bluuebunny/crossref_metadata_2025 huggingface dataset:
Risk Estimation of Anterior Cruciate Ligament (ACL) Injury in East Java Puslatda Pencak Silat Athletes
Authors: Dzakiya Farhan Nur Ahmad , Tinduh Damayanti , Utomo Dwikora Novembri
Published: March 2021

Background: Dr. Soetomo General Hospital Sports Clinic Surabaya reported that the incidence of knee injuries was rather high, particularly in martial art athletes. Injuries in pencak silat athletes are dominated by Anterior Cruciate Ligament (ACL) injuries (16.7%) Several risk factors are thought to influence ones’ propensity for these injuries.Aim: To analyze risk estimation between intrinsic and extrinsic factors in the occurrence of ACL injury in East Java Puslatda Pencak Silat Athletes.Material and Methods: This study was an analytic observational study with a case control design involving 18 pencak silat athletes from East Java Regional Training Centre. Age, gender, body mass index, previous ACL injury, range of motion, laxity, and flat foot were included as intrinsic factors; while duration of each training, training frequency, and sparring frequency were included as extrinsic factors. Data analysis was done using the Chi-Square Test. Odds Ratio was calculated through cross-tabulation.Results: It was found that 3 of 18 athletes (16.7%) had ACL injuries. None of the intrinsic and extrinsic factors significantly affected the incidence of ACL injury (p> 0.05). However, the odds ratio calculation showed that adult athletes older than 25 years-old (OR = 1.4), male (OR = 1.667), obese (OR = 1.4), with laxity (OR = 2.5), and flat foot (OR = 1) had higher risk in having ACL injury.Conclusion: Adult athletes, male, obese, with laxity, and flat foot had a higher risk of ACL injury.
Contents Practicality of the Popular Ethnobotany Scientific Book of Gliricidia maculata in the Tamiang Hill Forest Area, Tanah Laut Regency
Authors: Putra Naufal Hafidh Mahdi Sujarwo , Dharmono Dharmono , Mahrudin Mahrudin
Published: March 2021

The teaching materials need to see the reader's ability for how to understand the intent, to know the feasibility, and also for improvement practical content. This study wants to describe the contents practicality of popular scientific book on the ethnobotany’s Gliricidia maculata as supporting material for ethnobotany courses in biology education, FKIP ULM Banjarmasin. Ethnobotany popular scientific book refers to Tessmer Formative Evaluation with the steps on content practicality using individual tests (one to one) and also the content practicality assessment instrument too. The research subjects were 3 students of Biology Education FKIP ULM Banjarmasin who had passed the ethnobotany course and for the average result has 3.6 with very good criteria. Teaching materials that accordance with student characteristics allow more contextual learning experience, complete learning experience, developed according to the student conditions and implementation based on indicator as guidance.Abstrak Bahan ajar yang dikembangkan perlu melihat kemampuan pembaca dalam memahami maksud yang ingin disampaikan, mengetahui keterlaksanaan dan kemudahan penggunaan bahan ajar untuk penyempurnaan melalui suatu kepraktisan isi. Penelitian ini bertujuan untuk mendeskripsikan kepraktisan isi buku ilmiah populer etnobotani tumbuhan Gliricidia maculata sebagai materi penunjang mata kuliah etnobotani di pendidikan biologi FKIP ULM Banjarmasin. Buku ilmiah populer etnobotani sebagai bahan ajar dikembangkan melalui Evaluasi Formatif Tessmer dengan tahap yang dilakukan pada kepraktisan isi menggunakan uji perorangan (one to one) serta instrumen penilaian kepraktisan isi juga mengacu pada Tessmer. Subjek penelitian merupakan 3 orang mahasiswa Pendidikan Biologi FKIP ULM Banjarmasin yang dinyatakan telah lulus mata kuliah etnobotani. Hasil rata-rata kepraktisan isi buku ilmiah populer memiliki nilai 3,6 dengan kriteria sangat baik. Bahan ajar yang sesuai dengan kondisi mahasiswa dapat membuat pengalaman belajar yang semakin kontekstual, pengalaman belajar yang utuh, serta dikembangkan sesuai kebutuhan mahasiswa dan keterlaksanaan ditentukan berdasarkan indikator yang dijadikan pedoman.
The Validity Handout about Proboscis Monkey (Nasalis larvatus) on Curiak Island as an Enrichment Material for the Concept of Biodiversity in High School
Authors: Yulianti Rema , Hardiansyah Hardiansyah , Mahrudin Mahrudin , Rezeki Amalia
Published: March 2021

Teaching materials in learning activities have an important meaning so that the learning process is easier and more effective. Local potential can be used as a source of learning to look at phenomena, events, and problems in an area or what is also called contextual learning. The handout is one of the teaching materials that is concise and makes it easier for students to understand learning. The research method used was to analyze the results of research on proboscis monkey (Nasalis larvatus) on Curiak Island by Zainudin and Rezeki, to be used as material for the development of proboscis monkey (Nasalis larvatus) handouts on Curiak Island with the Tessmer development model which was limited to the expert stage review (Expert Test). The validation test was carried out with experts consisting of 3 (three) validators with an overall validity value of 90.6% (very valid and fit for use without revision). Its validity is shown by the average assessment on the feasibility aspect of the content of 85.07% (very valid), the assessment of the feasibility of serving 91.25% (very valid), and the assessment of the language aspect of 87.14% (very valid).Abstrak Bahan ajar pada kegiatan pembelajaran memiliki arti penting, agar proses pembelajaran lebih mudah dan lebih efektif. Potensi lokal dapat dijadikan sumber belajar melihat pada fenomena, peristiwa, maupun permasalahan pada suatu daerah yang disebut dengan pembelajaran kontekstual. Handout merupakan salah satu bahan ajar yang ringkas dan memudahkan peserta didik memahami pembelajaran. Metode penelitian yang digunakan adalah menganalisis hasil penelitian tentang bekantan (Nasalis larvatus) di Pulau Curiak oleh Zainuddin dan Rezeki, untuk dijadikan bahan pengembangan handout bekantan (Nasalis larvatus) di Pulau Curiak dengan model pengembangan Tessmer yang dibatasi hanya pada tahap expert review (Uji Pakar). Uji validasi dilakukan olehn para ahli yang terdiri dari 3 (tiga) validator dengan nilai validitas keseluruhan yaitu 90,6% (sangat valid dan layak digunakan tanpa revisi). Kevalidan ditunjukkan oleh rata-rata penilaian pada aspek kelayakan isi 85,07% (sangat valid), penilaian aspek kelayakan penyajian 91,25% (sangat valid), dan penilaian aspek bahasa 87,14% (sangat valid).
Review Of The Artificial Neural Network Application In Prediciting Blast Vibration
Authors: Maulana Yuga , Maulana Yuga , Simangunsong Ganda Marihot , Karian Tri
Published: March 2021

