bluuebunny/crossref_metadata_2025 huggingface dataset:
Imaging Tracer Mixing Concentration 2D in a Stream with Hyperspectral Sensing from an Unmanned Aerial System
Authors: Köppl Christian J. , Lemaire Grégory G. , McKnight Ursula S. , Nørregaard Agnete M. , Thiim Thea C. , Bjerg Poul L. , Bauer-Gottwein Peter , Garcia Monica
Published: January 2023

The release of anthropogenic chemicals to streams, stemming from contaminated sites, direct application (rural/urban) or accidental release, represents a significant threat to water resources and thus the health of humans and aquatic ecosystems. Predicting the transport and fate of chemicals is key to quantify contaminant concentrations and develop environmental quality standards (EQS). Tracer tests are a well-established tool for such hydrological investigations in various water-based systems. In stream settings, such experiments have predominantly investigated longitudinal mixing and flow velocities by measuring the tracer concentration in a few discrete locations; few studies have focused on the transversal mixing properties. Recent progress in hyperspectral remote sensing from unmanned aerial systems (UAS) allows advancing the two-dimensional monitoring of tracer tests, by mapping the tracer concentration with a high spatial resolution in narrow streams with difficult accessibility. So far, such methods have only been demonstrated in controlled settings or in ocean waters, but not in optically complex streams. In this study, we evaluated the performance of a miniaturized hyperspectral imaging system and a consumer grade camera on board of an UAS, to map the concentration of the fluorescent tracer Rhodamine WT in a stream impacted by a contaminated site. In order to estimate tracer concentrations from the remotely sensed data, a band ratio of the red and blue band was used for the photo camera, while a vector based method, estimating the spectral angle in regards to a reference spectrum was applied for the hyperspectral data. The photo camera performed well, but it only mapped reliably the concentration in sections of the stream exposed to direct sunlight (R2: 0.83; nRMSE: 10.2 %), failing to map the concentration in all locations, which included locations where the direct sunlight was blocked by riparian trees (R2: 0.17; nRMSE: 28.7 %). In contrast, the advanced spectral information allowed the hyperspectral-based system to map the concentration well in all sections of the stream (R2: 0.76; nRMSE: 15.1 %), regardless of illumination changes. This demonstrated the advantage of optical cameras measuring water-leaving irradiance from hundreds of contiguous narrow spectral bands that also allow detecting finer spectral absorption and emission features. The results presented here would help to improve the knowledge about mixing of contaminants in streams, i.e. to predict the location of fully transversal mixing for contaminant sites discharging to streams via groundwater-surface interactions, as well as general assumptions behind mixing and dilution models.
Cumulative response of Tempranillo vines subjected to the crop forcing technique to pre-forcing and post-veraison water stress on yield and grape and wine quality
Authors: Oliver-Manera Jordi , García-Tejera Omar , Mata Mercè , Girona Joan
Published: January 2023

Elevated temperatures during berry ripening are detrimental to grape quality. The crop forcing technique (summer pruning that ‘forces’ the vine to start a new cycle) increases must acididy and malic acid concentration at harvest by delaying the date of veraison. However, little information is available on the sensitivity to water stress sensitivity of forced vines. A 3-year experiment was conducted to test three irrigation strategies in forced vines: a minimum threshold of mid-day stem water potential (Ψs) of -0.75 MPa before forcing (DI), minimum threshold of Ψs -1.2 MPa only after veraison (RDI) and the combination of both treatments (DI + RDI). Results were compared to a non-forced treatment with a minimum threshold of Ψs of -1.2 MPa after veraison (C-RDI). Must acidity was increased, and pH decreased in the forced treatments. However, yield was reduced by 35% and irrigation requirements increased by 20% when comparing forced and unforced treatments. As a result, water use efficiency was reduced in forced vines. Only after a dry spring, DI (11%) and DI + RDI (30%) saved water compared to C-RDI. Moreover, although punctual Ψs before forcing never fell below − 0.75 MPa, a significant negative correlation (R2 = 0.76) was found between the integral of water stress before the vines were forced and the number of forced bunches per vine. On the other hand, water stress after veraison in forced vines reduced the polyphenol content of the wine. Our fundings suggest that forced vines are extremely sensitive to even mild water stress.
Development of an Enhanced C4.5 Decision Tree Algorithm Using a Memoized Mapreduce Model
Authors: Paul Florence
Published: January 2023

Classification technique in data mining focuses on prediction which is done by classical C4.5 decision tree algorithm, but limited by its computation complexities due to large datasets. However, this results to inefficient implementation of the algorithm with reference to computing time, memory utilization and data complexity. Meanwhile, several researches have been done to curb these limitations. One of such improvements is the parallelizing of the algorithm using the MapReduce model. This involves splitting the large dataset into smaller units and distributing them on multiple computers for parallel processing, but the recursive nature of the algorithm makes the computational cost high due to large number of calculations that are repeated. This research is aimed at further reducing computation time, using memoized MapReduce model that involves storing the result of previous calculations in a cache. Thus, when same calculations re-occur, the cached result is returned, thereby eliminating re-computation.
The effect of weathering on clay mineralogy of Plio-Quaternary sediments and the overlying material on SE slopes of Medvednica Mt., Croatia
Authors: Gverić Zvonka , Tomašić Nenad , Kisiel Marta , Maj-Szeliga Katarzyna , Skiba Michał , Rubinić Vedran
Published: January 2023

