Miracle-dz/UniFAR-FTUs huggingface dataset:
Performance Enhancement of Shell–Tube Heat Exchanger by Clamping Anti-Vibration Baffles with Porous Media Involvement

Abstract The enhancement with porous media involvement is estimated and compared for three varieties of shell and tube heat exchangers (STHXs), with helical, segmental and clamping anti-vibration baffles, with two variations, viz., porosity value and dimension of this media (radius). In this study, further improvement in the thermo-hydraulic performance of the anti-vibration baffles design of STHX was investigated using simulation, with porous media inclusion. The inclusion of porous medium in the shell side is in a way that the whole tube bundle is wrapped by it; inside the tubes, porous media are located in two ways: (1) at the center of tubes and (2) fixed to the inner lining of the tubes. The findings suggest that the porous media improve the heat transfer with the expense of pressure drop; it is also noted, of all the cases, the pressure drop is minimum in anti-vibrational baffles. The analysis showed that using porous media with specific porosity and dimension can increase heat transfer rate along with less pressure drop. For the clamping anti-vibration baffles STHX, enhanced and overall effective performance was found with porous media inclusion of 0.6 porous radius ratio and porosity of 0.6.
Investigation of low intensity light performances of kesterite CZTSe, CZTSSe, and CZTS thin film solar cells for indoor applications

In this study, we prepared three kesterite thin-film solar cells, Cu2ZnSnSe4 (CZTSe), Cu2ZnSn(S,Se)4 (CZTSSe), and Cu2ZnSnS4 (CZTS), and based on low light intensity measurements, examined the possibility of using kesterite devices for indoor applications. Interestingly, all the prepared cells exhibited nearly the same device efficiency under standard test conditions of 1 sun; however, under illumination with low-intensity halogen and LED lamps (200–400 lux), the power output of CZTSSe was twice that of CZTSe and CZTS. CZTSe (58%) and CZTS (37%) showed relatively larger open-circuit voltage drops than CZTSSe (29%). Suns–Voc measurements revealed that the ideality factor of CZTS and CZTSe increased as the light intensity decreased, which indicates severe recombination caused by deep-level defects at low light intensities. Furthermore, admittance spectroscopy measurements revealed that CZTSe and CZTS have deep trap energy levels, whereas CZTSSe has comparatively shallower trap energy levels; this validates the rapid open-circuit voltage drop under low light intensity conditions. Kelvin probe force microscopy measurements showed that CZTSSe exhibited a higher photovoltage (86 mV) under illumination at 400 lux compared with that under dark conditions. In addition, our results indicated that the CZTSSe sample showed relatively much higher charge separation at GBs (grain boundaries) owing to the downward band bending at the GBs. The findings revealed that for deeper energy levels, the open-circuit voltage reduction was faster; in addition, an absorber layer with shallower defects and efficient charge separation at the GBs can induce high power conversion efficiency under low-light conditions.
Dual-Stage Social Friend Recommendation System Based on User Interests

The use of online social network (OSN) has become essential to humans' lives whether for entertainment, business or shopping. One system that is used extensively for this purpose is friend recommendation system (FRS) which recommends users to other users in professional or entertaining online social networks. In this paper, a Dual-Stage Friend Recommendation (FR) model is proposed. The model applies dual-stage methodology on unlabeled data of 1241 users collected from OSN users via online survey platform featuring user interests and activities based upon which users with similar social behavioral patterns are recommended to each other. The model employs techniques including user-based collaborative filtering (UBCF) approach in stage one and graph-based approach friend-of-friend recommendation (FOF) in stage two. The model offers a solution to common problems of FRS, such as data sparsity, using a dimensionality technique called non-negative matrix factorization (NMF) to create a dense representation of the collected data and reduce its sparsity, in addition to providing seamless integration with other FRSs. The evaluation of the FR model shows positive correlation of Pearson correlation coefficient (PCC) as compared the outcomes of using Cosine similarity and Euclidean distance as a baseline.
Pairwise Linkage Disequilibrium Estimation for Polyploids