The blasting method is one of the best hard rock excavation methods in mining activities. This method has negative impacts, one of which is the vibrations generated by the residual energy of the explosion. This impact will affect the environment around the blasting area, both slope stability, tunnels, infrastructure, and human settlements if it is close to the blasting site. Therefore, it needs initial planning and prediction to anticipate the blasting vibration that occurs. In general, the blast vibration can be predicted using the scale distance method which uses two parameters, namely the maximum amount of explosive material per time delay and the distance of measurement from the location of the explosion. This method has been widely researched to produce several empirical equations from each explosion location studied. However, as technology develops, several studies have tried to use artificial intelligence technology, one of which is the artificial neural network algorithm as a new approach for predicting detonation vibrations. In this method, the development of the parameters used in predicting the weighting of the most influential parameters from the formation of detonation vibrations can be carried out. This study will review several studies related to the use of artificial neural networks in predicting blasting vibrations in the studies that have been carried out and also compare with prediction methods using several empirical equations.
Sub-Saharan Africa: Conflicts and Development
Authors: Lebedeva E.
Published: March 2021

Political instability is growing in sub-Saharan Africa. The situation has left the Sahelian countries increasingly vulnerable to insecurity resulting from armed conflicts, terrorist activities, illicit trafficking and related organized crime, ecological crisis, «resource» wars and the like. These new global and regional challenges superimposed on traditional factors, provoking conflicts (social polarization, widespread corruption, coupled with the inability of the involved governments to deliver basic services, weak administration and other). At the same time, chronic political instability is a direct result of the lack of institutionalized political dialogue, of national consensus on strategy of national security and, also, because of the continuing unwillingness of the ruling elites to engage in the development of peripheral areas. Crises in Mali and Nigeria have clearly demonstrated the «fragility» of sub-Saharan states in the face of these threats. The scale of problems in the Sahel is so great that the United Nations has proposed a new conceptual and organizational approach to their solution. Nowhere is the development–security nexus more evident than in the Sahel. Major emphasis is placed on integrated and coordinated implementation of measures in the field of security and development in the region and regional and interregional cooperation among Sahelian, West African and Maghreb states. The UN declares a top priority of “partner peacekeeping", which is based on the cooperation of the UN as the main actor with international regional organizations – the EU, AU, ECOWAS, financial institutions and donor countries as well as other bilateral partners. Currently, ensuring a coherent and mutually supportive peacekeeping of the UN and the AU becomes most urgent issue for the organizations, since the relations between them are characterized by mistrust and tension.
Deep Learning versus Spectral Techniques for Frequency Estimation of Single-Tones: Reduced Complexity for SDR and IoT Sensor Communications
Authors: Almayyali Hind , Hussain Zahir M.
Published: March 2021

Despite the increasing role of machine learning in various fields, very few works considered artificial intelligence for frequency estimation (FE). This work presents a comprehensive analysis of deep-learning (DL) approach for frequency estimation of single-tones. It is shown that DL network with two layers having a few nodes can estimate frequency more accurately than well-known classical techniques. The study is comprehensive, filling gaps of existing works, where it analyzes error under different signal-to-noise ratios, numbers of nodes, and numbers of input samples; also, under missing SNR information. It is found that DL-based FE is not significantly affected by SNR bias or number of nodes. DL-based approach can work properly using minimal number of input nodes N at which classical methods fail. It is possible for DL to use as little as two layers with two or three nodes each, with complexity of O{N} versus O{Nlog2 (N)} for DFT-based FE, noting that less N is required for DL. Hence, DL can significantly reduce FE complexity, memory, cost, and power consumption, making DL-based FE attractive for resource-limited systems like some IoT sensor applications. Also, reduced complexity opens the door for hardware-efficient implementation using short word-length (SWL) or time-efficient software-defined radio (SDR) communications.
Optimization of the ZnO ALD Coating of a Photonic Microsphere-Based Temperature Sensor
Authors: Listewnik Paulina , Bechelany Mikhael , Szczerska Małgorzata
Published: March 2021

This study presents of the microsphere-based fiber-optic sensor with the ZnO ALD coating thickness of 100 nm and 200 nm for temperature measurements. Metrological properties of the sensor were investigated over the temperature range of 100°C to 300°C, with a 10°C step. The interferometric signal is used to control whether the microstructure is intact. Spectrum shift of a reflected signal is used to conclude changes in measured parameter for the sensor with a 100 nm coating, while the reflected signal intensity is an indicator during measurements executed by a sensor with a 200 nm coating. With changing temperature, the peak position or intensity of a reflected signal also changes. The R2 coefficient of the presented sensors indicates a linear fit of over 0.99 to the obtained data. The sensitivity of the sensors, investigated in this study, equals 103.5 nW/°C and 0.019 nm/°C for ZnO thickness of 200 nm and 100 nm, respectively.
How E-Learning Affects Students' Mental Health During Covid-19 Pandemic: An Empirical Study
Authors: Fatimah Siti , Mahmudah Umi
Published: March 2021