Clay mineralogy of Plio-Quaternary sediments of SE slopes of Medvednica Mt. was compared to that of the overlying weathering horizons. Three locations of Plio-Quaternary sediments, representing past weathering products, were sampled along with the overlying material, representing more recent weathering cycles. Particle size distribution, pH and cation exchange capacity (CEC) of the samples were analyzed. Bulk mineralogy was determined using X-ray diffraction (XRD). Clay mineralogy was determined, after carbonate cement, organic matter and free Fe oxides removal, on fractions < 2 and < 0.2 µm using XRD and Fourier-transform infrared spectroscopy (FTIR). Average layer charge of the expandable layers was determined using the O-D method. Major elements content was determined using inductively coupled plasma optical emission spectroscopy (ICP-OES). Bulk mineralogy comprises quartz, feldspars, mica, clay minerals and occasional Al and Fe (oxy)hydroxides. Clay mineralogy differs subtly between samples; dioctahedral expandable clay minerals dominate with illite and kaolinite present. Hydroxyl interlayering of expandables is noted in the surface samples, corresponding to lower CEC values. Average absolute layer charge of the expandable layers is higher in the surface samples and decreases with depth on two of the investigated locations. Overall, clay mineralogy of the Plio-Quaternary sediments reflects a more intensive weathering regime, confirmed by the presence of Al (oxy)hydroxides and lower absolute charge of the expandable layers. The weathered material and soil overlying these sediments shows heterogeneity in genesis, but corresponds to less intense weathering regime, confirmed by the formation of hydroxy-interlayered minerals and higher absolute charge of the expandable layers.
Thermal local quantum Fisher and Wigner-Yanase correlations in a anisotropic two-qubit Heisenberg XYZ model
Authors: Mohamed A.-B. , Rahman A. , Younis S. M. , Zidan N.
Published: January 2023

The thermal quantum correlations’ dynamics of an anisotropic two-qubit Heisenberg XYZ model in the presence of a x-projection external magnetic field are investigated in this paper. We use local quantum-Fisher information (LQFI), and log-negativity, and local quantum-uncertainty (LQU) to analyze the generated quantum correlation dynamics. Using the associated parameters, we demonstrate the successful generation of entanglement and quantum correlations beyond entanglement in the anisotropic spin-chain state. Certain values and ranges of anisotropy, external magnetic field, and spin coupling strength are proposed that can be used to achieve either a non-maximal or maximal quantum correlated state. The characterization of the spin-chain state by various parameters determines the dynamical patterns, degree, and preservation limits of the associated quantum correlations. Finally, the LQFI, LQU, and log-negativity functions’ robustness is highly dependent on their parameters, and they rarely agree on the degree of quantum correlations and dynamical patterns.
Examining the Spatio-temporal changes of Ecosystem Service Value Due to LULC changes: A Case Study on Cox’s Bazar, Bangladesh
Authors: Maruf Jubaier Khalid , Ara Sharmin
Published: January 2023

Ecosystem services can provide information about the functioning of an ecosystem with all of its components. However, natural ecosystems are under immense pressure worldwide for the developing demands. Urbanization is likely to accelerate in the future, particularly in emerging economies, affecting both a local and regional scale. This study aims to assess ecosystem service valuation (ESV) for Cox's Bazar district because this is one of the most significant tourist spots and encountering tremendous LULC changes over the last few decades. Due to tremendous tourist pressure and the huge migration of Rohingyas, this ecologically crucial natural resource base, especially forest, wetland, and sea beaches, continuously suffer and impacts the ecological balance. Different ecosystem components triggered by LULC change & the individual function's value would influence ecosystem service values. Assessing the effects of different land-use scenarios on subsequent changes in ecosystem service has significant implications for sustainable development. This study included six different LULC classes and their effects on ESVs. LANDSAT satellite-derived images for 20 years’ time span from the year 2000 to the year 2021 have been used and calculated for ten years intervals except for the year 2017. In addition, for the years 2030 and 2040, the LULC map and accompanying ESV have been forecasted. Findings show which LULC classes are more prone to change ESV and how ESV changes in this period. The outcome of this study would assist in sustainable land management policy, controlling encroachment on forests, beach areas, and wetlands.
Impacts of introduced species on the fishery potential, ecology and native tilapia populations of Lakes Victoria and Jipe, Kenya
Authors: Omweno Job Ombiro , Omondi Reuben , Ondemo Frederick M.
Published: January 2023

