Miracle-dz/UniFAR-FTUs huggingface dataset:
The Effect of Test Timing on the Probability of Positive SARS-CoV-2 Swab Test Results: Mixed Model Approach

Background During the COVID-19 pandemic, swab tests proved to be effective in containing the infection and served as a means for early diagnosis and contact tracing. However, little evidence exists regarding the correct timing for the execution of the swab test, especially for asymptomatic individuals and health care workers. Objective The objective of this study was to analyze changes in the positive findings over time in individual SARS-CoV-2 swab tests during a health surveillance program. Methods The study was conducted with 2071 health care workers at the University Hospital of Verona, with a known date of close contact with a patient with COVID-19, between February 29 and April 17, 2020. The health care workers underwent a health surveillance program with repeated swab tests to track their virological status. A generalized additive mixed model was used to investigate how the probability of a positive test result changes over time since the last known date of close contact, in an overall sample of individuals who tested positive for COVID-19 and in a subset of individuals with an initial negative swab test finding before being proven positive, to assess different surveillance time intervals. Results Among the 2071 health care workers in this study, 191 (9.2%) tested positive for COVID-19, and 103 (54%) were asymptomatic with no differences based on sex or age. Among 49 (25.7%) cases, the initial swab test yielded negative findings after close contact with a patient with COVID-19. Sex, age, symptoms, and the time of sampling were not different between individuals with an initial negative swab test finding and those who initially tested positive after close contact. In the overall sample, the estimated probability of testing positive was 0.74 on day 1 after close contact, which increased to 0.77 between days 5 and 8. In the 3 different scenarios for scheduled repeated testing intervals (3, 5, and 7 days) in the subgroup of individuals with an initially negative swab test finding, the probability peaked on the sixth, ninth and tenth, and 13th and 14th days, respectively. Conclusions Swab tests can initially yield false-negative outcomes. The probability of testing positive increases from day 1, peaking between days 5 and 8 after close contact with a patient with COVID-19. Early testing, especially in this final time window, is recommended together with a health surveillance program scheduled in close intervals.
Cohesive Devices in English Contents Written by Blog Writers and English Department Students

This study was conducted to investigate the use of cohesive devices in English writings written by Indonesian blog writers and English department students. It also focused on investigating the appropriateness of the use of cohesive devices in the writings. The data were English texts written by 15 blog writers and 15 English department students and analyzed manually by employing content analysis. The findings show that (1) lexical cohesion was used most frequently by both groups of the study followed by reference, connectives, and substitution and (2) the blog writers were more capable in using the cohesive devices appropriately in their writings.
Evaluation of Quality of Life and Self-Care Among Individuals with Heart Failure

The objective of the research was to evaluate quality of life and self-care agency among individuals with heart failure. Materials and Methods. The study sample consisted of 61 patients who were diagnosed with heart failure that occurred at least six months before we started our research, had no communication problems, were over 18 years old and were selected by random sampling method. The data were collected by the researcher using a face-to-face interview technique, a descriptive information form, the Short Form-36 Quality of Life Scale, and the Self-Care Agency Scale. In the analysis of the data, numbers, percentiles, means, the Kruskal-Wallis test, the Mann-Whitney U test, and the Pearson correlation coefficient were used. Results. The patients’ average self-care agency score was 71.75 ± 33.66. The patients received the highest score on the subscale of bodily pain (46.76 ± 31.02) and the lowest score on the subscale of role limitations due to physical health problems (19.26 ± 32.40). The patients’ age and disease duration were found to affect their self-care. Some quality-of-life subscales were affected by the educational, occupational and socioeconomic status, age, disease duration. Conclusions. Patients’ quality of life was found to be low, and the level of self-care agency was found to be moderate. Patients’ quality of life can be improved by increasing the frequency of self-care trainings given to patients.
Evaluation of Musa Paradisiaca (Banana Peel) Pectin as A Pharmaceutical Excipient in Ciprofloxacin Tablet Formulation

