bluuebunny/crossref_metadata_2025 huggingface dataset:
Accuracy of a Dual Test for Detection of HIV1 and Syphilis at an Urban Hospital in Kampala- A cross-sectional study
Authors: J Walusimbi
Published: September 2022

Background: Dual rapid point of care test kits for multiple infections such as HIV and syphilis can greatly improve the screening and detection of such infections in vulnerable groups. Methodology: A cross sectional study was conducted at St. Francis Hospital Nsambya ante natal clinic between 16th March and 3rd May 2015. All pregnant women attending the clinic for the first time were screened and eligible participants enrolled in the study after informed consent. Data was collected using structured questionnaire; whole blood was collected from participants by venapuncture. Data was entered into Epi data version 3.1 analysed with IBM SPSS version 16. Results: A total of 549 were screened for the study and 476 (86.7%) were tested for HIV and syphilis. Fifty two had already tested for HIV and syphilis and 21 left the clinic without being tested. Of those tested 9 had inconsistent data and 5 did not have confirmatory results due to mis- identification. Only 462 (84%) results were available for analysis. The sensitivity and specificity for ASTEL HIV and syphilis was 79% and 77% respectively. The PPV and NPV for ASTEL kit for HIV and Syphilis was 99%, 92 and 99, 93% respectively. The sensitivity /specificity/PPV and NPV for Determine HIV were 74%/100%/99% and 89% 38%/98%/96% and 92% for syphilis. The prevalence of HIV in the study was 4%, C.I 2-6% while that of syphilis was 6 %, C.I 4-8%. Conclusion: The sensitivity of the ASTEL kit for HIV and syphilis was lower than that given by the manufacturers and other laboratory based studies but was better than that of the routine Determine tests. The low prevalence of HIV and syphilis in this study population may have resulted in a higher proportion of false negatives hence affecting the positive and negative predictive values
Gestational Trophoblastic Neoplasia
Authors: S Wanjari
Published: September 2022

Introduction: Gestational trophoblastic neoplasia (GTN) account for less than 1% of cancers of the female reproductive system. Nearly 50% of gestational choriocarcinomas are seen after molar pregnancies. About 25% after abortions or ectopic pregnancy and another 25% after a normal pregnancy. FIGO staging and prognostic scoring index of modified WHO classification is used. Serum β-HCG assay is an important factor in the diagnosis and management of GTN. It is a sensitive tumour marker for GTN and its level is directly related to the number of viable tumour cells. Serial measurement of β-hCG levels is useful for follow-up of women diagnosed with complete or partial mole. An increasing level or plateauing of serum β-hCG is diagnostic of invasive disease which can be invasive mole or choriocarcinoma. Case Report: Patient A-was a 22 year old lady, para1, two year old child which was a normal delivery. She was asymptomatic and reported to the hospital for missed periods. Urine pregnancy test was positive. Ultrasound scan did not find any pregnancy. Beta HCG levels were very high. Then MRI was done which showed no abnormality, other than a bulky uterus. Curettage was done and the report came as trophoblastic tissue seen with possibility of choriocarcinoma. This patient was given 2 cycles of methotrexate with folinic acid after which the patient was lost to follow up. Patient B-was a 27 year old lady, para1, three year old child delivered by caesarean section. She also gave history of two subsequent abortions. She presented with menorrhagia and on examination a cervical polyp was detected. The polyp was resected and sent for histo-pathology and the report suggested choriocarcinoma. Her beta HCG was 30,000. This patient was given three cycles of multi-agent chemotherapy, MAC (Methotrexate, Actinomycin-D and Cyclophosphamide) regime and responded to treatment. Discussion: The main stay of treatment is chemotherapy. Mostly single agent chemotherapy is used methotrexate being the drug of choice. Methotrexate in the dose of 0.4 mg/kg IM or IV daily for 5 days, appears to be the most effective treatment protocol. Another widely used regimen is using folinic acid along with methotrexate. Some of the more commonly used multiagent chemotherapy combinations are – MAC, EMA-CO, EMA-EP, VBP and BEP. Conclusion: GTN can be treated with appropriate chemotherapy and supportive management, after correct staging and scoring of the disease. They are also the most curable of all cancers in women.
Obstetric Ultrasound in Context of Coronavirus Pandemic
Authors: M Uriel
Published: September 2022

Background: Obstetric ultrasound has become in an essential exam in the prenatal care that could be affected by the changes resulting from currently coronavirus pandemic. Objective: To examine the available evidence regarding the recommendations about obstetric ultrasound scan to prevent deterioration in the quality of antenatal care in the context of SARS-CoV-2. Methods: Literature search of PubMed. Results and Conclusions: Enough works have demonstrated that the routine ultrasound scan helps to evaluate fetal growth and health, detect congenital anomalies, perform screening of maternal and fetal diseases, diagnose altered placental implantation and classify multiple gestation and its complications, improving maternal and perinatal outcomes. This pandemic is an exceptional situation where every relationship could be affected, but the prenatal care should not be deteriorated. As health practitioners, we have to provide safety and efficient in the evaluations of the obstetric patients.
What about the Intradiverticular Bladder Tumours at Ibn Rochd University Hospital?
Authors: TAC Dibingue
Published: September 2022

