bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perancangan Pendeteksi Harmonisa dengan Menggunakan Raspberry Pi
Authors: Ningrum Hanifah Nur Kumala , Habsari Kumala Mahda , Putra Rakhmad Gusta 
Published: November 2024

Energi listrik sudah menjadi kebutuhan pokok pada setiap Penggunaan rangkaian elektronika daya pada sistem tenaga listrik mempengaruhi kualitas daya listrik. Banyaknya beban non linier dan alat pengatur kecepatan motor menyumbangkan nilai harmonisa yang cukup besar pada sumber. Harmonisa mengakibatkan gelombang frekuensi tinggi yang membuat cacat pada gelombang sinus. Efek dari harminisa ini salah satunya adalah overheating pada peralatan listrik sehingga lifetime alat menjadi berkurang. Parameter besarnya harmonisa disebut THD (Total Harmonic Distortion). Nilai THD pada arus dan tegangan hanya dibatasi sebesar maksimal 5%. Pengukuran harmonisa ini dilakukan diantaranya dengan menggunakan Power Quality Analyzer atau dengan Osiloskop yang mempunyai FFT analysis. Pada penelitian ini, akan dirancang suatu alat yang bisa mendeteksi harmonisa pada sistem tegangan rendah tanpa menggunakan peralatan ukur tersebut. Alat ini berfungsi untuk mendeteksi spektrum harmonik dan menampilkannya pada display dengan menggunakan Raspberry Pi. Alat ini bisa digunakan untuk sensor pada filter aktif maupun stepping filter pasif. Hasil pengujian dengan menggunakan beban non linier menunjukkan hasil yang akurat untuk tampilan spektrum harmonisa arus dan tegangan dalam domain frekuensi.
Analisis Kinerja Enkoder Konvolusi Dengan Parameter BER dan SNR Menggunakan MATLAB
Authors: Rahmah Linza Mawadda 
Published: November 2024

Abstrak

Sistem komunikasi satelit menggunakan rentang frekuensi yang sangat tinggi untuk menerima dan mengirim sinyal sehingga terdapat beberapa kekhawatiran yg menjadi masalah yaitu masalah keamanan dan kesalahan data selama proses transmisi yang disebabkan oleh noise. Pada penelitian ini, dilakukan simulasi terhadap kemungkinan terjadinya kesalahan bit error dan Signal to Noise Ratio (Eb/No) untuk mengetahui kinerja pada convolutional encoder. Sedangkan pada sisi decoder menggunakan algoritma viterbi. Simulasi dilakukan menggunakan Simulink Matlab dengan parameter struktur rate kode konvolusi, BER, dan Eb/No. Hasil simulasi menunjukan bahwa besarnya Bit Error Rate (BER) sangat dipengaruhi oleh besarnya Eb/No. Semakin besar nilai Eb/No (dB), maka nilai BER akan semakin kecil. Begitu juga sebaliknya, semakin kecil nilai Eb/No (dB), nilai BER akan semakin besar. Selain itu, dengan penggunaan convolutional codes, hasil simulasi menunjukan bahwa konvolusi enkoder dengan rate 2/3 lebih baik dari rate 1/2 dan 1/3.

Kata Kunci: encoder konvolusi, rate, BER, signal to noise ratio (Eb/No), simulink matlab.

Abstract

Satellite Communication Systems use a very high-frequency range to receive and send signals. Some concerns become a problem, namely security issues, and data errors during the transmission process caused by noise. In this research, a simulation of the possibility of bit errors and Signal to Noise Ratio (Eb/No) was performed to determine the performance of the convolutional encoder. Whereas the decoder side uses the Viterbi algorithm. Simulations were carried out using Simulink Matlab with parameters the rate of convolution codes, BER, and Eb/No. Simulation results show that the magnitude of the bit error rate (BER) is strongly influenced by the amount of Eb/No. The greater the value of Eb/No (dB), the smaller the value of BER. And otherwise, the smaller the value of Eb/No, the greater the value of BER. In addition, with the use of Convolutional codes, the simulation results show that the convolution of encoders with a rate of 2/3 is better than the rate of ½ and 1/3.