Species introductions have impacted the fishery potential, ecology and native fisheries populations of Lakes Victoria and Jipe. Oreochromis esculentus and Oreochromis niloticus have been widely introduced outside their native range establishing feral populations. However, the impacts of invasive species on management of native species biodiversity has not been documented. The establishment of exotic O. niloticus species populations in Lake Victoria has been accompanied by declining native populations of the O. esculentus and Oreochromis variabilis. These declines have been accelerated by the introduction of Nile perch, Lates niloticus, which preys upon the native O. esculentus, and overfishing of native fisheries which have slow growth rates and low fecundities. Moreover, nutrient pollution and eutrophication have impacted negatively the the food resources for native Singida tilapia O. esculentus. Native Jipe tilapia, Oreochromis jipe is limited in distribution to a small native range in the Pangani system comprising of Lake Jipe, the Pangani River tributaries and the downstream Nyumba ya Mungu Reseivoir. In Lake Jipe, two non-native species O. niloticus and O. esculentus have been introduced. Although the impact of O. niloticus on native O. jipe populations has not been documented, O. jipe has witnessed dwindling catches since the introduction of O. esculentus from the downstream reservoir. The decline can also be attributed to overfishing and the changing ecology of the lake after proliferation of emergent macrophytes such as Typha domingensis. There is need to formulate management policies to monitor and control fishing effort, pollution and protecting the lake and its catchment from degradation caused by human activities.
Alice and the Caterpillar: A More Descriptive Null Model for Assessing Data Mining Results
Authors: Preti Giulia , Morales Gianmarco De Francisci , Riondato Matteo
Published: January 2023

We introduce novel null models for assessing the results obtained from observed binary transactional or sequence datasets, using statistical hypothesis testing. Our null models maintain more properties of the observed dataset than existing ones. Specifically, they preserve the Bipartite Joint Degree Matrix of the bipartite (multi-)graph corresponding to the dataset, which ensures that the number of caterpillars, i.e., paths of length three, is preserved, in addition to other properties considered by other models. We describe Alice, a suite of Markov-Chain Monte-Carlo algorithms for sampling datasets from our null models, based on a carefully defined set of states and efficient operations to move between them. The results of our experimental evaluation show that Alice mixes fast and scales well, and that our null model finds different significant results than ones previously considered in the literature.
Development of a Floating Element Photoelastic Force Balance
Authors: McLaughlin* Bradley , Lawson John , Ganapathisubramani Bharathram
Published: January 2023

We present a floating element force balance design that uses an optical measurement of the force using photoelastic stress analysis. The force sensing element consists of pins embedded in photoelastic polyurethane pads, which generate an internal stress when the floating element is loaded that is observed via a transmission polariscope. A series of known loads and their corresponding fringe patterns allow a calibration matrix to be derived using a polynomial model solved by least squares regression. Finite Element Analysis (FEA) simulation is carried out to validate the proposed method. The balance then measured a lift curve of the NACA0015 wing at low speed. A comparison of the photoelastic balance and a commercial, 6-axis strain-gauge load cell showed typical differences of less than 6%. This optical approach enables accurate measurements with inexpensive and simple components inside the sensor. This work demonstrates that a photoelastic balance is a simple, inexpensive, and sensitive force transducer.
Suicidality and non-fatal self-injury behaviors among people living with epilepsy attending neurology clinic at Zewditu memorial hospital and Amanuel mental specialized hospital, Addis Ababa, Ethiopia: A cross-sectional study
Authors: Anbessie Mohammed N. , Gebrehanna Ewnet , Zewde Yared Z. , Ayele Biniyam A.
Published: January 2023

Background: Suicidality, suicidal ideation, suicide planningand nonfatal self-harm behaviors are more frequent among people living with epilepsy(PLWE) than the general population. The increased risk of suicidality and nonfatal self-harm behaviors and associated factors among people with epilepsy varies across sociodemographic and disease-related factors as well as comorbid psychiatric conditions. This study aimed to determine the magnitude of suicidality and nonfatalself-injury behaviors and identify theirassociated factors among PWE seeking medical care at Amanuel Mental Specialized Hospital and Zewditu Memorial Hospital, Addis Ababa, Ethiopia, in 2021.
Methods: A facility-based cross-sectional study with 345 randomly selected epileptic patients who attended the outpatient neurology treatment service at Amanuel Mental Specialized Hospital and Zewditu Memorial Hospital was conducted from 15 December 2020 to 15 February 2021. The WHO composite international diagnostic interview (CIDI) was used to assess suicidality, depression, and epilepsy-related factors. The association between outcome variables and selected independent variables was tested using a logistic regression model.
Results: The magnitudes of suicidal ideation, suicide planning, and nonfatal self-injury behavior among people living with epilepsy were 21.2%, 18.3%, and 11.9%,respectively. Living alone, poor social support, and comorbid depression were significantly associated with suicidal ideation, suicide planning, and nonfatal self-injury behavior. Individuals who were taking two or more anti-epileptic drugs also showed a statistical association with suicidal ideation (AOR 0.45, 95% CI=.21,.97; p=0.041) and suicide planning (AOR 0.36, 95% CI=.162,.815; p=0.014).
Conclusions: The prevalence of suicidal ideation and nonfatal self-injury behavior among PWE was high among Ethiopian epileptic patients in a hospital setting. Routine screening and proper intervention for comorbid depression as well as avoiding polytherapy might prevent suicidality and nonfatal self-injury behavior. Strong social support also helped prevent suicide and improve quality of life.
CD8 + T cell metabolism and function are suppressed by long-chain fatty acid uptake from the bone marrow microenvironment in Multiple Myeloma
Authors: Gudgeon Bishop , Giles Hannah , Bishop Emma L , Fulton-Ward Taylor , Escribano-Gonzalez Cristina , Munford Haydn , James-Bott Anna , Foster Kane , Karim Farheen , Jayawardana Dedunu , Mahmood Ansar , Cribbs Adam , Tennant Daniel A. , Basu Supratik , Pratt Guy , Dimeloe Sarah
Published: January 2023

