bluuebunny/crossref_metadata_2025 huggingface dataset:
High-density DArT-based SilicoDArT and SNP markers for genetic diversity and population structure studies in cassava (Manihot esculenta Crantz)
Authors: Adu Bright Gyamfi , Akromah Richard , Amoah Stephen , Nyadanu Daniel , Yeboah Alex , Aboagye Lawrence Missah , Amoah Richard Adu , Owusu Eva Gyamfuaa
Published: July 2021

Cassava (Manihot esculentaCrantz) is an important industrial and staple crop due to its high starch content, low input requirement, and resilience which makes it an ideal crop for sustainable agricultural systems and marginal lands in the tropics. However, the lack of genomic information on local genetic resources has impeded efficient conservation and improvement of the crop and the exploration of its full agronomic and breeding potential. This work was carried out to obtain information on population structure and extent of genetic variability among some local landraces conserved at the Plant Genetic Resources Research Institute, Ghana and exotic cassava accessions with Diversity Array Technology based SilicoDArT and SNP markers to infer how the relatedness in the genetic materials can be used to enhance germplasm curation and future breeding efforts. A total of 10521 SilicoDArT and 10808 SNP markers were used with varying polymorphic information content (PIC) values. The average PIC was 0.36 and 0.28 for the SilicoDArT and SNPs respectively. Population structure and average linkage hierarchical clustering based on SNPs revealed two distinct subpopulations and a large number of admixtures. Both DArT platforms identified 22 landraces as potential duplicates based on Gower’s genetic dissimilarity. The expected heterozygosity which defines the genetic variation within each subpopulation was 0.008 for subpop1 which were mainly landraces and 0.391 for subpop2 indicating the homogeneous and admixture nature of the two subpopulations. Further analysis upon removal of the duplicates increased the expected heterozygosity of subpop1 from 0.008 to 0.357. A mantel test indicated strong interdependence (r = 0.970; P < 0.001) between SilicoDArT and DArTSeq SNP genotypic data suggesting both marker platforms as a robust system for genomic studies in cassava. These findings provide important information for efficientex-situconservation of cassava, future heterosis breeding, and marker-assisted selection (MAS) to enhance cassava improvement.
„Egy Érzés Archívuma”: A Modern Leszbikus Narratíva Felemelkedése
Authors: Szigethy Nóra
Published: July 2021

A tanulmányfő állítása, hogy a modern leszbikus narratívák a huszadik század elejétől kezdődően ellennarratívaként jelentek meg, válaszként a tizenkilencedik századi szexológia állításaira, amely a leszbikust természetellenesnek és erkölcstelennek definiálta. Az elemzés három leszbikus regényt elemez, A magány kútját Radclyffe Halltól, a Tavaszi Tűzet Vin Packertől, és A Só Árát Patricia Highsmithtől. Ezek a szövegek a Richard von Krafft-Ebing és Havelock Ellis által kialakított terminológia újra értelmezései, szubverzív intertextuális láncolatot hoztak létre a leszbikus láthatóság érdekében. Az elemzés a narratívákban visszatérő témákra fókuszál, melyek a leszbikus vágyat egy másik nőhöz való vonzódásként és a heteroszexualitás elvárásaitól szükséges eltávolodásként gondolják el. Tamsin Wilton, Adrienne Rich és Julia Abraham gondolatait követve, a leszbikusság társadalmi pozicionáltságként értelmeződik, amely megkérdőjelezi a korabeli, Krafft-Ebing és Ellis által képviselt heteronormatív kánon fennhatóságát.
The data reduction for different Speckle images using MATLAB and IMAGE pro-plus
Authors: Karamanii M. , Elghandoor H- , Ramadan H.
Published: July 2021

When coherent light rays can be incident on an optically rough object it will scatter randomly through all directions. Interference of these scattered rays leads to the formation of a bright spots (constructive interference), and dark spots (destructive interference), these are called Laser Speckles.
Pengembangan Instrumen Kecerdasan Emosional Anak Usia Dini
Authors: Conita Ananto Mafaza , Vinayastri Amelia
Published: July 2021

Emotional intelligence is important to be instilled in children from an early age. The lack of compatibility of early childhood emotional intelligence instruments in achieving child development in the globalization era is a research problem. This study aims to develop an instrument of emotional intelligence for children aged 5-6 years. The method used to research and development modification of the Borg & Gall development model. The research populations were the teachers and parents of group B students. Sampling used incidental sampling technique. Research respondents amounted to 212 respondents. Content validity was carried out by experts, resulting in 6 dimensions of self-understanding, 5 dimensions of self-control, 5 dimensions of understanding others, and 6 dimensions of building relationships. The results of the study obtained the calculation of the validity of the field trial the percentage of teachers was 98% and the percentage of parents was 89%. The average value of the percentage of teachers and parents is 94% with a very valid category. Calculation of reliability using Cronbach's Alpha of 0.966 with a high reliable category. The findings of this study contribute to the understanding of early childhood emotional intelligence instruments and recommend early childhood educators use emotional intelligence instruments as a guide for assessing aspects of early childhood emotional development.
Social Recognition in the Protecting of Land Ownership in Ngadisari Village
Authors: Fadri Zainal
Published: July 2021

