bluuebunny/crossref_metadata_2025 huggingface dataset:
Pola Asuh Orang Tua Otoriter dengan Kemampuan Activities Of Daily Living (ADL) pada Anak Retardasi Mental Usia 6-12 Tahun di SLB Yayasan Putra Asih Kediri Tahun 2018
Authors: Katmini Katmini , Syakur Abd
Published: March 2020

Tujuan penelitian ini untuk mengetahui ada hubungan pola asuh orang tua otoriter dengan kemampuan Activities Of Daily Living (ADL) pada anak retardasi mental usia 6-12 tahun. Studi Analitik korelasional dengan pendekatan cross sectional. Dengan jumlah sampel 30 orang tua yang mempunyai anak retardasi mental usia 6-12 tahun, dengan teknik total sampling. Pengumpulan data dengan kuesioner dan observasi, Analisis dengan uji rank spearman. Hasil analisis dapat diperoleh data uji rank spearman dengan nilai sig (2-tailed) atau p = 0,000 dan taraf kesalahan atau =0,05, jadi p<, 0,000< 0,05 .Hasil penelitian besar responden memiliki pola asuh tidak otoriter yaitu sebanyak 24 responden (80%) dan hampir seluruh anak retardasi mental usia 6-12 tahun tidak mampu melakukan kemampuan ADL. Pola asuh otoriter pada orang tua berpengaruh terhadap anak ADL yang diterapkan pada anak sejak dini dapat meningkatkan kemandirian anak, khususnya pada anak retardasi mental.
Peningkatan Ketuntasan Hasil Belajar Kimia pada Materi Hidrokarbon Melalui Model Pembelajaran Deduktif Siswa Kelas XI IPA
Authors: Yuliastuti Yuliastuti
Published: March 2020

Siswa kelas XI IPA 1 di SMAN 4 Kota Blitar pada ulangan blok 1 hanya mencapai ketuntasan belajar kimia sebesar 52,33% siswa. Tujuan penulisan ini adalah untuk mengetahui peningkatan hasil belajar dan kreatifitas siswa Sekolah Menengah Atas Negeri 4 Kota Blitar setelah menggunakan model pembelajaran deduktif. Model pembelajaran deduktif merupakan model pembelajaran yang mengajarkan mata pelajaran berupa konsep atau penggeneralisasian yang cara penyajian pelajaran ini diawali dengan proses berfikir yang bertolak dari pernyataan bersifat umum dan lebih bersifat terbuka sehingga memberikan kesempatan lebih banyak pada siswa untuk menemukan gagasan baru hasil pemprosesan informasi selama proses pembelajaran. Penelitian ini merupakan penelitian tindakan kelas yang terdiri dari tiga siklus. Masing-masing siklus meliputi menyatakan abstraksi, ilustrasi contoh yang dibuat siswa, dan penutup. Adapun fokus dalam penelitian ini adalah hasil belajar dan kreatifitas siswa kelas XI IPA 1 SMAN 4 Kota Blitar tahun ajaran 2019/2020. Teknik pengumpulan data yang digunakan adalah metode observasi, tes akhir siklus dan angket. Hasil dari penelitian ini adalah rata-rata hasil belajar siswa pada siklus II adalah 2,46 pada siklus II adalah 2,78 dan pada siklus III adalah 3,17, sehingga dalam prestasi ketuntasan belajar pada siklus I adalah 75,55%, siklus II naik menjadi 76,66% dan pada siklus III naik menjadi 82,32%. Kesimpulan dari penelitian ini adalah model pembelajaran deduktif dapat meningkatkan hasil belajar siswa. Saran dari penelitian ini adalah dianjurkan untuk model pembelajaran deduktif perlu diterapkan sebagai salah satu alternatif kegiatan belajar mengajar pada pokok bahasan yang sesuai dengan indikator hasil belajar.
Prediction of Xanton Derivatives as Anti Heart Cancer using In Silico Quantitative Structure-Property Relationships
Authors: Putri Royana Ari Pratiwi , Ananto Agus Dwi , Sudarma I Made
Published: February 2020

Quantitative Structure-Activity Relationship (QSAR) study have been performed on Xanthone derivatives as anti-cancer activity. The objectives of this research is to design a new Xanthone derivatives from the best  QSAR equation model. The data set were taken from the previous study, involving 41 Xanthone derivatives and their biology activities in Inhibitor Concentration 50 % (IC50). The parameters (descriptors) were calculated by semiempirical PM3 method. The selection of the best QSAR equation models was determined by multilinear regression analysis. The best linear equation resulted from that analysis is: Log 1/IC50 = 13,099 + 2,837 qC1 + 0,098 qC2 + 11,214 qC10 + 2,065 qC13 â€“ 1,236 qC14 + 35,356 qO15 + 0,001 (vol) â€“ 0,025 (log P) + 0,283 (dipole) n = 41; r = 0.735; adjusted r2 = 0.360; Fhit/Ftab = 1.2911; PRESS = 5.0089. Based on that model, a new Xanthon derivatives has been design which show better predicted biology activity (log 1/IC50= 15,0863), new derivatives have the log 1/IC50 higher than the old one (log 1/IC50= 9). This result indicated that new Xanthone derivatives has potential to developed as new anti-cancer drug
QSAR treatment of meisoindigo derivatives as a potentbreast anticancer agent
Authors: Lestari Evie Kama , Ananto Agus Dwi , Septiyana Maulida , Hadisaputra Saprizal
Published: February 2020