This study aimed to determine the impact of e-learning on the Indonesian students’ mental health during the COVID-19 pandemic. The subjects in this study were 210 respondents, namely students at the junior high school, senior high school, and university levels. The instrument used was both closed and open questionnaire sheets. The data analysis technique was multiple linear regressions using the Ordinary Least Square (OLS) method. The analysis shows that: 1) e-learning has a positive and significant effect on mental health; 2) age has a positive but is not statistically significant effect on mental health; and 3) gender has a negative but is not statistically significant effect on mental health.
Penggunaan Perangkat Lunak ATP untuk Mahasiswa Calon Guru SD Memahami Profil Perkembangan Siswa
Authors: Riyadi Arie Rakhmat , Syaripudin Tatang , Kurniasih Kurniasih , Shiera N. D. , Magistra Ari A.
Published: March 2021

Memahami perkembangan anak merupakan hal penting bagi seorang calon guru. Tujuan penelitian ini mengetahui dampak penggunaan perangkat lunak ATP (Analisis Tugas Perkembangan) terhadap pemahaman dan keterampilan mahasiswa calon guru SD dalam mendeskripsikan profil capaian tugas perkembangan siswa. Metode penelitian ini ex post facto dengan pendekatan kuantitatif. Subjek penelitian adalah mahasiswa calon guru SD berjumlah 288 orang di sebuah universitas negeri pendidikan terkemuka di Indonesia. Alat pengumpul data menggunakan kuisioner memanfaatkan google form. Analisis data berbantuan SPSS. Hasil penelitian menunjukkan penggunaan ATP meningkatkan pemahaman dan keterampilan mahasiswa mendeskripsikan profil capaian tingkatan dan aspek perkembangan siswa. Simpulan penelitian menegaskan bahwa ATP memfasilitasi pencapaian tujuan perkuliahan Perkembangan Peserta Didik di SD, sehingga melibatkan ATP direkomendasikan pada mata kuliah sejenis.
The Influence of Quantum Learning Models on Scientific Attitude
Authors: Nugraha Widdy Sukma , Evianty Evin Dwi
Published: March 2021

The problem of this research was the scientific attitude that was consist of five dimensions, such as curiosity attitude, respect on the data, perseverance, cooperation with others, and sensitive on the environment of fifth grade. The objective of this research was to know the influence of quantum learning model on the students’ scientific attitude of fifth grade in science subject. The method used quasi experimental with Nonequivalent Control Group design. The technique of collecting sample used saturation sampling. VA class as an experimental group that consist of 20 students. And VB class as control group that consist of 20 students. The instruments used questionnaire and observation. The technique of analysis in this research used t-test. It was aimed to find out the influence of quantum learning model on the students’ scientific attitude. The result of this research showed that quantum learning model was significant influential on the students’ scientific attitude of fifth grade in the material of panas dan perpindahannya. It took from the result of calculating data that showed sig. (2-tailed) 0.011 < 0.05. Thus, it showed that Ha was accepted. Therefore, it could be concluded that using quantum learning model can influence the students’ scientific attitude in science subject.
Speech Acts in Wedding Ceremony Wurung Jue of Dayak Ma'anyan
Authors: Perdana Indra , Emzir Emzir
Published: March 2021

Wurung Jue is a series of events Process Dayak Customary Marriages Ma'anyan and Lawangan. Wurung jue Jue or bird is a symbol of faithful to their spouse. This research is a qualitative research. The main instrument in this study is the researchers themselves. Data collected over take the form of words or pictures instead of numbers. "The research data were retrieved through data collection techniques such as observation, interviews and documentation, namely the recording and record ripple used in ceremonies pernikahan.Hasil of this study were 1 ) ripple Ma'anyan Dayak is an old literary work because tumet a poem performed at the wedding customs Ma'anyan tribes commonly called Wurung Jue, 2) acts of speech commonly used in ripple namely locutions and illocutionary speech acts. Riak also has characteristics in common with each stanza rhyme that these ripples consist of four lines with end rhymes a-b-a-b. Each array consists of four words or eight with the provisions of the first two lines are always in the form of figurative or sampiran, while the content or the exact meaning contained in the third and four lines.
TATA GUNA LAHAN DALAM PEMBANGUNAN PERUMAHAN
Authors: Saefudin Arief
Published: March 2021

Dalam pembangunan perumahan khususnya dalam skala kuantitas maksimal, kitasering dihadapi oleh berbagai masalah, yang salah satunya adalah perubahan ekosistemdari yang alamiah menjadi kondisi yang baru/ tidak alamiah. Selain itu juga terjadiperubahan pada indek konservasi lahan, yaitu suatu koefisien yang menunjukkankemampuan suatu wilayah atau lahan untuk menyerap air hujan yang jatuh ke permukaantanah menjadi imbuhan air tanah.Permasalahan ini kadangkala terjadi akibat adanya upaya mengambil jalan pintasuntuk menangkap peluang pasar yang tidak diikuti oleh kesadaran akan bahaya perubahantataguna lahan dan tidak siapnya aspek pengelolaan kawasan yang ada. Perubahan iniditandai dengan banjir pada musim hujan serta terganggunya kelestarian air tanah sebagaiakibat dari tataguna lahan yang tidak terkendali.Pengendalian indek konservasi lahan dalam pembangunan perumahan, tentunyaperlu direncanakan sedemikian rupa dan secara seksama, agar keberadaannya tidakmerubah ekosistem secara radikal dari kondisi alami.
TEMPAT PENGOLAHAN SAMPAH TERPADU DENGAN MENGGUNAKAN SISTEM EATAD (Enhanched Autogenous Thermopilic Aerobic Digestion)
Authors: S Humairoh , Sr Daryati , Neolaka Amos
Published: March 2021