This study aimed at evaluating Musa paradisiaca (banana peel) pectin as a pharmaceutical excipients (binder) in ciprofloxacin tablet formulation. The banana peel pectin was extracted from the peel of Musa paradisiaca (banana). The granules formulated were evaluated for micromeritic properties. The granules were then compressed to tablets at a compression pressure of 30N/m. The resulting ciprofloxacin tablets were evaluated for hardness, friability and disintegration time, in vitro dissolution studies and release kinetics. The extracted banana peel pectin was found to contain the following phytochemicals – flavonoids, tannins, carbohydrates, reducing sugar, saponins, alkaloids, phytosteroids and glycosides. However, steroids, anthraquinones, phenols and terpenoids were absent. The different batches of formulated granules were free flowing with angle of repose between 17.21 + 0.20 to 23.45 + 3.50; bulk density (0.39 + 0.03 to 0.48 + 0.04); tapped density (0.05 + 0.04 to 0.52 + 0.01); compressibility index (8.15 + 3.10 to 13.46 + 1.80); Hausner’s ratio (1.09 + 0.03 to 1.16 + 0.03) and flow rate (0.27 + 0.07 to 0.59 + 0.29). All formulated ciprofloxacin tablets were uniform in weight. Their hardness were satisfactory (4.01 + 0.07 to 6.54 + 1.02 kg/cm); friability values ranging from 0.67 to 1.10% with tablets formulated with banana peel pectin being less friable. The tablets disintegrated within 15 min except those formulated with 10% w/v binder – Acacia 10% w/v (18.40 + 0.26), PVP 10% w/v (16.20 + 0.20) and banana peel pectin 10% w/v (18.20 + 0.50), minutes respectively. Increase in the binder concentration resulted in a corresponding increase in hardness and disintegration time but decrease in percentage friability. All batches fitted into the Higuchi model release kinetics. Banana peel pectin exhibited good binding property comparable to those of the standard Acacia BP and polyvinylpyvrodone BP powders.
Seasonal Variations in Semen Quality of Pasundan Bulls in their Native Tropical Environment

The success of artificial insemination highly depends on the semen quality, in which it may significantly associate with the environmental factor. However, the information regarding the seasonal effects on semen quality of Pasundan bulls is still scarce. This study aimed to examine seasonal variation in semen quality of Pasundan bulls in their native environment. A total of 203 ejaculates produced by two Pasundan bulls aged at four years old were used in this study. The bulls were kept under standard management conditions in Lembang Artificial Insemination Center. The results showed that mean values of semen volume, sperm concentration, total sperm number, individual sperm motility, post-thawing sperm motility and frozen semen production of Pasundan bulls were 5.7 mL, 1.17 billion/ml, 6.57 billion/ejaculate, 62.1,0 40.6 and 272% doses/ejaculate, respectively. Semen volume, individual sperm motility and post-thawing sperm motility were not affected by different seasons (P>0.05). Whereas, the significant reduction of sperm concentration (P<0.05), total sperm number (P<0.01) and frozen semen production (P<0.01) were observed in the dry season as compared to the rainy season. The minor change in ambient temperature, maximum ambient temperature, relative humidity and temperature-humidity index were detected between seasons. On the other hand, about 52% greater sunshine duration was detected in the dry season compared to the rainy season. In conclusion, the semen quality of Pasundan bulls is reduced during the dry season, which is considerably associated with the increase in sunshine duration.
Joint Master’s Degree in Nanotechnologies for ICTs

The recent technological progress is pushing the scientific community to enter a new Artificial Intelligence (AI) era, with systems able to perceive and understand the real world, in order to solve problems in a smarter way than humans do. In this field, Computer Vision (CV) systems are able to automatically see, identify, and understand the external visual world, making decisions depending on the data acquired, emulating the human vision. This progress is placed side by side with a continuous search of hardware architectures, such as GPUs, FPGAs, and ASICs, that can sustain the computation in a more efficient way than conventional software implementations do, allowing the analysis of data directly where it is acquired. The project wants to address both tasks with the implementation of a face detection algorithm, with a Deep Learning approach, on a low-power FPGA, taking advantage of its full programmability. While different building blocks have already been demonstrated as independent proofs-of-concept, a fully integrated, stand-alone system has not been developed and the project tries to fill this hole. This thesis presents the steps performed in order to obtain a suitable face detection algorithm that can fit within a limited memory, low-power FPGA, including preand post-processing of data. The work can be essentially divided into two parts: firstly a software implementation of the face detector has been done, and the results are compared to the literature, then simplifications are applied to the model in order to reduce its complexity for the successive hardware implementation on the target FPGA.
Official and Unofficial Media Information and the Public Panic during the COVID-19 Pandemic in China: An Empirical Analysis

The rapid spread of COVID-19 worldwide, similar to the SARS pandemic in 2013, which suddenly appeared in China, has caused panic among the people. Consequently, there is a need for a prompt and empirical investigation into the key factors promoting public panic during the outbreak in a bid to complement the global fight against the consequences of COVID-19. In this paper, a binary regression logit model was utilized to measure panic level among the Chinese residents. Subsequently, the main factors behind the panic were verified. The results show that psychological panic among the public is driven mainly by the influx of Wuhan residents, dissemination of official COVID-19 related information, living conditions and discussions of the surrounding people, and concerns about the possibility of transmission. In this connection, respective government committee are advised to declare a moderate lockdown of the province of Hubei (or Wuhan City), promote the circulation of positive news about key pandemic results, intensify drug research and development, and provide psychological intervention as countermeasures against the public panic. This study also provides some useful recommendations for the public authority to combat the novel coronavirus and manage emergencies.
What do Subjective Well-Being Judgments Mean? Sources and Distinctions, Processes and Mechanisms

