bluuebunny/crossref_metadata_2025 huggingface dataset:
PERK-Mediated Unfolded Protein Response Signaling Restricts Replication of the Tick-Borne Flavivirus Langat Virus
Authors: Lewy Tyler G. , Offerdahl Danielle K. , Grabowski Jeffrey M. , Kellman Eliza , Mlera Luwanika , Chiramel Abhilash , Bloom Marshall E.
Published: March 2020

The unfolded protein response (UPR) maintains protein-folding homeostasis in the endoplasmic reticulum (ER) and has been implicated as both beneficial and detrimental to flavivirus infection. Protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK), a sensor of the UPR, is commonly associated with antiviral effects during mosquito-borne flavivirus (MBFV) infection, but its relation to tick-borne flavivirus (TBFV) infection remains largely unexplored. In this study, we identified changes in UPR and autophagic activity during Langat virus (LGTV) infection. LGTV robustly activated UPR and altered autophagic flux. Knockdown of endogenous PERK in human cells resulted in increased LGTV replication, but not that of closely related Powassan virus (POWV). Finally, on examining changes in protein levels of components associated with UPR and autophagy in the absence of PERK, we could show that LGTV-infected cells induced UPR but did not lead to expression of C/EBP homologous protein (CHOP), an important downstream transcription factor of multiple stress pathways. From these data, we hypothesize that LGTV can antagonize other kinases that target eukaryotic initiation factor 2α (eIF2α), but not PERK, implicating PERK as a potential mediator of intrinsic immunity. This effect was not apparent for POWV, a more pathogenic TBFV, suggesting it may be better equipped to mitigate the antiviral effects of PERK.
Rapid and Broad Immune Efficacy of a Recombinant Five-Antigen Vaccine against Staphylococcus aureus Infection in Animal Models
Authors: Zeng Hao , Yang Feng , Feng Qiang , Zhang Jinyong , Gu Jiang , Jing Haiming , Cai Changzhi , Xu Liming , Yang Xi , Xia Xin , Zeng Ni , Fan Shaowen , Zou Quanming
Published: March 2020

Staphylococcus aureus (S. aureus) is a leading cause of both healthcare-and community-associated infections globally, which result in severe disease and readily developing antibiotic resistance. Developing an efficacious vaccine against S. aureus is urgently required. In the present study, we selected five conserved antigens, including the secreted factors α-hemolysin (Hla), staphylococcal enterotoxin B (SEB) and the three surface proteins staphylococcal protein A (SpA), iron surface determinant B N2 domain (IsdB-N2) and manganese transport protein C (MntC). They were all well-characterized virulence factor of S. aureus and developed a recombinant five-antigen S. aureus vaccine (rFSAV), rFSAV provided consistent protection in S. aureus lethal sepsis and pneumonia mouse models, and it showed broad immune protection when challenged with a panel of epidemiologically relevant S. aureus strains. Meanwhile, rFSAV immunized mice were able to induce comprehensive cellular and humoral immune responses to reduce bacterial loads, inflammatory cytokine expression, inflammatory cell infiltration and decrease pathology after challenge with a sub-lethal dose of S. aureus. Moreover, the importance of specific antibodies in protection was demonstrated by antibody function tests in vitro and in vivo. Altogether, our data demonstrate that rFSAV is a potentially promising vaccine candidate for defensing against S. aureus infection.
Vaccination Perception and Attitude among Undergraduate Medical and Teacher Education Students at Charles University, Prague, Czech Republic
Authors: Šálek Jiří , Čelko Alexander M. , Dáňová Jana
Published: March 2020

This cross-sectional comparative study was designed to evaluate different opinions and their impact on vaccine confidence, as perceived by students of two different university programs (medicine and teacher education), as both of them play important roles in patient education, with the latter major shaping the skills of critical thinking. Multi-item, opinion-based, paper-and-pencil anonymous questionnaires were distributed among students of medicine and teacher education. Data were sorted and divided into two sets to be analyzed using logistic regression. Out of a total of 722 respondents, 386 were medical students and 336 were teacher education students. While most respondents said they were not in favor of alternative medicine, a significantly higher number of alternative medicine followers were teacher education students. The positive vaccination perception rate (PVPR) is not dependent on the behavioral factors of student respondents (irrespective of their major) but is largely affected by their attitude to alternative medicine. Fear of infection dramatically increased the PVPR (up to 6.7 times) in those who were versus were not afraid of getting infected or were not quite sure whether to fear it. Fear of side effects of vaccination clearly decreased the PVPR, by at least 84%.
Serum Transaminases at Presentation and Association with Acute Dialysis in Children with Hemolytic Uremic Syndrome
Authors: Talathi Saurabh , Barnes Margaux , Aban Inmaculada , Dimmitt Reed , Askenazi David J.
Published: March 2020

Background

To determine whether serum transaminases at presentation predict the need for dialysis in children with hemolytic uremic syndrome (HUS).

Methods

Single-center, retrospective chart review of pediatric patients with HUS. Data collected included demographics, clinical and laboratory parameters, and need for dialysis. These factors were compared between two groups: “dialysis” versus “no dialysis.” Continuous data were compared using a t test whereas categoric data were compared by the chi-squared test. Multivariate logistic regression was performed on a prior set of variables to determine if serum transaminases independently predict the need for dialysis.

Results

A total of 70 children were included in the study, of which, 39 (27%) received dialysis. The no-dialysis group had a higher proportion of white patients compared with the dialysis group (74% dialysis versus 94% no dialysis). The only clinical sign at admission associated with dialysis was reduced urine output (56% versus 16%, P<0.001). Univariate logistic regression identified admission serum creatinine, aspartate transaminase (AST), and alanine transaminase (ALT) to be associated with the need for dialysis. Multivariate logistic regression showed serum AST and ALT to be independent predictors of the need for dialysis, with both improving the performance of the regression model. Sensitivity analysis showed a cutoff of 129 U/L for AST and 83 U/L for ALT with high specificity.