Sistem EATAD merupakan sistem pengolahan sampah yang dapat mengolahbahan baku sampah organik sebesar 300 m3/hari dicampur dengan material kertassebanyak 75 m3/hari yang dilumat, lalu dicerna dan diurai menjadi produk pupuk IBRSolid dan IBR Liquid oleh bakteri Lactobacillus Bulgaricus dan StreptococcusThermophyllus. Pengolahan selama 5 hari, dengan dimensi pengolahan terdiri dari : bakpenampung (16,5 m x 5,5 m x 4 m), Hummer Mill, Electromagnetic Shearator, AirShearator, bak penampung II (16,5 m x 5,5 m x 3 m), 25 buah Digester Tank kapasitas27,21 m3, Filter Press, oven, mesin penggiling, bak pengendap (12 m x 4 m x 3 m),tangki pemurnian (12 m x 4 m x 3 m), dan mesin pengemas produk.Selama ini pupuk hasil pengolahan lain tidak memiliki standar mutu, sedangkan sistemEATAD ini menghasilkan produk pupuk yang memiliki standard mutu, sehinggaperencanaan menyimpulkan bahwa pengolahan sampah dengan sistem EATAD dapatdilaksanakan
KUAT LENTUR LEMBARAN SERAT SEMEN YANG MENGGUNAKAN JERAMI PADI
Authors: Hanum Cut Farida , Septiandini Erna , Neolaka Amos
Published: March 2021

Tujuan penelitian ini adalah untuk mengetahui pengaruh serat jerami terhadapkekuatan lentur dari lembaran serat semen. Metode penelitian inimerupakan metode eksperimen dengan empat jenis perlakuan yaitu, kelompok A 9% denganpenambahan serat jerami, kelompok B dengan penambahan 10% serat jerami, kelompok C dengan 11%penambahan serat jerami dan grup D dengan penambahan serat jerami 12%. Ada 15lembaran serat semen untuk setiap perawatan; 5 untuk kekuatan lenturpercobaan, 5 untuk percobaan penyerapan air dan 5 lembar serat semenuntuk percobaan berat volume.Dari kelompok Reseach A menunjukkan rata-rata kekuatan lentur81,82 kg / cm2, daya serap air 9,66% dan berat volume 2,07gr / cm3, Grup B menunjukkan rata-rata kekuatan lentur memiliki 83,72 kg / cm2,penyerapan air 10,95% dan berat volume 2,02 gr / cm3, Grup Cmenunjukkan rata-rata kekuatan lentur memiliki 77,24 kg/cm2, penyerapan air11,86% dan berat volume 1,96 gr / cm3, Grup D menunjukkan rata-ratakekuatan lentur memiliki 71,95 kg / cm2, daya serap air 12,25% danberat volume memiliki 1,45 gr / cm3. Analisis Varians satu ekor dengan ï¡ = 0,01menunjukkan Fhitung = 0,0042 lebih rendah dari Ftabel = 6,99. Jadi tidak adaperbedaan signifikan dalam kekuatan lentur lembar serat semen karenapenambahan serat jerami 9%, 10%, 11% dan 12%.
PENGARUH CAMPURAN LIMBAH LUMPUR SEDIMENTASI PAM TERHADAP DAYA DUKUNG TANAH EKSPANSIF DENGAN KADAR YANG BERVARIASI
Authors: Siregar Ali Aman , Bachtiar Gina , Hamidi Hendri Dunant
Published: March 2021

Penelitian ini dilakukan untuk mengetahui tentang pengaruh campuran limbahlumpur sedimentasi PAM dengan kadar yang bervariasi terhadap daya dukungtanah ekspansif. Hasil penelitian ini diduga nilai optimum daya dukung tanahekspansif yang dicampur limbah lumpur sedimentasi PAM lebih tinggi dari tanahekspansif asli (kadar lumpur 0%).Penelitian ini dilaksanakan di Laboratorium Mekanika Tanah, jurusanTeknik Sipil, Universitas Negeri Jakarta, dilaksanakan pada bulan Desember2004 sampai dengan Januari 2005. Metode penelitian yang digunakan adalahmetode eksperimen di laboratorium, sebagai kelompok uji adalah campurantanah + lumpur sedimentasi PAM yang mencapai nilai kuat tekan optimumdengan kelompok pembanding adalah nilai daya dukung tanah asli.Persyaratan analisa data dalam penelitian ini menggunakan Uji Lillieforsuntuk menghitung normalitas dan Uji Bartlett untuk menghitung homogenitas.Dengan terpenuhinya persyaratan uji dan sampel tersebut, maka hipotesispenelitian diuji dengan uji t rata-rata satu pihak dengan derajat kebebasan (dk) =n â€” 1 dan ï¡ = 0,01. Hasil pengujian menunjukkan bahwa kriteria uji t (hitung)berada pada daerah penerimaan Ho. Hal ini dapat disimpulkan bahwa nilai CBRtanah + lumpur yang maksimum sebesar 41.47% yaitu terdapat pada tanah +lumpur 20%, ternyata melebihi dari nilai CBR tanah asli yang sebesar 20.74%.Dengan demikian hipotesis penelitian yang menyatakan: nilai maksimum darihasil penelitian adalah tanah + lumpur 20%.
PERBANDINGAN WAKTU PELAKSANAAN ANTARA BEKISTING SISTEM (TABLE FORMWORK) DENGAN BEKISTING SETENGAH SISTEM (SCAFFOLDING) PADA PELAT STRUKTUR GEDUNG
Authors: Raby Ahmad , Widiasanti Irika , Neolaka Amos
Published: March 2021

