environmental modelling and site characterisation
Authors: McCarthy James , Leathwick John , Roudier Pierre , Barringer James , Etherington Thomas , Morgan Fraser , Odgers Nathan , Price Robbie , Wiser Susan , Richardson Sarah
Published: January 2022

Environmental variation is a crucial driver of ecological pattern, and spatial layers representing this variation are key to understanding and predicting important ecosystem distributions and processes. A national, standardised collection of different environmental gradients has the potential to support a variety of large-scale research questions, but to date these data sets have been limited and difficult to obtain. Here we describe the New Zealand Environmental Data Stack (NZEnvDS), a comprehensive set of 72 environmental layers quantifying spatial patterns of climate, soil, topography and terrain, as well as geographical distance at 100 m resolution, covering New Zealand’s three main islands and surrounding inshore islands. NZEnvDS includes layers from the Land Environments of New Zealand (LENZ), additional layers generated for LENZ but never publicly released, and several additional layers generated more recently. We also include an analysis of correlation between variables. All final NZEnvDS layers, their original source layers, and the R-code used to generate them are available publicly for download at https://doi.org/10.7931/m6rm-vz40.
An Efficient Estimation Technique for investigating Economic Growth and its Determinants for Nigeria in the Presence of Multicollinearity
Authors: Ebiwonjumi Ayooluwade , Chifurira Retius , Chihamu Knowledge
Published: January 2022

This study aimed to investigate economic growth (RGDP) and its determinants such as internal debt (INDT), external debt (EXDT), interest rate (RINR), exchange rate (REXR) and trade openness (OPEN). Quarterly data from 1986-2021 used for this investigation were extracted from Central Bank of Nigeria.  Exploratory data analysis (EDA) revealed linear dependence of RGDP and the aforementioned determinants. The EDA and the variance inflation factor revealed the presence of multicollinearity caused by the INDT. As a result of this, the ridge regression method was used and it was found that the multicollinearity problem was addressed with appropriate ridge constant K= 0.29. Hence, ridge regression technique with constant K= 0.29 was a robust method to predict economic growth in Nigeria using the explanatory variables under consideration. Thus, served as a great benefit to the policy makers as the study provided a better understanding of the economic growth and the aforementioned determinants in terms of relationship and in particular the set back caused by EXDT on the economy of Nigeria. Also, the researchers benefited from this study as it engendered the understanding of the appropriate estimation technique to be used when the presence of multicollinearity was established in fitting a linear model.
How TMT Knowledge Background Affects Corporate Social Responsibility and Firm Financial Performance?
Authors: Liu Tong , Li Yue’e
Published: January 2022

The purpose of this study is to investigate the coupling relationship between corporate social responsibility (CSR) and firm financial performance, and consider top management team (TMT) knowledge background as moderators. Most of the existing studies focus on the one-way impact between CSR and firm financial performance. A few studies mention the coupling relationship between them. TMT knowledge background reflects leadership in organization which significantly impacts strategy of the company. With this concern, this study explores the relationships among these three factors and identified the relationships by an empirical study, using panel data of Chinese A-share listed companies from 2014 to 2019. 3SLS regression results show that CSR and firm financial performance do have coupling relationship. And firm financial performance has lag effect on CSR. Function background stands out of knowledge background to be a moderator between CSR and firm financial performance. Education background could also affect firm financial performance. With this view, sustainable development is becoming a trend, making profits and taking social responsibilities are both important. TMT structure should be improved to recruit experienced TMT members to help set strategy for the company. It conforms to the reform of specification of labor in China. Upgrading TMT education degree also makes sense for growth. Suggestions for promoting leadership in organization are given.
Research on the Association of Consumption Structure With Industrial Structure and Economic Growth in Jinan City
Authors: Chen Li
Published: January 2022

This paper empirically investigates the relationship between consumption structure, industrial structure and economic growth in Jinan City using vector autoregressive (VAR) model using 30 years of data from 1990-2020 in Jinan City. The results show that there is a two-way causal relationship between industrial structure and economic growth, and a two-way causal relationship between consumption structure and economic growth in Jinan City. Consumption structure can promote the optimization of industrial structure and further promote economic growth, while industrial structure does not play a proper role in promoting the regulation of consumption structure.
Catcalling sebagai Bentuk Pelecehan Seksual Traumatis
Authors: Zahro Qila Saffana , Nur Rahmadina Rizki , Azizah Fadhlin
Published: January 2022