Background
Multiple Myeloma (MM) is a plasma cell malignancy that develops in the bone marrow. Function of T lymphocytes is impaired in patients with MM and the bone marrow microenvironment is described as hostile for T cell activity. Precise suppressive mechanisms within the bone marrow microenvironment remain poorly defined but will impact efficacy of bispecific T cell engager and chimeric antigen receptor (CAR) T cell therapies.
Methods
In this study T cell phenotype, function and metabolic activity were analysed within paired bone marrow aspirate and peripheral blood samples from 72 patients across the spectrum of MM, including individuals with premalignant and asymptomatic disease, alongside age-matched controls. This permitted assessment of effects of disease stage and the bone marrow microenvironment. The bone marrow microenvironment was also modelled in vitro using autologous plasma co-culture systems.
Results
Bone marrow CD8+ T cell function decreased with MM development and was consistently lower within bone marrow samples than matched peripheral blood. These changes were accompanied by decreased mitochondrial mass, which correlated tightly with T cell function. Conversely, long-chain fatty acid uptake and peroxidation was markedly elevated in bone marrow CD8+ T cells. In vitro modelling confirmed uptake of bone marrow lipids suppresses CD8+ T function, which was impaired in autologous bone marrow plasma, but rescued by both lipid removal and inhibition of lipid peroxidation. Analysis of single-cell RNA-sequencing data identified expression of fatty acid transport protein 1 (FATP1) in bone marrow CD8+ T cells in MM, and FATP1 blockade also rescued CD8+ T cell function. Finally, analysis of samples from treated patient cohorts identified CD8+ T cell metabolic dysfunction resolves in treatment-responsive but not relapsed MM patients and is associated with substantial functional restoration.
Conclusions
CD8+ T cells are functionally impaired within the MM bone marrow microenvironment. This is accompanied by decreased mitochondrial mass but elevated uptake of long-chain fatty acids. Blockade of FATP1 restores CD8+ T cell function in presence of BM lipids and may therefore represent a novel therapeutic target to augment their activity in the bone marrow in MM and improve efficacy of T cell-directed therapies.
Multiple Molecular and Biochemical Alterations in Zebrafish Exposed to Terbuthylazine and Malathion
Authors: Khatib Ihab , Horyn Oksana , Bodnar Oksana , Rychter Piotr , Lushchak Oleh , Falfushynska Halina
Published: January 2023

In the context of the global increase in pesticide applications, aquatic animals are constantly subjected to their action in natural reservoirs. Our research sought to determine the molecular and biochemical effects of an environmental exposure to commonly used chloro-s-triazine herbicide terbuthylazine and organophosphate insecticide malathion on zebrafish. To this aim, mature zebrafish were exposed to 2 and 30 µg L−1 terbuthylazine and 5 and 50 µg L−1 malathion alone and in combination for 14 days. Following exposure, induction of reactive oxygen and nitrogen species, lipid peroxidation, and protein carbonylation in the liver of treated zebrafish have been registered. Aside from the accumulation of oxidative lesions, a decrease in antioxidants and succinate dehydrogenase activity, an increase in oxidized glutathione, and enhanced apoptosis via Caspase-3 and BAX overexpression (in the case of terbuthylazine) were observed. Furthermore, terbuthylazine and malathion induced mitochondrial swelling and lactate dehydrogenase leakage in a concentrationdependent manner. Significant upregulation of ubiquitin expression and increasing cathepsin D activity were characteristics that appeared only upon terbuthylazine exposure, whereas induction of IgM was identified as the specific characteristic of malathion toxicity. Pesticides in the studied concentration didn’t provoke significant alterations in the hypothalamic-pituitary-thyroid axis in zebrafish. Co-exposure increased adverse effects of individual pesticides to zebrafish. This study should improve understanding of the mechanisms of pesticide toxicity that leads to fish impairment and biodiversity decline, as well as emphasize the importance of paying attention to pesticide traces in the environment and fish, which can have devastating effects on biota even at low concentrations.
Cheng Ho Mosque and Islamic Education: Chinese Muslim Ethnic Assimilation Strategy in Contemporary Religious Education in Indonesia
Authors: Raya Moch. Khafidz Fuad
Published: January 2023

This article aims to explore how ethnic Chinese Muslims assimilated into Indonesian society from the efforts to build the Cheng Ho Mosque and the establishment of Islamic educational institutions. In the contemporary era, these ethnic minorities can blend in with indigenous Indonesians by engaging in wider Islamic practice activities in the public sphere. The Cheng Ho Mosque and Islamic education are negotiating tools for ethnic Chinese Muslims in establishing a ‘Chinese’ identity in the archipelago’s culture. Focused on three areas: Surabaya City, Banyuwangi Regency, and Pasuruan Regency; this study uses a qualitative as approach and ethnographic as the method. Through Spradley’s analysis, this study finds that the Cheng Ho Mosque is an assimilative strategy of Chinese Muslims in confirming their identity as ‘Indonesian Islam’. Not only as a place of worship for Chinese Muslims, but also as a ‘Islamic Chinese Centre’ and establishing Islamic educational institutions ranging from kindergartens to Islamic boarding schools (pesantren) in a ‘Chinese’ style. This study contributes that the Cheng Ho Mosque and Islamic education have inspired moderate religious practices where minority Muslim communities can exist in Indonesia by assimilation of religious culture and Islamic education.
Nonautonomous Lienard systems equivalent to first-order differential equations
Authors: Adjaï K. K. D. , Akande J. , MONSIA M. D.
Published: January 2023