Many tasks in statistical genetics involve pairwise estimation of linkage disequilibrium (LD). The study of LD in diploids is mature. However, in polyploids, the field lacks a comprehensive characterization of LD. Polyploids also exhibit greater levels of genotype uncertainty than diploids, and yet no methods currently exist to estimate LD in polyploids in the presence of such genotype uncertainty. Furthermore, most LD estimation methods do not quantify the level of uncertainty in their LD estimates. Our paper contains three major contributions. (i) We characterize haplotypic and composite measures of LD in polyploids. These composite measures of LD turn out to be functions of common statistical measures of association. (ii) We derive procedures to estimate haplotypic and composite LD in polyploids in the presence of genotype uncertainty. We do this by estimating LD directly from genotype likelihoods, which may be obtained from many genotyping platforms. (iii) We derive standard errors of all LD estimators that we discuss. We validate our methods on both real and simulated data. Our methods are implemented in the R package ldsep, available on the Comprehensive R Archive Network https://cran.r-project.org/package=ldsep.
Short Communication: Ethnobotanical study of wild and cultivated vegetables in the Eastern Cape Province, South Africa

Abstract. Maroyi A. 2020. Short Communication: Ethnobotanical study of wild and cultivated vegetables in the Eastern Cape Province, South Africa. Biodiversitas 21: 3982-3988. Vegetables are an important component of agricultural biodiversity required for providing a wide range of ecosystem goods and services. The current study was undertaken in the Eastern Cape Province, South Africa to document wild and cultivated vegetables. Research data were collected by means of interviews and field surveys carried out in different seasons with one hundred and thirty-eight randomly selected participants. During the interviews, we documented information on names of edible vegetables, uses, plant parts consumed, and their preparation. A total of 32 species belonging to 26 genera and 15 families were recorded in the study area. The plant families with highest number of vegetable species were Amaranthaceae, Asteraceae, and Solanaceae with at least four species each. The main uses of vegetables identified in the study area were leafy vegetables (59.4%), edible fruits and tubers (21.9% each), culinary herbs or spices (12.5%), edible seeds (9.4%) and edible stems (6.3%). The species which were categorized as important with relative frequency of citation (RFC) values >0.3 were Brassica oleracea, Solanum tuberosum, Cucurbita moschata, Spinacia oleracea, and Cucurbita maxima. Both vegetable species collected from the wild and conventional vegetables cultivated in home gardens are important to livelihoods needs of the local people.
The Frequency of G614 SARS-CoV-2 Variant in India

As reported by us and others previously (1, 2), the D614G mutation appeared in the spike glycoprotein (SPG) of the SARS-CoV-2 (the pathogen behind COVID-19) at the early stages of the pandemic and then G614 containing variant of SARS-CoV-2 became the predominant strain in most human populations across the world. However, one of the most recent reports from India (3) stated the incidence of G614 to be only 26% in the Indian population. This report is contradictory to the information available through the GenBank (4) SARS-CoV-2 sequence deposits made by various laboratories from India. The above stated report currently circulating in the Indian media is likely to create a public perception that the Indian strain is less contagious and such a notion could be harmful to people’s welfare. In view of this concern we have re-evaluated, updated and recalculated the incidence of the G614 variant in the Indian population by analyzing 395 Indian SARS-CoV-2 genomic sequences available in the GenBank as of June 26, 2020. In our analysis we have categorized the samples by the month in which the samples were collected. We have used an alignment-free software tool named Compare (5, 6), and the Basic Local Alignment Search Tool (BLAST) (7) in the present analysis. We finally inspected each of the 395 sequences physically for the presence of aspartic acid (D) or glycine (G) at the 614th position of the spike glycoprotein. We analyzed an Australian cohort in parallel for comparison. We have found that the prevalence of G614 variant in the Indian samples for the month of June 2020 is 90.6%. The trends are similar with the Australian samples.
DPPH Radical Scavenging Activity and Polyphenols in the Pods of 3 Common Beans