Dalam proyek pembangunan, waktu pelaksanaan proyek menjadi salah sa- tu aspekpenting untuk diperhitungkan. Hal tersebut menjadi penting dalam upaya untukmendapatkan kesesuaian waktu pelaksanaan tersebut dengan waktu kegia- tan proyekyang telah direncanakan. Sehingga waktu pelaksanaan proyek akan selesai sesuai denganyang telah direncanakan.Waktu pelaksanaan proyek yang tidak sesuai dengan waktu yang telah di- rencanakanakan berdampak buruk terhadap stabilitas proyek tersebut, yang pada akhirnya akanmenimbulkankan kerugian-kerugian khususnya di dalam hal pem- biayaan proyek.
PERBANDINGAN VOLUME KEBUTUHAN MATERIAL KUDA-KUDA RANGKA ATAP BAJA TIPE PRATT, HOWE, COMPOUND FAN
Authors: Widiasanti Irika , Purnomo Adhi , Budiman Arif
Published: March 2021

Penelitian ini bertujuan untuk mengetahui perbandingan kebutuhan material baja pada kuda-kuda bentuk Pratt truss, Howe Truss, danCompound Fan Truss sehingga dapat diketahui jumlah penggunaan kebutuhan material baja terkecil. Penelitian ini akan membandingkantiga tipe kuda-kuda pada panjang bentangan 24 m. Perhitungan gaya batang pada kuda-kuda menggunakanprogram SAP 2000 yang didasarkan oleh beban mati, beban hidup, dan beban angin yang bekerja pada struktur kuda-kuda sesuai denganSNI-03-1727-1989 tentang Tata Cara Pembebanan Untuk Rumah dan Gedung. Data perhitungan gaya batang didapat, selanjutnya ditentukanjenis profil baja yang sesuai dengan besarnya gaya dan jenis batang yang berkerja yaitu batang tarik dan tekan. Perhitungan dimensi profilpada batang kuda-kuda dilakukan sesuai dengan SNI 03-1729-2002 tentang Tata Cara Perencanaan Struktur Baja Untuk BangunanGedung.Berat parameter profil di setiap batang kemudian dikalikan dengan panjangnya sehingga diketahui volume material baja yang diperlukan dalam satuan kilogram(kg). Volume seluruh batang dijumlahkan dan kemudian dibandingkan dengan bentuk kuda-kudayang lainnya.Perbandingan dilakukan untuk mendapatkan bentuk kuda-kuda yang paling sedikit menggunakan bahan material baja.Kesimpulan penelitian ini adalah pada bentang 24 m bentuk kuda-kuda Compound Fan Truss memiliki jumlah kebutuhan materialbaja terkecil yaitu sebesar 1220,51 kg. Kuda-kuda Howe Truss memiliki jumlah kebutuhan pemakaian material baja dengan nilai sebesar1870,12 kg, sedangkan kuda-kuda Bentuk Pratt Truss memiliki jumlah kebutuhan material baja terbesar pada bentang ini yaitu 2112,37 kg.
Contemporary Outpatient Arthroplasty Is Safe Compared with Inpatient Surgery
Authors: Lan Roy H. , Samuel Linsen T. , Grits Daniel , Kamath Atul F.
Published: March 2021

Background:

Outpatient joint arthroplasty is a potential modality for increased case throughput and is rising in demand. However, we are aware of no study that has compared outcomes between risk-matched outpatient and inpatient procedures within the last 7 years. The aims of this study were to compare matched patient cohorts who underwent outpatient or inpatient joint arthroplasty in terms of 30-day adverse events and readmission rates.

Methods:

From the National Surgical Quality Improvement Program database, we identified patients who underwent primary total hip arthroplasty (THA), primary total knee arthroplasty (TKA), and primary unicompartmental knee arthroplasty (UKA) from 2009 to 2018. Using 10 perioperative variables, patients who underwent an outpatient procedure were 1:4 propensity score-matched with patients who underwent an inpatient procedure. The rates of 30-day adverse events and readmission were compared using the McNemar test. The risk factors for adverse events and readmissions were identified using multivariate regression.

Results:

Of 574,375 patients identified, 21,506 (3.74%) underwent an outpatient procedure. After propensity score matching, an outpatient joint arthroplasty was associated with a lower rate of adverse events (3.18% compared with 7.45%; p < 0.001). When assessed individually, outpatient TKA (3.15% compared with 8.11%; p < 0.001), THA (4.94% compared with 10.05%; p < 0.001), and UKA (1.78% compared with 3.39%; p < 0.001) were all associated with fewer adverse events overall and there was no difference in the rate of 30-day readmission, when compared with inpatient analogs. Outpatient joint arthroplasty was an independent factor for lower adverse events (odds ratio [OR], 0.407 [95% confidence interval (CI), 0.369 to 0.449]; p < 0.001), with no increase in the risk of readmission (OR, 1.004 [95% CI, 0.878 to 1.148]; p = 0.951).

Conclusions:

Contemporary outpatient joint arthroplasty demonstrated lower rates of adverse events with no increased rate of 30-day readmission when compared with risk-matched inpatient counterparts. Although multiple factors should guide the decision for the site of care, outpatient arthroplasty may be a safe alternative to inpatient arthroplasty.

Level of Evidence:

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
A Comparison Between the Theoretical Cross Section Based on the Partial Level Density Formulae Calculated by the Exciton Model with the Experimental Data for (_79^197)Au nucleus
Authors: Abdullah Athraa , Salloum Ali D
Published: March 2021

In this paper, the theoretical cross section in pre-equilibrium nuclear reaction has been studied for the reaction  at energy 22.4 MeV. Ericson’s formula of partial level density PLD and their corrections (William’s correction and spin correction) have been substituted  in the theoretical cross section and compared with the experimental data for  nucleus. It has been found that the theoretical cross section with one-component PLD from Ericson’s formula when  doesn’t agree with the experimental value and when . There is little agreement only at the high value of energy range with  the experimental cross section. The theoretical cross section that depends on the one-component William's formula and on-component corrected to spin PLD formula doesn't agree with the experimental cross section. But in case of theoretical cross section based on two-component Ericson's and William's PLD formulae it has been found that there is acceptable agreement when the exciton number is taken .
­­­­Accumulation and clearance of tissue residues and health status of Nile tilapia Oreochromis niloticus (L.) juveniles as influenced by the extended oral oxytetracycline-dosing
Authors: Abraham Thangapalam Jawahar , Roy Anwesha , Julinta Roy Beryl , Singha Jasmine , Patil Prasanna Kumar , Krishna Edapparambil Krishnappan Nanitha , Rajisha Ravindran , Kumar Kesavan Ashok
Published: March 2021