Generally, second-order differential equations are mapped onto first-order equations to determine their solutions. In the present paper, first-order differential equations with well-known analytic properties are transformed into new or known nonautonomous Lienard differential equations to obtain their exact solutions using the theory of second-order differential equations based on the existence of a first integral recently introduced in the literature by the present authors. First-order differential equations that appear in the Kamke book are used as illustrative examples. As a result, these examples show that parametrically excited Lienard equations may not exhibit parametric resonance.
Liquid extraction of thiophene from n-paraffins (C 8 , C 10 or C 12 ) using two ionic solvents [mebupy][BF 4 ] or [emim][CH 3 SO 4 ]
Authors: Al-Jimaz Adel S. , Alkhaldi Khaled H. A. E. , Aljasmi Abdullah , AlTuwaim Mohammad S.
Published: January 2023

Desulfurization of gasoline and diesel models is investigated through liquid-liquid extraction of thiophene (C4H4S) from n-paraffin compounds. Ionic solvents of 4-methyl-N-butylpyridinium tetrafluoroborate [mebupy][BF4] or 1-ethyl-3-methylimidazolium methylsulfate [emim][CH3SO4] as selective solvents, have been evaluated at 313.15 K and atmospheric pressure of 101.3 kPa. Experimental liquid–liquid equilibrium (LLE) data for the six ternary systems of n-octane, n-decane or n-dodecane + thiophene + [mebupy][BF4] or [emim][CH3SO4], were used to calculate the values of the thiophene distribution ratio, selectivity and efficiency of ionic solvents. The experimental data were correlated using the UNIQUAC equations, and the binary interaction parameters have been reported. The phase diagrams for the ternary mixtures including both the experimental and calculated tie-lines have been presented.
Dissolved nitrogen concentration in river water and its impacts on downstream brackish-estuary lakes in the Bekanbeushi River and Lake Akkeshi catchment, northern Japan
Authors: Nakazumi Naoki , Inoue Takahiro , Nakaoka Masahiro , Fukuzawa Karibu , Shibata Hideaki
Published: January 2023

To clarify the effects of land use in a catchment on river water quality, its nutrient environment and primary production in downstream brackish-estuary lakes, we observed nutrient concentrations (nitrogen and phosphorus) in river and lake water and analyzed land use in the catchment. The concentration of nitrate-nitrogen tended to increase in river water associated with a high percentage of agricultural land (pastureland) in its catchment. It is suggested that nitrogen management in agricultural lands in the catchment area and the arrangement of forests and riparian wetlands and their nitrogen removal functions may have an important effect on the productivity of aquatic organisms and food webs in downstream lakes, especially near river estuaries.
Influence of ionic liquids in the reverse water-gas shift reaction: a thermodynamic study
Authors: Abreu Valdeir A. , Alcantara Murilo L. , Ferreira Newton L. , Bresciani Antônio E. , Bassani Gabriel S. , Nascimento Cláudio A. O. , Alves Rita M. B.
Published: January 2023

Carbon dioxide (CO2) conversion processes can be a promising alternative to replace conventional processes toward a more sustainable industry. The addition of ionic liquids (IL) was reported to increase the performance of related reactions; however, their thermodynamic influence in the reactive chemical equilibrium has been poorly investigated. This study evaluated the effect of the ionic liquids (ILs) [BMIm]BF4], [BMIm][PF6], or [BMIm][NTf2] on the CO2 hydrogenation to carbon monoxide (CO) chemical equilibrium. Predictive and nonpredictive approaches based on the Predictive Soave-Redlich-Kwong equation of state were applied to represent pure ILs densities and vapor pressure. The nonpredictive approach presented the most suitable representation and was applied to represent binary vapor-liquid and liquid-liquid phase equilibria of ILs + CO2, hydrogen (H2), CO, or water (H2O). The influence of temperature pressure, and IL content on CO2 hydrogenation to CO reaction were evaluated. Higher ILs’ molar ratio increased the equilibrium conversion. IL-containing systems are significantly influenced by pressure, and high pressures enhance CO2 conversion. High temperatures increased the reaction’s conversion of systems containing the hydrophobic ILs [BMIm][PF6] or [BMIm][NTf2], while low temperatures increased the CO production of systems containing the hydrophilic IL [BMIm][BF4]. This effect was attributed to the high influence of temperature on the water sorption in the IL. The hydrophilic IL, [BMIm][BF4], promoted the highest increase in CO2 conversion. At 348 K and 2.0 MPa, the CO2 conversion was increased from 1.1–54.1%; roughly an increase of ~ 50 times the original conversion without IL addition.
Knowledge and attitude of school students Regarding the COVID-19 pandemic
Authors: Waghmare Puja , Humane Sushil , Shaikh Tasleem
Published: January 2023

Introduction

In India, a variety of approaches was adopted to control the spread of Covid-19 among people including social distancing, compulsion on wearing a mask, vaccination, etc. however, there is still lacking the awareness among people regarding Covid-19. knowledge and attitude of the youth can make a huge difference in these efforts and so this study is aimed to find the knowledge and attitude of school students regarding Covid-19.