How do people decide how happy they are? In principle, a number of models are possible and the current chapter highlights three of them. People could subdivide their life into various domains, consider their progress in these domains, and then integrate the results of this bottom-up activity. Alternatively, people could omit such a systematic process and simply base their judgments on whatever information is currently accessible. Finally, it is possible that people already know their happiness levels, in which case they could directly retrieve such evaluations. The plausibility of these models is examined with respect to issues of stability, change, and context in well-being judgment. People have fairly stable ideas about how happy they are and well-being judgments seem somewhat resistant to priming. Nonetheless, well-being sometimes changes in response to life events. Accordingly, some combination of judgment models might be necessary to fully account for current findings.
Sun energy on natural drying of cucumber and radish

Drying is a very basic process for reducing the moisture content of a material or product. It is the oldest technique used to extend the shelf life of a material or product. The idea is to dry in comparing cucumber and radish with the same thickness and shape of the sample. The result of the different samples, the operation time and temperature impact the drying kinetics. As the results of drying at open area and naturally gave the information have impacted the rate of drying. The type of sample with specific chemical compounds has a certain drying rate on a variation of temperature and operation time.
Utilization of Gabus Pasir fish waste meal (Butis Amboinensis) to substitute commercial fish meal on Pekin duck’s performance

The purpose of this study was to determine to the effect of the utilization of Gabus Pasir (Butis amboinensis) waste fish meal (GPWFM) as a substitute for commercial fish meal (CFM) on feed consumption, body weight gain, final weight, and feed conversion ratio of Pekin duck at 8 weeks. This research method uses a completely randomized design (CRD) with 5 treatments and 4 replications, each replication consisting of 5 day old duck. The treatments consisted of P0 (diet with 10% CFM); P1 (diet with 7.5% CFM and 2.5% GPWFM); P2 (diet with 5% CFM and 5% GPWFM); P3 (diet with 2.5% CFM and 7.5% GPWFM) and P4 (diet with 10% GPWFM). Based on the analysis of variance, it showed that all treatments did not have a significantly effect (P>0.05) on feed consumption, body weight gain, final weight and feed conversion ratio of Pekin ducks at the age of 8 weeks of maintenance. It can be concluded that Gabus Pasir fish waste meal can be used in diet to substitute commercial fish meal at a level of 100%, that is 10% of the level of fish meal in the diet.
Effect of purple sweet potato flour substitution and hemicellulose concentration on physical properties of bread

The substitution of purple fleshed sweet potato flour (PSPF) on wheat flour (WF) and the addition of hemicellulose enzyme concentration have been studied for their effect on the physical properties of bread. A factorial completely randomized design was used to perform the research. The first factor was PSPF and WF ratio consists of 0:100; 25:75; 50:50; and 100:0. The second factor was hemicellulase concentration consists of 0%; 0.025%; and 0.05%. The interaction between a ratio of PSPF and WF and hemicellulase concentration produced breads with significantly different (p<0.05) on colour index (L*, a*, b*, °Hue), specific volume, and organoleptic value of texture. The substitution of 25% PSPF on WF and adding 0.05% hemicellulase enzyme produce bread with the best quality.
Effect of Gelugur acid extract (Garcinia atroviridis) on the physical quality of culled chicken meat at different shelf life

This study aims to find out the interaction between the percentage of Garcinia atroviridis extract and the shelf life of the physical quality culled chicken meats. This study used a complete randomized design of factorial patterns. The first factor is the concentration of Garcinia atroviridis extracts (P0:0%, P1:3%, P2:6% and P3:9%). The second factor is the shelf life at (T1:24 hours and T2:48 hours). The data was analysed using a nova and if there was a noticeable difference will be continued using Duncan tests. The results showed that there was an interaction (P<0.01) between the increase of Garcinia atroviridis P1, P2, and P3 in the shelf life of T1 and T2 against pH, cooking loss, meat moisture content. However, there is no interaction (P >0.05) between Garcinia atroviridis in shelf life against the drip loss of meat. The higher Garcinia atroviridis extract will lead to decreased pH value, lower cooking loss value, and increase meat moisture content. The results showed the physical quality of culled chicken meat was still in the normal range. The use of Garcinia atroviridis extract 3% is recommended to improve the physical quality of culled chicken meat at a shelf life of 24 to 48 hours.
Investigation of structural and morphological properties of high energy ion irradiated KNN films