The pods of common beans (Phaseolus vulgaris) are rich in various nutrients, and they could therefore be important parts of the human diet. In the present study, we have analyzed the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity and the contents of polyphenols, anthocyanin, vitamin C, and carotenoid in the pods of 3 varieties of common beans. French beans had the highest DPPH radical scavenging activity and polyphenol contents among the three varieties. The anthocyanin content was 3.93 mg/g D.W. in French beans, but not detected in bush beans and Romano beans. The vitamin C and carotenoid contents ranged from 0.45-1.96 and 0.31-0.60 mg/g D.W. in the pods of these common beans, respectively. Moreover, we found French beans contained monomeric (Fra.I), oligomeric (Fra.II), and polymeric (Fra.III) polyphenols (67%, 31%, and 2%, respectively). In contrast, monomeric polyphenols are the main polyphenols (Fra.I > 96%) in bush beans and Romano beans. Oligomeric polyphenols (Fra.II) show higher DPPH radical scavenging activity than monomeric ones (Fra.I) in French beans. Oligomeric polyphenols with both B-type and A-type bonds were present in Fra.II from French beans. We identified malvidin 3,5-diglucoside as the anthocyanin in French beans by HPLC-PDA/MS. In summary, as a vegetable, French beans have the highest antioxidant activity among the three varieties of common bean pods studied here.
The Herpetofauna of Nallamala Hills, Eastern Ghats, India: An Annotated Checklist, With Remarks on Nomenclature, Taxonomy, Habitat Use, Adaptive Types and Biogeography

We present an inventory of the herpetofauna of the Nallamala Hills, Eastern Ghats, south-eastern India. The fauna, as currently known, includes 20 species of amphibians belonging to 14 genera in six families and 64 species of reptiles belonging to 42 genera in 15 families.
Liquid-liquid phase separation of tau driven by hydrophobic interaction facilitates fibrillization of tau

Amyloid aggregation of tau protein is implicated in neurodegenerative diseases, yet its facilitating factors are poorly understood. Recently, tau has been shown to undergo liquid liquid phase separation (LLPS) both in vivo and in vitro. LLPS was shown to facilitate tau amyloid aggregation in certain cases, while independent of aggregation in other cases. It is therefore important to understand the differentiating properties that resolve this apparent conflict. We report on a model system of hydrophobically driven LLPS induced by high salt concentration (LLPS-HS), and compare it to electrostatically driven LLPS represented by tau-RNA/heparin complex coacervation (LLPS-ED). We show that LLPS-HS promotes tau protein dehydration, undergoes maturation and directly leads to canonical tau fibrils, while LLPS-ED is reversible, remains hydrated and does not promote amyloid aggregation. We show that the nature of the interaction driving tau condensation is the differentiating factor between aggregation-prone and aggregation-independent LLPS.
Military, Race, and Urbanization: Lessons of Environmental Injustice from Las Vegas, Nevada

Environmental justice scholarship argues state power perpetrates environmental inequalities, but less is known about the U.S. Military’s impact on local urban environmental inequalities. To evaluate the role of the military in contributing to environmental health disparities, I draw on the case study of Las Vegas, Nevada, a southwestern city with active military sites. The analysis uses environmental health, demographic, and Geographic Information System (GIS) data from federal and county agencies. Findings from spatial error models support environmental inequality and treadmill of destruction hypotheses by demonstrating that census tracts in closer proximity to military areas have greater estimated cancer risk from air toxics. Census tracts with a higher percent of poor and Latinx residents, independent of their proximity to military areas, have an additional increase in exposure to air pollution. The case study of Las Vegas offers important lessons of environmental injustice on Latinx environmental health vulnerability and military sites in urban areas.
The Effect of Using Music Classic (Mozart) towards Student Anxiety Before The Exams