This study aims to explore the role of the community in protecting land. Land in the Tengger community has been the spotlight since an increase in tourist visits to the Bromo area, which has raised many questions and curiosity about the land preservation model. In collecting data and analysis, the researcher used a qualitative descriptive approach. It was further carried out in-depth interviews with several key informants to answer the research question. The research results show that the productive soil conditions make the Tengger community closely prevent the land from living sustainably. Land conditions supported by the community in understanding traditional values as a legacy from their ancestors discouraged people from selling because this is a prohibition unviolated. The Ngadisari’s Village Government has made an effort to protect the land in response to the challenges of buying and selling land by issuing customary regulations with recognition. The traditional rules regarding the prohibition of the land of sale become legal rules and have legal force.
Housewives and Virtual Market Shop during the Coronavirus Pandemic: Insight from Women's Empowerment Process
Authors: Muslim Aziz
Published: July 2021

Covid-19 pandemic, the coronavirus disease, has negatively impacted the economy, especially for underprivileged individuals and informal sector workers that lost their jobs due to strict government policies. Consequently, they have encountered difficulties in making ends meet for their families. This research aims to describe the efforts made by housewives and their impact on supporting life needs during the Covid-19 pandemic. To respond to this question, the analysis uses a qualitative method with a case study approach. So that, this study shows that the several efforts do homemakers for building virtual markets, optimizing skills, and creating businesses for cooperating parties. It is for the income problem of insufficient capital and avoids a loss. Moreover, those efforts have an impact on creating self-employment opportunities and on the sustainability of family income.
Astrometry and photometry of digitized plates of Baldone Schmidt telescope
Authors: Eglitis Ilgmars , Andruk Vitaly
Published: July 2021

During the 40-year photographic period of astronomical observations, the Baldone Astrophysical Observatory has accumulated more than 22,000 direct and 2,500 spectral images. In 2018, the digitization of direct astrophoto images with a resolution of 1200 dpi was completed. A processing methodology for obtaining the equatorial coordinates and photometric characteristics of the objects recorded in digitized astronegatives using the LINUX/MIDAS/ROMAFOT environment has been developed at the Main Astronomical Observatory of the National Academy of Sciences of Ukraine. Program package with success already works in seven observatories. A description of the operation of this program complex in stages and analysis of the obtained results is given. The steps describe the astrometric and photometric reduction process of digital records, as well as the reduction of the obtained instrumental magnitudes to the Johnson UBVR photometric system. The methodology of characteristic curve construction in the case of one exposure is described in detail. From all digitized astrophotoplates to date Approximately 2200 V film negatives, 300 U plates and several R, B plates were processed. As a result, catalogs of the positions and magnitudes of Pluto, 1848 asteroids and comets were obtained. 31 new positions were recorded in the VizieR Pluto catalog VI/155. It was found that the root-mean-square errors of the reduction of the measured coordinates to the equatorial coordinate system of the Tycho-2 catalog have values σ
RA

,

DEC
= 0.1-0.2”, and the root-mean-square errors of the reduction of instrumental photometric quantities m to the Johnson system of stellar UBVR-values are also in within σ
UBVR
= 0.1 − 0.2
m
.
A polar dual to the momentum of toric Fano manifolds
Authors: Sano Yuji
Published: July 2021

We introduce an invariant on the Fano polytope of a toric Fano manifold as a polar dual counterpart to the momentum of its polar dual polytope. Moreover, we prove that if the momentum of the polar dual polytope is equal to zero, then the dual invariant on a Fano polytope vanishes.
Modeling of lime production process using artificial neural network
Authors: Daeichian Abolghasem , Shahramfar Rana , Heidari Elham
Published: July 2021

Lime is a significant material in many industrial processes, including steelmaking by blast furnace. Lime production through rotary kilns is a standard method in industries, yet it has depreciation, high energy consumption, and environmental pollution. A model of the lime production process can help to not only increase our knowledge and awareness but also can help reduce its disadvantages. This paper presents a black-box model by Artificial Neural Network (ANN) for the lime production process considering pre-heater, rotary kiln, and cooler parameters. To this end, actual data are collected from Zobahan Isfahan Steel Company, Iran, which consists of 746 data obtained in a duration of one year. The proposed model considers 23 input variables, predicting the amount of produced lime as an output variable. The ANN parameters such as number of hidden layers, number of neurons in each layer, activation functions, and training algorithm are optimized. Then, the sensitivity of the optimum model to the input variables is investigated. Top-three input variables are selected on the basis of one-group sensitivity analysis and their interactions are studied. Finally, an ANN model is developed considering the top-three most effective input variables. The mean square error of the proposed models with 23 and 3 inputs are equal to 0.000693 and 0.004061, respectively, which shows a high prediction capability of the two proposed models.
Revealing ethnographic mediations through reflexive writing: A collaborative exploration of tarot and astrology as a not-knowing approach
Authors: Wiesner Adam , Cornejo-Valle Mónica
Published: July 2021

In order to develop a collaborative experience of reflexive writing, this article explores the ethnographic process through two communication devices used by the authors in their respective fieldwork: tarot readings and evolutionary astrology. Reflecting on their distinct (if not opposing) backgrounds, the authors explore and interpret how their different backgrounds and conversational devices shape their ethnographic experience as a process of revealing the unknown, following the not-knowing approach (Anderson, 1997). The dialogic exchange also reveals how the not-knowing approach affects the collaborative aspect of the reflexive writing experience.
The closer we are, The harder it gets
Authors: Vrzgulová Monika
Published: July 2021

