bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH KEPEMIMPINAN KEPALA SEKOLAH DAN EFIKASI DIRI GURU TERHADAP KINERJA GURU
Authors: Haq Nuzilal , Tholkhah Imam , Primarni Amie 
Published: August 2020

ABSTRACT
The phenomenon that occurs based on data from the Bogor District Education Office, regarding Elementary School Teachers in Cluster IV, Pamijahan sub-district, Bogor Regency, turns out that the performance of elementary school teachers is still low. This is shown from the average results of the performance evaluation of elementary school teachers in Cluster IV Pamijahan sub-district by the Bogor District Government in collaboration with the Bogor District Education Office in 2016 showing that the performance of elementary school teachers in Cluster IV Pamijahan sub-district Bogor Regency is relatively low at an average of 41 72%. If this problem does not get attention and is left by educators including the principal, then the quality of the learning process will remain low, making it impossible for efforts to improve the quality of education to achieve significant results. This study aims to determine and find the relationship between the principal's leadership and teacher's self-efficacy both together and partially with the performance of teachers in Cluster IV Pamijahan sub-district. This study uses correlational research methods to solve problems. The population in this study were all elementary school teachers in Cluster IV, Pamijahan sub-district, Bogor Regency with a total of 283 people. The sample in this study was taken with Stratifield Proportional Random Sampling totaling 166 respondents from 34 public elementary schools in Cluster IV Pamijahan sub-district. Data collection techniques for all variables using a questionnaire. Data analysis techniques using correlation analysis, multiple correlation, regression, multiple regression and coefficient of determination with the prerequisite test analysis is the normality test.
Based on the results of the study it can be concluded: (1) Based on the results of the test of the significance of the correlation shows that t arithmetic > t table (2.268> 1.981) Thus the research hypothesis which states there is a relationship between the leadership of the school principal and the performance of elementary school teachers in group IV Pamijahan District is proven to be true. (2) Based on the results of testing the significance of the correlation shows that t arithmetic> t table (2.767> 1.981) Thus the research hypothesis which states that there is a relationship between self-efficacy and the performance of elementary school teachers in cluster IV Pamijahan District tested the truth. (3) Based on the results of the significance test of multiple linear regression equations, Fcount is 3.78 while Ftable for denominator 2 and numerator 109 for confidence level α = 0.05 is 3.08 which means the value of Fcount> Ftable (3.78> 3, 08). This shows that Ho was rejected, meaning Ha who stated there was a positive relationship between the principal's leadership and the teacher's self-efficacy together with the teacher's performance was acceptable
Keywords: Teacher Performance, Principal Leadership and Teacher Self-Efficacy
PENGARUH KEPEMIMPINAN INSTRUKSIONAL DAN IKLIM SEKOLAH TERHADAP KEPUASAN KERJA GURU PADA SEKOLAH DASAR NEGERI SE-KECAMATAN PAMIJAHAN KABUPATEN BOGOR
Authors: Aji Aji , Qowaid Qowaid , Faqihuddin M 
Published: August 2020