Antibiotics are considered an important primary therapy for bacterial diseases in aquaculture. This study evaluated the influence of oral administration of oxytetracycline (OTC) on feed intake, growth, mortality, residue accumulation and clearance, and histopathological changes in the vital organs of six groups of Nile tilapia Oreochromis niloticus when fed at 0-10 times the therapeutic dose (1X: 80 mg/kg biomass/day) for 10 and 20 consecutive days. The feed intake was reduced only slightly, viz., 2% in 10 days and 4.25% in 20 days dosing trials at 1X-dose compared to control. While in other groups, an OTC-dose-dependent reduction in feed intake up to 31.25% was noted. The fish of 0.5X and 1X groups recorded significantly high biomass; while the other OTC-dosed groups recorded significantly lower biomass than the control. The fold change in biomass between the control and 1X groups was insignificant. A dose-dependent mortalities were recorded in OTC-dosed fish in 10 days (1.67±2.89-6.67±2.89%) and 20 days (3.33±2.89-8.33±2.89%) trials. The OTC concentration in fish muscle established a dose- and time-response relationship. The OTC residue levels in muscle even on day 20 OTC-dosing were lower than the maximum residue limit permitted by Codex Alimentarius (200 ng/g). On day 23 post-OTC-dosing, the residue levels were traces to <10 µg/g in all groups, except the 10X group. The OTC-dosing caused mild to moderate pathological changes in the gills, liver and kidney of O. niloticus and the fish were able to mount adaptive biological responses to overcome the stress with time.
Quantitative trait locus analysis of cucumber fruit texture using double-digest restriction-site-associated DNA sequencing
Authors: Shimomura Koichiro , Sugiyama Mitsuhiro , Kawazu Yoichi , Yoshioka Yosuke
Published: March 2021

Fruit firmness and crispness are important traits of cucumber because they directly affect its commercial value. We performed quantitative trait locus (QTL) analysis of these fruit texture traits with the double-digest restriction-site-associated DNA sequencing (ddRAD-Seq) technique and detected 31 QTLs for fruit firmness: 11 for placenta firmness, 12 for skin firmness, and 8 for flesh firmness; and 25 QTLs for crispness-related scores: 10 for flesh crispness index, 8 for flesh apparent fractal dimension by Richardson plot, and 7 for flesh apparent fractal dimension by box-counting (Kolmogorov’s dimension). Several QTLs associated with flesh firmness and crispness are located near regions for fruit length, diameter, and length-to-diameter ratio, and for resistance to powdery mildew and downy mildew, indicating that gene linkage is likely to limit breeding efficiency. Our results will contribute to the development of informative DNA markers closely linked to genes for desirable fruit texture traits that are required for effective selection of new cultivars.
Identification of Fractional Order System with Scarce Measurement Data Based on Multi Innovation Estimation Algorithm
Authors: Hongwei WANG , Qian ZHANG , Qin ZHA , Ahemaide Mutalifu
Published: March 2021

Aiming at the modeling issues of fractional order Hammerstein system with scarce measurements, a novel multi-innovation hybrid identification algorithm is proposed to deal with them. Firstly, a multi-innovation estimation algorithm based on auxiliary model is presented to estimate the parameters of the nonlinear fractional order system, and a multi-innovation Levenberg-Marquardt algorithm are derived to confirm the fractional orders. Secondly, the convergence properties of the proposed algorithm are analyzed using the lemmas and theorems. Finally, in order to illustrate the effectiveness of the proposed algorithm, two fractional order nonlinear systems with scarce measurements are studied to prove the validity.
Explant Cultures From Prostate Needle Biopsies as A Model to Obtain Highly Enriched Populations of Benign and Carcinoma-Associated Fibroblasts
Authors: Cerda-Infante Javier , Sánchez Marianela , Rojas Pablo A. , Corvalán Alejandro H. , Méndez Gonzalo P. , Nervi Bruno , Smith Gary J. , Francisco Ignacio F. San , Godoy Alejandro S. , Montecinos Viviana P.
Published: March 2021

Prostate cancer (PCa) is a multifocal neoplasm in which different cancer foci can be found within a single organ. This feature represents a technical difficulty when obtaining highly-enriched primary cultures of human prostate stroma cells (HPSCs), since their isolation involves enzymatic digestion of large pieces of tissue, resulting in an unknown proportion of benign- (BAF) and carcinoma-associated fibroblasts (CAF). Here we report an efficient tissue explant methodology to obtain highly-enriched populations of BAFs or CAFs from benign and malignant human prostate specimens, including needle biopsies. Also, we investigated whether different histological/pathological origins of the prostate tissue determine the activation of distinct transcription programs in HPSCs. Analysis of gene expression profiles revealed that CAFs exhibited a unique transcriptional program characterized by up-regulation of genes involved in proliferation, migration and cell adhesion. CAFs, but not BAFs, expressed typical activation markers such as α-smooth muscle actin, tenascin C and collagen 1 and stimulated tumor growth of PCa cells in vivo. Our study indicated that gene expression profile of HPSCs was determined mostly by the zone rather than the pathological state of the prostate tissue and that tissue explants from needle biopsies provide a valuable tool to obtain highly enriched primary cultures of HPSCs.
Tyramide Signal Amplification coupled with multiple immunolabeling and RNAscope in situ hybridization in formaldehyde-fixed paraffin-embedded human fetal brain.
Authors: Alzu'bi Ayman , Sankar Niveditha , Clowry Gavin
Published: March 2021