Catcalling events are now quite familiar, especially in big cities like Yogyakarta, where the population is full of students and college students. Catcalling involves a different experience for everyone. The purpose of this study was to know in depth the experiences and reactions of a person when experiencing catcalling. This research is qualitative research using the phenomenological method. The results of this study indicate that catcalling is a form of verbal sexual harassment and has a negative impact on the victim's life. The informant who became a victim of catcalling chose to remain silent even though it had a deep impact, even to a traumatic experience. Therefore, victims need to voice their interests to get wide attention.
Pengaruh Konten Instagram Terhadap Minat Beli Konsumen Space Coffee Roastery Yogyakarta
Authors: Rachman Jonni Ronaldho , Hariyanti Puji
Published: January 2022

This study is to determine the effect of content on Instagram on consumer buying interest in Space Coffee Roastery Yogyakarta. Instagram content is various kinds of things that are shared by users via Instagram accounts. This type of research is survey research. The number of samples is 100 respondents. Data collection using a questionnaire with a Likert scale. Processing and data analysis using quantitative descriptive analysis and simple linear regression analysis, significance test of individual parameters (t test), simultaneous significance test (F test), analysis of the coefficient of determination (R ²). The results showed that the percentage based on the Instagram content variable was dominated by very attractive as many as 71 (71%). The percentage based on the purchase interest variable was dominated by very high as much as 76 (76%). The results of the t test get a result of 0.000 <0.05, it can be concluded that Instagram content has a significant effect on buying interest. This shows that the more often you attract Instagram content, the more consumer interest in buying Space Coffee Roastery Yogyakarta will increase.
Experimental Evaluation of Hydraulic Resistance of Pipelines from Modern Polymer Materials
Authors: Paliivets Maksim
Published: January 2022

The aim of the studies was to test the hydraulic pressure losses along the length, local pressure losses, absolute and relative roughness values of the pipeline walls made of modern polymer material. The article presents the results of the experimental studies of hydraulic resistance of pipelines from modern polymer materials, the method of theoretical determination of resistance coefficients in the VALTEC ISO 21003 metal polymer pipeline, the classification and method of determining the values of local hydraulic resistance coefficients of T-Junctions are given, the dependence for determining the Darcy λ hydraulic friction coefficient associated with the value of the equivalent hydraulic roughness coefficient of the inner surface of pipes and the Reynolds number. The experimental data of the hydraulic coefficient of friction Darcy λ was compared with the known theoretical relationships of A.D. Altschul, Colbrooke for smooth pipes, Colbrooke and White, an alternative to the Colbrooke-White, Offengenden equation for low-shear pipes and pipes from polymer materials with Reynolds numbers Re>10^4. Dependence of hydraulic coefficient of friction on relative equivalent roughness of pipeline walls and Reynolds number, specific energy loss per one linear meter on total flow rate in system of hydraulically short pipeline is obtained. The empirical dependence of values of coefficients of local resistance ζ=f(Q2/Q3) from a ratio of the divided expenses of Q2/Q3 of the equal-pass T-Junction α=90 the pipeline to a branch up, on pass in the direct T-Junction and division of streams at various internal pipeline diameters of VALTEC.
A Revised Reversed Carnot Cycle Heat Pump with Close Energy Flow Cycle & without Temperature Gap: Do We Really Need to Extract Heat from Ambient for Heating
Authors: Yuan Yijun
Published: January 2022

A revised reversed Carnot cycle without external heat source and temperature gap is proposed to challenge the classic reversed Carnot cycle, heat pumps based on the proposed cycle with super energy efficiency works just like electric heater fitted for any climate including extreme cold weather, the application of these new heat pumps is discussed with conclusion that little real obstacles exist for scale application to address the heating related climate change, also a demonstration case shows a remarkable results to encourage the applications of these new heat pumps.
Preparation of NbAs Single Crystal by the Seed Growth Process
Authors: Sun Yinchang , Zhao Bojin , Huo Zongju , Liu Hongjun , Hu Zhanggui , Qiu Hailong
Published: January 2022