ABSTRACT
The principal is an important leader at the school level. They have many functions of daily work at school to improve the teaching and learning process. However, the reality is that many school principals are apparently too busy with all the daily responsibilities in managing and running a school. This gives the impression that the principals must give a lot of attention to becoming instructional leaders because this can help a lot both in the teaching and learning process which can lead to the quality of education. In addition, the school is an organization that has certain objectives that must be achieved. To achieve this goal, the climate of the school organization is very important. On the basis of the above, it is clearly seen that job satisfaction of a teacher is determined by at least two supporting variables, including the leadership of the school principal and the school climate. Based on these ideas the researcher is interested in conducting a study conducted to reveal two variables that are significantly related. The purpose of this study was to determine the effect of instructional leadership style and school climate both partially, and together with the teacher's job satisfaction. The approach in this research is a quantitative approach. The unit of analysis in this study was the Public Elementary School in Pamijahan sub-district, Bogor Regency, while the respondents consisted of PNS SDN teachers in Pamijahan, Bogor Regency.
Based on the results of a simple regression test, from the calculation results obtained t count of 2.786 while the table at the level of confidence α = 0.05 with dk = 48 is equal to 2.010. Based on the results of testing the significance of the correlation shows that tcount> ttable (2.786> 2.010). Thus the research hypothesis which states that there is a positive influence of instructional leadership (X1) on teacher job satisfaction (Y) is proven true. From the calculation results obtained t count of 3.832, while t table at the level of confidence α = 0.05 with dk = 48 is equal to 2.010. Based on the results of testing the significance of the correlation shows that t arithmetic> t table (3,832> 2,010). Thus the research hypothesis which states that there is a positive influence of the school climate (X2) on teacher job satisfaction (Y) is proven to be true. Furthermore, based on multiple regression tests Based on the results of the significance test of multiple linear regression equations obtained Fcount of 7.199 while Ftable for the denominator 2 and numerator 47 for the level of trust α = 0.05 of 3.20 which means the value of Fcount> Ftable (7.199> 3.20) . This shows that Ho was rejected, meaning Ha who stated there was a positive influence of instructional leadership and school climate together on teacher job satisfaction was acceptable.
Keywords: Instructional Leadership, School Climate and Job Satisfaction Teacher.
Major Orthopaedic Conference Abstract Publication: An Analysis of Abstracts Accepted for the AAOS Annual Meetings Between 2014 and 2017
Authors: Le Ryan , Anderson Amanda , Chalmers Christen E. , Scolaro John A. , Lee Yu-Po , Bhatia Nitin 
Published: August 2020

Introduction:The American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting provides an opportunity for clinicians to attain the most recent advancements in the orthopaedic field. However, the most recent study analyzing publication rates from the 2001 Annual Meeting determined that only 49% of the podium and poster abstracts were eventually published. The purpose of this study was to determine the publication rate, likelihood of publication based on the presentation format, and time to publication for abstracts presented at the 2014 to 2017 AAOS Annual Meetings.Methods:We did a comprehensive search of PubMed and Google Scholar to determine whether abstracts presented in the podium, poster, and scientific exhibit formats from the 2014 to 2017 AAOS Annual Meetings were published in a peer-reviewed journal. Abstract title, authors, and keywords were used to query for publication status and date of publication.Results:We analyzed 5,902 abstracts from the 2014 to 2017 AAOS Annual Meetings. The overall publication rate for podium and poster presentations was 69.9%, with individual publication rates at 73.0% and 65.1%, respectively. A higher likelihood of publication in the podium format was noted with odds ratio 1.45 (P< 0.0001). Scientific exhibits displayed a publication rate of 46.9%. Most publications in all formats occurred within 2 years.Conclusion:A large increase was noted in the quality of research being presented at the AAOS Annual Meeting. With 69.9% of podium and poster presentations from the 2014 to 2017 Annual Meetings being published in a peer-reviewed journal, clinicians can use the data presented as an up-to-date, adjunct source of guidance for their clinical practices.
A política do amor: (des)subjetivação dos corpos em Love, de Gaspar Noé
Authors: Guimarães Jonatas Aparecido 
Published: August 2020

Este artigo propõe uma leitura do filme Love, de Gaspar Noé, observando-se os movimentos de (des)subjetivação dos personagens, a partir da perspectiva do controle sobre a vida instaurada pela biopolítica. No decorrer de suas cenas, a produção cinematográfica em análise esvazia um possível subjetivismo que poderia ser sugerido pelo título, de forma que o amor é construído como uma relação puramente corporal. Essa dessubjetivação, mais que um aspecto temático, é incorporada à própria composição estética do filme, cujas fotografias e enquadramentos, ao promoverem a hiperexposição de cenas de sexo, operam uma fusão dos corpos que leva à dissolução dos indivíduos. Procura-se demonstrar, dessa maneira, que há nessa construção estética uma encenação da violência implícita nas relações sexuais e na própria ideia de amor, uma vez que ambos são codificados por discursos que pressupõem, em última análise, o controle da vida e da morte. Por fim, procura-se evidenciar que a produção de Gaspar Noé assume uma dimensão política quando, ao trazer para o palco a hiperexposição da obscenidade, promove uma reconfiguração do sensível que permite entrever possibilidades de reencontro entre o sujeito e o corpo.
The species of the bee genus Centris of the “hyptidis group” revisited with the description of Centris (Anisoctenodes) new subgenus (Hymenoptera: Apidae: Centridini)
Authors: Vivallo Felipe 
Published: August 2020