For the researcher, long-term qualitative investigation of a given subject matter represents an opportunity to acquire comprehensive knowledge of that subject matter in all of its dynamism and complexity. The author of this paper has been carrying out such research among Holocaust survivors, mainly employing the oral history method. This paper is an impressionistic story, a genre not commonly found in Slovak ethnological literature. It constitutes a first attempt to revisit material emerging from years of collaborative investigation with one particular female survivor. The paper alternates between reflections of selected situations and interpretations of events and processes which resulted from the research partner’s activities between 1995 and 2015.
Authoethnography in the study of football fan culture. Theoretical and methodological reflections by way of football rivarly research
Authors: Dmowski Seweryn , Załęski Piotr
Published: July 2021

The article reflects on the use of autoethnography in researching football fan culture. It identifies the benefits and challenges of using autoethnography as a strategy and a research method for understanding football fan culture. Despite numerous examples of the use of autoethnography in football research, including supporter studies, it has yet to be considered from a strictly theoretical perspective on the methodological dilemmas of the researcher–football fan. The article critically analyses the entire process of autoethnographic research, which led to the conceptualisation of a research project on perceptions of football competitions. This paper is the result of a clash between a junior scientist’s original research concept and a more experienced ethnographic researcher’s critical approach and reflects the discussion between them. The authors believe that the conclusions reached may be helpful for researchers in the field of humanities and social sciences considering using autoethnography in their research.
Association of overweight, obesity and insufficient sleep duration and related lifestyle factors among school children and adolescents
Authors: Almulla Aisha Abdalla , Zoubeidi Taoufik
Published: July 2021

Objectives

To assess the prevalence of overweight, obesity and Insufficient Sleep Duration (ISD) and to investigate their relationship with related lifestyle factors among school-aged students. Obesity in childhood and adolescence is a serious health concern as it may have long term risk for overweight and obesity in adulthood.

Methods

This is a cross-sectional study of 1,611 students aged between 10 and 18 years from Al Ain city, United Arab Emirates. Data were collected using a multistage stratified random sampling method using a validated questionnaire and the level of significance was set at p<0.05.

Results

The prevalence of overweight and obesity was 42.4%. ISD was 36.6% among students. Higher BMI was significantly related to being a male and inactive (95% CI=0.03–0.23), daily coffee consumption (95% CI=0.03–0.1), older age (95% CI=0.01–0.02), less average sleep duration (95% CI=−0.02 to −0.003) and spending more time on TV/videogames (95% CI=0.01–0.07). The likelihood of ISD was significantly lower among students who consumed breakfast daily (OR=0.58, 95% CI=0.41–0.83), spent less time on smart devices (OR=0.63, 95% CI=0.47–0.84), and never consumed energy drinks or soft drinks (OR=2.64, 95% CI=1.13–6.16, OR=2.02, 95% CI=1.24–3.29, respectively).

Conclusions

The prevalence of overweight and obesity among school-aged students is high. ISD and related lifestyle factors are significantly associated with overweight and obesity. Study findings emphasize the need to address and implement successful strategies for a healthy lifestyle starting from early childhood to combat the increasing rates of overweight and obesity in adulthood.
A rate-of-change-of-current based fault classification technique for thyristor-controlled series-compensated transmission lines
Authors: Kothari Nishant H. , Bhalja Bhavesh R. , Pandya Vivek , Tripathi Pushkar
Published: July 2021

This paper presents a new fault classification technique for Thyristor-Controlled Series-Compensated (TCSC) transmission lines using Support Vector Machine (SVM). The proposed technique is based on the utilization of post-fault magnitude of Rate-of-Change-of-Current (ROCC). Fault classification has been carried out by giving ROCC of three-phases and zero sequence current as inputs to SVM classifier. The performance of SVM as a binary-class, and multi-class classifier has been evaluated for the proposed feature. The validity of the suggested technique has been tested by modeling a TCSC based 400 kV, 300 km long transmission line using PSCAD/EMTDC software package. Based on the above model, a large number of diversified fault cases (41,220 cases) have been generated by varying fault and system parameters. The effect of window length, current transformer (CT) saturation, noise-signal, and sampling frequency have also been studied. It has been found that the proposed technique provides an accuracy of 99.98% for 37,620 test cases. Moreover, the performance of the suggested technique has also been found to be consistent upon evaluating in a 12-bus power system model consisting of a 365 kV, 60 Hz, 300 km long TCSC line. Comparative evaluation of the proposed SVM based technique with other recent techniques clearly indicates its superiority in terms of fault classification accuracy.
On the border of the amyloidogenic sequences: prefix analysis of the parallel beta sheets in the PDB_Amyloid collection
Authors: Takács Kristóf , Grolmusz Vince
Published: July 2021

