Miracle-dz/UniFAR-FTUs huggingface dataset:
Anti-Toxoplasma gondii Antibodies: Prevalence and Risk Factors among Pregnant Women Accessing Antenatal Care in Some Primary Health Centers in Jos Metropolis, Nigeria

Ocheme Julius Okojokwu1*, Innocent Ajegba Onaji2, Entonu Elijah Entonu1, Bashiru Shafa Abubakar3, Maryam Bisola Adebayo4, Nafisa Abduljalil Adamu5, Daniel Iduh Ejembi1, Ibrahim Abubakar Yusuf4, Amos Obaje Ogaji1, Murna Ahmed Ali1, Joseph Aje Anejo-Okopi1 1Department of Microbiology, Faculty of Natural Sciences, University of Jos, Plateau State, Nigeria; 2Department of Pharmaceutical Microbiology, Faculty of Pharmaceutical Sciences, University of Jos, Plateau State, Nigeria; 3Department of Zoology, Faculty of Natural and Applied Sciences, Nasarawa State University, Keffi, Nasarawa State, Nigeria; 4Department of Microbiology, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Nigeria; 5Department of Microbiology, Federal University Dutsin-Ma, Katsina State, Nigeria Email: okojokwuoj@gmail.com
Optimal retrieval in puzzle‐based storage with heuristic search and tabulation

Puzzle‐based storage (PBS) systems provide a space efficient solution for storage and retrieval of unit loads (e.g., cars, boxes) in the very land‐expensive urban environment. In this work, we formulate a highly generic optimal retrieval problem, consisting of any number of loads to be retrieved, and an arbitrary number of I/O points and empty locations (escorts) on a two‐dimensional lattice graph. We theoretically analyze the characteristics of the problem and propose a set of graph search algorithms to tackle the inherent complexities thereof. In contrast to existing work in the field, we investigate the runtime‐memory tradeoff pertaining to our problem, highlighting the possible benefits and limitations of our heuristic search and tabulation techniques. Our results demonstrate that our algorithms are capable of optimally solving moderate‐sized PBS problems using a limited amount of memory and in a reasonable amount of time.
Public health needs GIScience (like now)

During the last 20 years we have seen the reemergence of diseases; emergence of new diseases in new locations and witnessed outbreaks of varying intensity and duration. Spatial epidemiology plays an important role in understanding the patterns of disease and how they change over time and across space. The aim of this paper is to bring together a public health and geospatial data science perspective to provide a framework that will facilitate the integration of geographic information and spatial analyses at different stages of public health response so that these data and methods can be effectively used to enhance surveillance and monitoring, intervention strategies (planning and implementation of a response) and facilitate both shortand long-term forecasting. To demonstrate elements of this framework and how it can be utilized, we selected three case studies ranging from the current the global COVID-19 Coronavirus pandemic of 2020 to more historical examples such as the John Snow Cholera outbreak of 1854 and the Ebola outbreak of 2014 in West Africa. A variety of methods including spatial descriptive statistics, as well as methods for analysing patterns were used. The examples we provide can reveal sources of infection, connectivity between locations, delineate zones of containment and show the spread of an outbreak globally and locally across space and time.
Innovation strategy or policy pressure? The motivations of BIM adoption in China’s AEC enterprises

ABSTRACT As a set of new technologies to enhance life-cycle construction management processes, Building Information Modelling (BIM) has been introduced to China’s Architecture, Engineering, and Construction (AEC) industries. Adopting the framework of Technology-Organization-Environment (TOE) and the theory of innovation diffusion, this study provides an empirical analysis of BIM adoption and its impact on corporation performance, using a time series panel sample of 1109 observations of AEC enterprises listed in China’s A-share stock market. This study reveals that the decision of BIM adoption could be driven by corporate innovation strategy and government policy pressure. Overall, BIM implementation brings positive financial performance to the BIM adopted enterprises, but the differences of BIM performance between innovation strategy-led and policy-driven adoption are only significant in enterprises of state-controlled. This paper contributes to the body of knowledge in enriching the TOE framework by adding innovation strategy motivations in the organization context and government policy forces to the environment context. In addition, the findings of this paper might help policy makers around the world improve the acceptance of BIM technology and evaluate the effects of BIM policy.
Interfacial microstructure and mechanical property in friction stir welded Mg/Al joints under low rotation speed

