Miracle-dz/UniFAR-FTUs huggingface dataset:
Cavity flow characteristics and applications to kidney stone removal

Abstract Ureteroscopy is a minimally invasive surgical procedure for the removal of kidney stones. A ureteroscope, containing a hollow, cylindrical working channel, is inserted into the patient's kidney. The renal space proximal to the scope tip is irrigated, to clear stone particles and debris, with a saline solution that flows in through the working channel. We consider the fluid dynamics of irrigation fluid within the renal pelvis, resulting from the emerging jet through the working channel and return flow through an access sheath. Representing the renal pelvis as a two-dimensional rectangular cavity, we investigate the effects of flow rate and cavity size on flow structure and subsequent clearance time of debris. Fluid flow is modelled with the steady incompressible Navier–Stokes equations, with an imposed Poiseuille profile at the inlet boundary to model the jet of saline, and zero-stress conditions on the outlets. The resulting flow patterns in the cavity contain multiple vortical structures. We demonstrate the existence of multiple solutions dependent on the Reynolds number of the flow and the aspect ratio of the cavity using complementary numerical simulations and particle image velocimetry experiments. The clearance of an initial debris cloud is simulated via solutions to an advection–diffusion equation and we characterise the effects of the initial position of the debris cloud within the vortical flow and the Péclet number on clearance time. With only weak diffusion, debris that initiates within closed streamlines can become trapped. We discuss a flow manipulation strategy to extract debris from vortices and decrease washout time.
Generalized Quadrature Spatial Modulation and its Application to Vehicular Networks With NOMA

Quadrature spatial modulation (QSM) is recently proposed to increase the spectral efficiency (SE) of SM, which extends the transmitted symbols into in-phase and quadrature domains. In this paper, we propose a generalized QSM (GQSM) scheme to further increase the SE of QSM by activating more than one transmit antenna in in-phase or quadrature domain. A low-complexity detection scheme for GQSM is provided to mitigate the detection burden of the optimal maximum-likelihood (ML) detection method. An upper bounded bit error rate is analyzed to discover the system performance of GQSM. Moreover, by collaborating with the non-orthogonal multiple access (NOMA) technique, we investigate the practical application of GQSM to cooperative vehicular networks and propose the cooperative GQSM with OMA (C-OMA-GQSM) and cooperative GQSM with NOMA (C-NOMA-GQSM) schemes. Computer simulation results verify the reliability of the proposed low-complexity detection as well as the theoretical analysis, and show that GQSM outperforms QSM in the entire SNR region. The superior BER performance of the proposed C-NOMA-GQSM scheme make it a promising modulation candidate for next generation vehicular networks.
Efficiency of Plantain Peels and Guinea Corn Shaft for Bioremediation of Crude Oil Polluted Soil

The efficiency of some agro-waste samples - plantain peels (PP) and guinea corn shaft (GCS) as amendments for the bioremediation of crude oil polluted soil was studied for 56 days. The PP and GCS samples were found to contain nutrient, heterotrophic and crude oil degrading bacteria. The heterotrophic bacterial types and counts were found to be higher than the crude oil utilizing bacterial types and counts with amended samples having the highest values. The crude oil utilizing bacterial counts for the amended and non-amended samples ranged from 3.35±0.01 x 105 –cfu/g to 15.10±0.01 x 105 cfu/g and 2.30±0.01 x 105 cfu/g to 4.90±0.01 x 105 cfu/g respectively. The agro-waste samples (PP and GCS) showed a total nitrogen content ranging from 0.44% to 0.55%, the potassium content ranged from 5.88 to 6.13 Meq/ 100g while the phosphorus contents ranged from 0.28 to 0.43mg/kg. The carbon, nitrogen and phosphorus content of the soil used for the bioremediation studies were 1.83%, 0.09% and 9.64mg/kg respectively. There were also appreciable levels of other trace elements. The soil samples used for the study were composed of 81.6% clay, 16.4 % sand and 2% silt. The pH of the amended samples during the period of study ranged from 7.03 to 8.62. The total petroleum hydrocarbon (TPH) in the samples decreased from day zero to day 56. The reduction in total petroleum hydrocarbon was highest in GCS amended samples when compared with the PP amended samples and controls. These findings showed that agro-wastes (PP and GCS) significantly improved the rate of petroleum hydrocarbon biodegradation in polluted soil.
Being Moved or Being Satisfied? The Effect of Unexpected Acts of Personal Kindness in Hospitality Service Encounters