A Weyl semimetal is a novel crystal with low-energy electronic excitations that behave as Weyl fermions. It has received worldwide interest and was believed to have opened the next era of condensed matter physics after graphene and three-dimensional topological insulators. Howev-er, it is not easy to obtain a single large-size crystal because there are many nucleations in the preparation process. Here, a bottom-seed CVT growth method is proposed in this paper, and we acquired the large-size, high-quality NbAs single crystals up to 5x4x4 mm3 finally. X-ray diffrac-tion and STEM confirmed that they are tetragonal NbAs, which the key is to use seed crystal in vertical growth furnace. Notably, the photoelectric properties of the crystal are obtained under the existing conditions, which paves the way for the follow-up work.
Evaluation of the Efficacy of Different Pterygium Surgeries in Polish Caucasian Population. A Retrospective Case Series
Authors: Palewski Marcin , Budnik Agnieszka , Lisowski Łukasz , Konopińska Joanna
Published: January 2022

This study compares the efficacy of the two most commonly used surgical methods for pterygium in the Polish population, conjunctival autograft versus amniotic membrane transplantation, and to evaluate the postopera-tive recurrence rate. We retrospectively analysed the medical records of 65 patients who underwent surgery for primary or recurrent pterygium at an ophthalmology clinic in Bialystok, Poland between 2016 and 2020. Surgical success (no regrowth) occurred in almost half of the amniotic membrane patients (44%) and in most of the conjunctival autograft patients (79%); this was a significant relationship. The odds of successful surgery were 79% lower for subjects with amniotic membranes than for those with conjunc-tival autografts (OR with 95% CI = 0.21 (0.05; 0.94]; p = 0.045). Our study confirms that in Polish Caucasian population the success rate of the pro-cedure using conjunctival autograft versus the use of amniotic membrane, is in favoured for the procedure with conjunctival graft.
Effect Of The Aerosol Vertical Distribution On The Modelling Of Solar Radiation
Authors: Fountoulakis Ilias , Papachristopoulou Kyriakoula , Proestakis Emmanouil , Amiridis Vassilis , Kontoes Charalampos , Kazadzis Stelios
Published: January 2022

Default aerosol extinction coefficient profiles are commonly used instead of measured profiles in radiative transfer modelling, increasing the uncertainties in the simulations. The present study aims to determine the magnitude of these uncertainties and contribute towards the understanding of the complex interactions between aerosols and solar radiation. Default, artificial and measured profiles of the aerosol extinction coefficient are used to simulate the profiles of different radiometric quantities in the atmosphere for different surface, atmospheric, and aerosol properties and for four spectral bands: ultraviolet-B, ultraviolet-A, visible, and near infrared. Case studies are performed over different areas in Europe and North Africa. Analysis of the results shows that under cloudless-skies, changing the altitude of an artificial aerosol layer has minor impact on the levels of shortwave radiation at the top and the bottom of the atmosphere, even for high aerosol loads. Differences up to 30% were however detected for individual spectral bands. Using measured instead of default profiles for the simulations leads to more significant differences in the atmosphere, which become very large during dust episodes (10 – 60% for actinic flux at altitudes between 1 and 2 km, and up to 15 K/day for heating rates depending on site and solar elevation).
ESTIMASI PARAMETER MODEL GRAVITY DENGAN METODE INFERENSI-BAYES DAN FUNGSI HAMBATAN EKSPONENSIAL NEGATIF (STUDI KASUS KABUPATEN SUKOHARJO)
Authors: Berliansa Sesilia Bintang
Published: January 2022

Tingginya intensitas kegiatan di suatu daerah akan menyebabkan terjadinya permasalahan transportasi. Oleh karena itu, perlu dilakukan perencanaan transportasi berupa matriks asal tujuan yang diperoleh dengan menggunakan Model Gravity dan parameter β sebagai fungsi hambatan. Adapun tujuan dari penelitian ini yaitu untuk mengetahui nilai parameter β, total pergerakan, dan tingkat validitas pemodelan. Estimasi MAT ini menggunakan Model Gravity serta batasan bangkitan dan tarikan yang dibantu oleh program EMME/3. Pengestimasian MAT ini membutuhkan parameter β yang diperoleh dengan Metode Kalibrasi Newton-Raphson melalui program Microsoft Excel. Pembebanan MAT ke jaringan jalan yang diperoleh melalui metode User Equilibrium akan menghasilkan arus lalu lintas. Pada penelitian ini, diperoleh nilai parameter β dari hasil perhitungan menggunakan program Microsoft Excel sebesar 0,0800. Estimasi MAT menghasilkan total estimasi pergerakan Kabupaten Sukoharjo tahun 2021 adalah 16.361 smp/jam dan memiliki nilai validitas ( ) sebesar 0,8150.
Estimasi Parameter Model Gravity Dengan Metode Inferensi-Bayes dan Fungsi Hambatan Pangkat (Studi Kasus Kabupaten Sukoharjo)
Authors: Astridayanti Nabila
Published: January 2022