The variation of interface microstructure along thickness direction and the associated effects on tensile strength were studied. Thin intermetallic compounds (IMC) layer, ranging from 700 nm to 2 μm, formed through solid-state diffusion instead of eutectic reaction under low rotation speed of 300 rev min−1. It was consisted of Al3Mg2 sublayer and Mg17Al12 sublayer, with Mg17Al12 sublayer thinner than Al3Mg2 sublayer. IMC layer in the upper part is thinner than that in the middle part, and it is continuous in the upper and middle part while discontinuous near the bottom surface. Despite the difference in interface microstructure, the bonding strengths of upper part and middle part are similar, proving the important effects of macroscopic geometrical configuration of the interface.
Facile Preparation and Characterization of Modified Polyurethane Sponge for Oil Absorption

Oil spills have devastating effects on the environment. Utilization of absorbents for oil spill cleanup has been practiced; however, the development of cheap, reliable, environmentally friendly absorbents is both desirable and urgent. In this study, we illustrate a novel oil absorbent fabricated by modifying polyurethane (PU) sponges with TiO2 sol. The attachment of TiO2 nanoparticles reduced the hydrophilicity of the modified PU sponge significantly by increasing its surface roughness and changing the chemical composition of the surface. The modified PU sponges exhibited oil absorption capacity of 95–110 g/g with negligible water uptake under both static and dynamic conditions. The modified PU sponge was found to be reusable up to 12 cycles holding 70% of its initial uptake capacity. The modified PU sponges can be effectively used in oil spill cleanup.
Comparison of Nitrogen Treatment by Four Onsite Wastewater Systems in Nutrient-Sensitive Watersheds of the North Carolina Coastal Plain

Wastewater may be a source of nitrogen (N) to groundwater and surface waters if not effectively treated. In North Carolina, onsite wastewater systems (OWSs) are used by 50% of the population for wastewater treatment, but most OWSs are not routinely monitored. There is a lack of information regarding the N contributions from OWSs to water resources. Four sites with OWSs were instrumented with groundwater wells near their drainfield trenches to compare N concentrations in groundwater to concentrations in wastewater and to determine the N treatment efficiency of the systems. Two OWSs (Site 200 and 300) were less than 1 year old, and two (Site 100 and 400) were more than 10 years old at the start of the study. Two OWSs (Site 100 and 200) used pressure dosing, while two OWSs (Site 300 and 400) used gravity distribution. The mean N treatment efficiency of the four OWSs was 77%. The new OWSs were more efficient (92%) relative to the older OWSs (62%) at reducing N concentrations. Similar N treatment efficiencies were observed when pooling data for the pressure dosed (77%) and gravity (79%) OWSs. Each OWS influenced groundwater by causing increases in N concentrations. It is important that new OWSs are installed at a shallow depth and with sufficient separation to groundwater to promote the aerobic treatment of wastewater. Remediation strategies including the installation of permeable reactive barriers or the use of media filters may be needed in some areas to reduce N transport from existing OWS.
La planeación participativa comunitaria como herramienta metodológica para la conformación de sujetos colectivos rurales

This article presents the results derived from the execution of a research-action project under the method of diagnosis and community participatory planning, performed in 17 rural communities of four states in the Mexican Republic. The general objective of the project consisted in performing participatory diagnoses that could lead to the elaboration of integral community development plans, conceived as tools for planning and conducting local development. Among the results reached, the following stand out: high degree of appropriation of the methodology by the participants, identification of common problems and discovery of underlying potentialities, such as: the existence of abundant natural resources and installed productive infrastructure, the prevalence of practices of voluntary and unpaid collective work, and various components of social capital in latent state. Based on this, it is possible to conclude that the methodology used contributes to the configuration of collective rural subjects with a project of their own and that, therefore, the communities that have participated are now better trained, from the organizational point of view, to retain the population in their places of origin and to avoid falling into the tragedy of the commons.
Evaluation of hemato-biochemical, antioxidant enzymes as biochemical biomarkers and genotoxic potential of glyphosate in freshwater fish (Labeo rohita)