Keywords: convolutional encoder, rate, BER, signal to noise ratio (Eb/No), simulink matlab.
Gender disparity in health-related quality of life among people living with HIV/AIDS in Ethiopia: a systematic review and meta-analysis
Authors: Tufa Derara Girma , Tola Habteyes Hailu , Dissassa Hiwot Dejene , Geleta Leta Adugna , Malka Erean Shigign , Tadesse Addisu Waleligne , Wariso Feyiso Bati , Fetensa Getahun 
Published: November 2024

IntroductionHealth-related quality of life (HRQoL) is a key outcome indicator in antiretroviral therapy program. In Ethiopia, primary studies on gender disparity in HRQoL among people living with HIV/AIDS (PLHA) are conflicting, with no pooled estimation. Therefore, this study aimed to investigate gender disparity in HRQoL among PLHA in Ethiopia.MethodsStudies were retrieved from PubMed, Web of Science, SCOPUS, Embase, MEDLINE, Science Direct, HINARI, and PsycINFO were systematically searched. In addition, Google Scholar, Google, journal homepages, bibliographies, and universities' research repositories in the country were searched by combining keywords and Medical Subject Headings (MeSH) terms with Boolean operators. Based on the primary study results, the average score of each domain was utilized as a cut-off point to classify HRQoL as poor or good. The Joanna Briggs Institute (JBI) checklist was used to assess study quality. A random-effects model was used to report the pooled estimates. Summary estimates are presented in forest plots and tables. The variation between studies was assessed using the Higgins heterogeneity test (I2). Funnel plot, Begg's test, and Egger's test were used to assess publication bias. Data were extracted using Microsoft Excel and exported to STATA 17 (Corporation, College Station, TX, USA) for analysis. The search results were managed using the EndNote X7 software.ResultsFifteen studies with 4,867 PLHA were included. The pooled prevalence of poor HRQoL was 46.53% (95% CI: 41.96–51.10), 46.15% (95% CI: 37.05–55.24), and 36.21% (95% CI: 30.19–42.23) among PLHA, women, and men living with HIV, respectively. Moreover, a significant gender disparity in HRQoL was observed among Ethiopian women and men living with HIV. Women living with HIV were found to have 61% increased odds of poor HRQoL than men living with HIV in the country (OR = 1.61, 95% CI: 1.07, 2.15). No statistical evidence of a publication bias was observed.ConclusionAlmost half of PLHA patients in Ethiopia had a poor HRQoL. Women living with HIV have higher odds of poor HRQoL than men living with HIV. This highlights the pressing need for gender-specific risk assessment approaches and treatment interventions aimed at optimizing HRQoL in HIV/AIDS settings.Systematic Review Registrationhttps://www.crd.york.ac.uk/prospero/, identifier CRD42023454810.
Prediction of benign and malignant pulmonary nodules using preoperative CT features: using PNI-GARS as a predictor
Authors: Zhan Yuxin , Song Feipeng , Zhang Wenjia , Gong Tong , Zhao Shuai , Lv Fajin 
Published: November 2024