This research aimed to discover the level of anxiety in students before the exam and the effect of music classic (Mozart) to reduce such anxiety. The study was conducted at SMP Negeri 1 Ciruas with students with a high level of anxiety, which has been revealed from the results of the anxiety scale questionnaire using a purposive sampling technique with a total of 68 respondents. This research was used with an experimental method consisting of an experimental group and a control group. From the treatment, the results showed pre-test 12.55 in the high category and post-test 7.852 in the medium category. This shows changes in the results before and after the treatment is given. It can be concluded that the effect of the use of music (Mozart) can reduce student anxiety before the test.
Effect of pit-composting on root-knot nematode (Meloidogyne incognita and M. javanica) population densities and yield of tomato under field conditions

Abstract Soil amendments, constituting of various plant and animal sources, were evaluated in pits for their effects on Meloidogyne spp. infecting tomato in comparison to the synthetic nematicide fenamiphos and the untreated control. Fifty-six days after transplanting, soil and root samples were collected for nematode extraction and counting while fruit mass and the number of fruits were also recorded and the average yield per treatment calculated. The plant-based pit-composting treatments decreased nematode population densities, from 43% to 94%; with the citrus fruit-pit compost being the most effective (reducing nematode densities by up to 94%). Conversely, chicken and cattle manure treatments generally resulted in increased nematode densities (up to 141% and 159%, respectively). Increases in tomato yield ranged from 7% to 94% in response to compost, cattle and chicken manure treatments while all pit-composting significantly enhanced yield ranging from 100% to 400%; except for the shrub-pruning pit compost which decreased yield. Pit-composting is a promising strategy that can be used by especially subsistence farmers to grow crops sustainably in the presence of lower nematode pest densities.
Deer Reduction Is a Cornerstone of Integrated Deer Tick Management

Deer reduction must be considered in any discussion of effective community level intervention to reduce the risk of Lyme disease. There were three main factors that allowed the epidemic to emerge (reforestation, suburbanization, and dense deer herds). Only deer density may be targeted in efforts to reduce, over the long term, the risk landscape to what it was prior to the epidemic. The majority of studies analyzing the effect of deer reduction as a mode of intervention against Lyme disease demonstrate great reductions in the density of deer ticks, a prerequisite for local risk for acquiring infection. Zoonotic transmission of the deer tick microbial guild requires tick reproduction and infection of the resulting ticks. Deer reduction targets tick reproduction without which there is no enzootic transmission cycle. Arguments against the utility of deer reduction as a mode of intervention mistakenly conflate its potential efficacy with the sociopolitical obstacles for implementing such an action. In addition, some confusion exists as to the goals of deer reduction as a mode of intervention: it will not reduce risk in the short term over large areas, but is intended to reduce risk over time and in discrete sites. Deer reduction would be most effective as part of an integrated tick management program that comprises short-term and long-term approaches.
Assessment of Heavy Metal and Mineral Levels in Hair Samples from Dogs with Mammary Neoplasms

Neoplasms involve abnormal tissue growths developing in an uncoordinated, persistent manner, faster than adjacent normal tissues. Several researchers have studied the possible implications of heavy metals and mineral levels on human mammary neoplasms using hair analysis. The study’s objective was to assess the levels of heavy metals and other mineral elements in dogs suffering from mammary neoplasms. Hair samples were analyzed by Inductively Coupled Plasma Mass Spectrometry (ICP-MS). All analyzed elements registered higher levels in clinically healthy dogs. The interaction between health status and keeping conditions significantly influenced the levels of Al, Ca, Fe, Mg, Ni, Co, Pb, and V. Concurrently, dogs with mammary neoplasms living outdoors registered the highest levels for most minerals, compared to dogs with mammary neoplasms living indoors, suggesting a possible implication of pollution.
Bi-Directional Static Load Tests of Pile Models