A quantitative structure-activity relationship (QSAR) analysis of meisoindigo derivatives as a breast anticancer has been carried out. This study aimed to obtain the best QSAR model in order to design new meisoindigo based compounds with best anticancer activity. The semiempirical PM3 method was used for descriptor calculation. The best QSAR model was built using multilinear regression (MLR) with enter method. It was found that there were 19 new meisoindigo derivativeswith better predictive a potent anticancer agent. The best compound was (E)-2-(1-((3-ethylisoxazol-5-yl)methyl)-2-oxoindolin-3-ylidene)-N-(4-methoxyphenyl)acetamide with the value of IC505.31144 x10-15 (Î¼M).
Synthesis of Rice Husk Mesoporous Silica as pH Responsive Release Material
Authors: Aulia Pidia , Hamdiani Saprini , Sumarlan Iwan
Published: February 2020

The synthesis of mesoporous silica as a delivery agent for the ethyl para-methoxycinnamate has been carried out. The study aims to determine the process of mesoporous silica synthesis from sodium silicate from the smelting of rice husk ash, determine the adsorption capacity of mesoporous silica in the ethyl para-methoxycinnamate and the pH responsive release of ethyl para-methoxycinnamate with mesoporous silica as a delivery agent in simulated intestinal and gastric fluids. It was found that mesoporous silica can be synthesized from rice husk ash with a 30% tartaric acid template. Characterization of mesoporous silica using FTIR spectroscopy showed the presence of silanol (Si-OH) and siloxane (Si-O-Si) functional groups. Mesoporous silica from rice husk ash is able as adsorbent for the ethyl para-methoxycinnamate with the adsorption capacity of 8.26 mg/g. The release test of gastric simulation fluid (pH 1.2) showed that the ethyl-para-methoxycinnamate was released from silica for a period of 12 hours. In the intestinal simulation fluid (pH 7.4), the release of the ethyl para-methoxycinnamate occurred slowly at the first hour, then gradually increased at 5 hour up to 12 hour.
Indonesian Modified Clay for Dye Waste Treatment
Authors: Sumarlan Iwan , Fatimah Is , Wijaya Karna
Published: February 2020

Synthesis and Characterization of TiO2 Coated on Clay Pillared Alumina (PILC) for Methyl Orange Photodegradation Under UV Illumination. The synthesis included both pillarization the clay with alumina and TiO2 coated on PILC using impregnation method. Some characterizations also were employed to this research such as X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), N2 Adsorption Isotherm and UV-Visible Diffuse Reflectance (DR UV). The photocatalyst was then used to decompose waste dye, methyl orange (MO). Among three photocatalysts that were successfully synthesized, PILC Ti 1.0% had the highest activity to decompose the waste dye.
ANALISIS RENCANA PEMASANGAN TRANSFORMATOR SISIPAN PADA SALURAN TRANSFORMATOR DISTRIBUSI PENYULANG PAGUTAN (Studi Kasus: Transformator Distribusi AM097 Di Jalan Banda Seraya, Pagesangan, Kota Mataram)
Authors: Seniari NI Made , Fadli M. Najmul , Ginarsa I Made
Published: February 2020

Data lapangan menunjukkan pembebanan Transformator Distribusi AM097 di Jalan Banda Seraya Pagutan, Kota Mataram, sudah overload sebesar 92,82%,  tegangan pelanggan paling ujung bernilai 183,85 V, rugi daya saluran 15,87 kW. Drop tegangan mencapai 25,10% melebihi batas yang diizinkan dalam SPLN No.72 tahun 1987 dengan nilai maksimal 5%. Untuk memperbaiki kondisi  jaringan maka dilakukan analisis rencana pemasangan transformator sisipan menggunakan simulasi ETAP. Dengan memperhatikan penempatan transformator sisipan pada jarak 313,18 m dari transformator utama, beban transformator utama 69,16%, transformator sisipan kapasitas 100 kVA dibebani 47,13%. Hasil simulasi menunjukkan tegangan di ujung beban 222,3 V, drop tegangan 3,16%, dan rugi daya saluran sebesar 4,16%.
IDENTIFIKASI SUARA MENGGUNAKAN METODE MEL FREQUENCY CEPSTRUM COEFFICIENTS (MFCC) DAN JARINGAN SYARAF TIRUAN BACKPROPAGATION
Authors: Nursholihatun Erina , Sasongko Sudi Mariyanto , Zainuddin Abdullah
Published: February 2020

The voice is basic humans tool of communications. Speakers identifications is the process of recoqnizing the identity of a speaker by comparing the inputed voice features with all the features of each speaker in the database.There are two step of speaker identification process: feature extraction and pattern recognition. For the characteristic extraction phase using Mel Frequency Cepstrum Coefficient (MFCC) method. The method of pattern recognition using backpropagation artificial neural networks that compares the test data with the reference data in the database based on the variable result in the learning process.