Prior research has revealed that merely satisfying customers is not sufficient to secure a lasting competitive advantage during service encounters in the hospitality industry. We propose and demonstrate that hospitality providers can evoke feelings of “being moved” in their customers by providing unexpected acts of personal kindness rather than merely satisfying them by meeting their expectations. The distinct emotional signature associated with being moved, in turn, significantly increases customers’ loyalty and commitment (LoC) and the extent to which they engage in positive word of mouth (WoM), on top on what can be achieved by simply satisfying customers. We show that the joy/happiness component of being moved significantly increases LoC and WoM, and that this effect is shared with satisfaction. Moreover, surprise and guilt, which are emotions uniquely associated with being moved, also both significantly increase customers’ LoC and WoM. The positive effect of being moved can be enhanced by minimizing shame, an emotion occasionally associated with being moved. We also show that being moved has a positive effect on how customers perceive the workplace environment of an organization and the extent to which a hospitality organization is perceived as socially and environmentally responsible, which are core measures of organizations’ corporate social responsibility efforts.
Cocreation Experience in Peer-to-Peer Accommodations: Conceptualization and Scale Development

Most value cocreation measurement scales have focused on physical cocreation behavior rather than the cocreation experience. This study aims to conceptualize the construct of cocreation experience and develop a corresponding measurement scale in peer-to-peer accommodations using a sequential mixed-methods approach. The multistage scale development procedure generated a measurement containing six reflective dimensions: authenticity, autonomy, control, learning, personalization, and connection. This study contributes to the literature by conceptualizing and operationalizing the construct of the cocreation experience in peer-to-peer accommodations. Findings provide insight into customers’ shared experiences and enable tourism and hospitality practitioners to improve the customer experience.
SSR Based Genetic Diversity In Indian Flue-Cured Virginia Tobacco (Nicotiana tabacum L.) Cultivars

The genetic diversity among 24 Flue-cured Virginia (FCV) tobacco cultivars was investigated using 20 SSR primers. Distinct polymorphism was noticed among closely related cultivars studied indicating the robust nature of microsatellites in revealing polymorphism. A total of 78 amplicons were produced of which 48% were polymorphic among the varieties. The pairwise similarity among the varieties ranged from 0.54 to 0.91, indicated a broad genetic base of the tested genotypes which could be due to use of divergent parents including exotic introductions and local selections in breeding for different quality and physiological traits. Varieties developed indigenously through different breeding methods were clustered together whereas exotic introductions and their derivatives were grouped together separately. Genetic relationship among the FCV tobacco varieties based on polymorphic DNA profile largely corresponded with parentage. The SSR based analysis in the present study suggested that the Indian tobacco breeding has been successful in developing varieties with a relative broader genetic base.
Design and Comparative Analysis of New Personalized Recommender Algorithms with Specific Features for Large Scale Datasets