PurposeThe aim of this study was to develop and validate a prediction model for classification of pulmonary nodules based on preoperative CT imaging.Materials and methodsA data set of Centers 1 (training set: 2633; internal testing set: 1129); Center 2 and Center 3 (external testing set: 218) of patients with pulmonary nodule cases was retrospectively collected. Handcrafted features were extracted from noncontrast chest CT scans by three senior radiologists. A total of 22 clinically handcrafted parameters (age, gender, L-RADS, and PNI-GARS et al.) were used to construct machine learning models (random forest, gradient boosting, and explainable boosting) for the classification of preoperative pulmonary nodules, and the parameters of the model were adjusted to achieve optimal performance. To evaluate the prediction capacity of each model. Both 5-fold cross-validation and 10-fold cross-validation were used to test the robustness of the models.ResultsThe explainable boosting model had the best performance on our constructed data. The model achieves an accuracy of 89.9%, a precision of 97.48%, a specificity of 89.5%, a sensitivity of 91.1%, and an AUC of 90.3%. In human-machine comparison, the AUC of machine learning models (90.4%, 95% CI: 85.5%–94.8%) was significantly improved compared to radiologists (60%, 95% CI: 50%–71.4%).ConclusionsThe explainable boosting model exhibited superior performance on our dataset, achieving high accuracy and precision in the diagnosis of pulmonary nodules compared to experienced radiologists.
The effects of chemogenetic targeting of serotonin-projecting pathways on L-DOPA-induced dyskinesia and psychosis in a bilateral rat model of Parkinson’s disease
Authors: Lipari Natalie , Galfano Ashley , Venkatesh Shruti , Grezenko Han , Sandoval Ivette M. , Manfredsson Fredric P. , Bishop Christopher 
Published: November 2024

IntroductionParkinson’s disease (PD) is commonly characterized by severe dopamine (DA) depletion within the substantia nigra (SN) leading to a myriad of motor and non-motor symptoms. One underappreciated and prevalent non-motor symptom, Parkinson’s disease-associated psychosis (PDAP), significantly erodes patient and caregiver quality of life yet remains vastly understudied. While the gold standard pharmacotherapy for motor symptoms Levodopa (LD) is initially highly effective, it can lead to motor fluctuations like LD-induced dyskinesia (LID) and non-motor fluctuations such as intermittent PDAP. One source of these fluctuations could be the serotonergic raphe nuclei and their projections. Serotonin (5-HT) neurons possess the machinery necessary to convert and release DA from exogenous LD. In DA-depleted brain regions these 5-HT projections can act as surrogates to the DA system initially compensating but chronically leading to aberrant neuroplasticity which has been linked to LID and may also contribute to non-motor fluctuations. In support, recent work from our lab established a positive relationship between LID and PDAP in parkinsonian rats. Therefore, it was hypothesized that normalizing 5-HT forebrain input would reduce the co-expression of LID and PDAP.MethodsTo do so, we expressed 5-HT projection specific inhibitory designer receptor exclusively activated by designer drugs (DREADDs) using Cre-dependent AAV9-hM4di in tryptophan hydroxylase 2 (TPH2)-Cre bilaterally 6-OHDA-lesioned rats. Thereafter we used the designer drug Compound 21 to selectively inhibit 5-HT raphe projections during LD treatment to modulate the expression of PDAP, assayed by prepulse inhibition (PPI) and LID, quantified by the abnormal involuntary movements (AIMs) test.ResultsOur results suggest that chemogenetic inhibition of 5-HT raphe-projecting cells significantly reduces LID without affecting stepping ability or established sensorimotor gating deficitsDiscussionOverall, this study provides further evidence for the complex influence of 5-HT raphe-projecting neurons on LD’s neurobehavioral effects.
A global survey to understand general vaccine trust, COVID-19 and influenza vaccine confidence
Authors: D’Silva Chelsea , Fullerton Madison M. , Hu Jia , Rabin Kenneth , Ratzan Scott C. 
Published: November 2024