ABSTRACT Glyphosate, an herbicide is extensively used in aquaculture and agriculture to control unwanted weeds, the exact mechanism of its toxicity in freshwater fish is not exactly understood. Therefore, the current study examined the mechanisms of toxicity of glyphosate in Labeo rohita. Labeo rohita were randomly divided into five groups and were exposed to glyphosate. Glyphosate-treated fish exhibited clinical and behavioural ailments. Microscopically, different gills of exposed fish indicated necrosis of epithelial cells of the primary and secondary lamellae, congestion, atrophied lamellae, and uplifting of lamellae. Kidneys and livers of intoxicated fish exhibited different degenerative abnormalities. Red blood cells, haemoglobin concentration, lymphocytes, and monocytes count decreased significantly (p < 0.05) while biomarkers of liver and kidneys increased significantly in treated fish at higher doses. Values of various biochemical parameters of liver, kidneys, and gills tissues in treated fish including generation of ROS increased significantly while total proteins, antioxidant enzymes catalase, reduced GSH, and SOD significantly (p < 0.05) decreased in time and a dose-dependent manner. Comet and micronucleus assays showed an increased frequency of DNA damage. In conclusion, results indicated that glyphosate induces toxicity via physiological and chemical disturbances in different tissues of fish in a dose and time response.
Tourists’ negative emotions: antecedents and consequences

ABSTRACT The extant literature emphasizes the influence of tourists’ emotional experiences on their future behaviors. However, researchers seldom focused on negative emotions, which trigger stronger reactions than positive emotions. Therefore, this study investigates the destination attributes determining negative emotions and consequent future behavioral intentions. We examined the structural relationships among six destination attributes (i.e. safety, hospitality, infrastructure, environment, unethical business practices, and unexpected incidents), negative emotions (i.e. agonistic emotions and retreat emotions), revisit intention, and negative word-of-mouth intention. The results show that the destination attributes hospitality, infrastructure, environment, unethical business practices, and unexpected incidents significantly influence agonistic emotions, whereas safety, hospitality, and unethical business practices affect retreat emotions. Furthermore, both agonistic emotions and retreat emotions significantly influence future behavioral intentions. The theoretical and practical implications are discussed based on the results.
The January 2014 Flashflood in the Ambato River (Catamarca, Argentina)- A Case Study of Megaboulders Fluvial Transport

Megaboulders mantle the steep channels of mountainous rivers, and moderate incision rates by increasing channel roughness. Direct measurement of the transport of boulders in natural rivers is difficult, therefore there are few field studies on the subject. The transportation of megaboulders downslope in catastrophic floods in urban environments releases a destructive power. This study analyses the Ambato river flood that occurred in Argentina in January 2014 with an assumed recurrence interval of 1:100 years. The flood was caused by concentrated rainfall in the upper basin, at an elevation of 4000 m. The Ambato river forms a boulder alluvial fan drained by episodic floods. The 2014 flood caused casualties and economic losses in the village of El Rodeo in the province of Catamarca. Several houses and a bridge were destroyed and vehicles were swept away. All bedload sizes- including megaboulders with 2000 mm b-axis- were transported during the flood. The empirical equation for stream power value and the unit bedload transport rate of megaboulders were validated. An assessment of boulder mobility is necessary to mitigate flow hazards in mountainous urban areas. The effects of climate change in semi-arid environments would be greater if they involved increased precipitation or more extreme rainstorms due to events such as El Niṅo.
Multi‐scale biodiversity analyses identify the importance of continental watersheds in shaping lake zooplankton biogeography