Nowadays, because of the tremendous amount of information that humans and machines produce every day, it has become increasingly hard to choose the more relevant content across a broad range of choices. This research focuses on the design of two different intelligent optimization methods using Artificial Intelligence and Machine Learning for real-life applications that are used to improve the process of generation of recommenders. In the first method, the modified cluster based intelligent collaborative filtering is applied with the sequential clustering that operates on the values of dataset, user′s neighborhood set, and the size of the recommendation list. This strategy splits the given data set into different subsets or clusters and the recommendation list is extracted from each group for constructing the better recommendation list. In the second method, the specific features-based customized recommender that works in the training and recommendation steps by applying the split and conquer strategy on the problem datasets, which are clustered into a minimum number of clusters and the better recommendation list, is created among all the clusters. This strategy automatically tunes the tuning parameter λ that serves the role of supervised learning in generating the better recommendation list for the large datasets. The quality of the proposed recommenders for some of the large scale datasets is improved compared to some of the well-known existing methods. The proposed methods work well when λ = 0.5 with the size of the recommendation list, |L| = 30 and the size of the neighborhood, |S| < 30. For a large value of |S|, the significant difference of the root mean square error becomes smaller in the proposed methods. For large scale datasets, simulation of the proposed methods when varying the user sizes and when the user size exceeds 500, the experimental results show that better values of the metrics are obtained and the proposed method 2 performs better than proposed method 1. The significant differences are obtained in these methods because the structure of computation of the methods depends on the number of user attributes, λ, the number of bipartite graph edges, and |L|. The better values of the (Precision, Recall) metrics obtained with size as 3000 for the large scale Book-Crossing dataset in the proposed methods are (0.0004, 0.0042) and (0.0004, 0.0046) respectively. The average computational time of the proposed methods takes <10 seconds for the large scale datasets and yields better performance compared to the well-known existing methods.
Self-reported hearing difficulty, subjective well-being and social relationships among older adults in Ghana

Background: Hearing difficulty negatively impacts individual relationships with family and friends and other social relationships. Objective:This research was conducted to determine the factors significantly influencing self-reported hearing difficulty (SHD) and further to assess the influence of SHD on social relationship among older adults in Ghana. Methods: World Health Organization’s Studyon Global AGEing and Adult Health Ghana dataset for older adults 50 yr. and above was used for this study. Social relationship and hearing difficulty were the primary and secondary outcomes respectively. A modified Poisson with Mahalanobis distance matching within propensity caliper was employed to determine the different influences on social relationships by SHD. All analysis was performed using the statistical software Stata Version 15 and with a confidence interval (CI) of 95%. Results: The prevalence of SHD among older adults in Ghana was 19.5% (95%CI=16.9-22.3). Rao-Scott test of association showed that all covariates (demographic characteristics, self-rated health, quality of life, life satisfaction and unhealthy lifestyle) were significantly associated with SHD (p<0.05). Sensitivity analysis showed that, SHD predicted a significantly decreased probability count of social relationship among older adults with SHD [adjusted prevalence ratio(95%CI)=-0.08(-0.15-0.02)]. Binary and ordinal outcomes showed that among the older adults with SHD, only 35% and 70% respectively were likely to have a good social relationship [adjusted odds ratio (aOR) (95%CI)=0.65(0.46-0.90) and aOR (95%CI)=0.70(0.51-0.96)respectively]. Conclusion: Overall, the prevalence of hearing loss in older adults in Ghana was 19.5%, and was higher among older adult females. This high prevalence of SHD had significant negative effect on social relationships among the older adults. In line with global efforts to reduce effect of hearing loss, it is imperative that, clinical assessment of hearing loss should always consider the social characteristics of the older adult.
Water-based highly conductive graphene inks for fully printed humidity sensors

Conductive graphene inks have attracted extensive research interests for printed electronics due to the excellent electrical and mechanical properties of graphene. While the traditional organic solvents used for graphene inks will result in high environmental cost, environmentally friendly solvents are required for conductive graphene inks. In this work, we demonstrate a highly conductive aqueous graphene ink printed on a paper substrate using screen printing technique. The well-tuned rheological properties of the graphene ink enable the printed lines to achieve a high resolution as fine as 45 µm in width. After being dried at 70 °C and roller compressed, the printed graphene lines present a high conductivity, up to 4.23 × 104 S m−1 at 3 µm thickness. It also shows an excellent bending stability during the roller compression process, which is compatible for large-scale manufacturing. Combining with inkjet-printed graphene oxide as the sensing layer, the graphene lines are exploited as the electrodes for a fully printed humidity sensor on the paper substrate. Such a low drying temperature, high printing resolution and low-cost printing method offers an example that two-dimensional materials are cooperatively utilized for fully printed flexible electronic devices.
DETERMINATION OF DIFFUSIVITY AND SOLUBILITY IN TWO PHASE SYSTEMS