Conclusions

Serum transaminases at presentation are independently associated with the subsequent need for dialysis in patients with HUS. Our study suggests that when both serum ALT and AST are normal, the likelihood to need dialysis is very low; alternatively, when both serum ALT and AST are more than two times the upper level of normal, the need for dialysis is very high.
REPEATED IMPLANTATION FAILURE
Authors: Le Minh Tam
Published: March 2020

Repeated Implantation Failure (RIF) is defined as an unsuccessful clinical pregnancy after at least four good quality embryos transferred for at least three cycles of in vitro fertilization with fresh or thawed embryos in women under 40 years of age. RIF may be related to embryo or uterus factors. These cases should be examined carefully to determine the causes. Assessment of ovarian function through secondary follicles (AFC), basic FSH and AMH, increased fragmentation of sperm may be causes. The various abnormalities in the uterus, such as uterine fibroids, endometrial polyps, congenital abnormalities and intrauterine adherence should be eliminated by means of ultrasound, hysteroscopy. Hydrosalpinx can also be a cause of RIF and determined by HSG. If necessary, laparoscopy is a reliable means for diagnosis and management. The treatment should be based on evidence-based medicine, to help improve the quality of embryos and the acceptability of the endometrium. If not resolve the status of RIF in the subsequent IVF cycle, can consider for gamete donor, embryo donor or surrogacy.

Key words: Repeated Implantation Failure (RIF), secondary follicles (AFC), FSH, AMH, fertilization
THE EFFICACY OF TERBUTALINE SULFATE COMBINED WITH INSULIN- GLUCOSE IN TREATING HYPERKALEMIA IN PATIENTS WITH CHRONIC KIDNEY DISEASE
Authors: Dinh Thi Minh Hao , Vo Tam
Published: March 2020

Background: (1) To describe the characters of hyperkalemia in patients with chronic kidney disease at Hue Central Hospital, (2) To Evaluate the efficacy of Terbutaline Sulfate combined with Insulin- Glucose in treating of hyperkalemia; Patients and methods: Interventional case- control study on 108 patients with chronic kidney disease treated in Department of Nephrology at Hue Central Hospital since 4/2013 to 4/2014, patients underwent clinical examinations, blood tests, ECG, and were divided into 2 groups treated with Insulin- Glucose and Insulin- Glucose- Terbutaline; Results: - serum potassium mean 5.85 ± 0.43 mmol/l, group used Insulin- Glucose reduced K+ about 0.83 mmol/l, group used Insulin- Glucose- Terbutaline reduced K+ about 1.27 mmol/l (reliable 95%); - side effects: hypoglycemia 8.6% with the lowest glucose is 1.80 mmol/l, belongs to both group; Conclusion: Terbutaline sulfate in combined with Insulin and Glucose can reduce serum potassium sooner and better than Insulin- glucose alone.

Key words: chronic kidney disease, hyperkalemia, potassium, Terbutaline, Insulin, Bricalnyl
DETERMINATION THE CONCENTRATION OF ASIATICOSIDE IN CENTELLA ASIATICA (L.) URB. – APIACEAE AT QUANG DIEN DISTRICT, THUA THIEN HUE PROVINCE
Authors: Dao Thi Cam Minh , Nguyen Viet Khan , Nguyen Huu Tien , Le Thi Thanh Ngoc , Ho Viet Duc
Published: March 2020

Background: Centella asiatica (L.) Urb. - Apiaceae has been used in traditional medicine to cure many diseases such as cholera dysentery, pimples, discharge, cough, sore throat, hemorrhoids and detoxification. The objective is to determine the amount of active ingredient asiaticoside in Centella asiatica (L.) Urb at Quang Tho 2 cooperatives, Quang Dien District, Thua Thien Hue province. Materials and method: C.asiatica after being harvested, washed and drained was dried in sunlight or in dryer with different temperature. Each 20g of C.asiatica was extracted using various methods with dissolving appropriate solvents. The extracted solution was diluted by extracted solvent. This diluted solution was filtered through 0.45μm membrane filter for the purpose of chromatography. Results: The chromatography condition: mobile phase consisting of methanol: Trifluoracetic acid 1% (60: 40); Column: HiQ Sil C18 (4.6 x 250 mmm) 3μm; flow rate at 0.7 ml/min; The maximum detection wavelength: 215 nm; retention time of asiaticosid (tR): 18.7 minutes. Conclusion: The content of asiaticoside in sample is from 0.09% to 1.35% depending on the initial sample handling and sample extraction method.

Keywords: Centella asiatica (L.) Urb. - Apiaceae, asiaticoside, HPLC.
EVALUATION OF THE RECOVERY EFFECTS OF MOTOR FUNCTION BY ELECTRO-ACUPUNCTURE, POINT INJECTION AND MASSAGE IN CHILDREN WITH SPASTIC CEREBRAL PALSY
Authors: Nguyen Thi Ngoc Linh , Dang Kim Thanh , Nguyen Dien Hong
Published: March 2020

Background: Cerebral palsy is a medical term for a group of disorders of the central nervous system causing multiple motor disabilities, intellectual, sensory and behaviors children with cerebral palsy are the burden of family and society. Purposes: Evaluate the recovery effect of motor function by electro-acupuncture, point injection and massage in children with spastic cerebral palsy. Patients and Method: a controlled, clinical trial. Sixty patients were divided into two groups: a controlled group and a massage group. Two groups were treated electro-acupuncture, point injection and massage was added in the massage group during four weeks, once a day, six times per day. Results: after treatment, all of patients in massage group had good and fair levels (100%). The massage group decreased level of spastic muscle more than the controlled group with electro-acupuncture and point injection (p<0.05). Conclusion: Electro-acupuncture, point injection combined with massage improved the motor function and level of spastic muscle in children with spastic cerebral palsy.

Keywords: Cerebral palsy, spastic, electro-acupuncture, point injection, massage
META-ANALYSIS IN MEDICAL RESEARCH USING REVIEW MANAGER SOFTWARE
Authors: Doan Vu Xuan Loc , Doan Vu Xuan Tho , Nguyen Thanh Thao
Published: March 2020

Background and Purpose: A single study can not solve or provide definitive answers to a specific scientific problem. In scientific research, particularly in the field of medicine, there are many problems that lack of scientific consensus. Meta-analysis enables systematising data from multiple sources which provides better decision than a single study. There are many available software packages for meta-analysis. We introduce a free, useful software which was recognized by international scientific journals. Method: Application of the Review Manager software for meta-analysis.