The result from the research show that increasing SNR (Signal to Noise Ratio) value will determine the success of the speaker recognition system. The higher SNR (Signal to Noise Ratio), will increase percentage level of recognition. Average accuracy speakers recoqnition of the speakers data without noise generating is 86%, the biggest average accuracy speakers recoqnition is  92 % in the data with 80 dB SNR level, and the lowest average accuracy is  45 % in the data with 80 dB SNR level. Rejection rate testing result of speakers outside the database is 100 %.
IMPLEMENTASI DAN PERANCANGAN SISTEM KENDALI POSISI KETINGGIAN (ALTITUDE) QUADCOPTER BERBASIS ARDUINO UNO R3
Authors: Suksmadana Made Budi , Ramli Zaenudin , Wiriasto Giri Wahyu
Published: February 2020

ABSTRAK

Sebuah quadcopter dilengkapi dengan sensor ultrasonic HC-SR04 yang digunakan untuk membaca jarak yang bertujuan untuk menahan posisi ketinggian dari quadcopter. Pemanfaatan quadcopter tersebut pada bidang militer, multimedia, dan untuk penelitian yang tidak dapat dijangkau oleh manusia akan sangat tepat, khususnya untuk mengambil gambar dan video serta untuk pengambilan data penelitian. Quadcopter yang dirancang ditugaskan untuk mampu menahan posisi ketinggian tertentu sesuai dengan set-point yang diberikan. Pengambilan keputusan sistem, kontrol motor brushless sebagai aktuator, dan pengontrolan sensor-sensor dilakukan oleh mikrokontroler (atmega328). Pengendali kestabilan dan pengaturan posisi ketinggian quadcopter menggunakan kendali PID yang telah diterapkan kedalam sistem. Hasil dari penelitian ini adalah quadcopter mampu menahan posisi ketinggian sesuai dengan set-point yang diberikan dan quadcopter mampu stabil di ketinggian tersebut, untuk menahan posisi ketinggian 10 cm rata-rata error-nya 0.42 cm, posisi ketinggian 20 cm rata-rata error-nya 0.29 cm dan posisi ketinggian 30 cm rata-rata error-nya 0.32 cm.

 

Kata kunci : quadcopter, sensor ultrasonic HC-SR04, IMU MPU6050, mikrokontroler, kendali PID
supriyatna ANALISIS KOORDINASI ISOLASI DI GARDU INDUK KUTA TERHADAP TEGANGAN LEBIH AKIBAT SAMBARAN PETIR PADA SALURAN TRANSMISI 150 KV (Pak Supriyatna)
Authors: Supriyatna Supriyatna , Criyanto Elan , Muljono Agung Budi
Published: February 2020

Sambaran petir pada saluran transmisi 150 kV dapat menimbulkan tegangan lebih yang akan membahayakan peralatan jika tegangan tersebut melampaui tingkat isolasi dasar peralatan (TID). Metode untuk mengetahui nilai lightning performance digunakan teori gelombang berjalan dan elektrogeometris. Metode pantulan berulang digunakan untuk menentukan jarak maksimum antara arrester dengan peralatan yang dilindunginya. Berdasarkan hasil penghitungan diperoleh jumlah gangguan petir pada saluran transmisi 150 kV Sengkol-Kuta yaitu 1,2984 gangguan per 100 km pertahun dengan kualifikasi “Pentanahan bagus; perisai cukup” sehingga tidak perlu dilakukan perbaikan. Koordinasi isolasi di gardu induk Kuta terhadap tegangan lebih akibat sambaran petir pada saluran transmisi 150 kV dikatakan baik karena: Dari hasil perhitungan didapatkan nilai arus pelepasan arrester sebesar 3,9180 kA. Sedangkan arus pelepasan nominal arrester sebesar 10 kA. Hal ini berarti bahwa arus pelepasan arrester lebih kecil 6,0820 kA dari arus pelepasan nominal. Jarak maksimum pemasangan arrester dan transformator sebesar 57 meter. Sedangkan jarak pemasangan arrester dan transformator yang ada dilapangan sebesar 48 meter. Hal ini berarti bahwa jarak pemasangan arrester dan transformator yang ada dilapangan lebih kecil 9 meter dari jarak maksimum arrester dan transformator dari hasil perhitungan. Tegangan akhir yang sampai di transformator sebesar 588,2783 kV. Sedangkan Tingkat Isolasi Dasar (TID) transformator yang digunakan sebesar 650 kV. Hal ini berarti bahwa tegangan tertinggi pada transformator lebih kecil 61,7217 kV dari Tingkat Isolasi Dasar (TID) transformator yang digunakan.
Traumatic Cyclodialysis Cleft Surgical Management Using Encirclage and Cryotherapy : A Novel Approach
Authors: Sood Gitanjli , Rajendran Vinata , Sharma Tarun , Raman Rajiv
Published: March 2020

This is a retrospective case series of 4 patients with traumatic cyclodialysis cleft (CC) with features of hypotony and posterior segment manifestations of blunt trauma who were treated using encirclage and trans scleral cryoptherapy along with vitrectomy. Encirclage was placed anteriorly in order to support the cleft. There was closure of cleft and improvement in Intra ocular pressure (IOP) in all cases. Thus the identification and treatment of CC with encirclage in cases with varied posterior manifestation of trauma can lead to good anatomical and visual restoration.
Sector bias in public programs: US nonprofit hospitals
Authors: Meier Kenneth J. , An Seung-ho
Published: February 2020

This study investigates whether the public perceives nonprofit organizations as different from private for-profit and public organizations and whether introducing new performance management systems would provide positive credits to the organization. Using two randomized survey experiments on US hospitals (one with an adult sample and the other with a student sample), we replicate the study of Hvidman & Andersen (2016) in Denmark with an extension of adding a nonprofit organization cue. The results show no sectoral differences among the hospitals and no positive feedback for adopting a new performance management system.
The Investigation of the Relationship between Teachers’ Creative Thinking Tendencies and Individual Innovativeness Characteristics
Authors: KOZİKOĞLU İshak , KÜÇÜK Bedirhan Ahmet
Published: March 2020