The Protein Data Bank (PDB) today contains more than 174,000 entries with the 3-dimensional structures of biological macromolecules. Using the rich resources of this repository, it is possible identifying subsets with specific, interesting properties for different applications. Our research group prepared an automatically updated list of amyloid- and probably amyloidogenic molecules, the PDB_Amyloid collection, which is freely available at the address http://pitgroup.org/amyloid. This resource applies exclusively the geometric properties of the steric structures for identifying amyloids. In the present contribution, we analyze the starting (i.e., prefix) subsequences of the characteristic, parallel beta-sheets of the structures in the PDB_Amyloid collection, and identify further appearances of these length-5 prefix subsequences in the whole PDB data set. We have identified this way numerous proteins, whose normal or irregular functions involve amyloid formation, structural misfolding, or anti-coagulant properties, simply by containing these prefixes: including the T-cell receptor (TCR), bound with the major histocompatibility complexes MHC-1 and MHC-2; the p53 tumor suppressor protein; a mycobacterial RNA polymerase transcription initialization complex; the human bridging integrator protein BIN-1; and the tick anti-coagulant peptide TAP.
Baring the bones: the lexico-semantic association of bone with strength in Melanesia and the study of colexification
Authors: Schapper Antoinette
Published: July 2021

In this article I demonstrate that there is a pervasive lexico-semantic associationbones are strengthin the languages of Melanesia, but that its linguistic expression is highly varied; languages are scattered along a lexical-to-clausal cline in their expression of the association between bone and strength, with a large number of language-specific idioms based on the association to be observed in Melanesia. I argue that the striking areality of this lexico-semantic association is readily missed in top-down approaches to lexical semantic typology that rely, for instance, on databases of word lists, or on narrow search domains limited to the meanings of simplex lexemes.
Using hidden Markov models to find discrete targets in continuous sociophonetic data
Authors: Duncan Daniel
Published: July 2021

Advances in sociophonetic research resulted in features once sorted into discrete bins now being measured continuously. This has implied a shift in what sociolinguists view as the abstract representation of the sociolinguistic variable. When measured discretely, variation is variation in selection: one variant is selected for production, and factors influencing language variation and change are influencing the frequency at which variants are selected. Measured continuously, variation is variation in execution: speakers have a single target for production, which they approximate with varying success. This paper suggests that both approaches can and should be considered in sociophonetic analysis. To that end, I offer the use of hidden Markov models (HMMs) as a novel approach to find speakers’ multiple targets within continuous data. Using thelotvowel among whites in Greater St. Louis as a case study, I compare 2-state and 1-state HMMs constructed at the individual speaker level. Ten of fifty-two speakers’ production is shown to involve the regular use of distinct fronted and backed variants of the vowel. This finding illustrates HMMs’ capacity to allow us to consider variation as both variant selection and execution, making them a useful tool in the analysis of sociophonetic data.
Sounds like a dynamic system: a unifying approach to Language
Authors: Sowers-Wills Sara
Published: July 2021

While nativist linguistic theory readily captures the regular processes of adult language, it struggles to account for often-unwieldy data collected from children. Any theory of language must house both the predictable and unpredictable turns a linguistic system takes. Some usage-based theories make strides in accounting for connections between multiple linguistic factors contributing to linguistic representation. Dynamic systems theory (DST) is capable of describing the interaction between numerous factors both linguistic and extra-linguistic. Grounded in embodiment, DST accounts for continuity between bodily and cognitive processes, which together are crucial in understanding the development of language. Conceptualizing systems as self-organizing, DST allows for the emergence of novel forms alongside the predictable. Furthermore, DST explains both continuity between unexpected child forms and eventual target forms and also apparent discontinuity that gives the illusion of discrete developmental stages. To illustrate the advantages of DST in describing language processes, this paper presents data from one American English-acquiring child, which comes from a larger study investigating phonological development beginning at the onset of word production. The data demonstrate the role of phonological templates in development as part of a dynamic system, entailing the interaction between developing phonological categories, lexical representation, and linguistic environment.
Use of photoimmunoconjugates to characterize ABCB1 in cancer cells
Authors: Liang Barry J. , Lusvarghi Sabrina , Ambudkar Suresh V. , Huang Huang-Chiao
Published: July 2021

Accurate detection of ATP-binding cassette drug transporter ABCB1 expression is imperative for precise identification of drug-resistant tumors. Existing detection methods fail to provide the necessary molecular details regarding the functional state of the transporter. Photoimmunoconjugates are a unique class of antibody–dye conjugates for molecular diagnosis and therapeutic treatment. However, conjugating hydrophobic photosensitizers to hydrophilic antibodies is quite challenging. Here, we devise a photoimmunoconjugate that combines a clinically approved benzoporphyrin derivative (BPD) photosensitizer and the conformational-sensitive UIC2 monoclonal antibody to target functionally active human ABCB1 (i.e., ABCB1 in the inward-open conformation). We show that PEGylation of UIC2 enhances the BPD conjugation efficiency and reduces the amount of non-covalently conjugated BPD molecules by 17%. Size exclusion chromatography effectively separates the different molecular weight species found in the UIC2–BPD sample. The binding of UIC2–BPD to ABCB1 was demonstrated in lipidic nanodiscs and ABCB1-overexpressing triple negative breast cancer (TNBC) cells. UIC2–BPD was found to retain the conformation sensitivity of UIC2, as the addition of ABCB1 modulators increases the antibody reactivity in vitro. Thus, the inherent fluorescence capability of BPD can be used to label ABCB1-overexpressing TNBC cells using UIC2–BPD. Our findings provide insight into conjugation of hydrophobic photosensitizers to conformation-sensitive antibodies to target proteins expressed on the surface of cancer cells.
Nigeria: Is There an Environmental Kuznets Curve for Fluorinated Gases?
Authors: Okon Emmanuel O.
Published: July 2021