A method for determining diffusivity and solubility in two-phase systems was developed. The method involves following the concentration of the diffusing component, or sorbate, in response to a step change in that concentration in a system in which total volume and temperature are constant. Both solubility and diffusivity of the sorbate in the solvent, or sorbent, are determined simultaneously in a single experiment. The method is applicable to solid or liquid sorbent phases. The sorbate may be gas or liquid. Equations are presented for analysis of experimental data. (M.C.G.)
Characterization of the mitogenome of Cynoglossus Senegalensis (Pleuronectiformes: Cynoglossidae)

Abstract The complete mitogenome of the Senegalese tonguesole, Cynoglossus senegalensis was determined by Illumina MiSeq platform. The complete mitochondrial genome of C. senegalensis was 16,519 bp in length. The mitochondrial genome of C. senegalensis showed a cynoglosidae-characteristic gene organization, in which translocation of control region to the position between ND1 and tRNA-Gln gene, and also inversions in tRNA-Gln gene from L-strand position to H-strand position. Phylogenetic analysis showed that C. senegalensis is most closely related to C. sinicus and S.bilineatus, which supports the previous result that genus Cynoglossidae is evolutionary paraphyletic.
Effect of Physical Exercise on the Release of Microparticles with Angiogenic Potential

Cellular communication has a fundamental role in both human physiological and pathological states and various mechanisms are involved in the crosstalk between organs. Among these, microparticles (MPs) have an important involvement. MPs are a subtype of extracellular vesicles produced by a variety of cells following activation or apoptosis. They are normally present in physiological conditions, but their concentration varies in pathological states such as cardiovascular disease, diabetes mellitus, or cancer. Acute and chronic physical exercise are able to modify MPs amounts as well. Among various actions, exercise-responsive MPs affect angiogenesis, the process through which new blood vessels grow from pre-existing vessels. Usually, the neo vascular growth has functional role; but an aberrant neovascularization accompanies several oncogenic, ischemic, or inflammatory diseases. In addition, angiogenesis is one of the key adaptations to physical exercise and training. In the present review, we report evidence regarding the effect of various typologies of exercise on circulating MPs that are able to affect angiogenesis.
Biochemical Differences between Bolted and Non-Bolted Onions

The present experiment was conducted to know the biochemical differences between bolted and non-bolted onion of Indian varieties. Onion is a very important vegetable consumed for its flavour and health benefits. Bolting, which is an undesirable character in onion bulb production, produces bulbs with central hard and hollow cellulosic stalk and makes them unmarketable. In this research four different varieties of onion (three red onion varieties (viz; Bhima Kiran; Bhima Shakti; N-2-4-1) and one white variety (Bhima Shweta)) were studied to verify differences between bolted and nonbolted bulbs. The results showed significant difference in total soluble solids and total phenol content in bolted and non-bolted onions. In bolted onion bulbs, total soluble solid content varied from 11.2 to 11.83 °Brix and 12.0 to 12.9 °Brix in non-bolted onion varieties. In bolted onion, the total phenol content was 27.0, 52.2, 61.3 and 65.8 mg GAE/100 g in Bhima Shweta, Bhima Kiran, N-2-4-1 and Bhima Shakti respectively. The phenol content varied from 26.2 to 48.7 mg GAE/100 g in non-bolted onion with lowest in Bhima Shweta and highest in N-2-4-1. No significant difference was observed for moisture content and total flavonoid content in bolted and non-bolted onion. Short Research Article Gorrepati et al.; JEAI, 42(6): 30-35, 2020; Article no.JEAI. 58690 31
Short Communication: Genetic structure of Longtail Tuna Thunnus tonggol (Bleeker, 1851) in Java Sea, Indonesia