This study aims to investigate the relationship between teachers' creative thinking tendencies and individual innovativeness characteristics. This study used correlational survey model and was carried out with 283 teachers from different branches working in Turkey. "Critical Thinking Dispositions Scale" developed by Özgenel and Çetin (2017), "Individual Innovativeness Scale" adapted into Turkish by Kılıçer and Odabaşı (2010) were used as data collection tools. In data analysis; descriptive statistics (arithmetic mean and standard deviation), differential statistics (t test and ANOVA), Pearson Product Moments Correlation Coefficient and simple linear regression analysis were used. The results show that teachers' creative thinking tendencies are at high level and individual innovativeness characteristics are in the "early adopters" and "early majority" categories. While teachers' creative thinking tendencies and individual innovativeness characteristics did not change significantly according to gender, it was determined that teachers who had 16 years and more experience had a higher level of creative thinking tendencies and individual innovative scores than teachers who had between 1-5 years. A moderate, positive and significant relationship was found to be between teachers' creative thinking tendencies and individual innovativeness characteristics.
The Effects of Mind Games on Higher Level Thinking Skills in Gifted Students
Authors: BAS Ozlem , KUZU Okan , GÖK Bilge
Published: March 2020

The aim of this research is to demonstrate the effect of various mind games, played by students identified as gifted in the elementary school age, on their analytical thinking, critical thinking and decision making skills. To fulfill this aim, the research made use of experimental research pattern and used single group, pre/post-test experimental pattern, which counts among weak experimental patterns. The study group of the research consists of 22 students in a private school located in Çankaya, Ankara in the academic year of 2016-2017. While the inclusion of the private school to the research involved the usage of the convenience sampling method, the inclusion of the gifted students to the research was done through purposive sampling methodology. In this research, various tests: “ACD test” and “Kakuro test” for gifted students were prepared by researchers and used in the research to measure high-level thinking skills of gifted students. In the process, various games: “Rat a Tat Cat” and “Sleeping Queens” were played and effects of these games on students' analytical thinking, critical thinking and decision-making skills were examined. Research outcomes demonstrated improvement in the analytical thinking, critical thinking and decision-making skills of the gifted students as a result of the various mind games they played.
PENGARUH AKUNTABILITAS DAN TRANSPARANSI PENGELOLAAN KEUANGAN SERTA MOTIVASI TERHADAP KINERJA GURU DI SMAN 1 DAN SMAN 68 JAKARTA PUSAT
Authors: Sanadi Hadijah
Published: March 2020

This study aims to understand accountability and improve financial management as well as partial and simultaneous motivation for teacher performance in SMAN 1 dan SMAN 68 Jakarta.

The research approach is a quantitative and associative quantitative approach. Data obtained using a questionnaire. The population is 82 teachers of SMAN 1 and SMAN 68, Central Jakarta, using saturated sample techniques. Data analysis technique is statistical analysis of multiple linear regression.

The results of the study, partially the accountability variable has a positive effect on teacher performance. Transparency variable does not significantly influence teacher performance. The motivation variable partially has a significant effect on performance. Simultaneously the accountability, transparency and motivation variables significantly influence teacher performance. The ability of accountability, transparency, and motivation to explain changes in teacher performance is 58.4%. Among the three variables that most dominant influence teacher performance is motivation, thus motivation is very helpful for teachers in improving their performance.
The Effect of Peer Review on Students’ Motivation and Writing Ability
Authors: Susanto Susanto , Hidayati Meiliana
Published: March 2020

The objective of this research was aimed to investigate the effect of peer review on students’ motivation and ability in writing recount text.  The method of the research was a quasi-experimental design with a control and experimental group and a post-test only. The population of this research was the entire eight grade students of SMPN 1 Tanggunggunung. The cluster random sampling was used in the sampling technique. There were two classes of eight grade students as the sample of this research. They were VIII D that consists of 32 students as the control class and VIII G that consists of 30 students as the experimental class. Tests and questionnaires were the instruments of this research. The data collected from the tests were analyzed by using independent sample t-test and MANOVA through SPSS.  Results show that the independent sample t-test was 0.001 for motivation and 0.000 for the writing ability. Moreover, the result of the MANOVA test was 0.000. The results were consulted to the score of the significant value generated Sig. (P-value) < α = 0.05. Thus, Ho was rejected and Ha was accepted. In other words, the result of the study revealed that peer review gave a significant effect on the students’ motivation and ability in writing recount text. It can be concluded that there is a significant effect on the students’ writing motivation and writing ability who taught using peer review.
Exploring Perception of EFL Teachers towards Use of Media in Teaching English
Authors: Madayani Nany Soengkono , Muhassin Muhassin
Published: March 2020