The environmental Kuznets curve is a relationship between various indicators of environmental degradation and income per capita. Empirical studies have produced mixed results concerning Environmental Kuznets Curve hypothesis given the different indicators of environmental degradation used. But there has not been any validation of Environmental Kuznets Curve for powerful greenhouse gases like fluorinated gases that have a global warming effect up to 23 000 times greater than carbon dioxide (CO2), and their emissions are rising strongly. This paper aimed to test the applicability of the Environmental Kuznets Curve in Nigeria from 1970-2018 by deploying the Auto Regressive Distributed Lag methodology, the bounds test shows that there’s a long-run equilibrium relationship between Gross Domestic Product per capita, square of Gross Domestic Product per capita, alternative and nuclear energy, combustible renewable and waste, and adjusted savings: net forest depletion. Nonetheless, the results do not support the Environmental Kuznets Curve hypothesis both in the short-run and long-run and inverted U-shaped relationship was not found between fluorinated greenhouse gas emissions and growth in Nigeria. However, adopting fluorinated gas recycling and destruction processes, optimizing production to minimize emissions, and replacing these gases with alternatives are suggested for industrial users.
Metallography and Biomimetics – Or New Surfaces Without Chemistry?
Authors: Fox T. , Lößlein S. M. , Müller D. W. , Mücklich F.
Published: July 2021

Fingerprints, a butterfly’s wings, or a lotus leaf: when it comes to surfaces, there is no such thing as coincidence in animated nature. Based on their surfaces, animals and plants control their wettability, their swimming resistance, their appearance, and much more. Evolution has optimized these surfaces and developed a microstructure that fits every need. It is all the more astonishing that, with regard to technical surfaces, man confines himself to random roughnesses or “smooth” surfaces. It is surely not a problem of a lack of incentives: structured surfaces have already provided evidence of optimizing friction and wear [1, 2, 3, 4], improving electrical contacts [5, 6], making implants biocompatible [7, 8], keeping away harmful bacteria [9], and much more. How come we continue counting on grinding, polishing, sandblasting, or etching? As so often, the problem can be found in economic cost effectiveness. It is possible to produce interesting structures such as those of the feather in Fig. 1. However, generating fine structures in the micro and nanometer range usually requires precise processing techniques. This is complex, time-consuming, and cannot readily be integrated into a manufacturing process. Things are different with Direct Laser Interference Patterning, DLIP) [10, 11]. This method makes use of the strong interference pattern of overlapped laser beams as a “stamp” to provide an entire surface area with dots, lines, or other patterns – in one shot. It thus saves time, allows for patterning speeds of up to 1 m2/min and does it without an elaborate pre- or post-treatment [10, 12]. The following article intends to outline how the method works, which structures can be generated, and how the complex multi-scale structures that nature developed over millions of years can be replicated in only one step.
Sassy Sasha?: The intersectionality of (im)politeness and sociolinguistics
Authors: Troutman Denise
Published: July 2021

This article focuses on intersections of race, gender, class, and (im)politeness within the African American speech community (AASC). Although general linguistic theorizing aims at universalizing (im)politeness, ultimately identifying common components within human (im)politeness systems worldwide, African American perspectives have not been interjected within that broader theorizing. Thus, I examine (im)politeness from the perspective of African Americans with a focus on females’ linguistic and nonlinguistic behaviors. A plethora of work examines, challenges, and refutes stereotypical gender. I explore facets of the stereotypical, particularly as applied to Black females with the aim of broadening understandings of (im)politeness based on cultural variation. Specifically, I examine sassy as a social construct when applied to Black women in U.S. contexts, especially two Black women’s online assessments of sassy performativity by Sasha Obama, as a vehicle for allowing Black women’s voices and experiences to enter into theory-making. The analysis is interpretative and idiographic. The two African American women bloggers’ words and meanings suggest that (im)politeness within the AASC resides in sociolinguistics, not pragmatics. As a result of the analysis, I suggest that (im)politeness theorizing could pay attention to the social embodiedness of human polite and impolite behaviors. This, in part, constitutes the sociolinguistics of (im)politeness.
The energy absorption behavior of novel composite sandwich structures reinforced with trapezoidal latticed webs
Authors: Han Juan , Zhu Lu , Fang Hai , Wang Jian , Wu Peng
Published: July 2021

This article proposed an innovative composite sandwich structure reinforced with trapezoidal latticed webs with angles of 45°, 60° and 75°. Four specimens were conducted according to quasi-static compression methods to investigate the compressive behavior of the novel composite structures. The experimental results indicated that the specimen with 45° trapezoidal latticed webs showed the most excellent energy absorption ability, which was about 2.5 times of the structures with vertical latticed webs. Compared to the traditional composite sandwich structure, the elastic displacement and ultimate load-bearing capacity of the specimen with 45° trapezoidal latticed webs were increased by 624.1 and 439.8%, respectively. Numerical analysis of the composite sandwich structures was carried out by using a nonlinear explicit finite element (FE) software ANSYS/LS-DYNA. The influence of the thickness of face sheets, lattice webs and foam density on the elastic ultimate load-bearing capacity, the elastic displacement and initial stiffness was analyzed. This innovative composite bumper device for bridge pier protection against ship collision was simulated to verify its performance. The results showed that the peak impact force of the composite anti-collision device with 45° trapezoidal latticed webs would be reduced by 17.3%, and the time duration will be prolonged by about 31.1%.
PENGEMBANGAN MODUL DAN CD â€œBELADAâ€ UNTUK BERNYANYI LAGU DAERAH SISWA KELAS III
Authors: Khatrisnantyas Tunjung Arum
Published: July 2021