In this paper, the species of Centris of the “hyptidis group” are revisited, proposing to recognize them as members of Anisoctenodes subgen. nov., a new subgenus supported by morphological and molecular data. The species included in this new taxon are C. hyptidis Ducke, 1908 (type-species), C. hyptidoides Roig-Alsina, 2000, C. thelyopsis Vivallo & Melo, 2009 and C. anisitsi (Schrottky, 1908), transferring this latter from Centris (Xanthemisia) Moure, 1945. An updated key, information on the type depository, a distribution map, photographs of both sexes as well as of the diagnostic characters of the new subgenus are also provided.
Gender, generation, and personal destinies: histories of women and men textile workers in Bahia, Brazil
Authors: Sardenberg Cecilia Maria Bacellar 
Published: August 2020

This paper analyzes gender inequalities in the industrial development of Bahia, Brazil, on the basis of work-histories of women and men textile workers in Salvador, residents of a former workers’ villa owned by Fábrica São Braz, a factory which closed in the late 1950s. It compares and contrasts (dis)continuities found along gender and generation lines, showing that while most of these workers were not absorbed by new industry, this was especially true for the older generation and particularly marked in the case of women: 1) women worked at the less skilled occupations in the mill, many of which became obsolete with the production of synthetic textiles; 2) while traditional industries had relied primarily on the employment of women, new industry employed mainly men; and 3) jobs away from their neighborhood made the reconciling of wage work and domestic activities more difficult for women. They were left with few options but that of resorting to the so-called ‘informal sector’, becoming laundresses, domestic servants, petty-commodity producers, operators of food stands, and the like. This break with their condition as industrial workers would be extended to the succeeding generations of women in the community. The daughters of former factory workers are no longer factory workers themselves. These findings show that the divide resulting from the workings of patriarchal gender ideology has sharply imprinted the history of textile workers in Bahia. This calls for efforts towards the ‘gendering’ of Brazilian labor history. Keywords: Textile Workers. Gender Divide. Deskilling of Industrial Workers. Labor History. Bahia, Brazil.
Nas tecituras do trabalho operário: a produção têxtil e a vida incerta na Fábrica Carmen em Fernão Velho – AL (anos 1940 – 1960)
Authors: Tavares Marcelo Góes 
Published: August 2020

Este artigo traz como proposta, narrar a experiência histórica do trabalho operário no ramo têxtil em Fernão Velho, Alagoas. Essa localidade faz parte de um território fabril formado pela Fábrica Carmen, outrora Companhia União Mercantil, e sua vila operária. Nessa narrativa, são recuperados historicamente a produção têxtil, o trabalho operário, as condições de trabalho na fábrica, as representações de classe, e movimentos de resistência de trabalhadores. Como corpus documental, são utilizados relatos de operários registrados através da metodologia da história oral, relatórios da fábrica publicados no diário oficial de Alagoas, fotografias, processo trabalhista, matérias de jornais, atas de sindicato, entre outras. As análises apresentadas transitam em estudos sobre poder, cultura, memória e história, história política e do trabalho. Palavras-chave: Trabalho operário. Produção têxtil. Resistências. Fábrica Carmen.
Secreted cystatins decrease proliferation and enhance apoptosis of human leukemic cells
Authors: Hunaiti Samar , Wallin Hanna , Eriksson Mia , Järås Marcus , Abrahamson Magnus 
Published: August 2020