Method

A descriptive study was conducted in September 2021 on a total of 286 school students. Different schools in Nagpur were used to collect data from students aged between 15–18 years. Prior consent and accent were taken from the parent and students respectively before data collection. A convenient sampling technique was used to collect data by using the demographic form, structured knowledge questionnaire(SKQ), and Attitude Likert scale(ALS). Statistical analysis was performed using in Microsoft Excel sheet and a chi-square test was used to calculate the association between the demographic variable and knowledge and attitude score.

Result

In the study group, 37.06% were in 16–17 years of age, 57.69% were male, 32.87% were in 11th standard, about 55.94% of student’s parents were doing the private job, 39.51% of student’s family income was between 10001–20000, 46.85% students were living in a nuclear family, 48.95% students were Buddhist, 89.16 students had previous knowledge of COVID-19 and about 71.37% of student got this knowledge from the television. In the study group, 5.94% of students had Good knowledge and 35.66% of students had a favorable attitude,

Conclusion

The majority of the school students have poor knowledge and attitude toward Covid-19. Educational intervention is very necessary to improve the knowledge of students.
Cut-off values of geriatric nutritional risk index for cardiovascular events in acute myocardial infarction patients
Authors: Ito Satoshi , Inoue Yasunori , Nagoshi Tomohisa , Aizawa Takatoku , Kashiwagi Yusuke , Morimoto Satoshi , Ogawa Kazuo , Minai Kosuke , Ogawa Takayuki , Yoshimura Michihiro
Published: January 2023

Low Geriatric Nutritional Risk Index (GNRI) in patients with heart failure is associated with poor prognosis. However, the usefulness of GNRI for patients with acute myocardial infarction (AMI) remains controversial. We evaluated the optimal cut-off values of GNRI for cardiovascular events in AMI patients by time-dependent receiver operating characteristic (ROC) analysis to examine its usefulness. We retrospectively investigated the optimal cut-off values for two endpoints of all-cause death and major adverse cardiac events (MACE: all-cause death, non-fatal myocardial infarction, hospitalization for heart failure, stroke) over 48 months in 360 patients with AMI who required emergency admission to our hospital between January 2012 and February 2020. The cumulative incidence of MACE over 48 months was 11.6%. The cut-off value of GNRI for all-cause death was 82.7 (AUC 0.834) at 3 months, 89.3 (AUC 0.861) at 12 months, and 90.3 (AUC 0.854) at 48 months. The cut-off value of GNRI for MACE was 83.0 (AUC 0.841) at 3 months, 95.7 (AUC 0.863) at 12 months, and 95.3 (AUC 0.821) at 48 months. Time-dependent ROC analysis showed that the optimal cut-off value of GNRI varied over time. The optimal cut-off value of GNRI is a useful predictor for prognosis in patients with AMI.
Liquid-phase Alkylation of Toluene by Benzyl Alcohol over Micro-mesoporous Hierarchical Mordenite Zeolite
Authors: Bandyopadhyay Rajib , Koshti Hardik
Published: January 2023

In this work, post-synthetic effective acid (HNO3) and base (NaOH) etching technique are used to create hierarchical mordenite having different pore structure. The powder X-ray diffraction (P-XRD) technique was used to confirm the crystalline structure of the base modified and acid modified mordenite. Field emission-Scanning electron microscope (FE-SEM) was employed to confirm the structural morphology of the materials. The modified mordenite were further characterized by Inductive coupled plasma-optical emission spectrometry (ICP-OES), N2 adsorption-desorption isotherms, thermogravimetric analysis (TGA), acid base titration, to confirm the structural integrity, presence of active acidic sites, and other vital parameters. The structure was well conserved after the change, as evidenced by the characterization. The toluene alkylation with benzyl alcohol using hierarchical Mordenite and H-Mordenite produced mono-benzylated toluene. Comparison between acid treated, base treated and H-Mordenite was done. All samples were catalytically active as proved by the catalytic result in the alkylation reaction. The results show that the base alteration dramatically enhances the mesoporous surface area of H-Mordenite. Furthermore, the acid treated Mordenite had the highest benzyl alcohol conversion (75%), but the base modified Mordenite had benzyl alcohol conversion of 73% with the highest mono-benzylated toluene selectivity (61%). The process was further optimised by varying the reaction temperature, duration, and catalyst quantity. Gas Chromatography (GC) was used to evaluate the reaction products and gas chromatography-mass spectrometry (GC-MS) was used to confirm them. Introduction of mesoporosity in the microporous Mordenite was found to have significant effect on their catalytic activity.
CAA-PPI: A Computational Feature Design to Predict Protein-Protein Interaction using different Encoding Strategies
Authors: Mewara Bhawna , Sahni Gunjan , Lalwani Soniya , Kumar Rajesh
Published: January 2023