Introduction: Bladder diverticula are urothelium herniations that pass through the bladder muscle. The perivesical fat is in direct contact with the urotheliumdiverticularis. As a result, tumours developing from the urotheliumdiverticularis have a distinct evolutionary history from classical bladder tumours and are rarely linked with a bad prognosis. Objective: To assess the management of intraverticular bladder tumours. Material and Methods: This is a retrospective study on intradiverticular bladder tumours from January 2012 to December 2017 (i.e. 6 years) at the urology department of Casablanca’s UH Ibn Rochd. The study included all patients with an intradiverticular bladder tumour and a complete file. Results: The mean age was 63.75 years (with extremes of 44 and 88 years) and the The delay between the onset of symptoms and the consultation was 12.83 months. In all cases, hematuria was the most common symptom for consultation. Smoking (66.66 percent) and recurrent urethritis were identified as two risk factors (16.67 percent). In 50% of the patients, ultrasound revealed a diverticulum with tumour material, and CT scans revealed a tumorous diverticulum in 6 cases. Urothelial carcinoma was the most frequent histological type (83.33 percent), followed by squamous cell carcinoma (16.67 percent). After surgery, the pT3 grade was the most prevalent. In three and nine cases, surgery was conservative and radical, respectively. After three years of follow-up, the majority of patients had a favourable outcome with no recurrence. Conclusion: Intraverticular bladder tumours differed from classical bladder tumours in that they had a higher frequency of T3a tumours and non-urothelial carcinomas, as well as a risk of underestimated extension and tumour multifocality. In the majority of cases, their prognosis is bleak.
Penile Tri-Tubular Fracture: A Case of Partial Urethral Ruptur With Bilateral Corpora Cavernosa Fractures
Authors: M Alafifi
Published: September 2022

Penile fracture generally manifests as a solitary rupture of the tunica albuginea in one of the two corpora cavernosa; urethral rupture is an extremely unusual complication. A tri-tubular penile fracture can occur when the erect penis is exposed to highenergy trauma. Although its diagnosis is frequently clinical, ultrasonography can assist confirm the diagnosis and pinpoint the site of the lesion. We report a case of a patient who had a tri-tubular penile fracture (bilateral corporal cavernosa injury and partial urethral ruptur). After a six-month follow-up, the patient urinated normally and had a satisfactory erection.
Primary Malignant Melanoma of the Female Urethra, A Rare Histologic Pathology Subtype and Poor Prognosis: Case Report
Authors: C Gosrisirikul
Published: September 2022

Introduction: Primary malignant melanoma of the genitourinary tract is extremely rare. The recommendations for management of this cancer still undefined due to paucity of literature. We report a case of primary malignant urethral melanoma developed in an elderly female patient. Presentation of case: 72 years old Thai female presented with palpable urethral mass with contact bleeding. On physical examination, there were no suspicious lesions on her skin. On external genital examination, a lesion at urethral meatus was observed and biopsied by rural doctor. The pathological diagnosis was malignant melanoma of urethra. Discussion: Despite major surgery, radiotherapy or immunotherapy malignant melanoma usually has a poor prognosis. We performed distal urethrectomy and followed up her clinical closely but unfortunately tumor recurrence in 15 months of the follow up. Conclusion: Primary malignant melanoma of female urethra is an extremely rare and poor prognosis. The histological and immunohistochemical findings can be helpful in making an accurate diagnosis.
Prevalence of Thrombocytopenia in Acute Kidney Injury Cases Associated Scrub Typhus
Authors: P Pati
Published: September 2022

Scrub typhus is a vector borne zoonotic disease producing varieties of clinical complications like acute encephalitis syndrome (AES), Acute respiratory distress syndrome (ARDS), multi organs dysfunction(MODS) and deaths also. Acute kidney injury (AKI) is one of the common clinical manifestations while progressing for MODS, where AKI has been found to be associated with thrombocytopenia .In this review a small effort has been made to throw light upon prevalence of thrombocytopenia in scrub typhus cases.
The Evolution of Penile Prosthesis in the Treatment of Erectile Dysfunction
Authors: BJ Pereira
Published: September 2022

The National Institutes of Health consensus on impotence has defined erectile dysfunction in 1993 as the persistent inability of male to achieve and/or maintain an erect penis to allow satisfactory sexual intercourse. This condition affects millions of men of any age, but its prevalence is closely associated with aging, and it is estimated that about fifty percent of men, aged 40-70, experience some degree of erectile dysfunction. Penile prosthesis has been part of the therapeutic alternatives of erectile dysfunction for several decades. However, in the ‘90s, with the arrival of type-5 phosphodiesterase inhibitors, the treatment of erectile dysfunction evolved significantly. This class of drugs, which is currently considered the first line of treatment, is ineffective in about 30% of patients whom continue to require more invasive treatments. Penile prosthesis has high satisfaction and efficacy rates in the management of erectile dysfunction, and they undergone through some evolutions in the past years. This article intent to underline the evolution of the penile prosthesis in the treatment of erectile dysfunction with their virtues and disadvantages.
Employer Health Plan Exclusions are a Barrier to Access of Penile Implants for Erectile Dysfunction
Authors: TC Hsieh
Published: September 2022