Pertumbuhan populasi penduduk yang terus bertambah akan meningkatkan kebutuhan pergerakan masyarakat dan dapat menyebabkan kemacetan lalu lintas sehingga, perlu adanya perencanaan transportasi yang baik dalam suatu daerah, yaitu dengan menggunakan Matriks Asal-Tujuan (MAT) untuk memperkirakan distribusi pergerakan antar lokasi. Salah satu cara dalam memperoleh MAT adalah dengan model Gravity yang mengandung parameter β yang harus diketahui. Oleh sebab itu, tujuan penelitian ini adalah untuk mengestimasi nilai parameter tersebut, mengetahui besar distribusi pergerakan yang diwakili dengan MAT dan mengetahui tingkat validitas arus lalu lintas hasil pemodelan yang dibandingkan dengan hasil pengamatan. Penelitian yang dilakukan di Kabupaten Sukoharjo ini membagi daerah kajian menjadi 36 zona berdasarkan batas administrasi kecamatan. Estimasi MAT diperoleh menggunakan model Gravity batasan bangkitan-tarikan yang diolah dengan perangkat lunak EMME/3. Nilai β dikalibrasi dengan metode Inferensi-Bayes dan fungsi hambatan pangkat yang dibantu dengan perangkat lunak Matlab. Arus lalu lintas diperoleh dengan membebankan MAT baru ke jaringan jalan yang kemudian dilakukan uji validitas menggunakan koefisien determinasi (R2). Penelitian menghasilkan nilai parameter β sebesar 0,0771 dengan total distribusi pergerakan sebesar 16374 smp/jam. Uji validitas menunjukkan nilai R2 sebesar 0,8374 atau tergolong dalam tingkat validitas sangat tinggi.
Pemodelan Simpang Exit Toll Kebakkramat dengan Sistem Fixed Time Controller dan Semi Actuated Controller Menggunakan Program Simulasi PTV VISSIM
Authors: DEWI IRSA LAKSITA
Published: January 2022

Untuk menjamin kebermanfaatan jalan tol, maka dibutuhkan perencanaan yang matang dari segala aspek, salah satunya kinerja persimpangan yang mengarah ke tol atau biasa disebut dengan simpang exit toll. Oleh karena itu, setiap persimpangan exit toll haruslah memiliki kinerja yang maksimal, sehingga tidak menimbulkan permasalahan lalu lintas bagi keberjalanan transportasi disekitarnya. Pada penelitian ini dilakukan pengkajian simpang exit toll Kebakkramat menggunakan PTV VISSIM. Pengkajian ini dilakukan untuk mengetahui bagaimana kinerja dari simpang exit toll Kebakkramat. Variabel yang diperhitungkan dalam proses kalibrasi yaitu volume arus lalu lintas yang dihitung dari survey traffic counting dan diuji dengan metode Geoffrey E. Havers.Selain itu juga dilakukan validasi pada waktu perjalanan LV, panjang antrian di lapangan yang diuji dengan metode uji t.Hasil penelitian menunjukkan sistem Semi Actuated Controller dengan jenis pengatiran fase normal tidak berpengaruh signifikan terhadap penigkatan kinerja Simpang Exit Toll Kebakkramat karena terdapat kendaraan yang melaju dari jalan minor
Kajian Uji Kuat Lekat pada Beton dengan Kadar Fly Ash 15%, 30%, dan 40% dari Berat Binder
Authors: Fakhri Falih
Published: January 2022