Protein-protein interactions (PPIs) carry out an extensive variety of biological procedures, containing cell-to-cell interactions, metabolic and developmental control. PPI is becoming one of the most important aims of system biology. PPI act as a fundamental part in predicting the protein function of the target protein and drug ability of molecules. Abundant work has been done to nurture methods to predict PPIs computationally as this supplements laboratory trials and offers cost-effective way of predicting the most likely set of interactions at the entire proteome scale. This article presents an innovative feature representation method (CAA-PPI) to extract features from protein sequence using two different encoding strategies and then an ensemble learning method, the Random Forest method is used as a classifier for PPIs prediction. CAA-PPI considers the role of trigram and bond of given amino acid with its nearby ones. The proposed PPI model achieves more than 98% prediction accuracies with one encoding scheme and more than 95% prediction accuracies with another encoding scheme respectively for the two diverse PPI datasets i.e. H. Pylori and Yeast. Further investigations are made to compare the CAA-PPI approach with existing sequence-based methods and reveals the proficiency of the proposed method with both encoding strategies. To further assess the practical prediction competence, a blind test has implemented on five other species’ datasets independent of the training set, and obtained result ascertains the productivity of CAA-PPI with both encoding schemes.
Diagnostic Strategy and Treatment of Atypical Facial Lipoma: Case Report
Authors: Fernandes Breno dos Reis , Bizzotto Jéssica Fernanda , Weber Júnior Volmir Ferreira , Abramsson Adryleine Patrícia , Bortoloso Alinne , Sant’Ana Amanda Paino , Marchiori Darah Lígia , Mulinari-Santos Gabriel
Published: January 2023

Lipoma is a benign tumor with slow growth. However, it is one of the most common tumors of soft tissues, its origin remains unclear. We present a case of a lipoma in the frontal region of the face, causing aesthetic and psychological discomfort to the patient. The strategy of treatment of this lesion is essential for a favorable prognosis.
Empirical techniques for assessing rock mass condition
Authors:   National University of Science and Technology MISIS, Nikolai Abramkin
Published: January 2023

The relevance of the work is due to the existence of a large number of empirical methods for predicting the condition of a rock mass and the need to apply them at the design and operational stage of mining enterprises to minimize costs during construction and future maintenance. Research objective is to analyze and compare existing empirical methods for determining the strength and deformation properties of rock mass. Methods of research include the analysis, systematization and synthesis of existing empirical methods of rock mass condition assessment and their applicability to real-world sites. Recommendations for further application of empirical rock mass assessment methods in real-world conditions are determined by generalization of theory and practice, research results and analytical calculations based on the assessment of fracture formation in rock masses. Results. The main empirical methods such as Deere's method (RQD) of structural failure evaluation, the method relating strain rate to RMR rating system and the method relating strain rate to geomechanical classification of rock mass Q were found and chosen for comparison. Several types of rocks such as limestone, diorite, granite, basalt, tuff, andesite in different geotechnical conditions are chosen for comparison of the methods. Comparison of different empirical methods of rock mass condition assessment is carried out. Evaluations of each method are given. Ways of application of empirical research methods are recommended. It is concluded that it is necessary to apply several methods in order to get a more accurate picture of the rock mass condition. Recommendations for the initial assessment of the state of rocks are given. Conclusions. There are a large number of empirical methods of rock mass condition estimation. The results obtained by some methods for some types of rocks under different mining and geological conditions are very different from each other, this is due to the fact that the considered methods were created on the basis of different sources. It is necessary to take into account the stresses acting in the rock mass, which also influence the results obtained.
Studying the effect of overburden removal flow diagram parameters on open pit possible productive capacity when developing an inclined formation
Authors:   Siberian Federal University, Valerii Sidorov
Published: January 2023

Introduction. The article discusses the technical and technological potential of coal mining economic efficiency enhancement for deposits formed by a formation of inclined beds using a combination of transport and transportless technologies. The considered reserve consists in the possibility of reducing the volume of overburden relocated by draglines and increasing the volume of prepared reserves by optimizing the excavation flow diagram parameters. The research was carried out for the Chernogorsky bituminous coal deposit of the Minusinks coal basin. Research objective is to reveal the regularities between changes in the deposit’s productive capacity for coal and the volume of overburden relocated on the one hand, and the parameters of flow diagrams that enhance the economic efficiency of a coal mining enterprise using the combination of transport and transportless technologies on the other hand. Methods of research. Process flow diagrams were analyzed, and the parameters of the entry width, the height of the overburden shotpile mined by the dragline and the height of the dragline elevation over the roof of bed were varied. The methods of graphical analysis were used based on the proposition about the equality of the width of the mining, stripping and dump panels and the areas of the dump and stripping entry ways. A regression analysis of the data obtained was carried out. Results. The regularities between the changes in the deposit’s productive capacity for coal and the volume of overburden relocated on the one hand, and the parameters of flow diagrams on the other hand, have been revealed. The need to control the open-pit’s productive capacity has been justified. The possibilities have been considered for production cost cut by reducing the scope of excavation. Summary. Flow diagram parameters optimization based on the identified regularities makes it possible to control the open-pit’s productive capacity and the volume of overburden relocated over a broad area. The height of the overburden shotpile mined by the dragline at Velikan 1 and Gigant 1 coal beds has the largest impact.
Professional English Language Skills for Employability in Portugal
Authors: Cunha Ana , Mateus Anabela , Bruscato Amanda , Renda Inês
Published: January 2023