This Research is against the backdrop of demand in mastering English. EFL teacher becomes one of the main important parts of teaching-learning English to handle a certain role in maximal the students’ achievement. The students’ achievement here means not only someone that has a lot of knowledge and high value but also someone that can give a positive contribution to other people. Because of that, the teachers have a big responsibility to facilitate students in learning. One of the facilitation of teaching-learning that has to be prepared by teachers is media. This study aims to investigate the teachers’ perceptions of ELT media. This study is classified into three main dimensions of perception proposed by Vernon (1987) namely understanding, outlook and action. By conducting a survey study, the researcher collected, analyzed, elaborated and eventually drew conclusions dealing with the teachers’ perceptions of ELT media. The main data of this study were collected with an interview and a questionnaire, which was distributed to 29 English teachers in the city of Tulungagung. The findings showed that Media is able to be a benefit for both teachers and students, be applicable to every class. To select criteria of Media is based on Media Mastery or flexibility due to different reference and less facility. Besides that, The teachers have positive responses towards the two of the dimensions, understanding, and view. The teachers, however, do not show positive responses toward the action. However, in general, the English teachers’ perceptions of ELT media in this study were categorized as a good perception. In other words, all the teachers have a positive perception of ELT media.
Mittelhochdeutsche Erzählverfahren und theologisches Wissen
Authors: Benz Maximilian , Reuvekamp Silvia
Published: February 2020

The question of the cultural conditions of narrations as a paradigm of historical narratology corresponds to one of the main interests of medieval literary studies: how is literature anchored in its extra-literary fields of reference? However, problems with the modeling of text and context have led to literary texts being understood in a more abstract way as forms of cultural practice, whereas the concrete contexts are neglected. As a result of this development, different cultural theoretical premises are encountered in the field of historical narratology that can hardly be related to one another. In this situation, our paper wants to highlight the importance of very specific text-context references, especially between theological knowledge and the narrative methods (Erzählverfahren) of Middle High German literature. Firstly, the autodiegesis in Rudolf von Ems’s Der guote Gêrhart is interpreted with respect to the question of intentionality, as discussed in Peter Lombard’s Book of Sentences. Secondly, ambiguities in the figuration and the narrative perspective in Ritter von Staufenberg are explained in the horizon of a literary demonology, as it is rooted in Augustinian theology and is developed by Walter Map and Gervasius of Tilbury. With this approach we want to argue that theological knowledge influenced the vernacular narrative not only on the level of content, but also in narrative methods.
The Burial of the Dead: Displacement and Agency in Hamlet
Authors: Laqué Stephan
Published: February 2020

Hamlet tends to be regarded as a largely immobile man of the mind who fails to move in the material world of action. But right from the start, Hamlet is a play about displacement: the displacement of a dead king who walks the earth, of a corpse dragged around and hidden in the castle, of soldiers dying for a piece of land that cannot even offer them burial, of the bones of the dead thrown out of their graves. Hamlet gradually comes to recognize the extent to which he has to become an agent of the displacement of others and the master of his own displacement until, in the graveyard-scene, he can proclaim that he is “Hamlet the Dane”.
„Names by themselves may be empty“: Pynchons sprechende Namen
Authors: Pöhlmann Sascha
Published: February 2020

This essay addresses the dialectics of names in Thomas Pynchon’s novels, arguing that they both use and undermine the stylistic element of the telling name in order to force readers into the very situation of interpretive ambiguity that the novels are concerned with on the plot level. The Pynchonian name therefore condenses and intensifies those processes of meaning-making and pattern recognition that characterize not just a reading of Pynchon’s novels but any reading.
Administrasi Pendidik dan Tenaga Kependidikan (PTK) 1
Authors: riska Seiski afrita
Published: March 2020

Administration of educators and education personnel constitutes a meaningful whole as a whole process of all educator activities which includes planning, organizing, briefing, reporting, supervition, financing, denfab using or utilizing available facilities, both personal, material and spiritual, to achieve educational goals in an effective and efficient. The process of administration is procerement which is the initial stage in the form of announcement of new information, the second is the placement ofor and education personnel. theposition to be accupied, the third orientation is the introduction of a new environment. This article was compiled or created based on references from many articles relating to the administration of education.
Synthesis, structures, thermal and magnetic properties of two bis(oxalato)cuprate(II) hybrid salts containing pyridinium derivative cations
Authors: Köferstein Roberto
Published: February 2020

Two bis(oxalato)cuprate(II) hybrid salts, (C5H7N2)2[Cu(C2O4)2]·2H2O (1) and(C7H11N2)2[Cu(C2O4)2]·5H2O (2) (C5H7N2 = 3-aminopyridinium; C7H11N2 = 2-amino-4,6-dimethylpyridinium) have been synthesized and characterized by elemental and thermalanalyses, IR and UV-Vis spectroscopies, single-crystal X-ray diffraction, and SQUID magnetometry. The polymeric anionic motifs in the two salts are significantly different. In 1, stacking of [Cu(C2O4)2]2- units through axial Cu···O contacts (2.890 Å) yields straight Cu(II) chains, with a prolate CuO6 octahedron around Cu(II) ions, formed by two cis-chelated oxalate anions and two axial O-atoms of neighboring [Cu(C2O4)2]2- units. By contrast, in 2,stacking of [Cu(C2O4)2]2- units occurs via bis-bidentate oxalate groups, yielding zigzag Cu(II) chains with a distorted CuO6 coordination sphere. Thermal studies confirmed the presence of solvent water molecules in both salts. Magnetic studies revealed weak antiferromagnetic and weak ferromagnetic interactions between Cu(II) ions in 1 and 2, respectively.
Explanation of Nikiforov-Uvarov method in quantum mechanics – with a view toward algebraic geometry
Authors: Kikuchi Ichio , Kikuchi Akihito
Published: March 2020