Key words: meta-analysis, software
Denoising and Analysis of EMG Signal using Wavelet Transform
Authors: Ara Iffat
Published: March 2020

EMG is the recording of the electrical activity produced within the muscle fibers. Measurement of EMG signal is corrupted by additive noise whose signal-to-noise ratio (SNR) varies. Feature extraction is an important step for EMG classification. Time domain and frequency domain parameters were chosen as representative features for EMG signals. In this thesis, the Wavelet transform and wavelet coefficients have adopted to represent the EMG signals. Wavelet transform (WT) has been applied also in this research for the analysis of the surface electromyography signal (SEMG). The properties of wavelet transform turned out to be suitable for nonstationary EMG signals. Also Spectrum analysis has been applied to various types of EMG signal.
The Importance of Diagnosis and Specialized Treatment in Merkel Cell Carcinoma: Case Report in a Young Healthy Woman, Literature Review and Brief Update on Approach
Authors: Liliane Cristina da Silva , de Oliveira Regazzini, Rosana Cardoso
Published: March 2020

Merkel Cell Carcinoma (MCC) is extremely rare and aggressive, with an overall survival of 40% in 5 years. The non-oncological physician has large difficulty about the correct approach of this pathology. We report the sixth case of MCC in a young healthy patient (woman, 19 years old) described in the medical literature, who was treated twice for sebaceous cyst, evolved with local disease progression, needed a larger resection and, after adjuvant therapy, remains no tumor recurrence. Despite being an extremely rare neoplasm, therapeutics should not be underestimated by non-oncological physician because this cancer is too aggressive, and the correct oncological approach could result in increased progression-free survival for these patients.
Transmission and Prevention of Wuhan Coronavirus Disease 2019 (COVID-19) under Minimum Sunspot Number
Authors: Kim Tai-Jin
Published: March 2020

Porpoises, infected by Cetacean Morbillivirus from the feces of humpback whales in the East Sea, swam along the Yangtze River to reach Dongting Lake. Infected porpoises could be stranded and moved to Huanan Seafood Wholesale Market. Wuhan is low-lying and susceptible to flooding from the Yangtze River. Agricultural water in Hubei should prevent the harmful algal blooms for clean water. Sterilization by ultraviolet is recommended in air, water and confirmed patient with dialyzer to recover the Wuhan coronavirus disaster. The vaccine can be developed by culturing blood from CeMV infected porpoises in the Yangtze River or Dongting Lake, along with Wuhan coronavirus confirmed patient blood. Existing MMR Vaccine can be applied to cure
the confirmed patient. CO2 emissions increased continuously with years (R2= 0.9497) causing high levels of UVB radiation on the Earth. Due to 11 years cycle of the sunspot number, there can be another dangerous outbreak at Dongting Lake with millions of migratory birds in China in coming years between 2030 and 2032.
Low Cost ND: YAG Medical Laser as a Lithotripter and Laser Cautery Machine
Authors: Jawale Dr. Sagar A.
Published: March 2020

Lasers have extensive application in medical sciences today but unfortunately the cost of medical Lasers is exorbitant and it is beyond the capacity of an average doctor to afford it. To solve this problem, I did my own research and developed low cost medical Laser which most of the doctors can afford.
Association between Periodontitis and Severe Asthma: The Role of IgG Anti-Porphyromonas gingivalis Levels
Authors: de Miranda Patricia Mares , Pereira Lopes Mabel Proence , Bulhosa Santos Rebeca Pereira , Lopes Falcão Michelle Miranda , Carvalho Filho Paulo Cirino de , Cruz Álvaro , Gomes Filho Isaac Suzart , Xavier Márcia Tosta , Moura Costa Lília Ferreira de , Figueiredo Camila , Trindade Soraya Castro
Published: March 2020

Asthma and periodontitis are both very prevalent worldwide. Although the association between these diseases has been investigated, the biological mechanism underlying this association, especially the role of biological mediators, remains unclear. Thus, the aim of this study was to evaluate serum levels of anti-Porphyromonas gingivalis IgG in subjects with and without severe asthma. A case-control study involving 169 individuals consisted of subjects with severe asthma in addition to others without asthma (control group). An indirect enzyme linked immunosorbent assay (ELISA) was performed to measure serum levels of IgG specific to Porphyromonas gingivalis. Bacterial DNA was extracted from subgingival biofilm samples and real-time polymerase chain reaction (RT-PCR) analysis was performed to quantify Porphyromonas gingivalis levels.
An investigation on the application of CaII-FeII-FeIII magnetic hydrotalcite-like-compounds for the removal of impurities in aqueous systems
Authors: Engin Güleda , Sarı Erkan Hanife , White David A.
Published: March 2020

The main aim of this study is to investigate the feasibility of utilising novel hydrotalcite-like-compounds as ion-exchangers for the removal of anionic impurities from aqueous solution. Hydrotalcite is naturally occurring, rarely found anionic clay. It has a positively charged layered structure consisting of two metal oxide layers and an interlayer of carbonate anions. Hydrotalcites can, therefore, be used as ion-exchangers. However, the carbonate anion is highly selected by natural hydrotalcite, making the ion-exchange capacity for other anions very low. In this study, several synthetic hydrotalcite-like compounds and a magnetic hydrotalcite-like compound samples were prepared in order to remove anionic impurities from waters. The physical structure and chemical properties of these anionic clays were characterised using standard characterisation techniques. The removal capacities of the synthetic products obtained were then investigated. Magnetic hydrotalcite-like-compound, namely, CaII-FeII-FeIII, was proved to be a good ion-exchanger.
ANTİK KENTLERİN OLUŞUM KURGULARININ ANALİZ EDİLMESİNDE KULLANILAN COĞRAFİ, SOSYO-KÜLTÜREL VE TARİHSEL BELİRLEYİCİLER: ANAVARZA ÖRNEĞİ
Authors: DURGUN ŞAHİN Yelda , ALTUNKASA Mehmet
Published: March 2020