We examined variation in crustacean zooplankton composition and diversity across Canada, the most lake‐rich country in the world. In addition to α‐diversity patterns, we explore mechanisms behind β‐diversity spatial variation, using taxonomic and functional metrics. Our goal was to explore geographical gradients and related mechanisms shaping zooplankton distribution across different spatial scales.
Women Entrepreneur Journeys from Poverty to Emancipation

This study examines the processes and mechanisms through which entrepreneurship leads to the empowerment and emancipation of women living in poverty. Drawing on the entrepreneuring as emancipation perspective, we identify specific activities through which emancipatory entrepreneuring manifests itself in the context of women’s entrepreneurship in India. We observe that the activities of a social entrepreneur—the SEWA trade union—complement the activities of individual entrepreneurs and lead to economic, personal, and cultural empowerment. Further, we find evidence of emancipation at the collective level, expressed in changes of sociocultural norms about women’s entrepreneurship. Our study extends the entrepreneuring as emancipation perspective and contributes to research on empowerment and emancipation, women’s entrepreneurship, and entrepreneurship in developing countries.
Green Polymerization of Vinyl Acetate Using Maghnite-Na+, an Exchanged Montmorillonite Clay, as an Ecologic Catalyst

In this work, the green polymerization of vinyl acetate is carried out by a new method which consists in the use of clay called Maghnite-Na+ as an ecological catalyst, non-toxic, inexpensive and recyclable by a simple filtration. X-ray diffraction and scanning electron microscopy showed that Maghnite-Na+ is successfully obtained after cationic treatment (sodium) on crude maghnite. It is an effective alternative to replace toxic catalysts such as benzoyl peroxide and azobisisobutyronitrile which are mostly used during the synthesis of polyvinyl acetate (PVAc) making the polymerization reaction less problematic for the environment. The synthesis reaction is less energetic by the use of recycled polyurethane as a container for the reaction mixture and is considered as a renewable material and a good thermal insulator maintaining the temperature of 273 K for 6 h. The reaction in bulk is also preferred to avoid the use of a solvent and therefore to stay in the context of green chemistry. In these conditions, the structure of obtained polymer is established by 1H NMR and 13C NMR. Infrared spectroscopy (FT-IR) was also used to confirm the structure of PVAc. Thermogravimetric analysis showed that it is thermally stable and starts to degrade at 603 K while differential scanning calorimetry showed that this polymer has a glass transition temperature Tg of 323 K.
A review of servitization theoretical foundations

Purpose: This study seeks to analyse how the servitization topic has been addressed through different theoretical approaches. More specifically, the aim is to answer two key questions: What theoretical approaches have been used to study the phenomenon of servitization? What specific aspects of the servitization process have been analysed through each theoretical approach? Design/methodology/approach: This paper adopts a systematic literature review. The first step involves a descriptive analysis, which is then followed by a thematic one. Findings: The results show that the topic of servitization has been analysed according to the main boundary of the firm theories (Resource-based view, Game theory, and Transaction cost economics) and to organizational boundaries (Contingency theory and Resource dependence theory), among others. From the perspective of these theoretical frameworks, the following topics have received the most scholarly attention: Performance, Capabilities, Supply Chain Management, Business Model, Strategy, and Sustainability. Originality/value: Observations are made on the relevance that diverse theories have on the development of research into servitization. The most suitable theoretical lenses are recommended for future research.
Radiation-induced Fibrosarcoma of the Larynx: a Case Report and Review of Literature