In this essay, we review the Nikiforov-Uvarov method which is used to solve Schro¨dinger equation. We shed light on the algorithm from the viewpoint of algebraic geometry so that we shall the ideas of the latter (such as the resolution of singularity, normalization, primary decomposition of ideal) are lurking behind the algorithm. Besides, we study the application of the introductory D-module theory in this sort of eigenvalue problem and we present an algorithm alternative to the Nikiforov-Uvarov method.
Population biology of Nile tilapia, Oreochromis niloticus in Lake Naivasha, Kenya
Authors: Waithaka Edna , Yongo Edwine , Outa Nicholas Otieno
Published: February 2020

The Nile tilapia, Oreochromis niloticus was introduced in Lake Naivasha to provide exploitable fisheries. It is one of the commercially important fish providing livelihoods to communities around the lake. However, its stocks in the lake have been declining due to intense fishing, ecological changes and effects of other exotic species. This study investigated on its population and biological parameters. Fish samples (1021) were caught monthly from January to December 2017 using gillnets of mesh-sizes 2-5 inches. A total of 1021 O. niloticus caught had overall sex ratio of 2.21:1.0 (male: female). Length of fish ranged from 9.0 to 40.0 cm TL and weighed between 20 and 1220 g. Length at first maturity (Lm50) was estimated at 28.0 cm TL for all sexes. The mean length and weight for all fish was 22.6 cm and 272.6 g. The slope b of length-weight relationship was 2.86 for all fish. The mean condition factor was 0.99, 1.04 and 1.01 for male, female and all fish, respectively. The asymptotic length (L∞) was 42 cm, growth coefficient (K) 0.21 year−1 and growth performance index (Ф) 2.57. The natural (M), fishing (F) and total mortality (Z) coefficients were estimated at 0.55, 0.26 and 0.80 year−1, respectively. Length at first capture (Lc50) was calculated at 19.38 cm. The optimum sustainable yield (E0.5), maximum sustainable yield (Emax) and maximum economic yield (E0.1) indices were 0.23, 0.35 and 0.26, respectively. This study has provided some insights into biology of O. niloticus and stock assessment relevant information to the fishery management.
6. ADMINISTRASI SARANA DAN PRASARANA PENDIDIKAN
Authors: asifa putri , Afriansyah Hade
Published: February 2020

In this article the author will explain the administration of facilities and infrastructure in the school environment. Facilities and infrastructure administration is one of the most important things in education. All activities in schools will require facilities and infrastructure, both directly and indirectly so that they will support the course of the learning process of education.Administration of facilities and infrastructure is very supportive of achieving educational goals. The positive and negative educational environment depends on maintaining the school facilities and infrastructure. Maintenance and management of infrastructure must be managed properly, but there are still some that have not been implemented optimally. Therefore, the author intends to make this article so that it can be used as a reference in managing educational facilities and infrastructure.
Administrasi Sarana dan Prasarana
Authors: Kristina Feby , Afriansyah Hade
Published: March 2020

This article is written with the aim of conveying informations to the reader, so that it can be used as a reference to increase readers knowledge , and can have an academic impact on the author. This article is expected to be able to hone the ability of writings. This article was written use literature review techniques. This article contains informations about the administration of facilities and infrastructure. Availability of good facilities and infrastructure can support the success of an organization, in this context Facilities and Infrastructure have the potential to support the smooth process of activities as planned,
6. Administrasi Sarana dan Prasarana
Authors: Mandayanti Ditri Wily , Afriansyah Hade
Published: February 2020

The purpose of writing this article is to find out how important facilities and infrastructure greatly affect the goals and processes in education. School infrastructure is an important component in the education system. Sometimes people even assess the quality of education in a school by looking at infrastructure. Although it is not entirely true, it cannot be denied that the success of the Teaching and Learning Process is more or less influenced by the condition of pre-educational facilities available. Administrative activities in the field of educational facilities and infrastructure include; goods procurement planning, partner prequalification, goods procurement, storage, inventory, distribution, maintenance, rehabilitation, elimination and removal and control. The role of teachers in the administration of school infrastructure facilities: involved in planning the procurement of teaching aids, involved in the use and maintenance of teaching aids used by teachers, supervision in the use of practical tools by students.
artikel administrasi sarana dan prasarana
Authors: Desrika Uci , Afriansyah Hade
Published: March 2020

This article discusses the administration of facilities and infrastructure. The administration of educational facilities and infrastructure is very supportive of the achievement of an objective of education, as a personal education, we are required to master and understand the administration of facilities and infrastructure, to improve effective and efficient work power and be able to appreciate the work ethics of fellow personal education, so that harmony, comfort that can lead to pride and a sense of belonging from both the school community and the community if the educational environment will be positive or negative depends on maintaining the administration of the facilities and infrastructure itself. Means are tools that are used directly to achieve goals, such as hard spaces, book, blackboards and others. While infrastructure is an indirect tool used to achieve goals in education. Thus it can be concluded that the administration of facilities and infrastructure are all components that directly or indirectly support the course of the education process to achieve the goals in education itself. The process of administration of facilities and infrastructure is planning, procurement, inventory, distribution, utilization and maintenance, elimination and supervision. In the administration of facilities and infrastructure teachers have an important role. The role of teachers in the administration of facilities and infrastructure starts with the planning, utilization, maintenance, and supervision of the uses of facilities and infrastructure. The role of the teacher in the administration of facilities and infrastructure include: involved in planning the procurement of teachers aids, involved in the use and maintenance of teaching aids used by teachers, supervision in the use of practical tools by students.
Negshell casting: 3D-printed structured and sacrificial cores for soft robot fabrication
Authors: Preechayasomboon Pornthep , Rombokas Eric
Published: February 2020