Tarihte kentler sosyal, kültürel ve fiziksel bir oluşum ve etkileşim sonucunda gerçekleşmiştir. Bir kentin oluşumundaki arka planın okunabilmesi için, o kentin sosyal, kültürel ve fiziksel oluşum süreçleri doğrultusunda, multidispliner bir çalışma ile değerlendirilmesi gerekmektedir. Bu değerlendirmenin nasıl bir yöntem ile analiz edilebileceği ise çalışmanın temel çıkış noktasını oluşturmaktadır. Bu çalışmanın amacı, tarihi anlamanın somut bir aracı olan antik kentler için çok boyutlu kent envanterinin oluşturulmasıdır. Antik kentin şekillenmesinde rol alan alt belirleyicilerin tanımlanması ve sınıflandırılması ile antik kent analiz modeli ölçütleri geliştirilmiştir. Bu çalışma, Anadolu topraklarının bir parçası olan Ovalık Kilikya bölgesi sınırları içerisinde yer alan Anavarza antik kenti sınırlarını kapsamaktadır. Bu bağlamda Anavarza antik kentine ait belirleyiciler sosyo-kültürel, coğrafi ve tarihsel olarak gruplandırılarak Anavarza antik kenti envanter verileri oluşturulmuştur.
ADULT ATTACHMENT DAN KEPUASAN PERNIKAHAN PADA ISTRI YANG BEKERJA
Authors: Hemalzi Widya , Indryawati Rini
Published: March 2020

Istri yang bekerja seringkali terbentuk pada persoalan klasik dalam menjalani rumah tangga, yaitu kehilangan kelekatan karena kesibukan dalam bekerja sehingga kepuasan pernikahannya menurun. Tujuan dari penelitian ini adalah mengukur secara empiris korelasi antara adult attachment dan kepuasan pernikahan pada istri yang bekerja. Partisipan penelitian ini adalah 105 orang ibu bekerja di sektor formal yang telah memiliki anak, memiliki usia perkawinan minimal 2 tahun. Hasil penelitian memperlihatkan bahwa tiga aspek adult attachment berkorelasi dengan kepuasan pernikahan. Secure attachment memiliki korelasi positif secara signifikan dengan kepuasan pernikahan, sementara itu avoidant attachment dan ambivalent attachment memiliki korelasi secara negatif dengan kepuasan pernikahan.
PERSEPSI SENSE OF HUMOR DOSEN DAN MOTIVASI BELAJAR PADA MAHASISWA FAKULTAS PSIKOLOGI UNIVERSITAS X
Authors: Sulistiyadi Tsanas Nabillah , Mulyani Indah
Published: March 2020

Motivasi belajar sangat penting dimiliki oleh semua mahasiswa untuk menunjang prestasi akademik. Berdasarkan hasil wawancara dengan tiga orang mahasiswa diketahui bahwa motivasi belajar yang meningkat dapat membuat mahasiswa betah berada di kelas dan membuat mahasiswa lebih fokus serta bersemangat saat menerima mata kuliah yang di sampaikan oleh dosen yang bersangkutan. Ada banyak cara untuk meningkatkan motivasi belajar seseorang agar bisa meningkat, salah satunya berasal dari dosen yang mengajar mahasiswa. Mahasiswa menginginkan dosen yang saat sedang mengajar memasukkan humor, sehingga bisa menjadi suatu cara untuk mencairkan suasana atau bisa membuat suasana agar tidak terlalu tegang. Tujuan dari penelitian ini adalah untuk menguji secara empirik hubungan persepsi sense of humor dosen dengan motivasi belajar pada mahasiswa. Berdasarkan hasil analisis terhadap 238 responden yang didapatkan melalui teknik incidental sampling, diketahui bahwa hipotesis yang diajukan dalam penelitian ini diterima dengan nilai sangat signifikansi sebesar 0.000 (p < .01). Pada penelitian ini juga menunjukkan bahwa terdapat hubungan yang positif antara persepsi sense of humor dosen dengan motivasi belajar pada mahasiswa hal ini terlihat pada hasil pearson correlation sebesar 0.235.
GAYA KEPEMIMPINAN TRANSFORMASIONAL DAN KEPUASAN KERJA PADA PEKERJA BUMN
Authors: Iskandar Yan , Andriani Inge
Published: March 2020

Penelitian ini bertujuan untuk menguji secara empiris pengaruh gaya kepemimpinan transformasional terhadap kepuasan kerja pada pekerja BUMN. Peneliti menggunakan alat ukur berupa skala Job Satisfaction Scale(JSS) dan skala gaya kepemimpinan transformasional. Responden pada penelitian ini terdiri dari 100 pekerja BUMN berstatus pekerja tetap. Teknik sampling yang dilakukan adalah purposive sampling. Teknik analisis data pada penelitian ini dilakukan melalui uji secara kuantitatif dengan metode statistik regresi linear sederhana. Hasil yang didapatkan dari penelitian ini adalah nilainilai R Square sebesar 0.224 (p < .01). Hasil tersebut memiliki arti bahwa terdapat pengaruh gaya kepemimpinan transformasional yang sangat signifikan terhadap kepuasan kerja pada pekerja BUMN. Besar pengaruh gaya kepemimpinan transformasional terhadap kepuasan kerja pada pekerja BUMN sebesar 22.4% dengan sisanya 77.6% merupakan faktor-faktor lain yang mempengaruhi kepuasan kerja yang tidak termasuk dalam analisis dalam penelitian yaitu faktor fisiologis, faktor psikologis, faktor sosial, dan faktor jaminan.
REGULASI DIRI DAN IMPULSIVE BUYING TERHADAP PRODUK FASHION PADA REMAJA PEREMPUAN YANG BERBELANJA ONLINE
Authors: Siregar Nada Fitria , Rini Quroyzhin Kartika
Published: March 2020