Cysteine proteases are implicated in proteolysis events favoring cancer cell growth, spread, and death by apoptosis. Herein, we have studied whether the net growth and survival of the leukemic cell lines Jurkat, U937, and HL‐60 are affected by external addition of five proteins acting as natural cysteine protease inhibitors. None of the cystatins examined (A, C, D, and E/M) or chagasin showed consistent effects on Fas‐induced apoptosis when evaluated at 1 µm. In contrast, when the intrinsic apoptosis pathway was activated by hydrogen peroxide, addition of cystatin D augmented caspase‐3‐like activity within all three cell lines. Flow cytometric analysis of U937 cells also showed increased numbers of annexin V‐positive cells when hydrogen peroxide was used to initiate apoptosis and cells were cultured in the presence of cystatin D or C. Moreover, stimulation of hydrogen peroxide‐induced apoptotic U937 cells with either cystatin C or D resulted in a dose‐dependent decrease in the number of cells. Cell viability was also decreased when U937 cells were cultured in the presence of cystatin C or D (1–9 µm) only, demonstrating that these cystatins can reduce cell proliferation by themselves in addition to enhancing apoptosis induced by oxidative stress. These effects on U937 cells were paralleled by internalization of cystatins C and D, indicating these effects are caused by downregulation of intracellular proteolysis. External addition of cystatins C and D to HL‐60 and Jurkat cells demonstrated similar degrees of cystatin D uptake and decreased viability as for U937 cells, indicating that these effects are general for leukemic cells.
Photoluminescence Upconversion Spectroscopy
Authors: Chosrowjan Haik , Taniguchi Seiji 
Published: August 2020

AbstractThe basic physical concepts and main characteristics of transient photoluminescence upconversion spectroscopy, including requirements for nonlinear crystals, acceptance angle, quantum efficiency for upconversion, group velocity mismatch, and photometric calibration, are presented. The main aspects relevant to building an ultrafast upconversion spectrometer are emphasized. Single‐wavelength and broadband implementations of the technique, as well as photoluminescence upconversion microscope, have been presented and discussed. Application examples of the technique in different fields of physics, chemistry, and biology have been presented.
Characterization of an inorganic scintillator for small‐field dosimetry in MR‐guided radiotherapy
Authors: Cusumano Davide , Placidi Lorenzo , D'Agostino Emiliano , Boldrini Luca , Menna Sebastiano , Valentini Vincenzo , De Spirito Marco , Azario Luigi 
Published: August 2020

AbstractIntroductionAim of this study is to dosimetrically characterize a new inorganic scintillator designed for magnetic resonance‐guided radiotherapy (MRgRT) in the presence of 0.35 tesla magnetic field (B).MethodsThe detector was characterized in terms of signal to noise ratio (SNR), reproducibility, dose linearity, angular response, and dependence by energy, field size, and B orientation using a 6 MV magnetic resonance (MR)‐Linac and a water tank.Field size dependence was investigated by measuring the output factor (OF) at 1.5 cm. The results were compared with those measured using other detectors (ion chamber and synthetic diamond) and those calculated using a Monte Carlo (MC) algorithm.Energy dependence was investigated by acquiring a percentage depth dose (PDD) curve at two field sizes (3.32 × 3.32 and 9.96 × 9.96 cm2) and repeating the OF measurements at 5 and 10 cm depths.ResultsThe mean SNR was 116.3 ± 0.6. Detector repeatability was within 1%, angular dependence was <2% and its response variation based on the orientation with respect to the B lines was <1%.The detector has a temporal resolution of 10 Hz and it showed a linear response (R2 = 1) in the dose range investigated. All the OF values measured at 1.5 cm depth using the scintillator are in accordance within 1% with those measured with other detectors and are calculated using the MC algorithm. PDD values are in accordance with MC algorithm only for 3.32 × 3.32 cm2 field. Numerical models can be applied to compensate for energy dependence in case of larger fields.ConclusionThe inorganic scintillator in the present form can represent a valuable detector for small‐field dosimetry and periodic quality controls at MR‐Linacs such as dose stability, OFs, and dose linearity.In particular, the detector can be effectively used for small‐field dosimetry at 1.5 cm depth and for PDD measurements if the field dimension of 3.32 × 3.32 cm2 is not exceeded.
Thermodynamically Metal Atom Trapping in Van der Waals Layers Enabling Multifunctional 3D Carbon Network
Authors: Xu Ming , Li Tianwei , Fei Linfeng , Li Huangxu , Guo Xuyun , Hou Peiyu , Ying Yiran , Zhu Wenlei , Zhou Yang , Lin Yue , Zhang Zhian , Lai Yanqing , Zhu Ye , Zhang Haiyan , Huang Haitao 
Published: August 2020