Soft robot fabrication by casting liquid elastomer often requires multiple steps of casting or skillful manual labor. We present a novel soft robotic fabrication technique: negshell casting (negative-space eggshell casting), that reduces the steps required for fabrication by introducing 3D-printed thin-walled cores for use in casting that are meant to be left in place instead of being removed later in the fabrication process. Negshell casting consists of two types of cores: sacrificial cores (negshell cores) and structural cores. Negshell cores are designed to be broken into small pieces that have little effect on the mechanical structure of the soft robot, and can be used for creating fluidic channels and bellows for actuation. Structural cores, on the other hand, are not meant to be broken, and are for increasing the stiffness of soft robotic structures, such as endoskeletons. We describe the design and fabrication concepts for both types of cores and report the mechanical characterization of the cores embedded in silicone rubber specimens. We also present an example use-case of negshell casting for a single joint soft robotic finger, along with an experiment to demonstrate how negshell casting concepts can aid in force transmission. Finally, we present real-world usage of negshell casting in a 6 degree-of-freedom three-finger soft robotic gripper, and a demonstration of the gripper in a robotic pick-and-place task.
Solar One
Authors: Caballero Alberto
Published: February 2020

In this paper it is presented the concept and design of a new type of spacecraft that could be used to make the first manned interstellar travel. Solar one would integrate three near-term technologies, namely: the US Navy CFR fusion reactor, a larger version of NASA’s Sunjammer light sail, and an array of DE-STAR laser systems. A system of Fresnel lenses and flexible mirrors to propel the sail with sunlight is suggested as an alternative to this array. With a mile-long light sail, Solar One could reach an average of 22% the speed of light, arriving to the closest potentially habitable exoplanet in less than 19 years with the help of a Bussard scoop. Key challenges are reducing the weight of continuous-wave lasers and compact fusion reactors as well as achieving cryo-sleep and artificial gravity.
Introduction to the special edition on expert evidence
Authors: Chin Jason , Goss Caitlin
Published: March 2020

We are very pleased to introduce this special issue of The University of Queensland Law Journal on expert evidence. As many readers will be aware, expert evidence remains a contentious issue both in Australia and abroad. Questions have been raised, for instance, about the reliability of many traditional fields of expert evidence, biases experts may carry with them into court, and the risk of trials transforming into battles of experts. We hope that this special issue contributes to the ongoing discussion.
The Role of Prior Event Retrieval in Encoding Changed Event Features
Authors: Hermann Mary , Alexander Timothy , Wahlheim Christopher N. , Zacks Jeffrey M.
Published: March 2020

When people experience everyday activities, their comprehension can be shaped by expectations that derive from similar recent experiences, which can affect the encoding of the new experience into memory. When a new experience includes changes—such as a driving route being blocked by construction—this can lead to interference in subsequent memory. However, theories based on prediction-error-driven learning propose that unpredicted changes can lead to facilitation rather than interference. One potential mechanism of effective encoding of event changes is the retrieval of related features from previous events. Another such mechanism is the generation of a prediction error when a predicted feature is contradicted. In two experiments, we tested for effects of these two mechanisms on memory for changed features in movies of everyday activities. Participants viewed movies of an actor performing everyday activities across two fictitious days. Some event features changed across the days, and some features violated viewers’ predictions. Retrieval of previous event features while viewing the second movie was associated with better subsequent memory, providing evidence for the retrieval mechanism. Contrary to our hypotheses, there was not support for the error mechanism: Prediction error was not associated with better memory when it was observed correlationally (Experiment 1) or directly manipulated (Experiment 2). These results support a key role for episodic retrieval in the encoding of new events. They also indicate boundary conditions on the role of prediction errors in driving new learning. Both findings have clear implications for theories of event memory.
Autistic People Do Enhance Their Selves
Authors: Gernsbacher Morton Ann , Stevenson Jennifer L. , Dern Sebastian
Published: March 2020

We investigated whether autistic people are less prone to self-enhance (i.e., portray themselves in socially desirable ways). Autistic (N = 130) and non-autistic (N = 130) participants first responded to social desirability items using the standard instruction to endorse each item as true or false about themselves. Then, all participants read an explanation of what social desirability items measure before responding again to the social desirability items. Self-enhancement was operationalized as participantsendorsing more social desirability items before learning the explanation than after. All participants endorsed significantly more social desirability items before learning the explanation than after, F/subjects(1,258) = 57.73, p < .001, η2p = .183; F/items(1,34) = 43.04, p < .001, η2p = .559). However, autistic and non-autistic participants did not significantly differ in how many items they endorsed, either before or after reading the explanation, indicating that autistic people are as susceptible to social desirability and self-enhancement as non-autistic people are. Our results challenge the claim that autistic people are immune to reputation management.
What is Culture? Systems of People, Places, and Practices
Authors: Causadias José M.
Published: March 2020

Culture is a fuzzy concept without fixed boundaries, meaning different things according to situations. To address this issue, I introduce a p-model to understand culture as a system of people, places, and practices, for a purpose such as enacting, justifying, or resisting power. People refers to population dynamics, social relations, and culture in groups. Places refers to ecological dynamics, institutional influences, and culture in contexts. Practices refers to participatory dynamics, community engagement, and culture in action. Power refers to forcing others into compliance (power-over people), controlling access to spaces (power-in places), and behaving as desired (power-to practice). I use racism to illustrate the p-model and suggest applications in theory, research, and practice in developmental sciences.
Optional Stopping in a Heteroscedastic World
Authors: tickle hannah , Tsetsos Konstantinos , Speekenbrink Maarten , Summerfield Christopher
Published: March 2020