Penelitian ini bertujuan untuk menguji hubungan antara regulasi diri dan impulsive buying terhadap produk fashion pada remaja perempuan yang berbelanja online. Responden penelitian ini adalah 100 orang remaja perempuan dengan rentang usia 18-21 tahun. Untuk mengukur impulsive buying dan regulasi diri, peneliti menggunakan skala Impulsive Buying dan SSQR (Short Self-Regulation Questionnaire). Hasil analisis dengan menggunakan Pearson’s Product Moment Correlation menunjukkan korelasi r = -0.721 (p < .01). Hal ini menunjukkan bahwa ada hubungan negatif yang signifikan antara regulasi diri dan impulsive buying terhadap produk fashion pada remaja perempuan yang berbelanja online yang mengartikan bahwa semakin tinggi regulasi diri pada remaja maka semakin rendah remaja melakukan pembelian impulsif. Hal ini menyatakan bahwa regulasi diri memiliki peranan yang penting bagi remaja dalam menentukan perilakunya, salah satunya adalah dalam hal pembelian.
PROTOTIPE SISTEM PARKIR KENDARAAN DENGAN RFID BERBASIS ARDUINO UNO R3
Authors: Wijaya Edo , Yakti Bayu Kumoro
Published: March 2020

Saat ini sistem parkir merupakan hal terpenting dalam kehidupan sehari-hari. Sistem parkir yang semakin modern, khususnya tempat parkir kendaraan mendorong manusia untuk berpikir bagaimana cara supaya sistem parkir efisien dan efektif. Pada penelitian ini dibuat prototipe sistem parkir kendaraan berbasis Arduino Uno dengan Radio Frequency Identification (RFID). Sistem parkir dibuat dengan metode membuka dan menutup portal pintu keluar kendaraan menggunakan RFID. Alat ini terdiri dari sebuah Arduino Uno dan komponen-komponen pendukungnya. Cara kerja sistem parkir kendaraan ini yaitu langkah pertama pada pintu masuk untuk sensor modul infrared akan dilewati oleh kendaraan maka motor servo akan aktif yang berfungsi sebagai indikator untuk membuka dan menutup portal pintu masuk ataupun pintu keluar kendaraan area parkir. Hasil pengujian menunjukkan bahwa jika kendaraan mau keluar maka RFID tag yang dimasukkan benar maka akses diterima motor servo aktif dan LCD menampilkan kapasitas area parkir tersebut. Jika RFID tag tidak terdaftar maka motor servo tidak aktif.
PURWARUPA ALAT PENDETEKSI DETAK JANTUNG BERBASIS ATMEGA328
Authors: Ambary Ilham Muarif , Raharja Wahyu Kusuma
Published: March 2020

Jantung merupakan organ paling penting dalam tubuh manusia yang berfungsi untuk memompa darah ke seluruh tubuh. Berdasarkan pada kondisi tersebut kesehatan jantung manusia harus benar-benar diperhatikan. Salah satu cara untuk mengetahui kondisi kesehatan jantung adalah dengan mengetahui detak jantung per menit. Pada penelitian ini dibuat suatu purwarupa alat pendeteksi detak jantung. Purwarupa alat pendeteksi jantung ini berbasis ATmega328. Sensor yang digunakan adalah sensor pulse yang berfungsi untuk mengukur dan mendeteksi denyut jantung yang dihasilkan jantung. Selain itu digunakan mikrokontroler ATmega328 arduino pro mini yang akan mengolah sinyal yang masuk dan menampilkan data detak jantung per menit pada layar OLED. Berdasarkan pengujian yang telah dilakukan terhadap 10 responden, purwarupa alat pendeteksi jantung ini memiliki kesalahan relatif rata-rata 0.32% yang dibandingkan dengan Pulse Oxymeter Elitech Mobile Fox 1. Berdasarkan pada kedua pengujian presisi, pengujian jari responden mempunyai rata-rata nilai RSD 1.48% sedangkan setiap jari tangan kanan dan kiri responden, memiliki nilai rata-rata masing-masing RSD 2.86% dan 5.02%.
APLIKASI PENGUKURAN TINGKAT KEMIRIPAN OBJEK MENGGUNAKAN MODIFIED HAUSDORFF DISTANCE BERDASARKAN HASIL DETEKSI TEPI
Authors: Reskia Silvina , Sundani Dini
Published: March 2020

Pengolahan citra mengalami perkembangan yang begitu pesat yang ditandai dengan banyaknya citra yang disajikan dalam berbagai bidang seperti bidang kedokteran, industri pertanian, geologi, dan kelautan. Banyaknya citra yang tersaji seringkali pengguna mengalami kesulitan pada saat proses pengambilan atau pengklasifikasian citra berdasarkan kemiripan citra. Penilaian kemiripan citra dapat diukur berdasarkan perbedaaan jarak tepi (Euclidean distance) atau jarak warna (distance metric). Pada penelitian ini dikembangkan aplikasi pengukuran tingkat kemiripan objek citra menggunakan metode modified Hausdorff distance. Nilai kemiripan yang dihasilkan pada proses pengukuran tingkat kemiripan objek menggunakan metode modified Hausdorff distance berupa bilangan desimal. Jika nilai proses mendekati 0 atau sama dengan 0 maka citra dianggap mirip. Implementasi dilakukan menggunakan tiga jenis objek citra dengan masing-masing jenis objek citra memiliki 7 objek citra sehingga keseluruhan objek sebanyak 21 objek citra dengan format JPG dan PNG yang tidak memiliki latar belakang. Tampilan aplikasi ini dibuat menggunakan Graphic User Interface (GUI). Pengujian keakuratan dari aplikasi diukur menggunakan metode efektifitas dengan menghitung perbandingan antara nilai dari aplikasi (AVVR) terhadap nilai responden (IAVVR). Hasil pengujian menunjukkan bahwa aplikasi yang dibuat memiliki nilai keakuratan mendekati 1, artinya aplikasi dianggap mirip dengan penilaian mata manusia.
IMPLEMENTASI DEEP LEARNING MENGGUNAKAN FRAMEWORK TENSORFLOW DENGAN METODE FASTER REGIONAL CONVOLUTIONAL NEURAL NETWORK UNTUK PENDETEKSIAN JERAWAT
Authors: Hasma Yunita Aulia , Silfianti Widya
Published: March 2020