Introduction: Many commercial insurers and Medicare have published coverage policies detailing the medical necessity and accessibility of erectile dysfunction (ED) treatment, including implantable penile prosthesis (IPP). Approximately 61% of adults aged 18–64 years in the United States (US) receive health benefits via employer-sponsored health plans (ESHP) and 23% of employers reported medical benefit exclusion for sexual dysfunction treatment. Objective: To obtain nationwide US estimates of the proportions of patients denied IPP treatment due to ESHP exclusions (overall and by state, healthcare insurer, and labor sector industry). Methods: De-identified data from an industry IPP insurance benefit verification database from October 1, 2018 to December 31, 2021 were analyzed to evaluate ESHP-related barriers to IPP access. Results: Among 2,638 patients with commercial insurance and employer data, 34.0% were denied IPP treatment due to ESHP benefit exclusions. ESHPs in Washington (60.7%), Louisiana (55.4%), Arizona (46.6%), Nebraska (45.5%), Ohio (43.3%), and Georgia (43.1%) had the highest exclusion rates, whereas Iowa (19.0%), Alabama (18.9%), Maryland (17.3%), Rhode Island (13.0%), and New York (7.1%) had the lowest exclusion rates. Patients with Aetna insurance had the greatest proportion of exclusions (62.4%), followed by Cigna (61.0%), employer-owned health plans (47.2%), other commercial plans (41.8%), Anthem (37.3%), Blue Cross Blue Shield (BCBS) state plans (24.1%), United Healthcare (15.4%), and Humana (0.0%). The exclusion rate was highest for employees of the leisure and hospitality industry (51.9%), followed by religious organizations (50.0%), health care (40.5%), construction, mining, or agriculture (39.1%), education (38.9%), retail and wholesale trade (36.9%), manufacturing (36.7%), utilities (36.2%), professional and business services (35.4%), transportation (32.6%), finance and insurance (29.1%), labor union organizations (26.9%), and finally public, state, and government administration (25.1%). Conclusions: Despite insurance carrier medical policies, 34.0% of men with an ESHP are denied access to IPP ED treatment due to their ESHP benefit exclusions. ESHP exclusion rates varied geographically, by insurer, and by labor sector industry.
Unsupervised Classification for Illegal Building Monitoring
Authors: N Kranjcic
Published: September 2022

In 2013 the Ministry of Construction and Physical Planning has brought an act by which all illegally built objects must be legalized. To this date almost 75% legalization request has been solved. It is expected that by the end of 2019 all of the illegally built objects will be legalized. In order to prevent further construction of illegal objects the Ministry of Construction and Physical Planning is seeking a way to easily detect start of illegal construction. Since the Copernicus satellite images are available free of charge and with resolution of 10m it should be possible to detect mentioned objects. This paper will provide analysis of Copernicus Sentinel 2A imagery for such use based on unsupervised classification using machine learning. If such procedure results in satisfying accuracy it will be proposed model for automation of the process for monitoring the illegal building construction based on Sentinel 2A imagery.
Arsenic Removal Using a Simple Oxidation Device
Authors: M Takahashi
Published: September 2022

Arsenic exists widely in the environment, and a lot of arsenic pollution is found in the groundwater of South East Asia. In order to make arsenic free water, we made a simple device. The device is mainly composed of an iron containing oxidation tank, settling tank and sand filter. The arsenic in the water can be removed by iron oxidation which is caused by aeration. The device can remove about 98% of the arsenic in the water using less energy, and be maintenance free for a long period.
Modeling Tree Height, Crown Diameter, Volume and Carbon in Response to Diameter at Breast Height of Schima wallichii and Catanopsis indica: A Study from Midhills, Nepal
Authors: RA Mandal
Published: September 2022

The study regarding correlation between diameter at breast height (DBH) and other variables like height, crown diameter, volume and carbon of the tree species of Schima wallichii and Castonopsis indica was not done yet. Thus, this research was objectively carried out to assess the correlation between DBH and different parameters particularly height, crown diameter, volume and carbon stock. The study was centered on the mid hill region where natural Schima-Castonopsis forest is abundantly found. Total 360 nested sample plots were established having 12.62 m radius for tree, 5.58 m radius for pole, 2.78 m radius for Sapling, 1.76 m radius for seedling measurement. The DBH and height were measured of these tree species in the plots. Collected data was analyzed using Pearson correlation to show the relation of different characteristics of tree and equations were examined using ANOVA and t-test. The descriptive statistics mean ± standard error (SE) of DBH was 28.65±1.25 cm, standard deviation was 19.682, minimum value was 5.2 and maximum value was 161.5 of Castonopsis indica. Similarly, mean±standard error of DBH was 22±0.96 cm, standard deviation 10.254, minimum value was 5.5 and maximum value was 54.3 of Schima wallichii. Moreover, there was positive and strong correlation between DBH and height of Castonospsis Indica with R square value 0.71 and the equation was Y=7.1075ln(X)-9.4467 whereas, Y is the height of the tree and X is DBH. This correlation between DBH and height of Schima wallichii also showed positive and strong with R square value 0.81 and the equation was Y=7.9982ln(X)-11.277. Same correlation was found between DBH and crown diameter of Castanopsis Indica having equation Y=3.4335ln(X)-6.8637 whereas Y is the crown diameter of the tree and X is DBH. Moreover, similar correlation between DBH and volume was also found. Statistically, ANOVA and t-test showed that there was significant correlation between DBH and tree characteristics like height, crown diameter and volume at 95% confidence level. This research will be useful for the decision maker and scientific community to assess the volume and carbon measuring single variable i.e. only DBH.
Evaluating pregnancy reporting in Siaya Health and Demographic Surveillance System through record linkage with ANC clinics
Authors: Eilerts-Spinelli Hallie , Romero Prieto Julio , Ambia Julie , Khagayi Sammy , Kabudula Chodziwadziwa , Eaton Jeffrey W. , Reniers Georges
Published: September 2022