Abstrak

Produksi semen yang sangat tinggi terjadi mengikuti permintaan semen yang semakin tinggi. Dengan terjadinya hal tersebut menimbulkan efek samping, yaitu membawa dampak buruk terhadap kondisi lingkungan global. Untuk mengurangi efek tersebut sudah banyak penelitian yang diadakan mengenai material pengganti semen seperti fly ash yang ditambahkan pada campuran beton. Tetapi masih sedikit penelitian yang mengkaji tentang besarnya kuat lekat pada beton dengan material pengganti semen fly ash. Metode penelitian yang digunakan dalam penelitian ini yaitu dengan menggunakan 3 variasi kadar fly ash pada beton fly ash atau Fly Ash Concrete (FAC) yaitu dengan kadar 15%, 30%, dan 40%, lalu dibandingkan dengan beton normal. Benda uji berbentuk silinder dengan diameter 15 cm dan tinggi 30 cm. Pengujian dilakukan dengan menggunakan alat Universal Testing Machine (UTM).  Dari hasil penelitian yang sudah dilakukan, didapatkan nilai kuat lekat beton dengan kadar fly ash 15% sebesar 0,812 Mpa, beton dengan kadar fly ash 30% sebesar 0,985 Mpa, beton dengan kadar fly ash 40% sebesar 0,992 Mpa, sedangkan beton normal sebesar 0,234 Mpa, Hal ini menunjukkan kuat lekat beton meningkat seiring dengan bertambahnya kadar fly ash.
Kata kunci : fly ash, Fly Ash Concrete (FAC), kuat lekat
Kajian Kuat Lekat Pada Beton Self Compacting Concrete, Fly Ash Concrete Dengan Kadar Fly Ash 15%, High Volume Fly Ash Concrete Dengan Kadar Fly Ash 50% Dan High Volume Fly Ash-Self Compacting Concrete Dengan Kadar Fly Ash 50% Dari Berat Binder
Authors: Romadhon Rizki Nur
Published: January 2022

Perkembangan infrastruktur yang pesat memunculkan sebuah inovasi beton baru yaitu Self Compacting Concrete yang dapat memadat dan menggalir secara mandiri tanpa vibrator. Fly ash adalah maetrial yang dipakai sebagai pengganti semen karena kandungan silika yang tinggi. Penggunaan fly ash dalam beton dapat meningkatkan workability beton segar. Dalam penggunaannya fly ash dapat digunakan dalam volume kcil atau volume tinggi (≥50%). Penggunaan beton fly ash juga dapat dikombinasikan dengan SCC untuk mendapatkan keuntungan dari keduanya. Penelitian ini mengkaji mengenai kuat lekat dari SCC, FAC dengan kadar fly ash 15 %, HVFAC dengan kadar fly ash 50%, dan HVFA-SCC dengan kadar fly ash 50% yang masing-masing berumur 28 hari, kemudian dibandingkan dengan beton normal. Benda uji berbentuk silinder berukuran tinggi 30 cm dan diameter 15 cm masing-masing sebanyak 3 buah. Berdasarkan hasil penelitian yang dilakukan diperoleh hasil bahwa penggunaan fly ash dapat meningkatkan kuat lekat beton dibandingkan dengan beton normal. Kuat lekat pada HVFAC 50% sebesar 2,28 MPa, FAC 15% sebesar 2,05 MPa, HVFA-SCC 50% sebesar 1,45 MPa dan SCC sebesar 1,35 MPa, sedangkan beton normal sebesar 1,05 MPa.
KAJIAN KUAT TARIK LANGSUNG DAN KUAT TARIK BELAH BETON DENGAN FLY ASH KADAR 15%, 30%, DAN 40% SEBAGAI PENGGANTI SEMEN TERHADAP BETON NORMAL
Authors: Cahyo Aji Aninggito Wiku
Published: January 2022