ABSTRAK

Penelitian ini bertujuan untuk mengembangkan bahan ajar, mengetahui kelayakan serta keefektifan Modul dan CD Belada dalam meningkatkan hasil belajar dan keterampilan bernyanyi lagu daerah siswa kelas III di SD Negeri Pudakpayung 02 Kota Semarang. Jenis penelitian ini adalah pengembangan (Research and Development) dengan metode penelitian menurut Sugiyono. Teknik pengumpulan data menggunakan teknik tes, unjuk kerja, observasi, wawancara. Hasil Penelitian menunjukkan bahwa persentase dari ahli materi 93,2% dengan kriteria sangat layak dan ahli media 87,5% dengan kriteria sangat layak. Rata-rata hasil belajar kognitif siswa meningkat 60,64 menjadi 79,67. Sedangkan rata-rata hasil belajar psikomotorik siswa meningkat 62,09 menjadi 80,96. N-gain yang keseluruhan aspeknya berada pada kriteria sedang. Manfaat dari penelitian ini adalah menambah bahan ajar baru, membantu guru dalam mengajarkan lagu daerah dan membantu siswa dalam meningkatkan pemahaman serta keterampilan dalam bernyanyi lagu daerah. Simpulan penelitian ini yaitu dengan menggunakan Modul dan CD Belada efektif untuk meningkatkan hasil belajar dan keterampilan bernyanyi lagu daerah siswa.

This study aimed to develop teaching module, determine the viability and effectiveness of the Belada Module and CD in improving learning outcomes and singing skills of third grade students at Pudakpayung 02 Elementary School Semarang City. The type of this research was Research and Development with the research method according to Sugiyono. The data collection techniques used test techniques, performance, observation, interviews. The results showed that the percentage of content expert was 93.2% with very viable criteria and 87.5% from media expert with very viable criteria. The average of students' cognitive learning outcomes increased from 60.64 to 79.67. While the average of students' psychomotor learning outcomes increased from 62.09 to 80.96. N-gain showed all aspects were in moderate criteria. The conclusion of this research was "Belada" module and CD was effectively used to improve learning outcomes and students' singing skills. The benefits of this research were facilitating teaching module, assisting teachers in teaching folk songs and helping students improve their understanding and skills in singing folk songs.
HUBUNGAN MOTIVASI DAN DISIPLIN BELAJAR TERHADAP HASIL BELAJAR MUPEL PJOK
Authors: Nasihah Zahrotun
Published: July 2021

Abstrak

Tujuan penelitian ini adalah menguji adanya hubungan yang positif dan signifikan antara motivasi dan disiplin belajar dengan hasil belajar Mupel PJOK pada siswa kelas V SDN Gugus Larasati Kecamatan Gunungpati Semarang. Penelitian ini adalah penelitian kuantitatif jenis korelasi. Pengambilan sampel dilakukan dengan teknik sampel jenuh sejumlah 119 siswa. Teknik pengumpulan data menggunakan angket, observasi, wawancara dan dokumentasi. Uji instrumen dilakukan dengan uji validitas dan uji reliabilitas. Teknik analisis data yang digunakan adalah analisis statistic deskriptif dan analisis product moment. Hasil analisis data dalam penelitian ini menunjukkan adanya hubungan yang positif dan signifikan antara motivasi dan disiplin belajar mupel PJOK, nilai r hitung =0,743 dan  termasuk kategori kuat serta berkontribusi sebesar 55,1 %. Simpulan dari penelitian ini yaitu adanya hubungan yang positif dan signifikan antara motivasi dan disiplin belajar dengan hasil belajar Mupel PJOK siswa kelas V SDN Gugus Larasati Kecamatan Gunungpati Semarang.

The purpose of this study was to examine  the existence of a positive and significant correlation between motivation and learning discipline towards outcomes of sport and physical learning to the fifth grade students of the Larasati Elementary School Cluster, Gunungpati, Semarang. This research was a quantitative approach. The sampling technique used saturated sampling of 119 students. The data collection techniques were questionnaires, observation, interviews, and documentation. The instrument test used validity and reliability test. The data analysis techniques used were descriptive statistical analysis and product moment correlation analysis. The results of data analysis in this study showed that there was a positive and significant correlations between motivation and learning discipline and sport science learning outcomes, Rcount =0.743, and  included in a strong category and contributes 55,1%. The conclusion of this study there was a positive and significant correlation between motivation and learning discipline towards outcomes of sport and physical learning at fifth grade students of the Larasati Elementary School Cluster, Gunungpati, Semarang.
HUBUNGAN DISIPLIN DAN MOTIVASI BELAJAR TERHADAP HASIL BELAJAR PPKN
Authors: Hermawan Mohammad
Published: July 2021