Background: Radiation-induced sarcoma (RIS) is a rare complication following radiotherapy of head and neck carcinoma. It occurs mostly within the limits of the irradiated area and always suggests a poor prognosis. Case summary: Herein, we reported one case of a 61-year-old male with laryngeal squamous cell carcinoma (SCC), who had a history of surgery and radiotherapy. In 2014, this patient was admitted in our hospital for increasing hoarseness five years after surgery and radiotherapy. Finally, the patient was diagnosed as fibrosarcoma and was given total laryngectomy, the patient was died in August 2019 within following up. In addition, the clinical and pathological characteristics of similar cases and their probable tumorgenesis were also reviewed. Conclusion: RIS is increasingly important. They usually occur mostly within the limits of the irradiated area. SCC is the most common malignant tumour in the head and neck region, and radiotherapy is a primary adjuvant therapy method. For patients receiving radiotherapy, physicians should follow up more carefully for early detection the RISs. For sarcomas occurring in head and neck region, especially RIS, complete surgical resection is the primary treatment. The choice of radiotherapy and chemotherapy should be more cautious. The prognosis of primary sarcomas or RISs is still controversial. No matter primary sarcomas or RISs, we believe that complete surgical resection should be considered as a top priority in surgery.
Nontraditional Social Support, Core Belief Disruption, and Posttraumatic Growth during COVID-19

Abstract The 2019 Novel Coronavirus pandemic disrupts typical human support networks through forced isolation. This study examined perceived support from pets and humans, the use of social media for coping, and the impact on core belief disruption and posttraumatic growth during the first few weeks of the pandemic. Results from the longitudinal online studies found that attachment to pets predicted posttraumatic growth (β = 0.13) and core belief disruption (β = 0.17) after a month, while human social support predicted posttraumatic growth (β = 0.22). In addition, social media use predicted core belief disruption (β = 0.35). These results can be used to design interventions aimed at fostering psychological growth and elucidating nontraditional sources of social support.
Effect of NPS and Nitrogen Fertilizers on Growth, Yield and Yield Components of Linseed (Linum usitatissimum L.) at Western Oromia, Ethiopia

The study was conducted at Chaliya district Chobi Tulu Chori kebele and Horo District Gitilo Dole Kebele during 2018 and 2019 main cropping season to identify optimum agronomic and economic threshold of NPS and Nitrogen fertilizers. The experiment consisted of two factors (0, 25, 50, 75 and 100 kg ha-1 NPS rates) and (0, 23, 46 and 69 kg ha-1 Nitrogen rates). A total of 20 treatments were laid out in Randomized Complete Block Design with three replications in 5x4 factorial arrangement. The results indicated that primary branch, capsule per plant, above ground dry biomass and yield were significantly affected by the main effect of NPS and nitrogen fertilizers. The highest grain yield (1400kg and 1382 kg ha-1) were obtained from the application of 25 kg NPS + 69 N kg ha-1 and 25 kg NPS + 46 kg ha-1 N fertilizers respectively. The lowest grain yield (520 kg ha-1) was recorded from the control treatment (0 kg NPS + 0 kg ha-1 N fertilizers). This indicates that 62.86% yield reduction was recorded as compared to the application of 25 kg NPS ha-1 + 69 kg N ha-1 fertilizer. The highest net benefit (35389ETB) and acceptable marginal rate of return (2038%) were obtained from the application of 25 kg NPS ha-1 + 46 kg N ha-1. Therefore application of 25 kg NPS + 46 kg N ha-1 fertilizer rates was recommended for production of linseed in the study areas and similar agroecology.
Quantitative Contributions of the Sources,
Contamination and Ecological Risk of Heavy
Metals in Soils from a Closed Coal Mine
of Huaibei Coalfield, Eastern China

With the increasing number of closed mines, the geological environment problems around closed mines have become increasingly prominent, especially in terms of soil pollution. In this paper, a total of 32 topsoil samples were collected from Qianling closed coal mine and the contents of Cu, Zn, Co, Cr, Mn, As, Cd and Pb were analyzed. The results indicated that the contents Zn and As exceeded the surface soil background values of Anhui Province. Compared with the soil of production mines, the contents of Pb and Zn were higher. The assessment results of pollution and ecological risk of soil based on Nemerow index, Geological accumulation index and potential ecological risk assessment method showed that the closed coal mine was in the mild to moderate pollution and mild hazard ecological risk. The Pearson correlation and positive matrix decomposition model were applied to identify the sources of soil heavy metals, which included atmospheric dustfall (22.47%), natural factors (22.51%), agricultural activities (4.40%), transportation (8.90%) and industrial emissions (42.08%), respectively.