IntroductionThe COVID-19 pandemic has greatly impacted the way that the world views vaccines. While safe and effective, COVID-19 vaccines were, and continue to be met with hesitancy and misinformation. We aimed to understand public perceptions and trust in COVID-19 vaccinations and how the pandemic has impacted perceptions of non-COVID-19 vaccines.MethodsSurvey data were collected between August 7, 2023–August 16, 2023, from 7,000 respondents aged 18 years and older from the United States (n = 1,000); Nigeria (n = 1,000); United Kingdom (n = 1,000); France (n = 1,000); Canada (n = 1,000); Brazil (n = 1,000); and India (n = 1,000).ResultsTrust in COVID-19 vaccines was highest in Brazil (84.6%) and India (80.4%) and lowest in the United States (63.5%) and France (55.0%). 47.5% of respondents agreed that they trust traditional protein-based vaccines more than mRNA vaccines, 13.5% disagree and 39.0% are neutral about their trust in protein-based versus mRNA vaccines. Overall, 53.9% of respondents reported that the COVID-19 pandemic impacted their perceptions of vaccines with half of these respondents (51.7%) reporting that the pandemic made them think that other vaccines are more important as they understand how critical vaccines can be at preventing serious illnesses.DiscussionThese data can be used by health system decision makers, public health and researchers to understand how vaccine trust impacts perceptions of COVID-19 and influenza vaccines globally and develop tailored interventions that address local concerns.
Toward stakeholders’ understanding of media reporting on doctor–patient relationship issues: trust, unfamiliarity and uncertainty in the Chinese context
Authors: Gao Zhenghan , Huang Junyang , Zhang Bowen , Zhang Xinwen 
Published: November 2024

IntroductionThis study explores doctors’ and patients’ understandings of citizen journalism on doctor–patient relationship issues. It also examines the communication effect of citizen journalism as a communication platform on doctors and patients who are taking part in the doctor–patient relationship in contemporary China.MethodThis study draws on the analysis of 24 semi-structured interviews with doctors from both publicly funded and privately operated hospital, and nine focus groups which included 36 patients with different socio-economic backgrounds.ResultThe empirical research present the following results: (1) authority and witness are the two key factors to construct the stakeholders’(doctors’ and patients’) awareness and trust of citizen journalist reporting on the doctor–patient relationship issues. (2) stakeholders’ perception on citizen journalism will construct them concern on the uncertain and unfamiliar knowledge during the hospital activities.DiscussionThe interpretation of doctor–patient relationship reports by doctors and patients affects their mutual trust. Authority and witnessing are two key factors that citizen journalists should consider when reporting on doctor–patient relationship news. Doctors from different types of hospitals and patients with different income levels have different understandings of the authority and witnessing of the reported content. Reading the content of doctor–patient conflicts reflected in citizen journalist reports can exacerbate the emotional fluctuations of doctors and patients. After reading these reports, doctors and patients may experience increased anxiety about uncertainty and unfamiliarity in doctor–patient communication.ContributionThis study provides a framework for public health research from the relationship between communication content and audience. It also provides answers from the perspectives of media and stakeholders to investigate the tension in doctor–patient relationships in China.
The relationship between intraoperative glucose levels and length of hospital stay in patients with a femoral neck fracture: a retrospective study based on the MIMIC-IV database
Authors: Ni Yan , Hu Cheng-ming , Li Chao , Zhang Ting , Bao Ying-xue 
Published: November 2024

ObjectiveThis retrospective study aimed to explore the relationship between intraoperative glucose (IG) and the length of hospital stay (LOS) in patients with femoral neck fractures via the Medical Information Mart for Intensive Care-IV (MIMIC-IV) database.MethodsA generalized additive model was performed to explore the relationship between IG levels and LOS. Restricted cubic spline curves were used to analyze the dose-response relationship between IG levels and prolonged LOS (or 7-day LOS). Threshold effect analysis was conducted to assess the key points influencing their association. Receiver operating characteristic (ROC) curve and decision curve analysis (DCA) were performed to evaluate the predictive performance of IG levels for LOS.ResultsA total of 743 patients with femoral neck fractures were enrolled from the MIMIC-IV database. We found that there was a non-linear relationship between IG and the LOS (or prolonged LOS/&gt;7 days LOS). Moreover, their relationship was still significant even after adjusting for potential confounders. The threshold effect showed that IG was significantly related to a prolonged LOS when it was &gt;137 mg/dl, and IG was significantly related to a 7-day LOS when it was &gt;163 mg/dl. ROC showed that IG had a better function in predicting a 7-day LOS in participants with IG &gt;163 mg/dl than in predicting a prolonged LOS among participants with IG &gt;137 mg/dl. Moreover, the DCA results showed that IG can obtain a favorable net benefit in clinical settings in predicting a 7-day LOS among participants with IG &gt;163 mg/dl.ConclusionsIn summary, there was a non-linear relationship between IG levels and LOS. In patients with IG levels &gt;163 mg/dl, using IG content to predict an LOS &gt;7 days had a good function.
Case report: Successful treatment of chorioptic mange in two Belgian draft horse foals with topical ivermectin
Authors: Brys Marieke , Den Hondt Stien , Saey Veronique , Claerebout Edwin , Chiers Koen 
Published: November 2024