IntroductionHealth and Demographic Surveillance Systems (HDSS) are important sources of population health data in sub-Saharan Africa, but the recording of pregnancies, pregnancy outcomes, and early mortality is often incomplete.
ObjectiveThis study assessed HDSS pregnancy reporting completeness and identified predictors of unreported pregnancies that likely ended in adverse outcomes.
MethodsThe analysis utilized individually-linked HDSS and antenatal care (ANC) data from Siaya, Kenya for pregnancies in 2018-2020. We cross-checked ANC records with HDSS pregnancy registrations and outcomes. Pregnancies observed in the ANC that were missing reports in the HDSS despite a data collection round following the expected delivery date were identified as likely adverse outcomes, and we investigated the characteristics of such individuals. Clinical data were used to investigate the timing of HDSS pregnancy registration relative to care seeking and gestational age, and examine misclassification of miscarriages and stillbirths.
ResultsFrom an analytical sample of 2,475 pregnancies observed in the ANC registers, 46% had pregnancy registrations in the HDSS, and 89% had retrospectively reported pregnancy outcomes. 1% of registered pregnancies were missing outcomes, compared to 10% of those lacking registration. Registered pregnancies had higher rates of stillbirth and perinatal mortality than those lacking registration. In 77% of cases, women accessed ANC prior to registering the pregnancy in the HDSS. Half of reported miscarriages were misclassified stillbirths. We identified 141 unreported pregnancies that likely ended in adverse outcomes. Such cases were more common among those who visited ANC clinics during the first trimester, made fewer overall visits, were HIV-positive, and outside of formal union.
ConclusionsRecord linkage with ANC clinics revealed pregnancy underreporting in HDSS, resulting in biased measurement of perinatal mortality. Integrating records of ANC usage into routine data collection can augment HDSS pregnancy surveillance and improve monitoring of adverse pregnancy outcomes and early mortality.
Marketing, la mejor herramienta para que el emprendedor universitario tenga éxito en el mercado digital
Authors: Romo González Luis Enrique , Navarro Del Toro Guillermo José
Published: September 2022

El problema de los proyectos, en la mayoría de las ocasiones, no es su implementación; es convertirlos en emprendimientos capaces de ser generadores de empleos. El marketing es una herramienta mediante la cual todos aquellos proyectos escolares pueden convertirse en emprendimientos, tal y como sucedió con el proyecto que aquí se describe, ya que se logró, gracias a los docentes que se interesaron y dieron asesoría, convertir una idea en un emprendimiento que está teniendo muy buena aceptación entre los clientes. Aun cuando al inicio todo estaba en contra debido a la pandemia de covid-19, se pudo aprovechar la situación originada por esta, ya que muchos de los estragos que ha causado se relacionan con la alimentación y la falta de actividad física. Por ello, contando con el apoyo de especialistas de marketing del Centro Universitario de los Altos de la Universidad de Guadalajara, se pudo desarrollar My_Nutriólgo_Personal, un producto fácil de ser usado por nutriólogos, médicos, enfermeras, preparadores físicos y personas interesadas en la salud física. Sin duda, se debe considerar al marketing como una herramienta que debe tener todo estudiante universitario, de lo contrario, cuando concluya sus estudios, solo será un egresado, en lugar de un emprendedor capaz de generar trabajo para otros.
Health Belief Model of Jambi City Community Against Covid-19 Vaccination with Structural Equation Modeling (SEM) Method
Authors: Yurinanda Sherli , Multahadah Cut , Marisa Susi
Published: September 2022

The community's HBM (Health Belief Model) analysis of the COVID-19 vaccination needs to be done. This perceived threat assessment is based on perceived vulnerability and seriousness. Judgments to behave in response to perceived threats are also influenced by cues to action. Variables that cannot be explained directly or variables that require explanation from other variables are called latent variables. Latent variables consist of exogenous and endogenous variables. This study aims to analyze the public health belief model of the city of Jambi towards COVID-19 vaccination with the structural equation modeling (SEM) method. The results showed that the health belief model for COVID-19 vaccination in Jambi City, vaccination actions were significantly influenced by perceptions of benefits and barriers. Perceived benefits and barriers were significantly affected by perceived severity and seriousness and then perceived severity and seriousness were significantly influenced by cues to action. However, demographics including age, occupation, income and beliefs in this study did not significantly influence a person to vaccinate. The proposed model can be accepted based on the goodness of fit indicator
Comparison of Portfolio Mean-Variance Method with the Mean-Variance-Skewness-Kurtosis Method in Indonesia Stocks
Authors: Agustina Dina , Sari Devni Prima , Winanda Rara Sandhy , Hilmi Muhammad Rashif , Fakhriyana Dina
Published: September 2022

In this paper, we compare the optimal portfolio weight of mean-variance (MV) method with mean-variance-skewness-kurtosis (MVSK) method. MV is a method to get weight on a portfolio. This method can be developed into the method of MVSK with attention to the higher-order moment of return distribution; skewness and kurtosis. In determining the weight of portfolio is also important to consider the skewness and kurtosis of return distribution. This method of considering the aspect of skewness and kurtosis is called the MVSK method with the aim of maximizing the level of return and skewness and minimizing the risks and exceeding of kurtosis. The result indicate that the optimal portfolio return of all methods is MVSK method with minimize variance priority.
Development and Validation of RP-HPLC Analysis Method for Determination of Total Alkaloid Content of Soursop (Annona muricata L.) Leaf Extract
Authors: Setyaningrum Lindawati , Purwaningtyas Dyah , Puspaningtyas Ayik Rosita , Wigati Dyan , Usman Mohammad Rofik , Latifah Maasyitoh Sari
Published: September 2022