Jerawat sering dialami oleh kaum wanita maupun pria dari usia remaja hingga dewasa. Banyak rumah sakit dan klinik kecantikan yang dapat di datangi oleh para penderita untuk memeriksakan jerawat tersebut. Penelitian ini merupakan implementasi dari pendeteksian jerawat menggunakan image processing dan secara realtime, lalu sistem akan mengklasifikasikan jerawat yang ada pada wajah. Jerawat yang dapat dikenali oleh sistem ini yaitu jerawat, bekas, dan pus. Sistem deteksi dan klasifikasi ini dibuat dengan metode deep learning dengan menggunakan bahasa pemrograman Python, yang dibantu dengan menggunakan framework TensorFlow dengan model Faster R-CNN. Sistem ini hanya dapat berjalan di laptop dengan memiliki Python versi 3.6 di dalamnya dan telah memliki library Numpy, TkInter, Matplotlib, dan OpenCV dan juga memiliki kamera pada laptop yang digunakan agar dapat menjalankan sistem secara realtime yang didukung dengan GPU yang memadai. Perancangan alur aplikasi menggunakan flowchart diagram. Hasil uji terhadap sistem menggunakan perbandingan objek yang terdeteksi dengan yang seharusnya lalu dibagi dan dikalikan dengan seratus persen. Hasil yang didapat dari pengujian cukup baik menggunakan metode deep learning.
PROTOTIPE SISTEM PERINGATAN DINI BANJIR BERBASIS PLC OMRON DAN ARDUINO UNO SEBAGAI SMS GATEAWAY
Authors: Hernowo Arif , Setiyono  , Prayogo Sandy Suryo
Published: March 2020

Banjir merupakan permasalahan yang terjadi akibat dari volume air yang berlebih pada sungai yang dipengaruhi oleh aktifitas manusia yang tidak ramah terhadap lingkungan. Banjir memiliki dampak negatif yang cukup banyak salah satunya adalah rusaknya sarana dan prasarana masyarakat. Kesiagaan masyarakat cukup penting diperlukan untuk mengurangi dampak negatif dari banjir tersebut. Salah satu solusi yang dapat dilakukan adalah dengan merancang suatu sistem simulasi peringatan dini banjir sebagai alat dalam mendetaksi ketinggian air sebelum terjadi datangnya bahaya banjir. Penelitian ini bertujuan untuk membuat prototipe sistem peringatan dini bencana banjir yang mudah dioperasikan dan efektif untuk mendeteksi datangnya banjir. Pada protipe terdapat sensor level switch yang mampu mendeteksi pergerakan tinggi permukaan air pada daerah aliran sungai. Data hasil pengukuran tersebut akan diolah menggunakan PLC Omron sebagai pusat pengolahan data. Hasil olah data selanjutnya dikirim ke Arduino Uno untuk mengirim pesan kepada pengguna menggunakan modul GSM SIM800L V.2. Jika permukaan air mencapai ketinggian yang telah ditentukan, maka alarm buzzer berbunyi dan lampu LED menyala. Hasil pengujian menunjukkan bahwa respon sensor banjir dengan alarm peringatan sangat cepat yaitu kurang dari 3 detik. Waktu pesan SMS hingga sampai pada ponsel penerima relatif cepat yaitu dibawah 15 detik.
PENGARUH KOMPOSISI CU TERHADAP SIFAT MEKANIK DAN STUKTUR MIKRO DARI PENGECORAN AL-SI
Authors: Anderson Willy , Rudianto Haris , Haryadi Deni
Published: March 2020

Aluminium (Al) merupakan logam ringan, mempunyai ketahanan korosi yang baik dan hantaran listrik yang baik dan sifat-sifat baik lainnya sebagai sifat logam, selain itu aluminium juga mempunyai sifat mampu membentuk (machinability). Tembaga (Cu) ditambahkan untuk meningkatkan kekuatan material tersebut, makin tinggi kadar tembaga maka makin banyak fasa yang terbentuk, sehingga kekerasan dan kekuatan paduan akan meningkat. Selain itu, peningkatan komposisi tembaga di dalam paduan Al-Si-Cu dapat juga meningkatkan sifat ketahanan korosi dan sifat ketahanan aus. Penelitian ini bertujuan untuk mengetahui pengaruh komposisi tembaga terhadap sifat mekanik dan struktur mikro dari pengecoran Al-Si. Hasil uji hardness rockwell menunjukkan bahwa semakin banyak unsur Cu yang ditambahkan pada paduan Al-Si maka semakin besar nilai kekerasan dan kekuatan paduan. Hasil pengujian impact charpy didapat nilai impact pada sampel 1 yaitu 0,0307 J/mm2 dan sampel 2 yaitu 0,0129 J/mm2. Hasil pengujian tensile kekuatan tarik sampel 1 yaitu 93.50 N/mm2, sampel 2 yaitu 39.39 N/mm2, dan sampel 3 yaitu 33.60 N/mm2.
APLIKASI SIMULASI EVAKUASI GEMPA DAN KEBAKARAN DENGAN TEKNIK VIRTUAL REALITY BERBASIS ANDROID
Authors: Arrahman Alfan Fadhila , Lestari Dewi Putrie
Published: March 2020