Pada era sekarang seiring dengan peningkatan jumlah penduduk Indonsesia yang tinggi diperlukan juga sarana penunjang untuk kehidupan berupa infrastruktur yang nyaman dan aman untuk guna mencukupi kebutuhan hidup. Dalam usaha memenuhi kebutuhan sehari hari salah satu upaya yaitu dengan dilaksanakan pembangunan infrastruktur dengan kualitas yang tinggi namun diusahakan dengan pelaksanaan pekerjaan konstruksi yang cepat dengan hasil yang bagus dan biaya yang efisien. Beton menjadi salah satu komponen penting dalam pembangunan suatu infrastruktur. Industri pembuatan beton yang masih menggunakan semen portland sebagai pilihan bahan baku utamanya dapat memicu kerusakan terhadap lingkungan. Kerusakan terhadap lingkungan dapat terjadi disebabkan emisi karbon dioksida yang berasal dari pembakaran batu bara dalam pembuatan semen portland. Salah satu alternatif solusi untuk menggantikan semen portland yaitu menggunakan residu pembakaran batu bara yaitu fly ash guna meningkatkan kualitas beton dan mengurangi dampak buruk terhadap lingkungan. Pada Penelitian ini dilakukan analisis kuat tarik langsung dan kuat tarik belah pada beton menggunakan kadar fly ash 15%, 30%, dan 40% sebagai bahan pengganti dari semen dengan dimensi benda uji pengujian kuat tarik langung 10 x 10 x 25 cm berbentuk balok dengan ditengah bentang terdapat cuilan dengan bentuk segitiga dengan dimensi tinggi 1,5 cm dan alas 2 cm berfungsi sebagai area yang diharapkan gagal dan benda uji pengujian kuat tarik belah berupa silinder 15 cm dan tinggi 30 cm. Pengujian kuat tarik langsung menggunakan metode load controlled test dengan menggunakan alat UTM (Universal Testing Machine), sedangkan pengujian kuat tarik belah menggunakan alat CTM (Compression Testing Machine), pengujian dilaksanakan pasca beton mengeras pada umur 28 hari. Nilai pengujian rata-rata kuat tarik belah lebih besar dibandingkan nilai pengujian rata-rata kuat tarik langsung, nilai kuat tarik langsung pada variasi fly ash kadar 15 % sebesar 79,47 % dari kuat tarik belah, nilai kuat tarik langsung pada variasi fly ash kadar 30 % sebesar 123,37 % dari kuat tarik belah, nilai kuat tarik langsung pada variasi fly ash kadar 40 % sebesar 123,29 % dari kuat tarik belah, nilai kuat tarik langsung pada variasi beton normal sebesar 82 % dari kuat tarik belah.
Kajian Kuat Tekan, Kuat Tarik Belah, dan Modulus Elastisitas pada High Volume Fly Ash (HVFA) dengan Kadar Fly Ash 50%, 60%, dan 70% terhadap Beton Normal
Authors: Widodo Mochamad Ari
Published: January 2022

Dalam era ini, penggunaan beton sering digunakan pada bidang kontruksi bangunan. Dengan banyaknya pembangunan memberikan dampak pada lingkungan karena emisi udara CO2 dari industri semen. Alternatif dalam mengatasi masalah ini dengan memanfaatkan material fly ash yang dikombinasikan dengan semen. Fly ash yang tinggi atau lebih dari 50% pada campuran beton dikenal dengan sebutan High Volume Fly Ash (HVFA). Tujuan penelitian ini adalah untuk menganalisa pengaruh dari kadar fly ash 50%, 60%, dan 70% terhadap nilai kuat tekan, kuat tarik belah, dan modulus elastisitas dibandingkan dengan beton normal. Benda uji uang digunakan dalam penelitian ini berbentuk silinder dengan ukuran 30x15 cm. Pengujian pada beton dilakukan dengan menggunakan alat Compression Testing Machine (CTM) pada umur beton 28 hari. Berdasarkan hasil penelitian untuk beton HVFA dengan kadar 50%, 60%, dan 70% memiliki nilai kuat tekan sebesar 30,37 MPa, 28,11 MPa, dan 19,81 Mpa. Untuk nilai kuat tarik belah masing-masing memiliki nilai sebesar 3,72 MPa, 2,70 MPa, dan 2,33 MPa. Sedangkan untuk nilai modulus elastisitas menggunakan standar perhitungan ASTM C-469 sebagai perhitungan, masing-masing memiliki nilai sebesar 28683,00 MPa, 14081,67 MPa, dan 21848,67 MPa.
Quantifying Joint Coordination Variability in Anterior Cruciate Ligament-Reconstructed Individuals During Walking
Authors:   ,   University of Tennessee Health Science Center, Davis Kylie
Published: January 2022