Soursop leaves contain alkaloids that have pharmacological effects. This study aims determine the total alkaloid content of soursop leaf ethanol extract using a validated HPLC method. Extraction was carried out by soxhletation followed by liquid-liquid extraction using chloroform. Optimizing HPLC conditions on the mobile phase, flow rate, concentration, and wavelength, further testing the validation of the analytical method. Optimizing HPLC conditions obtained optimal results at concentration of 500 ppm with a flow rate of 1.0 mL/min using acetonitrile: methanol: water (80:5:15) at wavelength of 272 nm. These results have met the validation requirements of analytical methods including System Suitability Test (UKS), selectivity, linearity with y = 2.01914x –219,97226, correlation coefficient value (r) = 0.9995, and Vx0 value 0.11201%. The limit of detection and quantization were 8,78525 ppm and 29,28418 ppm, respectively. The RSD percentage of the precision test is 1.0453%, and the accuracy test is obtained from the recovery of 98-102%. The result of determining the total alkaloid content  sample was 0.0862 ± 0.004 % (%w/w) of the entire alkaloid content (TALC) triple replication. This research concludes that the analytical method using the HPLC system for determining the total alkaloid content of the ethanolic extract of soursop leaves is validate
Simulasi Pengujian Kinerja Kendali Pitch Turbin Angin Berbasis Matlab Simulink
Authors: Nuryanti Nuryanti , Salam Abyanuddin , Julianto Adrian
Published: September 2022

Angin adalah salah satu sumber energi terbarukan yang memiliki potensi cukup besar untuk dimanfaatkan. Dalam pengoperasiannya turbin angin memiliki range kecepatan angin kerja yaitu cut-in dan cut-off. Kecepatan angin melebihi cut-off dapat membahayakan komponen penyusun turbin angin akibat lonjakan energi yang dihasilkan. Maka dari itu, diperlukan mekanisme pengaturan kecepatan turbin dengan kendali pitch angle. Untuk meminimalisir faktor kegagalan dalam penelitian, digunakanlah simulasi ujicoba untuk mendapatkan hasil yang terbaik sebelum direalisasikan. Perancangan sistem kendali pitch angle agar turbin dapat melakukan pengereman saat kecepatan angin melebihi batas cut-off turbin. Simulasi kendali pitch turbin angin berbasis matlab Simulinkdimana pergerakan mekanis nya dapat dianimasikan sehingga dapat ditinjau secara visual. Dengan menggunakan bilah tipe NACA 0015 dan panjangnya 40 cm disimulasikan pergerakan putaran beserta system kendalinya dengan menggunakan system fisik pneumatic dan system fisik elektrik. Hasil penelitian berupa rancangan konstruksi mekanik turbin angin yang disematkan mekanisme pengubah pitch angle menggunakan dua jenis aktuator yaitu silinder pneumatik dan motor stepper. Turbin angin harus dapat melakukan pengereman ketika kecepatan angin diatas 20 m/s serta kecepatan rotasi tidak diperbolehkan melebihi 40 RPM.  Dengan mengubah-ubah variable kecepatan angin dapat diketahui respon pengereman jika kecepatan di atas 20m/s. Pengujian lainnya yaitu jika menggunakan salah satu kecepatan angin yang dibuat konstan arah dan kecepatannya, dengan mengubah-ubah sudut serang  dari sudut -90o sampai +90o akan diperoleh kecepatan putar maksimal saat sudut bilah 15o. Dari simulasi ini didapatkan pula hasil respon pengereman dimana actuator pneumatic memiliki waktu respon  1.7 menit sedangkan actuator elektrik 2 menit, dengan demikian respon aktuator pneumatik lebih baik daripada aktuator elektrik.
Sistem Kendali dan Pemantauan Peralatan Navigasi Penerbangan Non Directional Beacon Tipe ND200S Menggunakan Nodemcu ESP8266 Berbasis Internet of Thing
Authors: Hasanah Uswatun , Wildan Muh , Tohazen Tohazen
Published: September 2022

Salah satu jenis alat navigasi penerbangan yaitu Non Directional Beacon (NDB). NDB beroperasi pada frekuensi rendah 175 KHz – 535 KHz yang berfungsi untuk memberikan informasi heading dan azimuth pesawat terhadap ground station NDB yang berada baik di dalam maupun di luar lingkungan bandara. NDB merk Nautel ND200S, baik pada konsol maupun monitoring masih bersifat analog dan manual, sehingga butuh akses langsung ke lokasi untuk melakukan monitoring parameter. Selain itu tidak terdapat alarm yang bersifat remote apabila terjadi gangguan pada peralatan. Dengan menerapkan karakteristik industri 4.0 berbasis industrial Internet of Things (IoT), maka dirancang system kendali dan pemantauan dengan mengadopsi sistem tersebut menggunakan mikrokontroller NodeMCU ESP8266. Perangkat ini terdiri dari hardware antara lain NodeMCU ESP8266, resistor, analog to digital converter ADS1115, Driver ULN2003, Stepper Motor BY28J yang di program pada software Arduino IDE dan Blynk App. Perangkat ini dapat dikendalikan dan dimonitor secara wireless selama terhubung dengan koneksi WiFi sesuai dengan program yang dibuat.
Sistem Keamanan Sepeda Motor (SIKESEM) Menggunakan Kamera dan GPS Berbasis Internet of Things
Authors: Fajar Setiawan Vicky , Ma'arif Alfian
Published: September 2022