IntroductionVarious draft horse breeds, especially breeds with abundant feathering on the lower limbs, are known to be susceptible to chorioptic mange. Clinical signs of chorioptic mange encompass intense pruritus leading to self-mutilation and hair loss, thickening of the epidermis, and the formation of hyperkeratotic crusts and scabs. Despite the frequent occurrence and high impact of this condition, treatment options are limited, with a conspicuous absence of registered products formulated for equines, and especially foals. This limited availability of approved products highlights the necessity for alternative approaches to effectively address chorioptic mange in draft horse populations, given the severity of the clinical signs and their negative impact on the well-being of infested horses.MethodsTwo 9-months old Belgian draft horse foals with clinical signs of severe pruritus and skin scaling on the distal legs were included. Both horses tested positive for living mites by means of superficial skin scrapings. Topical treatment with ivermectin at a dose of 1 mg/kg body weight was applied twice with 1 week interval, directly onto the distal legs of the horses.ResultsIn both cases, the mites were morphologically identified as Chorioptes bovis. Negative scrapings were obtained 7 days after the second treatment. Pruritus resolved in both horses within 2 days after the first treatment. Clinical signs consisting of skin scaling and crusting in the pastern region had resolved as well at 1 week and 3 weeks after the second treatment, respectively.ConclusionThis case report presents the first successful treatment of two clinical cases of chorioptic mange in Belgian draft horse foals with 1 mg/kg topical ivermectin, applied directly onto the distal legs.
Spatiotemporal occupancy patterns of chronic wasting disease
Authors: Davis Amy J. , Hesting Shane , Jaster Levi , Mosley Joseph E. , Raghavan Akila , Raghavan Ram K. 
Published: November 2024

IntroductionChronic wasting disease (CWD) among cervids in Kansas has seen a consistent rise over the years, both in terms of the number of infections and its geographical spread. In this study, we assessed the occupancy patterns of CWD among white-tailed deer and mule deer across the state.MethodsUsing surveillance data collected since 2005, we applied a dynamic patch occupancy model within a Bayesian framework, incorporating various environmental covariates. Using principal components analysis, 13 fully orthogonal components representing cervid habitat, soil, and elevation were derived. Competing models with different temporal patterns were fit, and the best model selected based on Watanabe-AIC values and AUC value of 0.89.ResultsThe occupancy pattern produced by this model revealed a steady progression of the disease toward the east and southeast of the state. A random forest analysis of covariates at annual intervals indicated that geographic location, elevation, areas occupied by mixed forests, and several soil attributes (pH, clay content, depth to restrictive layer, available water content, and bulk density) explained most of the variability in the surveillance data (R2 = 0.96).DiscussionThe findings reported in this study are the first for the state of Kansas but are consistent with previous findings from other geographic jurisdictions in the US and Canada. This consistency underscores their value in designing surveillance and management programs.
Electrophysiological Markers of Ex-Situ Heart Performance in a Porcine Model of Cardiac Donation After Circulatory Death
Authors: Amesz Jorik H. , Bierhuizen Mark F. A. , Langmuur Sanne J. J. , Knops Paul , van Steenis Yvar P. , Dumay Dwight , van Schie Mathijs S. , Manintveld Olivier C. , de Groot Natasja M. S. , Taverne Yannick J. H. J. 
Published: November 2024