When making decisions, animals must trade off the benefits of information harvesting against the opportunity cost of prolonged deliberation. Deciding when to stop accumulating information and commit to a choice is challenging in natural environments, where the reliability of decision-relevant information may itself vary unpredictably over time (variable variance or “heteroscedasticity”). We asked humans to perform a categorisation task in which discrete, continuously-valued samples (oriented gratings) arrived in series until the observer made a choice. Human behaviour was best described by a model that adaptively weighted sensory signals by their inverse prediction error, and integrated the resulting quantities to a collapsing decision threshold. This model approximated the output of a Bayesian model that computed the full posterior probability of a correct response, and successfully predicted adaptive weighting of decision information in neural signals. Adaptive weighting of decision information may have evolved to promote optional stopping in hetereoscedastic natural environments.
Actualización del manejo de infecciones de las vías urinarias no complicadas
Authors: Solano Mora Andrea , Solano Castillo Andrés , Ramírez Vargas Xinia
Published: March 2020

Las infecciones del tracto urinario está entre las enfermedades infecciosas más frecuentes y representan la primera causa de consulta médica en mujeres en edad reproductiva. Dentro de los factores de riesgo para el desarrollo de esta enfermedad se encuentran las relaciones sexuales, malos hábitos de micción, uso de espermicidas, estreñimiento, factores genéticos y disminución de estrógenos. En el diagnóstico la clínica siempre debe predominar, el examen general de orina y el urocultivo deben usarse de manera racional; existen biomarcadores como nuevos métodos para el diagnóstico que están siendo implementados. En cuanto al tratamiento distintos cuadros clínicos requieren distintas duraciones de terapia antimicrobiana, tanto el exceso de días como su falta deben evitarse. Se han investigado diversos métodos para prevenir las infecciones urinarias recurrentes como el uso de vacunas, cranberry, probióticos y terapia estrogénica.
Esofagitis eosinofílica
Authors: Umaña Bermúdez Carlos Andrés , Rodríguez Nájera Geovanna Fabiola , Camacho Barquero Fabián Alberto
Published: March 2020

La esofagitis eosinofílica se caracteriza por la infiltración de eosinófilos en el esófago y es una causa potencial de disfagia e impactación alimentaria que en general afecta a niños y adultos jóvenes predominantemente de raza blanca. Representa una reacción local frente a alérgenos a los que el paciente muestra sensibilización previa, adquirida por vía digestiva, inhalatoria o incluso epicutánea. Los síntomas principales de la esofagitis eosinofílica son disfagia e impactaciones de alimento en el esófago por alteraciones endoscópicas y trastornos motores. Se diagnostica con una biopsia esofágica con más de 15 eosinófilos por campo de mayor aumento, y la exclusión de enfermedad de reflujo gastroesofágico. Los tratamientos actuales incluyen medidas dietéticas basadas en la eliminación de la exposición de alérgenos alimentarios y uso de corticoesteroides tópicos.
Historia de los anticoagulantes y su uso clínico en el presente
Authors: Molina Castaño Daniel , Campos Quesada Marilyn , Núñez Guerrero Alberto
Published: March 2020

Los anticoagulantes orales clásicos fueron de uso exclusivo por más de 65 años, es conocida la eficacia con la que cuentan para tratar eventos tromboembólicos y sus complicaciones, sumado a esto cuentan con otras ventajas, como el bajo costo económico y la disponibilidad de antídotos, sin embargo, cuentan con una amplia variedad de limitaciones y efectos secundarios, debido a esto y la prevalencia de enfermedades tromboembólicas en la creciente población geriátrica se desarrollan los nuevos anticoagulantes orales (NACOs), creados para reforzar las limitaciones y disminuir los efectos adversos que presentaban los anticoagulantes clásicos, estos fármacos alcanzaron su mayor auge con la aprobación de  antídotos como el idarucizumab un anticuerpo monoclonal que inhibe el dabigatran y el andexanet alfa un fármaco con potencial de revertir los efectos de los inhibidores directos e indirectos del factor Xa.
Leptospirosis y enfermedad de Weil
Authors: Carranza Zamora Andrés Josué , Chang Fonseca Dylan , Gutierrez López Yaileen
Published: March 2020

La cardiomiopatía periparto es una cardiomiopatía con disfunción sistólica que se presenta usualmente al final del embarazo y en las primeras semanas del periodo postparto. Los factores de riesgo incluyen etnia afrodescendiente, hipertensión gestacional, preeclampsia, edad materna mayor a 30 años y gestación múltiple. Se han dilucidado varios mecanismos fisiopatológicos implicados, tales como un aumento de la prolactina, una disminución en factores transcripcionales antioxidantes como el STAT3 y un aumento de proteínas producidas en la placenta como el sFlt-1, lo que en conjunto produce disfunción endotelial y apoptosis de los cardiomiocitos. Es un diagnóstico de exclusión, por lo que en una mujer con clínica de insuficiencia cardiaca en el periodo periparto se debe descartar otras causas como la cardiomiopatía dilatada o valvular preexistente, infarto agudo del miocardio y tromboembolismo pulmonar. Actualmente el tratamiento se basa en el manejo básico de la insuficiencia cardiaca, además de soporte hemodinámico en caso de ser necesario.