Kebutuhan manusia akan sandang, pangan, dan papan semakin meningkat. Peningkatan kebutuhan yang tidak diimbangi dengan kemampuan untuk memenuhi kebutuhannya mengakibatkan bertambahnya tindak kriminalitas. Pengamanan pengendara sepeda motor, pengontrolan sepeda motor mencakup klakson, kelistrikan dan lokasi menggunakan ponsel berbasis Intenert of things (IoT) sangat penting untuk mengatasi pencurian kendaraan bermotor. Pengambilan gambar, digunakan webcam. Tingkat kualitas gambar yang baik apabila sinar cahaya sedikit terhahalang oleh pepohonan. Relay untuk mengontrol kelistrikan dan klakson sepeda motor. Keakurasian relay adalah 100% untuk menjalankan fungsinya. Penentuan titik longitude dan latitude, digunakan modul GPS NEO – 6M. Keakurasian terhadapat titik sebenarnya antara 2 – 10 meter. Telegram melalui bot telegram digunakan sebagai apalikasi untuk melakukan komunikasi dengan sistem. Tingkat kecepatan sistem membalas antara 1 – 5 detik. Proses terlama untuk melakukan komunikasi adalah pengambilan gambar yang memerlukan waktu 5 detik.
Alat Pendeteksi Kadar Alkohol Pada Minuman Arak Bali Berbasis Wemos D1 Mini
Authors: Pradnyana Made Aditya Arya , Putra Kadek Yogi Premana , Widnyana Kadek Dwitya , Budarsa I Gede Ketut Sri , Sangka I Gde Nyoman , Yasa I Made Adi , Sapteka Anak Agung Ngurah Gde
Published: September 2022

Arak Bali merupakan minuman beralkohol yang cukup terkenal di masyarakat, bahkan menjadi mata pencaharian masyarakat di berbagai desa adat di Bali, khususnya di daerah Karangasem dan Buleleng. Untuk mengetahui kadar alkohol pada arak Bali, perlu melakukan pengukuran ataupun pengujian di laboratorium. Namun, untuk melakukan pengujian di laboratorium membutuhkan waktu yang cukup lama. Untuk mengatasi permasalahan tersebut, perlu dirancang sebuah alat untuk mengukur kadar alkohol khususnya pada arak Bali dengan waktu yang singkat dan hasil yang akurat. Penelitian ini dilakukan untuk merancang alat pendeteksi kadar alkohol khususnya pada arak Bali. Alat yang dirancang pada penelitian ini menggunakan sensor MQ-135 berbasis Wemos D1 Mini dimana hasil pengukuran berupa persentase dan golongan alkohol ditampilkan di LCD Oled 0.91” dan aplikasi smartphone secara real time. Data pengukuran dapat disimpan di database Firebase melalui aplikasi smartphone. Alat ini menggunakan koneksi internet agar dapat terhubung ke aplikasi smartphone dan database Firebase. Proses pengujian alat ini menggunakan 6 buah sample arak Bali yang dicampur air dengan total 1 menit per samplenya dan memiliki tingkat akurasi mendekati 100% jika dibandingkan dengan perhitungan.
Strategi Sekolah Dalam Mempertahankan Kualitas Lulusan Siswa Pada Masa Pandemi Covid-19 di SMA Negeri 1 Padang
Authors: Riyadi Muhammad Rafli , Fernandes Reno
Published: September 2022

The pandemic began to occur in early 2020. Due to the pandemic, education was conducted online. This raises several problems ranging from the difficulty of schools in adapting to even causing students to experience difficulties in learning and resulting in learning loss which makes the quality of school graduates experience a decline in quality. Therefore, this study looks at the strategy of SMA Negeri 1 Padang in maintaining the quality of graduates during the Covid-19 pandemic. This research was analyzed using a qualitative approach with the type of case study research. The informant selection technique in this study used a purposive sampling technique with a total of 7 informants consisting of school officials such as school principals, curriculum representatives, student representatives, counseling teachers, teaching teachers, and several students. Data collection techniques were carried out by direct observation to the research location, namely SMAN 1 Padang, interviewing informants in the field by asking several questions about the problems the authors faced and doing documentation. Data analysis techniques used in this study are data reduction, data presentation, data verification from Miles and Huberman. The validity of the data is done by data triangulation. The theory used in this research is the structural-functional theory from Talkott Parsons with the A.G.I.L (Adaptation, Goal, Integrity, and Latency) scheme. This theory views society as a unified system that functions with each other. If one system in society does not function properly, then the other system will experience problems. The results of this study are SMA Negeri 1 Padang is able to maintain the quality of graduates during online learning by using several strategies in implementing the online learning process so that learning can run with school quality standards so that school graduates are able to graduate to the most favorite PTN in Indonesia.
Penggunaan Model Pembelajaran Probing prompting Sebagai Upaya Meningkatkan Kemampuan Berpikir Kritis Siswa Pada Pembelajaran Sosiologi di Kelas X SMA Pembangunan Laboratorium UNP
Authors: Putra Hafizh Syahli , Sylvia Ike
Published: September 2022