Gempa dan kebakaran yang terjadi di dalam gedung merupakan gangguan serius dan dapat menyebabkan banyak korban jiwa jika tidak mengetahui metode penyelamatan diri. Salah satu cara memberikan informasi penyelamatan diri yang menarik yaitu melalui simulasi Virtual Reality (VR). Pada penelitian ini dibuat aplikasi simulasi evakuasi gempa dan kebakaran dengan teknik Virtual Reality berbasis Android dengan nama aplikasi virtual reality RITB (Recsue in The Building). Aplikasi RITB dibuat menggunakan Unity 2017.4.3f1 dan algoritma Collision Detection yang melakukan pendeteksian tabrakan antar objek, sehingga objek dapat bereaksi dan tidak hanya menembus satu sama lain. Simulasi 3D berbasis VR yang dihasilkan memberikan kesan immersion atau pengguna dapat merasakan ada di sebuah lingkungan nyata meskipun sesungguhnya fiktif. Aplikasi virtual reality RITB hanya bisa dijalankan pada ponsel Android yang memiliki sensor Gyroscope dan teknologi Bluetooth. Selain itu, aplikasi virtual reality RITB hanya dapat dinikmati dengan menggunakan VR headset dan bluetooth controller. Berdasarkan uji coba aplikasi menggunakan metode blackbox testing diperoleh hasil bahwa semua fungsi pada button berjalan sesuai dengan rancangan aplikasi. Spesifikasi minimum untuk menjalankan aplikasi virtual reality RITB adalah smartphone yang memiliki OS Android v4.4 Kitkat dan mempunyai RAM minimal 2 GB. Semakin tinggi spesifikasi smartphone yang digunakan semakin baik performa aplikasi yang dihasilkan.
KESEIMBANGAN LINI PERAKITAN PRODUK IRON TIPE HD-1172 MENGGUNAKAN METODE HEURISTIK PADA LINE MAIN ASSY IRON DI PT. SELARAS CITRA NUSANTARA PERKASA
Authors: Andi Muhamad , Nasution Syarifuddin
Published: March 2020

Perusahaan yang ingin meningkatkan produktivitas sering mengalami kendala pada proses perakitan. Kendala yang sering dialami pada proses perakitan yaitu beban kerja yang tidak merata disetiap stasiun kerja dan waktu menganggur yang tinggi. Pada penelitian ini dilakukan penyeimbangan lini produksi menggunakan metode heuristik pada line main assy iron di PT. Selaras Citra Nusantara Perkasa. Hasil identifikasi menggunakan metode Ranked Positional Weight didapatkan jumlah stasiun kerja menjadi 9 stasiun kerja dengan 9 orang operator. Nilai efisiensi lintasan sebesar 98% dan nilai balance delay sebesar 2% serta nilai smoothness index sebesar 5,58. Hasil metode Kilbridge Wester didapatkan jumlah stasiun kerja menjadi 8 stasiun kerja dengan 8 orang operator. Nilai efisiensi lintasan sebesar 99% dan nilai balance delay sebesar 1% serta nilai smoothness index sebesar 6,21. Hasil metode Largest Candidate Rule didapatkan jumlah stasiun kerja menjadi 9 stasiun kerja dengan 9 orang operator. Nilai efisiensi lintasan sebesar 98% dan nilai balance delay sebesar 2% serta nilai smoothness index sebesar 5,58. Pengolahan data berdasarkan ketiga metode tersebut dapat dikatakan sangat baik. Terdapat hasil yang sama dari metode ranked positional weight dan metode largest candidate rule yaitu nilai efisiensi lintasan, balance delay dan smoothness index yang masing-masing memiliki nilai sebesar 98%, 2% dan 5,58.
Behaviour of Different Nanomaterials in Geopolymer Concrete
Authors:   Research Scholar, Dept. Of Civil Engineering, Vel Tech Rangarajan Dr Sagunthala R&D Institute Of Science And Technology, Chennai, Kumar Mr. M. Manoj , Yuvaraj Dr. S. ,   Associate Professor, Dept. Of Civil Engineering, Vel Tech Rangarajan Dr Sagunthala R&D Institute Of Science And Technology, Chennai
Published: March 2020

In stock, because of the low carbon dioxide radiation, geopolymers are very important worldwide as a building material, unlike Portland cement. Today, nanotechnology is an indispensable feature in the field of building management. It has observed that several nanomaterials influence various properties of cement-based concrete. Fly ash-based geopolymer- concrete is an option for cement-based concrete, and nanoparticles change the properties of geopolymers. Nanomaterials, such as CNTs, nano-silica, and graphene, combined with gene polymer mortars, significantly improve their properties. NanoTiO2, when found, acts as a photocatalyst. Particularly nanomaterials such as nano-silver act as anti-bacterial agents. The functions of several nanomaterials have been studied and discussed to change the properties of geo-polymer concrete and mortars.
Improved Data Hiding Scheme using VQ based Index Map Compression and Codebook Extension
Authors:   Research Scholar, Department of Computer Science, Mother Teresa Women’s University, Kodaikanal, India., Uma* P. , Vimala S. ,   Associate Professor, Department of Computer Science, Mother Teresa Women’s University, Kodaikanal, India.
Published: March 2020

Now-a-days, data protection has become inevitable for confidential transactions that happen over net. Transmission of such confidential data has become a challenging issue in today’s scenario. Many Data Hiding techniques are used for transmitting data in a secured way. The secret data can be hidden as part of any type of file such as Text file, Sound file, image file, Video file, etc. It has been proposed to hide secret data as part of cover image. The proposed work adopts Vector Quantization (VQ) which is one of the powerful and simple image compression techniques to compress the size of the cover image and to reduce the cost associated with storage/transmission. VQ transforms the cover image into its corresponding Codebook and IndexMap. The confidential data is then embedded as part of the Codebook and IndexMap. The proposed method helps in improving the performance by increasing the embedding capacity and coding efficiency. The performance of Steganography is improved in three levels. The embedding capacity of the proposed method is increased by 23,726 bits when compared to that of existing similar methods, which is a significant improvement.
Influence of Various Temperatures on the Drying Time of 220/66 KV Transformer Insulations in Vapour Phase Drying Process
Authors:   Department of Mechanical Engineering, PES College of Engineering, Aurangabad, India., Siddiqui* Mohd. Tareq , Pattiwar Dr. Jayant T. ,   Department of Engineering & Technology, Dr. BAM University, Aurangabad, India. Email: jayantpattiwar@gmail.com Dr. Avinash P. Paranjape, Department of Electrical Engineering, Govt. Engineeirng College, Aurangabad, India., Keche Dr. Ashok J. ,   Department of Mechanical Engineering, MIT College, Aurangabad, India.
Published: March 2020