Abstrak Tujuan dari penelitian ini adalah mengetahui hubungan antara disiplin dan motivasi belajarterhadap hasil belajar PPKn.; Penelitian ini merupakan penelitian korelasi dengan pendekatankuantitatif. Subjek penelitian adalah siswa kelas III SD Gugus Ki Hajar Dewantara KecamatanMargorejo Kabupaten Pati. Teknik sampel yang digunakan adalah Simple Random Samplingsebanyak 160 siswa. Teknik pengumpulan data menggunakan angket, dokumentasi, danwawancara. Sedangkan, teknik analisis data dalam penelitian ini terdiri dari analisis statistikdeskriptif, analisis uji prasyarat dan analisis data akhir menggunakan uji korelasi sederhana, ujikorelasi ganda, uji F dan uji determinasi. Hasil penelitian menunjukkan adanya hubungan antaradisiplin dan motivasi belajar terhadap hasil belajar PPKn dengan nilai rhitung sebesar 0,927dibandingkan rtabel 0,155 dengan nilai signifikan 0,05. Hasil rhitung termasuk katagori kuat danmemberikan kontribusi sebesar 86%. Dari hasil penelitian dapat disimpulkan bahwa ada hubunganyang positif dan signifikan antara disiplin dan motivasi belajar terhadap hasil belajar PPKn.

The purpose of this study was to determine the relationship between discipline and learningmotivation on the learning outcomes of civic education. This type of research is correlation researchwith a quantitative approach. The subjects of the study were the third grade students of the Ki HajarDewantara Elementary School in Margorejo Subdistrict, Pati Regency. The sample technique usedwas Simple Random Sampling with 160 students. Data collection techniques using questionnaires,documentation, and interviews. Meanwhile, data analysis techniques in this study consisted ofdescriptive statistical analysis, prerequisite test analysis and final data analysis using a simplecorrelation test, multiple correlation test, F test and determination test. The results showed arelationship between discipline and learning motivation towards the learning outcomes of civiceducation with a calculated value of 0.927 compared to rtable of 0.155 with a significant value of0.05. The calculated results include the strong category and contributed 86%. From the results of thestudy it can be concluded that there is a positive and significant relationship between discipline andlearning motivation towards the learning outcomes of civic education.
HUBUNGAN DISIPLIN DAN KEMANDIRIAN BELAJAR DENGAN HASIL BELAJAR MUATAN IPS
Authors: Solichah Lusiati
Published: July 2021

Tujuan penelitian ini adalah untuk menguji adanya hubungan yang positif dan signifikan antara disiplin dan kemandirian belajar dengan hasil belajar muatan IPS siswa kelas IV SDN Gugus Ki Hajar Dewantara Kabupaten Kebumen. Penelitian ini adalah penelitian kuantitatif jenis korelasi. Pengambilan sampel dilakukan dengan teknik Proportional Random Sampling sejumlah 112 siswa. Teknik pengumpulan data menggunakan angket, observasi, wawancara, dan dokumentasi. Uji instrumen dilakukan dengan uji validitas dan uji reliabilitas. Teknik analisis data yang digunakan adalah analisis statistik deskriptif dan analisis product moment. Hasil analisis data dalam penelitian ini menunjukkan adanya hubungan yang positif dan signifikan antara disiplin dan kemandirian belajar dengan hasil belajar muatan IPS, nilai rhitung = 0,791 dan termasuk kategori kuat serta berkontribusi sebesar 62,6%. Simpulan dari penelitian ini yaitu adanya hubungan yang positif dan signifikan antara disiplin dan kemandirian belajar dengan hasil belajar muatan IPS siswa kelas IV SDN Gugus Ki Hajar Dewantara Kabupaten Kebumen.

 

The purpose of this study was to examine the existence of a positive and significant correlation between learning discipline and learning independence with social studies learning outcomes the fourth grade students of the State Elementary Schools of Ki Hajar Dewantara Cluster in Kebumen Regency. This research was a quantitative type of correlation study. The sampling technique used proportional random sampling of 112 students. The data collection techniques are questionnaires, observation, interviews, and documentation. The instrument test used validity and reliability test. The data analysis techniques used were descriptive statistical analysis and product moment correlation analysis. The results of data analysis in this study showed there was a positive and significant correlation between learning discipline and learning independence with social studies learning outcomes, Rcount = 0.791 and included in a strong category and contributes 62.6%. The conclusion in this study there was a positive and significant correlation between learning discipline and learning independence with social studies learning outcomes the fourth grade students of the State Elementary Schools of Ki Hajar Dewantara Cluster in Kebumen Regency.
MEDIA APLIKASI BELAJAR CERDAS BERBASIS ANDROID DENGAN MODEL TPS PADA MUPEL IPS
Authors: Utami Peggi
Published: July 2021

Observasi dikelas V SD Negeri Krapyak menunjukkan bahwa guru belum memanfaatkan media pembelajaran khususnya berbasis IT, yang berpengaruh pada rendahnya hasil belajar siswa. Sehingga dilakukan pengembangan media Aplikasi Belajar Cerdas berbasis android. Penelitian ini bertujuan menguji kelayakan dan keefektifan media pembelajaran Aplikasi Belajar Cerdas berbasis android pada mupel IPS SD Negeri Krapyak. Jenis penelitian ini adalah penelitian pengembangan (R&D), dengan subjek penelitian siswa kelas V SD Negeri Krapyak. Teknik pengumpulan data menggunakan teknik tes, observasi, wawancara, angket dan dokumentasi. Teknik analisis data menggunakan deskriptif persentase, uji normalitas, uji t-tes dan uji n-gain. Hasil penelitian ini menunjukkan bahwa (1) media Aplikasi Belajar Cerdas berbasis android telah dikembangkan; (2) media Aplikasi Belajar Cerdas berbasis android dinyatakan sangat layak oleh ahli media dan ahli materi; (3) media Aplikasi Belajar Cerdas berbasis android terbukti efektif meningkatkan hasil belajar siswa pada ranah kognitif dengan uji t-test paired sample test dan n-gain. Berdasarkan hasil penelitian, dapat disimpulkan bahwa Aplikasi Belajar Cerdas berbasis android dinyatakan layak dan efektif meningkatkan hasil belajar IPS siswa kelas V.