This research is motivated by the low critical thinking skills of students in class X Social Sciences 3 SMA UNP Laboratory Development. Based on this, an innovative and creative learning model is needed so as to encourage students to think critically by using the Probing prompting learning model. The purpose of this study was to analysis the effect of the Probing prompting model on students' critical thinking skills. This research is a classroom action research carried out in two cycles. The data collection technique of this research used observation, tests and documentation. The theory that is suitable for this research is Ausubel's cognitive theory. Based on the results of research conducted by researchers at the UNP Laboratory Development High School, the percentage results in the first cycle of 41.32% increased in the second cycle of 70.00% from the results of the second cycle percentage in this study showed an increase in students' critical thinking. Therefore, this use can answer the question of this research in improving the critical thinking of class students.
Interaksi Guru Pamong dan Mahasiswa Pratek Lapangan Pasca Pandemi Covid-19
Authors: Agustin Jesy , Fernandes Reno
Published: September 2022

This study aims to analyze the Implementation of Field Practices after the Covid-19 Pandemic Study of Interaction between Civil Service Teachers and Students at SMAN 1 Nan Sabaris Padang Pariaman in the implementation of PLK, that isi where the student learning process takes place to become a teacher. Therefore, civil servant teacher and students must establish a good relationship. However, in the implementation of PLK, civil servant teachers do not carry out their roles as stated in the PLK manual. So from this problem there is a discrepancy in the implementation of PLK. So that the problem leads to a pattern of dissociative social interaction between tutors and student. This research was analyzed using Gerge Simmel theory of Subordinate and Superordinate. The approach used is a case study qualitative approach. This research uses a purposive sampling technique 18 informants consisting of 10 teachers and 8 students. The data collection techniques used in this study were observation, interviews and document studi. For this research data, the authours used triangulation data, the data werw analyzed using the Mathew B Milles and A Michael Huberman models, incliding the stages of data reduction, data presentation, and conclusion. Hand research this shows that the reason for the establishment of social dissociative interactions between the civil teachers and student is that the civil sevant teachers has the authority to deal with students, students are less socialized at shool, tutors are constrained in the use of technology, tutors do not guide students based on their roles, and assignments by civil servant teachers are outside the student responsibility.
Penerapan Media Explosion Box dalam Meningkatkan Keaktifan Siswa Kelas XI IPS 1 Pada Pelajaran Sosiologi di SMA N 6 Padang
Authors: Nabilla Farah , Nora Desri
Published: September 2022

This research is motivated by the low activity of students in learning sociology at SMAN 6 Padang, especially in class XI IPS 1. The right effort to increase student activity in learning sociology in class XI IPS 1 is to apply explosion box media. The purpose of this study was to analyze how the application of the explosion box in increasing the activity of class XI IPS 1 student. This research method used classroom action research with a research sample of 39 students. Data collection techniques used are observation, interviews and documentation with research instruments, namely observation sheets and interview guidelines with quantitative descriptive analysis techniques. The theory used by researchers in this study is the behavioristic theory according to Thorndike. The results of this study prove that the application of explosion boxes can increase the activity of class XI IPS 1 SMA N 6 Padang students in the 2021/2022 academic year with the percentage before using the explosion box is 28.2% then after using the explosion box media it increases in cycle 1 50.6%, then in the second cycle increased to 74.0%. Learning using explosion box media can increase student activity because it involves students as a whole and makes students creative and active in receiving learning. So it can be concluded that the explosion box media is suitable for increasing the activity of class XI IPS 1 SMAN 6 Padang students.
Persepsi Siswa Terhadap Pembelajaran Daring di SMA N 10 Batang Hari Jambi
Authors: Rosdilla Rosi , Junaidi Junaidi
Published: September 2022

The purpose of this study is to analyze how students perceive online learning at SMA Negeri 10 Batanghari. This research is motivated by students' problems during online learning due to the covid-19 pandemic, from face-to-face learning to online learning using Whatsapp Group and Google Classroom media, besides that, students' responses are still low and their participation in online learning shows that students' readiness is still lacking. In this problem, the researcher describes how students perceive online learning at SMA Negeri 10 Batanghari. This research uses a qualitative approach with an intrinsic case study research type, the technique for selecting the selected informans was purposive sampling. The data collection techniques was done by means of observation, interview, and documentation study. Data wwere analyzed using techniques from Miles and Huberman consisting of data reduction, data presentation, and drawing conclusions. Informants in this study amounted to 28 people. This research was analyzed using the Construtivistic Theory by Jean Piaget. The result showed that threre were problem of online learning, such as difficult internet access, time limited, and the lesson difficult to understand because of that. The students said that there were so many problem of online learning in pandemic. So that, students perceive online learning at SMA Negeri 10 Batanghari is negative, because the lesson can’t optimal.
Penyebab Peserta Didik Tidak Berpartisipasi Aktif dalam Pembelajaran Sosiologi di Kelas XI IPS 1 SMAN 4 Merangin Jambi
Authors: Risanatul Risanatul , Junaidi Junaidi
Published: September 2022