Cellulose based insulation in the form of different papers and pressboard play a vital role in transformer manufacturing as very high level of voltages are encountered during transformer operation. Cellulose being hygroscopic in nature contains 8-10% moisture by weight. The life of a transformer is critically dependant on the state of cellulose insulation so much so that, paper with 1.5% moisture content ages 10 times faster than with only 0.3% moisture. For obvious reasons, it is very important that the moisture is removed from transformer insulation. As of today, the latest technology available for this moisture extraction is the vapour phase drying process. This paper evaluates the influence of temperatures at various locations on the drying time of two 220kv transformer insulations in vapour phase drying process.
Design of Semi Automatic Coconut Dehusker for Small Scale F armers
Authors:   Professor, Head of the Department, Electrical and Electronics Engineering, Kongu Engineering College, Erode, India., Nattadurai* Senthilnathan , Sengottiyan Gomathy ,   Professor, Electrical and Electronics Engineering, Kongu Engineering College, Erode, India., Saravanan Somesh ,   Final year , Electrical and Electronics Engineering, Kongu Engineering College, Erode, India., Anandaramn Santhosh Kumar ,   Final year, Electrical and Electronics Engineering, Kongu Engineering College, Erode, India., Rajagopal Rishikeshanan ,   Final year, Electrical and Electronics Engineering, Kongu Engineering College, Erode, India., Venkatachalam Bala ,   Final year, Electrical and Electronics Engineering, Kongu Engineering College, Erode, India.
Published: March 2020

The removal of shells of coconut and nut has been a problem for lots of years. Foot-operated and hand-operated systems are very in-efficient and in countries like India where large coconut farms are available, it is difficult to employ manpower alone. Efficient methods are necessary for the de-husking of coconut. This paper proposes Double spiked roller arrangement over traditional Dehusking tools and the modern dehuskers. This method employs the use of Single-phase motors instead of conventional three-phase motors. It helps in the reduction of price. The Machine dimensions are designed after various Averages of Coconut dimensions and torque calculations of the Single Phase Induction motor. The machine makes use of the Gear shaft-Pulley powered Single Phase motor which powers the spiked rollers. The rollers dehusk the coconut which when placed on it. It also possesses an adjustable base frame which helps in changing the speed and adjustment of the position of the motor in case Electrical speed varying methods are not available. This machine is extremely useful for small scale farmers because it’s a very low cost, high operating efficiency.
Air Quality i n Buraydah, Saudi Arabia
Authors:   Mechanical Department, College of Engineering, Buraidah 51452, Qassim University, Saudi Arabia., Alaboodi* Abdulaziz S. , Alshitawi Mohammad S. ,   Mechanical Department, College of Engineering, Buraidah 51452, Qassim University, Saudi Arabia., Omar Ayman F. ,   department, Plant Production and Protection Department, College of Agriculture, Buraidah 51452, Qassim University, Saudi Arabia., Alharby Abdulaziz B. ,   Plant Production and Protection Department, College of Agriculture, Buraidah, Qassim University, Saudi Arabia.
Published: March 2020

Exposure to outdoor and indoor air particles (also known as particulate matter or PM) has attracted the interest of the scientific researchers around the world, this is because of the adverse health effects that particles have on the human. Smaller fractions of particulate matter (repairable range, ≤10 μm) give the greatest health problem, because they have the ability to reach deeper parts of the human respiratory system. Many countries have paid attention to the air pollution and made regulations to improve their indoor and outdoor air quality, Saudi Arabia, particularly Qassim region, has not given much attention to the problem of air contaminants in the ambient and indoor environments. In addition, ambient environmental parameters will be recorded. The results obtained from the indoor and outdoor measurements will help us to evaluate the air quality in Buraydah city for different seasons in the indoor and outdoor environments.
Newspaper Article Classification using Machine Learning Techniques
Authors:   Department of CSE, MGIT, JNTUH, Hyderabad, India., Devi* J. Sree , Bai Dr M Rama ,   Department of CSE, MGIT, JNTUH, Hyderabad, India., Reddy Chandrashekar ,   Department of CSE, MGIT, JNTUH, Hyderabad, India.
Published: March 2020

Newspaper articles offer us insights on several news. They can be one of many categories like sports, politics, Science and Technology etc. Text classification is a need of the day as large uncategorized data is the problem everywhere. Through this study, We intend to compare several algorithms along with data preprocessing approaches to classify the newspaper articles into their respective categories. Convolutional Neural Networks(CNN) is a deep learning approach which is currently a strong competitor to other classification algorithms like SVM, Naive Bayes and KNN. We hence intend to implement Convolutional Neural Networks - a deep learning approach to classify our newspaper articles, develop an understanding of all the algorithms implemented and compare their results. We also attempt to compare the training time, prediction time and accuracies of all the algorithms.
Inlet Swirl and Dump Gap Effect on Static Pressure Recov ery in Dump Diffuser Combustor u sing Two Equation Turbulence Model
Authors:   School of Mechanical Engineering, KIIT University, Bhubaneswar, India., Sahu* Ajay Kumar , Ghose* Dr. Prakash ,   School of Mechanical Engineering, KIIT University, Bubaneswar, India.
Published: March 2020

Cold flow through an axi-symmetric dump diffuser, provided with a swirl effect at inlet is studied by using various two equation k-ε turbulent models such as; standard k-ε, RNG k- ε and Realizable k-ε model. There is a liner with a liner dome head of hemispherical in shape is used as a bluff body. From the comparison in between the three k-e turbulent models, it has been observed that the overall prediction of flow variables with Realizable k-e model are much better than others. The effects of dump gap and inlet swirl on velocity distribution and pressure variation on liner and casing walls have been investigated. The static pressure recovery within the diffuser is evaluated from area weighted average pressure at inlet and exit plane. It is noticed that an optimum inlet swirl results in the most effective pressure recovery due to the minimum irrecoverable energy dissipation in the vortices formed in the domain. The optimum swirl number is found to be 0.38 and it occurs when DG (non-dimensional dump gap) is kept as 1.0. The variation in dump gap changes the flow pattern and the possible pressure recovery. As the dump gap is increased, the static pressure is recovered more effectively with moderate swirl level in the inlet flow.