Normothermic ex-situ heart perfusion (ESHP) enables assessment of hearts donated after circulatory death (DCD) prior to transplantation. However, sensitive parameters of cardiac function of DCD hearts on ESHP are needed. This study proposes a novel approach using electrophysiological (EP) parameters derived from electrical mapping as biomarkers of post-ischemic cardiac performance. Porcine slaughterhouse hearts (PSH) were divided in two groups based on the type of warm ischemia (Group 1: 10 ± 1 min with animal depilation vs. Group 2: ≤5 min without depilation). Electrical mapping of the right (RV) and left ventricle (LV) was performed on ESHP. Potential voltages, slopes and conduction velocities were computed from unipolar electrograms and compared between groups. Voltages were lower in Group 1 compared to Group 2 (RV: 3.6 vs. 15.3 mV, p = 0.057; LV: 10.8 vs. 23.6 mV, p = 0.029). In addition, the percentage of low-voltage potentials was higher and potential slopes were flatter in Group 1. Voltages and slopes strongly correlated with the visual contractile performance of PSH, but showed weaker correlation with lactate profiles. In conclusion, unipolar potential voltages and potential slopes were decreased in hearts with severe warm ischemia. As such, EP parameters could aid transplantation teams in decision-making on transplantability of DCD hearts.
Uji Keandalan Teori Empiris Dalam Memprediksi Laju Sedimentasi Waduk (Studi Kasus Sedimentasi Waduk Salomekko, Sulawesi Selatan)
Authors: Wahyudi Wahyudi , Wulandari Dyah Ari , Suripin Suripin 
Published: November 2024

Bendungan merupakan infrastruktur sumber daya air yang berfungsi membendung aliran air sungai untuk dialirkan secara teratur guna memenuhi berbagai kebutuhan air untuk pertanian, air minum, pembangkit listrik tenaga air dan konservasi. Salah satu faktor yang menentukan dalam perencanaan bendungan adalah adanya volume sedimen yang akan tertampung di waduk dalam kurun waktu umur waduk, dimana elevasi bangunan pengambilan akan ditempatkan di atas elevasi kumulasi volume sedimen di waduk, atau yang dikenal dengan tanpungan mati (dead storage). Permasalahan yang terjadi pada bendungan yang telah dibangun di Indonesia adalah terjadi gap yang besar antara laju sedimentasi waduk rencana dengan realisasi hasil observasi yang dilakukan dengan pengukuran batimetri waduk. Tujuan penelitian adalah untuk menguji keandalan metode empiris USLE yang digunakan secara luas untuk perencanaan laju sedimentasi waduk di Indonesia, terhadap realisasi sedimen yang mengendap di waduk. Penelitian diadakan di bendungan Salomekko, yaitu suatu bendungan urugan yang terletak di Propinsi Sulawesi Selatan dengan luas DTA 12,92 Km<sup>2 </sup>dan mulai beroperasi sejak ahun 1998. Hasil uji keandalan laju sedimentasi waduk teoritis terhadap hasil observasi menunjukkan nilai yang rendah, yaitu sebesar 41,92%. Kondisi tersebut mengakibatkan rencana umur operasi waduk berdasarkan faktor sedimentasi tidak akan tercapai. Berdasarkan hasil penelitian ini disimpulkan bahwa rumus empiris USLE perlu dilakukan modifikasi pada rumus faktor kemiringan lereng (LS) yang sesuai dengan kondisi kepulauan Indonesia yang berkontur terjal, sementara rumus empiris USLE dibuat dengan sampel Daerah Tangkapan Air yang landai.