This paper reports on the research carried out by a Portuguese university in the scope of PESE – Professional English Language Skills for Employability Across EU project, which highlights the importance of appropriate English skills for the workplace. The present study focuses on the Portuguese labor market and identifies the English skills employers currently require from their employees based on the review of a job search website and the application of questionnaires to 22 Portuguese companies, as well as 6 experienced English trainers. The data collection is part of the project’s Handbook on the current Professional English requirements throughout partner countries, from which a framework for a curriculum can be established. The curriculum will then form the basis of an e-course on professional English skills targeted toward unemployed citizens in Europe.
Improving Eighth Graders’ Vocabulary Mastery through Students’ Learning Style-VARK-Based Flashcards
Authors: Nurhaliza  , Sari Valentina Dyah Arum
Published: January 2023

Mastering vocabulary will help students in expressing their ideas or understanding others in an EFL context. However, it turns out that students have difficulty learning English due to a lack of vocabulary mastery. Therefore, the selection and the use of appropriate media were needed to help students achieve the learning objectives. In this study, the VARK questionnaire was distributed to students to see their learning styles. The results were that most of them are Read/Write type of learners. Considering that fact, students learning style VARK-based flashcards were implemented as a medium in this Classroom Action Research. This study aims to find out how flashcards can improve vocabulary mastery in class VIII C students of one state Junior High School in Teluk Keramat, Kalimantan.  This study applied Classroom Action Research with 2 cycles with 33 student participants. The data analysis technique used mixed-method research; qualitative and quantitative. The instrument used questionnaires, interviews, observation checklists, and tests. The results indicated that students gained improvement after learning by using flashcards media. It was found that the average score of students in the pre-test was 34.9, post-test cycle I was 54.2, and post-test cycle II was 72.5. This proved that students' vocabulary mastery by using students' learning style VARK-based flashcards was improved. Further, it could be concluded that students learning style VARK-based flashcards gave a positive impact on the use of learning media in a Junior High School in Teluk Keramat to improve their vocabulary mastery.
A külföldről hazatérő magyarok demográfiai-társadalmi jellegzetességei és mobilitásukra ható tényezők vizsgálata
Authors: Obádovics Csilla , Kulcsár László , Gödri Irén
Published: January 2023

A tanulmány célja, hogy a Központi Statisztikai Hivatal (KSH) 2016. évi mikrocenzusra és a nemzetközi migrációs kiegészítő adatfelvételre alapozva megvizsgálja az 1990 óta kivándorolt és az egy évet meghaladó külföldi tartózkodás után 1991 és 2016 között hazatérő Magyarországon született magyar állampolgárok (1) társadalmi–demográfiai jellemzőit, a (2) hazatérés utáni belföldi mobilitásának alapvető jellemzőit. A tanulmány célul tűzte ki azt is, hogy (3) a szakirodalomra támaszkodva a hazatérésnek a válaszokban megjelölt okai alapján kísérletet tegyen egy tipológia megalkotására. A visszatérőket ennek alapján négy típusba soroltuk: kudarcos, tudás hasznosító, érzelmi kötődő és tervezett visszatérő. Felhívtuk a figyelmet arra, hogy e típusok között jelentős átfedések vannak, amelyeket a következő vizsgálati szakaszban pontosítani fogunk. A hazatérőket a hazatérés utáni területi mozgásaik jellemzője szerint költözött–nem költözött csoportokba soroltuk. A hazatérés után a településhatárt átlépő költözők aránya a visszatérő 20 éves és idősebb népesség 18,4%–a volt. A költözések 90,2%–a a hazatérés után egy éven belül, de a fele már az első három hónapban megvalósult. Kereszttábla elemzéssel és logisztikus regresszió analízissel vizsgáltuk, milyen demográfiai, társadalmi tényezők valószínűsítik a belföldi vándorlást a hazatérők körében. Vizsgálatunk arra is kitért, hogy mely tényezők hatnak a költözés időzítésére. E tényezők között a demográfiai jellemzőkön túl a visszatérés okai alapján képzett tipológia és a külföldön töltött idő hossza is szerepel. A logisztikus regresszió eredményei azt mutatják, hogy a fiatalabb korcsoportokhoz tartozóknak és a felsőfokú iskolai végzettséggel rendelkezőknek van a legnagyobb esélye arra, hogy a hazatérés után a költözők csoportjába kerüljenek.
Tárgyszavak: nemzetközi migráció, visszatérő migráció, visszatérő migráció típusai, logisztikus regresszió
Trends and patterns of cholera epidemic in West Africa: a statistical modeling study
Authors: Conde Amadou , Dureh Nurin , Ueranantasun Attachai
Published: January 2023

Cholera is a serious disease that affects a huge number of people, especially in underdeveloped nations, and is particularly prevalent in Africa and southern Asia. This study aimed to determine cholera incidence trends and patterns in West Africa, as well as to develop a statistical model for cholera incidence. The outcomes of this study were occurrence, which was given a value of 1 if a case occurred and a value of 0 otherwise, and incidence rate. Logistic regression was used to model occurrence, while log-linear regression was used to model incidence after excluding the records with zero cases. The trend of cholera incidence rate was approximately constant for the Democratic Republic of Congo, whereas rates vary substantially throughout the study period in other countries. A confidence intervals plot shows that cholera incidence was higher in September and October, lower in 2015–2017, higher in Guinea, Niger, and Congo (west), and lower in Cote de-Ivoire, Cameroon, the Democratic Congo and Central African republics, Togo and Guinea Bissau. These two models can fit the data quite well. As a result, the method used in this study may be considered as an alternative to the traditional Poisson regression and negative binomial regression models.