The knee is the second most common joint to sustain injury. An estimated 200,000 anterior cruciate ligament (ACL) ruptures occur each year in the United States alone, and about 100,000 ACL reconstruction (ACLR) surgeries are performed annually. There is a significant risk of developing osteoarthritis of the knee after incurring an ACL injury, and the incidence of ipsilateral or contralateral injury is six times greater in individuals who have a surgically repaired ACL. Past studies have analyzed kinetic and kinematic characteristics of individual lower extremity joints to reveal differences between subjects with and without ACLR. Despite reports of altered kinematic performance in individuals with ACLR compared to healthy controls, most of the analyses did not evaluate coordinative function, and thus neglected to consider how the lower limb acts as a linked chain. Therefore, the present study used a method based on dynamical systems theory to quantify coordination and account for the interaction between joints in the lower extremity. The purpose of the study was to quantify and compare joint coordination variability and joint coordination patterns between individuals with ACLR and matched controls. Institutional Review Board (IRB) approval was obtained prior to data collection, and all subjects signed an informed consent form. Twenty subjects (nine females, eleven males; body mass index (BMI) 25±3.5 kg/m2) who had undergone unilateral ACLR (thirteen right, seven left) and been cleared to return to full activity were compared to twenty control subjects matched by gender and BMI (nine females, eleven males; BMI 22.4±2.4 km/m2). Kinematic and kinetic data during walking were collected in the UTHSC Motion Analysis Laboratory. A vector coding technique was used to calculate coupling angles for six joint couplings involving the hip, knee, and ankle across four periods within the stance phase. Joint coordination variability was defined as the standard deviation of the coupling angle between trials within a subject, and joint coordination patterns were based on coupling angle magnitude. Individuals with ACLR exhibited increased joint coordination variability and altered joint coordination patterns compared to the matched controls during the stance phase of walking. These results suggested that coordinative function may not be fully restored in individuals with ACLR following rehabilitation. Increased coordination variability from a normal, or optimal amount as well as altered coordination patterns may result from a deficit in sensorimotor control, and represent risk of re-injury. Further investigation that is prospective, focuses primarily on hip-knee coupled motion in frontal and transverse planes, and includes assessment of EMG in addition to kinematics may contribute relevant information for improving ACL injury prevention and rehabilitation.
Using S. pombe to Study the Biological Roles of the Histone Deacetylases Sir2 and Clr3 and the DEAD-Box RNA Helicase Ded1
Authors:   ,   University of Tennessee Health Science Center, Lowe Brandon
Published: January 2022

The fission yeast Schizosaccharomyces pombe provides a good model system to quickly study basic mechanisms underlying biological pathways conserved in higher eukaryotes. Here we utilized fission yeast to study the roles of the histone deacetylases (HDACs) Sir2 and Clr3 in heterochromatin formation and cancer associated mutations of the DEAD-box RNA helicase DDX3X, homolog of fission yeast Ded1, in translational control. Heterochromatin in fission yeast is characterized by hypoacetylation as well as methylation of histone H3 on lysine 9 (H3K9me). Heterochromatin assembly can now be separated into three distinct steps: heterochromatin establishment, spreading, and maintenance. These steps involve the actions of the histone H3K9 methyltransferase Clr4 along with the RNAi pathway. HDACs are also required for heterochromatin assembly, with the H3K9 HDAC Sir2 and H3K14 HDAC Clr3 participating in the processes of heterochromatin establishment and maintenance. Here, we show that both a serine rich patch within the N-terminal domain of Sir2 and the HDAC activity of Sir2 are required for proper recruitment of Sir2 to chromatin and for heterochromatin establishment. We also report that Sir2 shares similarity in global transcriptional control with Mit1 and Chp2, components of the Snf2/HDAC-containing repressor complex (SHREC), suggesting a connection between Sir2 and SHREC in transcriptional regulation. We also identified additional sites that are deacetylated by the SHREC HDAC Clr3 in addition to H3K14, specifically H2B K5, 6, 10, and 15. Using fission yeast, this study also examined the biological consequence of medulloblastoma associated mutations of the DEAD-box ATP-dependent RNA helicase DDX3X. In fission yeast, Ded1 is an essential protein with connections to both the RNAi pathway and translation of transcripts with complex UTRs. Here we show that human DDX3X can functionally complement for growth defects observed in thermosensitive ded1 mutants while specific cancer-associated DDX3X mutants (A222P, G302V, G325E, and P568L) cannot complement this growth defect. Fission yeast bearing these specific DDX3X mutants exhibit defects in the expression of specific proteins, suggesting the mutant proteins impair translational control.