Al Malik MD, Pertiwi NPD, Sembiring A, Yusmalinda NLA, Ningsing EY, Astarini IA. 2020. Short Communication: Genetic structure of Longtail Tuna Thunnus tonggol (Bleeker, 1851) in Java Sea, Indonesia. Biodiversitas 21: 3637-3643. Thunnus tonggol (Longtail Tuna) is an economically important fish found in Indonesia waters, however, the information regarding this fish is lacking. Known to be a neritic fish and found in shallow water, Java Sea is one of the ideal habitats for T. tonggol species. Due to high fishing rates activities in Java Sea, a better management plan to ensure the conservation and fisheries sustainability around this area is needed, especially to protect T. tonggol population. In order to complete the Indonesian tuna data, we aim to study the diversity and genetic structure of T. tonggol in Java Sea at three different locations; i.e. Semarang, Banjarmasin, and Jakarta. In this study, population genetic methods with the marker of mitochondrial DNA (mtDNA) control region were used in population structure analysis. A total of 115 specimens were collected from the fish market around the area of study locations and amplified using polymerase chain reaction (PCR) and sequenced using Sanger methods. The result showed genetic diversity (Hd) value of 0.99366, and nucleotide diversity (π) value of 0.01906. Both of these values indicated high genetic diversity. Population analyses using Analysis of Molecular Variance (AMOVA) showed nonsignificant differences between the three populations of study (mixing population), with the ΦST value of 0,00375 (p-value > 0.05). Based on this result, the fisheries management for T. tonggol in Java Sea needs to be managed as one single population management.
Spontaneous Tumor Lysis Syndrome in Myeloproliferative Disorder: A Rarely Reported Clinical Entity

Tumor lysis syndrome (TLS) is an oncologic emergency resulting from a massive breakdown of tumor cells. It causes electrolyte imbalance and acute renal failure. It occurs after the initiation of chemotherapy. Spontaneous tumor lysis syndrome is seen in Burkitt's lymphoma, acute lymphoid leukemia, diffuse large B-cell lymphoma, and solid tumors like breast and prostate cancer. Spontaneous tumor lysis syndrome is exceedingly rare in patients with myeloproliferative disorders. We report a rare case of spontaneous tumor lysis in an 82-year-old female patient with a myeloproliferative disorder.
TagML—An Implementation Specific Model to Generate Tag-Based Documents

This article describes TagML, a method to generate collections of XML documents using model-to-model (M2M) transformations. To accomplish this goal, we define the TagML meta-model and the TagML-to-XML model-to-text transformation. While TagML models represent the essential characteristics of collections of XML documents, the TagML-to-XML transformation generates the textual representation of collections of XML documents from TagML models. This approach enables developers to define model-to-model transformations to generate TagML models. These models are turned into text applying the TagML-to-XML transformation. Consequently, developers are able to use declarative languages to define model-to-text transformations that generate XML documents, instead of traditional archetype-based languages to define model-to-text transformations that generate collections of XML documents. The TagML model editor as well as the TagML-to-XML transformation were developed as Eclipse plugins using the Eclipse Modeling Framework. The plugin has been developed following the Object Modeling Group standards to ensure the compatibility with legacy tools. Using TagML, unlike other previous proposals, implies the use of model-to-model transformations to generate XML documents, instead of model-to-text transformations, which results on an improvement of the transformation readability and reliability, as well as a reduction of the transformation maintenance costs. The proposed approach helps developers to define transformations less prone to errors than using the traditional approach. The novelty of this approach is based on the way XML documents are generated using model-to-model transformations instead of traditional model-to-text transformations. Moreover, the simplicity of the proposed approach enables the generation of XML documents without the need for any transformation configuration, which does not penalize the model reuse. To illustrate the features of the proposal, we present the generation of XHTML documents using UML class diagrams as input models. The evaluation section demonstrates that the proposed method is less prone to errors than the traditional one.
The complete chloroplast genome sequence of Trapa bicornis Osbeck (Lythraceae)

Abstract Trapa (Lythraceae) is an aquatic plant genus widely distributed in the old world. Although Trapa species have great edible and medical value, studies related to species identification and utilization are still lacking. Here, we reported the complete chloroplast genome sequence of a cultivated species, T. bicornis. The chloroplast genome size of T. bicornis was 155,539 bp, consisting of a pair of inverted repeat (IR) regions (24,386 bp), separated by a large single copy (LSC) region (88,493 bp) and a small single copy (SSC) region (18,274 bp). A total of 130 genes were annotated, including 85 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenomic analysis supported the monophyly of Trapa, and a sister relationship between T. bicornis and T. natans.