Several strategies have been recently introduced to improve the practicality of multiple immunolabelling and RNA in situ hybridization methods. We present a modified hybrid protocol of recently described complex detection strategies: (1) elution of antibodies prior to second round of staining (2) use of integrated polymers of HRP with secondary antibodies, and (3) tyramide signal amplification of multiple immunofluorescence labelling, to achieve a high sensitivity sequential multiple labeling using antibodies from the same species. A modified protocol of the novel RNAscope in situ hybridization method, including coupling with immunofluorescence on sections of early human fetal brain, has also been developed. These two techniques, when properly optimized, were highly compatible with routine formaldehyde-fixed paraffin-embedded tissue that preserves the best morphological characteristics of delicate fetal brain samples, allowing high power signal amplification for detection of protein and mRNA of genes that are sparsely expressed in the human fetal telencephalon.
Descriptive Cross-Sectional Study on Acanthamoeba - Associated Pseudomonas Species at Kenyatta National Hospital Intensive Care Unit
Authors: Macharia Zipporah W. , Mureithi Marianne W. , Mburugu Magdalene W. , Gitau Wilfred , Masika Moses M. , Njaanake Kariuki
Published: March 2021

Background

Free-living amoeba (FLA) such as Acanthamoeba spp. are ubiquitous protozoa that graze on microorganisms such as bacteria, viruses and algae. However, amoebic resistant microorganisms (ARM) such as Pseudomonas spp. evade being killed by amoeba thus multiplying within the free-living amoeba. Free-living amoeba may therefore enhance transmission of Pseudomonas spp. across hospital environments thus contributing to the burden of nosocomial infections and spread of antimicrobial resistance. In Kenya, nosocomial Pseudomonas spp. infections present a major health challenge but the role of free-living amoeba such as Acanthamoeba spp. in transmission of these infections has so far not been assessed. This study aimed at the isolation of Acanthamoeba spp. from various surfaces and equipment and molecular detection of the Acanthamoeba-associated Pseudomonas spp.
Methods

This was a descriptive cross-sectional study in which 153 swabs in duplicate (306) were collected from selected surfaces and equipment. Acanthamoeba spp. cultures were performed on one batch of 153 swabs and bacterial cultures on the other batch of 153 swabs. Polymerase chain reaction (PCR) was performed to detect Pseudomonas sp. genomic deoxyribonucleic acid (DNA) within Acanthamoeba spp. isolates.
Results

The proportion of swabs that had Acanthamoeba spp. isolates was 93.5% (n = 153) while that of bacterial isolates was 82.4% (n = 153). Of 168 bacterial isolates obtained, 10.7% was Pseudomonas spp. Acanthamoeba spp. subcultures were done on 62.7% (n = 153) primary Acanthamoeba spp. isolates. Only 22.9% (n = 96) of the Acanthamoeba spp. subcultures were successful. Pseudomonas sp. genomic DNA was detected in 45.5% (n = 22) of all positive Acanthamoeba spp. subcultures using PCR.
Conclusion

Pseudomonas sp., an ARM, exists within Acanthamoeba spp. on various surfaces and equipment at KNH ICU. This suggests a possible role of Acanthamoeba spp. in Acanthamoeba- ARM associated nosocomial infections transmission and in spread of antimicrobial resistant genes across microorganisms in hospitals.
Evidence-based recommender system and experimental validation for high-entropy alloys
Authors: Ha Minh-Quyet , Nguyen Nguyen-Duong , Nguyen Viet-Cuong , Nagata Takahiro , Chikyow Toyohiro , Kino Hiori , Miyake Takashi , Denœux Thierry , Huynh Van-Nam , Dam Hieu-Chi
Published: March 2021

We present a data-driven approach to explore high-entropy alloys (HEAs). To overcome the challenges with numerous element-combination candidates, selecting appropriate descriptors, and the limitations and biased of existing data, we apply the evidence theory to develop a descriptor-free evidence-based recommender system (ERS) for recommending HEAs. The proposed system measures the similarities between element combinations and utilizes it to recommend potential HEAs. To evaluate the ERS, we compare its HEA-recommendation capability with those of matrix-factorization- and supervised-learning-based recommender systems on four widely known data sets, including binary and ternary alloys. The results of experiments using k-fold cross-validation on the data sets show that the ERS outperforms all competitors. Furthermore, the ERS shows excellent extrapolation capabilities in experiments of recommending quaternary and quinary HEAs. We experimentally validate the most strongly recommended Fe-Co-based magnetic HEA, viz. FeCoMnNi, and confirm that it shows a body-centered cubic structure and is stable at high temperatures.
Quantitative proteomic and lipidomics analyses of high oil content GmDGAT1-2 transgenic soybean, illustrates the regulatory mechanism of lipoxygenase and oleosin
Authors: Xu Yang , Yan Fan , Liu Yajing , Wang Ying , Gao Han , Zhao Shihui , Wang Qingyu , Li Jingwen
Published: March 2021