AbstractThe construction of 3D graphitic structures can lead to many important scientific study and nanotechnology applications, but its widespread use can be limited by the narrow van der Waals gap (vdW; <0.35 nm). Here, this study reports the use of natural adsorbent organisms to engineer the expanded graphitic structure. It shows that, in chitosan, the abundant amino (NH2) and hydroxyl (OH) groups can act as metal ions “pitfalls” for the growth of catalytic transition‐metal crystals under thermally reductive conditions. In situ transmission electron microscopy study reveals the “liquidized” migration process of Ni carbide crystal that catalyzes the graphitization of 3D carbon network and enables the expansion of vdW gaps. A correlation between the thermodynamically trapped metal atoms and the expansion of vdW gaps is established by expanding the study to both Co and Cu. The findings provide insights into new strategy to be explored for engineering 3D carbon‐based materials and show significant potential in energy storage and catalysis technologies.
Recombinant Spider Silk Forms Tough and Elastic Nanomembranes that are Protein‐Permeable and Support Cell Attachment and Growth
Authors: Gustafsson Linnea , Tasiopoulos Christos Panagiotis , Jansson Ronnie , Kvick Mathias , Duursma Thijs , Gasser Thomas Christian , van der Wijngaart Wouter , Hedhammar My 
Published: August 2020

AbstractBiologically compatible membranes are of high interest for several biological and medical applications. Tissue engineering, for example, would greatly benefit from ultrathin, yet easy‐to‐handle, biodegradable membranes that are permeable to proteins and support cell growth. In this work, nanomembranes are formed by self‐assembly of a recombinant spider silk protein into a nanofibrillar network at the interface of a standing aqueous solution. The membranes are cm‐sized, free‐standing, bioactive and as thin as 250 nm. Despite their nanoscale thickness, the membranes feature an ultimate engineering strain of over 220% and a toughness of 5.2 MPa. Moreover, they are permeable to human blood plasma proteins and promote cell adherence and proliferation. Human keratinocytes seeded on either side of the membrane form a confluent monolayer within three days. The significance of these results lays in the unique combination of nanoscale thickness, elasticity, toughness, biodegradability, protein permeability and support for cell growth, as this may enable new applications in tissue engineering including bi‐layered in vitro tissue models and support for clinical transplantation of coherent cell layers.
Integrated Biomonitoring Sensing with Wearable Asymmetric Supercapacitors Based on Ti3C2 MXene and 1T‐Phase WS2 Nanosheets
Authors: Vaghasiya Jayraj V. , Mayorga‐Martinez Carmen C. , Vyskočil Jan , Sofer Zdeněk , Pumera Martin 
Published: August 2020

AbstractResearch on wearable sensing technologies has been gaining considerable attention in the development of portable bio‐monitoring devices for personal health. However, traditional energy storage systems with defined size and shape have inherent limitations in satisfying the performance requirements for flexible electronics. To overcome this constraint, three different configurations of flexible asymmetric supercapacitor (FASC) are fabricated on polyester/cellulose blend (PCB) cloth substrate using Ti3C2 nanosheet (NS) and 1T WS2 NS as electrodes, and aqueous pluronic gel as an electrolyte. Benefiting from the 2D material electrodes, the interdigitated FASC configuration exhibits excellent performance, flexibility, cyclic stability, wearability and can be configured into multiple units and shapes, which far exceed that exhibited by the textile‐based FASC. Furthermore, the arbitrary (“AFN”) and sandwich (“FLOWER”) configurations Ti3C2 NS/1T WS2 NS FASC can be assembled directly on a PCB cloth substrate, thereby offering good structural integrity coupled with ease of assembly into integrated circuits of different shapes. More specifically, a lightweight, flexible, and wearable bio‐monitoring system is developed by integrating force sensing device with interdigitated FASC, which can be used to monitor the physical status of human body during various activities. A potential application of this system in healthcare is successfully demonstrated and discussed.