This work examined a new method of bi-directional static load testing for piles, referencing the Osterberg test. Measurements were taken, on a laboratory scale, using six models of piles driven into a box filled with sand. This method allowed for separate measurements of pile base and pile shaft bearing capacities. Based on the results, the total pile bearing capacity and equivalent Q–s diagrams were estimated. The results obtained show that the structure of the equivalent curve according to Osterberg is a good approximation of the standard Q–s curve obtained from load tests, except for loads close to the limit of bearing capacity (those estimates are also complicated by the inapplicability and ambiguity of a definition of the notion of limit bearing capacity); the equivalent pile capacity in the Osterberg method represents, on average, about 80% of the capacity from standard tests.
Strengthening Organizational Citizenship Behavior Through The Implementation of Transformational Leadership, Organizational Culture, and Compensation System

This research intends to determine the level of influence of transformational leadership, organizational culture, and compensation systems on Organizational Citizenship Behavior (OCB) within the Judicial Commission employee. The respondents of this study were 130 employees of the Judicial Commission who were civil servants. The technique of data collection is done by meeting respondents directly and distributing questionnaires to employees. Data were analyzed using SPSS version 25.0. The analysis shows that Transformational Leadership, Organizational Culture, and Compensation significantly influence OCB. This study also shows that organizational culture is the dominant variable and influence on OCB within the Judicial Commission employees.
Quotation errors related to the Proximal Fracture of the Humerus Evaluation by Randomization (ProFHER) study

Aim The aim of this study was to assess the accuracy of quotations of the Proximal Fracture of the Humerus Evaluation by Randomization (ProFHER) study in the published literature. Methods A literature search was performed from March 2015 to November 2019 to identify all papers that reference ProFHER since its publication. Full text articles were reviewed by two independent reviewers using a validated framework of assessing quotation errors. A kappa co-efficient was calculated to assess interobserver reliability of the reviewers. Results There were 260 individual ProFHER quoted references within the 138 included articles. We identified 35/260 quotation errors (13%). Of these, 10/35 (29%) were major quotation errors and 25/35 (71%) minor quotation errors. There was substantial interobserver agreement when errors were classified. Of the 10 major errors, six quotations were not substantiated by the results of ProFHER and three were unrelated to ProFHER. One paper contained a quotation error that contradicted the results of ProFHER. Of the 25 minor errors, 19 oversimplified or generalised the conclusions of ProFHER and six contained numerical or grammatical errors. Conclusion The current study demonstrated substantial inaccuracies in quotations of the Proximal Fracture of the Humerus Evaluation by Randomization study. Vigilance is recommended when quoting the literature and reviewing submitted papers in order to prevent the perpetuation of misquoted data.
Choosing what to choose from: Preference for inclusion over exclusion when constructing consideration sets from large choice sets

Decision-making is a two-stage process, consisting of, first, consideration set construction and then final choice. Decision makers can form a consideration set from a choice set using one of two strategies: including the options they wish to further consider or excluding those they do not wish to further consider. The authors propose that decision makers have a relative preference for an inclusion (vs. exclusion) strategy when choosing from large choice sets, and that this preference is driven primarily by a lay belief that inclusion requires less effort than exclusion, particularly in large choice sets. Study 1 demonstrates that decision makers prefer using an inclusion (vs. exclusion) strategy when faced with large choice sets. Study 2 replicates the effect of choice set size on preference for consideration set construction strategy and demonstrates that the belief that exclusion is more effortful mediates the relative preference for inclusion in large choice sets. Studies 3 and 4 further support the importance of perceived effort, demonstrating a greater preference for inclusion in large choice sets when decision makers are primed to think about effort (vs. accuracy; study 3) and when the choice set is perceived as requiring more effort due to more information being presented about each alternative (vs. more alternatives in the choice set; study 4). Finally, study 5 manipulates consideration set construction strategy, showing that using inclusion (vs. exclusion) in large choice sets leads to smaller consideration sets, greater confidence in the decision process, and a higher quality consideration set.