The main goal of soybean breeding is to increase the oil content. Diacylglycerol acyltransferase (DGAT) is a key rate-limiting enzyme in fatty acid metabolism, and may regulate oil content. Herein, 10 GmDGAT genes were isolated from soybean and transferred into wild-type (WT) Arabidopsis. The total fatty acid was 1.2 times higher in T3 GmDGAT1-2 transgenic Arabidopsis seeds than in WT. Therefore, GmDGAT1-2 was transferred into WT soybean (JACK), and four T3 transgenic soybean lines were obtained. The results of High performance gas chromatography and Soxhlet extractor showed that, compared with those of JACK, oleic acid (18:1), and total fatty acid levels in transgenic soybean plants were much higher, but linoleic acid (18:2) was lower than WT. Palmitic acid (16:0), stearic acid (18:0), and linolenic acid (18:3) were not significantly different. For mechanistic studies, 436 differentially expressed proteins (DEPs) and 180 differentially expressed metabolites (DEMs) were identified between WT (JACK) and transgenic soybean pods using proteomic and lipidomics analyses. Four lipoxygenase proteins were down-regulated in linoleic acid metabolism while four oleosin proteins were up-regulated in the final oil formation. The results showed an increase in the total fatty acid and 18:1 composition, and a decrease in the 18:2 composition of fatty acid. Our study brings new insights into soybean genetic transformation and the deep study of molecular mechanism that changes the total fatty acid, 18:1, and 18:2 compositions in GmDGAT1-2 transgenic soybean.
Parametrized Quantum Circuits of Synonymous Sentences in Quantum Natural Language Processing
Authors: Salari Vahid , Abbaszadeh Mina , Mousavi Seyyed Shahin
Published: March 2021

In this paper we develop a compositional vector-based semantics of positive transitive sentences in quantum natural language processing for a non-English language, i.e. Persian, to compare the parametrised quantum circuits of two synonymous sentences in two languages, English and Persian. By considering grammar+meaning of a transitive sentence, we translateDisCoCat diagram via ZX-calculus into quantum circuit form. Also, we use a bigraph method to rewrite DisCoCat diagram and turn into quantum circuit in the semantic side.
Age-dependent seroprevalence of SARS-CoV-2 antibodies in school-aged children from areas with low and high community transmission
Authors: Boey Lise , Roelants Mathieu , Merckx Joanna , Hens Niel , Desombere Isabelle , Duysburgh Els , Vandermeulen Corinne
Published: March 2021

BackgroundIt is not yet clear to what extent SARS-CoV-2 infection rates in children reflect community transmission, nor whether infection rates differ between primary schoolchildren and young teenagers.MethodsA cross-sectional serosurvey compared the SARS-CoV2 attack-rate in a sample of 362 children recruited from September 21 to October 6, 2020 in primary (ages 6-12) or lower secondary school (ages 12-15) in a municipality with low community transmission (Pelt) to a municipality with high community transmission (Alken) in Belgium. Children were equally distributed over grades and regions. Blood samples were tested for the presence of antibodies to SARS-CoV-2 with an enzyme-linked immunosorbent assay. ResultsWe found anti-SARS-CoV-2 antibodies in 4.4% of children in the low transmission region and in 14.4% of children in the high transmission region. None of the primary schoolchildren were seropositive in the low transmission region, whereas the seroprevalence among primary and secondary schoolchildren did not differ significantly in the high transmission region. None of the seropositive children suffered from severe disease. Children who were in contact with a confirmed case (RR: 3.8; 95%CI: 1.7 – 8.3), who participated in extracurricular activities (RR: 5.6; 95%CI: 1.2 – 25.3) or whose caregiver is a healthcare worker who had contact with COVID-19 patients (RR: 2.2; 95%CI: 1.0 – 4.6), were at higher risk of seropositivity.ConclusionIf SARS-CoV2 circulation in the community is high, this will be reflected in the pediatric population with similar infection rates in children aged 6-12 years and 12-15 years.
Bifurcation Analysis of Rotor/Bearing System using Third Order Journal Bearings Stiffness and Damping Coefficients
Authors: Elsayed Tamer , Sayed Hussein
Published: March 2021

Journal bearings have many applications in industry due to its high load carrying capacity. In addition proper design of journal bearings enables safe operation at very high speeds. However, they are susceptible to oil whirl instability which may cause bearing failure. The fluid film pressure distribution inside the journal bearing is described by Reynolds equation. Many studies had been done to approximate the bearing performance using first order bearing coefficients. Although this analysis is stable for evaluating the threshold speed but it is insensitive to limit cycles above the threshold speed. Mush literature show that above the threshold speed, subcritical or supercritical bifurcations may be observed. Therefore, the aim of the present paper is to evaluate the third order bearing coefficients for a finite length journal bearing using finite perturbation method. The values of these coefficients are evaluated using infinitesimal perturbation analysis. These values are used to investigate the bifurcation stability of flexible Jeffcott rotor supported by two symmetric journal bearings. The effect of rotor stiffness ratio on the bifurcation stability of the system is investigated. The results of this work show that the third order parameters can be used to evaluate the type of bifurcation above the threshold speed.
Porous Wood Decorated with Gold Nanoparticles as Flow-through Membrane Reactor for Catalytic Hydrogenation of Methylene Blue and 4-Nitrophenol
Authors: Yu Yuanyuan , Zhang Qingtong , Chi Mingchao , Jiang Hongrui , Liu Xi , Wang Shuangfei , Min Douyong
Published: March 2021

In this study, gold nanoparticles (Au NPs) were decorated into Paulownia Sieb. et Zucc. chip. Lignin, as one main component of wood, contains the reducing groups e.g. hydroxyl, carbonyl and aldehyde groups. Under sunlight irradiation, Au (III) diffused into wood was in situ reduced by lignin to form gold nanoparticles. Therefore, the Au NPs/Wood was successfully fabricated by this facile and green procedure. Meanwhile, the three-dimensional interpenetrating network of wood prevented the aggregation of Au NPs which retained its catalytic activity. Methylene blue and 4-nitrophenol were adopted as model organic contaminants to evaluate the catalytic hydrogenation ability of the Au NPs/Wood. The analyses of XRD, SEM, ICP-MS and XPS indicated that Au NPs were successfully immobilized in wood chip. The degradation results revealed that the Au NPs/Wood has excellent catalytic activity for methylene blue and 4-nitrophenol hydrogenation under batchwise and continuous flow process. Meanwhile, the Au NPs/Wood also exhibited excellent recyclability. The hydrogenation efficiency of MB and 4-NP still reaches more than 90% after 8 cycles. This study provides a new solution for green and low-cost fabrication of Au NPs/Wood which has broad application prospects in wastewater treatment.