Observation in 5th grade of SD Negeri Krapyak shows that the teacher have not utilized learning media especially IT-based. As a consequence, students learning outcomes were not maximal. Based on that observation, the development media Application Smart Learning based on android is carried out. This study aims to test the feasibility and effectivity of the Application Smart Learning based on android, on social science studies in SD Negeri Krapyak. This type of research is a research and development (R&D), with the subject of research is students of fifth grade at SD Negeri Krapyak. Data collection techniques used test techniques, observation, interviews, questionnaires and documentation. Data analysis techniques used descriptive percentages, normality test, t-test and n-gain test. The results showed that (1) media Application Smart Learning based on android had been developed; (2) media Application Smart Learning based on android is clarified very feasible by experts; (3) media Application Smart Learning based on android is proven to be effective in increasing student learning outcomes in cognitive domain with tï¿¾test paired sample and n-gain. Based on the results of the study, it can be concluded that the Application Smart Learning based on android is feasible and effective to improve the students learning outcomes on social science studies.
KATA TANYA (ISTIFHÂM) DALAM AL-QUR’AN JUZ 20 (ANALISIS SEMANTIK)
Authors: Lisana Ni’matul , Busri Hasan , Irawati Retno Purnama
Published: July 2021

The Qur'an, apart from being a basic guideline in religion, has long been a primary data source in various studies and studies because of the richness of scientific concepts contained in it. Istifhâm as one of the various sentences used as a medium of interaction in the Al-Qur'an. In this study, the researcher discusses the istifhâm in the 20th Al-Qur'an juz. This research is a qualitative research with a research library research design. The purpose of this study was to describe the types and functions of the interrogative words (istifhâm) contained in Al-Qur'an juz 20. The data was collected using purposive sampling technique. The research instruments were data cards and recapitulation sheets. The data analysis technique used the content analysis method. The results of this study indicate that the researchers found 32 data in the form of adawatul istifhâm, including hamzah, man, hal, maa, aina, kaifa, maadzaa, am, and ayyana consisting of 26 istifhâm majazi and 8 istifhâm haqiqi data which are divided into 9 functions and istifhâm goals.

 

Al Qur’an selain sebagai pedoman pokok dalam beragama sejak dahulu telah menjadi sumber data primer dalam berbagai penelitian dan studi karena kekayaan konsep keilmuan yang ada di dalamnya. Istifhâm sebagai salah satu ragam kalimat yang digunakan sebagai media interaksi dalam Al-Qur’an. Dalam penelitian ini peneliti membahas istifhâm pada Al-Qur’an juz ke 20. Penelitian ini merupakan penelitian kualitatif dengan desain penelitian library research. Tujuan penelitian ini adalah untuk mendeskripsikan jenis-jenis dan fungsi kata tanya (istifhâm) yang terdapat dalam Al-Qur’an juz 20. Pengumpulan data dilakukan menggunakan teknik sampling pertimbangan (purposive sampling). Instrumen penelitian berupa kartu data dan lembar rekapitulasi. Teknik analisis data menggunakan metode analisis isi. Hasil penelitian ini menunjukkan bahwa peneliti menemukan 32 data yang berupa adawatul istifhâm antara lain hamzah, man, hal, maa, aina, kaifa, maadzaa, am, dan ayyana yang terdiri atas 26 istifhâm majazi dan 8 data istifhâm haqiqi yang dibedakan menjadi 9 fungsi dan tujuan istifhâm.
Legal Discourse: The Spirit of Democracy and Human Rights Post Simultaneous Regional Elections 2020 in the Covid-19 Pandemic Era
Authors: Hamdani Fathul , Fauzia Ana
Published: July 2021

The implementation of these simultaneous regional elections is certainly a separate discourse that is interesting to be learned, especially concerning the enforcement of democracy and human rights. The main objectives of this research focus on the analysis related to the relationship between democracy and human rights, the fundamental dignity of democracy and human rights after the implementation of the regional leaderâ€™s elections in 2020, and also the governmentâ€™s responsibility in case of an increase in cases of Covid-19 resulting from the implementation of simultaneous regional elections. In this research, the method used is normative juridical using statutory, conceptual, and historical approaches. The research results centered on a conception of democracy and human rights as a conception of humanity born from the history of human civilization. This conception of human rights and democracy in its development is significantly related to the conception of state law. Thus, the existence of Indonesia as a legal state places the law as a hierarchicalunity of the legal norms that culminate in the constitution, and the constitution has clearly and clearly stated in Article 28I paragraph (4) of the Constitution that: â€œThe protection, promotion, enforcement, and fulfillment of human rights is the responsibility of the state, especially the government." Therefore, the state is responsible for ensuring the enforcement of the human rights of citizens, especially after the implementation of the 2020 regional leader elections (hereinafter as pilkada) amid the Covid-19 pandemic era.