The transfer of high localized energy density to target matrix via swift heavy ion provides a domain to engineer the properties of materials in a systematic and controlled mode. The present study describes the influence of ion irradiation on structural properties and surface morphology of (K,Na)NbO3 (KNN) films of thickness 650–750 nm irradiated with 100 MeV Ni ions at different fluences varying from 1 × 1012 to 1 × 1013 ions cm−2. Multiple ion impact induced reduction in crystalline behavior of KNN perovskite is observed as an effect of ion fluence. The films show partially amorphized nature with ion fluence, and are remained in crystalline perovskite phase after irradiation with decreased peak intensities. Quantitative surface roughness and surface scaling study via power spectral density (PSD) analysis were carried out using atomic force microscopy (AFM) micrographs. The root mean square roughness decreased at 1 × 1012 ions cm−2 and thereafter, increased monotonously with increasing ion fluence. The adatoms mobility and coalescence effect might have caused the variation in roughness. From the PSD results, modification of surface morphology of films irradiated at 1 × 1012 ions cm−2 is attributed to the competing mechanisms of viscous flow and evaporation-recondensation processes. At higher fluence, the evolution mechanism of morphology is turned out to be the combined effect of evaporation-recondensation and diffusion processes. The microstructures obtained using scanning electron microscopy are correlated with the AFM results. The dominating processes of irradiation induced modification in the morphology of KNN films are studied in detail, and this study will be useful from both fundamental and applied perspectives.
Inhibition effectivity of Halimeda macroloba seaweed extract against fish indigenous bacteria for safety fisheries product

Concerns about the potential for residual antibiotics can cause adverse health effects for consumers. The use of inappropriate antibiotics is feared to lead to antimicrobial resistance by pathogens. New sources of antibacterial can be obtained from bioactive compounds from seaweed, one of which is a H. macroloba type. The research objective was to determine the effectiveness of H. macroloba seaweed extract inhibition against indigenous bacteria in fish. H. macroloba samples taken from the waters of Pane Island. The extraction process was carried out by maceration method with methanol p.a solvent. The secondary metabolites were obtained with phytochemical test. Inhibition test with the Kirby-Bauer agar diffusion method through experimental by adding DMSO. H. macroloba have secondary metabolite compounds, there are alkaloids and flavonoids which a function as an inhibitory force for bacteria. Different treatment of H. macroloba extract resulted in a significant effect on Vibrio parahemolitycus with an inhibitory value of 10.73 mm. Meanwhile, different treatment on Aeromonas hydrophyla and Aeromonas salmonicida was stated to have no significant effect in increasing the inhibition zone diameter. However, it was directly proportional to the increasing effectiveness of the inhibition zone diameter, the most effective treatment was at a concentration of 100%.
Risk perception and risk reduction efforts of red chili business in Langkat Regency North Sumatera Province

The process of supplying red chili is not fully controlled by the farmers. The main factor that causes it is that the red chili farmers are small-scale farmers whose production decision-making process is thought not handled by a good forecast of production and prices. This is due to the influence of different perceptions of farmers in deciding which farming strategy to use. Therefore, it is necessary to carry out research on the relationship of risk perceptions to risk management strategies for red chili farming in Langkat Regency, North Sumatra Province. The data used are primary data sourced from questionnaires and interviews with 112 red chili farmers in Langkat Regency. The analysis method used is the Pearson Correlation to see the relationship between farm risk management strategies and perception. The results showed that the correlation of the risk perception variable and risk management strategy had a strong, significant and unidirectional effect on the red chili farming.
Local forage development strategies based on beef cattle farmer’s preferences

Indonesia has large potential resource of local forage. However, the utilization is limited. Therefore, a local feed resources particularly on forage development strategy is needed to determine the chosen feed sources based on the needs and preferences of beef cattle farmer. The research objectives were to determine beef cattle farmers’ preferences in choosing forages for their livestock and to determine strategies for developing potential local forages based on beef cattle farmers’ preferences. This research involved 106 beef cattle farmers in Kucur and Arjowilangun Villages, Malang Regency, East Java, who were selected purposively. Descriptive statistical analysis using cross tabulation was used in this study. The results revealed that the three main preferences of farmers in choosing forages were based on the level of cattle palatability, nutrient content, and forage productivity, respectively. The strategy of local feed development can be promoted by developing local feed sources that have a high level of palatability, nutrient content, and productivity.