This research was motivated by the low level of participatory students in learning sociology in class XI social studies 1, SMA N 4 Merangin Jambi. This is evidenced by only 27.30% of students who play an active role in learning. From the percentage of active students, it shows that the level of student participation in learning is still low. The theory put forward in this study is the behavioristic theory according to skinner which focuses on the creation of behavioral patterns that can be seen from learning outcomes. The purpose of this study analyle out the causes of students not participatory in learning. This research uses a qualitative approach with a case study type of research. Informant selection technique using purposive sampling technique with the number of informants as many as 13 people. Data collection techniques are observation techniques, in-depth interviews and documentation studies. Data analysis uses Miles and Huberman's interactive analysis model which consists of data reduction, data presentation, and drawing conclusions. The results of this study show that there are several things that cause students not to participate in learning. The causes of class XI social studies students of SMAN 4 Merangin not actively participating: 1) fear or shame of being laughed at by friends. 2) don't understand metering. 3) the student's health condition 4) the curator's concentration is studying 5) the curator is self-preparation.
Pengaruh Peran Guru Terhadap Motivasi Belajar Peserta Didik dalam Pembelajaran Sosiologi Kelas XI IPS di SMAN 1 Padang Gelugur Pasaman
Authors: Nurharli Ariyanti , Junaidi Junaidi
Published: September 2022

This research was motivated by the low learning motivation of students in learning sociology for class XI IPS at SMAN 1 Padang Gelugur, Pasaman, the low motivation to learn students was seen from the movements of students during the learning process, and student learning outcomes in learning sociology. This is interesting to study because in the process of learning activities there is a need for motivation, where the motivation of students greatly determines how these students act in the learning process but there are still students who have low motivation so that this becomes a problem that needs to be studied more deeply. This study aims to analyze the relationship between the teacher's role and students' motivation in learning sociology in class XI IPS at SMAN 1 Padang Gelugur, Pasaman. This type of research is correlational, quantitative approach with ex post facto method. The number of samples is 68 students. The sampling technique used is proportional random sampling technique. This study uses the role theory of Robert Linton and Biddle and Thomas, then the researcher also uses the behavioristic learning theory proposed by Gagne and Berliner. Data collection is done by distributing questionnaires (questionnaire) directly. Then test requirements analysis using 3 classical assumption tests, namely normality test, linearity test and heteroscedasticity test. The data collected were analyzed using product moment correlation analysis techniques and simple linear regression analysis, while for hypothesis testing using t statistical tests and calculating the coefficient of determination (R2). The results of this study indicate that there is a positive and significant relationship between the teacher's role and students' learning motivation in learning sociology for class XI IPS at SMAN 1 Padang Gelugur, Pasaman with a large correlation (R) of the teacher's role with students' learning motivation of 0.532 or 53% and the coefficient of determination R square (R2) is 0.283 or 28% and the remaining 72% is influenced by other variables or factors that are not the focus of this study.
Aktivitas dan Prestasi Belajar melalui Penerapan Metode Permainan di Kelas V SD N 09 Batang Anai Kabupaten Padang Pariaman
Authors: Dalimasni Dalimasni
Published: September 2022

The objectives of this Classroom Action Research (CAR) are to improve students' mathematics learning activities, and 2) to improve the mathematics learning achievement of students. The research was carried out in two (2) cycles each consisting of two (2) meetings through the following stages of planning, observation, and reflection. The results obtained from CAR through the game method model showed an increase in the results of student activities, especially in activities to prepare places, materials, and tools by 54,71 %, activities to express ideas by 65,12 %, and for activities to read game rules and books experienced by 73,02 %. Based on the student's mathematics learning achievement data, the average grade in cycle 1 was 65,12, increasing to 71,91 in cycle 2. The percentage of students who achieved the standard of completeness also increased in cycle 2 by 87,18 % (good category), increasing to 100 % (special category) in cycle 2.
Mobilisasi Sumber Daya Pada Aksi Kamisan Padang
Authors: Azzhahra Laura , Putra Eka Vidya
Published: September 2022

Penelitian ini bertujuan untuk mengetahui apa saja sumber daya yang dimiliki oleh aksi Kamisan Padang dari bagaimana mobilisasi yang dilakukan untuk mempertahankan gerakan. Banyaknya pelanggaran Hak Asasi Manusia (HAM) yang terjadi dan tidak menemukan penyelesaian permasalahan hak asasi manusia menyebabkan munculnya banyak gerakan-gerakan sosial di dalam masyarakat. Salah satu gerakan tersebut adalah Aksi Kamisan. Aksi Kamisan adalah aksi demo diam yang dilakukan dengan tuntutan-tuntutan pelaggaran HAM berat dimasa lampau yang pertama kali dilakukan di Jakarta. Aksi ini sudah banyak menyebar diberbagai daerah salah satunya di Kota Padang, Sumatera Barat. Di Kota Padang sendiri aksi ini sudah bertahan cukup lama, namun menariknya gerakan ini masih bertahan selama ini padahal peserta di dalamnya tidak bersentuhan langsung dengan isu HAM di Jakarta. Maka menarik untuk melihat kebertahanan Aksi Kamisan di Kota Padang. Teori yang digunakan adalah mobilisasi sumber daya dari Anthony Oberschall. Penelitian ini menggunakan pendekatan penelitian kualitatif tipe studi kasus. Teknik pemilihan informan adalah teknik purposive sampling, dengan informan berjumlah 10 orang. Pengumpulan data yang dilakukan adalah dengan cara observasi, wawancara dan studi dokumentasi. Hasil penelitian yang telah didapat di lapangan mengenai kebertahanan Aksi Kamisan di Kota Padang dilihat dari: pertama sumber daya yaitu, aktor sentral dalam gerakan dan strategi Aksi Kamisan Padang, kedua mobilisasi yang dilakukan gerakan, pada Aksi Kamisan Padang gerakan ini bersifat fleksibel, sederhana dan kolaboratif.