Miracle-dz/UniFAR-FTUs huggingface dataset:
Kinetic studies of adsorption of palmitate and laurate soaps onto some metal ores in aqueous media.

The kinetics of adsorption of sodium-palmitate and sodium-laurate onto galena, hematite and cassiterite in aqueous media was investigated at various concentrations, times and temperatures. Experimental results were analysed using the pseudo-first and pseudo-second order kinetic models. The pseudo-first order model with higher correlation coefficient values described the adsorption kinetics better than the pseudo-second order model. The rate constant from the pseudo-first order model [0.109 min -1 for galena, 0.102 min -1 for hematite, 0.085 min -1 for cassiterite (in the sodiumpalmitate adsorption) and 0.127 min -1 for galena, 0.109 min -1 for hematite, 0.095 min -1 for cassiterite (in the sodium-laurate adsorption) at 29 o C] show these rates in the order: galena > hematite > cassiterite for the adsorbents; and sodium-laurate > sodium-palmitate for the adsorbates. Some kinetic parameters were computed and the values obtained indicate that the adsorption processes occurred at reasonable rate, low temperature and low energy suggesting physical adsorption as the dominant process.
RBF-DQ Solution of Natural Convection under the Effect of a Magnetic Field in a Tilted Cavity

In this study, radial basis function based differential quadrature (RBF-DQ) method is applied to the natural convection in an inclined unit square cavity under the effect of an applied magnetic field in different angles. The stream function-vorticity form of the dimensionless governing equations are concentrated on. The change in different Hartmann numbers, Rayleigh numbers and inclination angles of the cavity is investigated both in terms of streamlines, isotherms, vorticity contours and the average Nusselt number through the heated wall. The increase in Hartmann number causes heat transfer to be conductive due to the Lorentz force, and therefore the inclination angle of the cavity loses its effect. A remarkable effect of the inclination angle on heat transfer for 4 6 10 10 Ra   is presented. The proposed method is a global method and provides to use small number of grid points as a result of DQ method.
ICAM1 gene polymorphism in late-onset Alzheimer’s disease

Intercellular Adhesion Molecule-1 (ICAM-1) is a cell surface glycoprotein with possible involvement in the pathogenesis of Alzheimer’s disease (AD). Therefore, sequence variations in the ICAM1 gene affecting ICAM-1 structure or expression level may play a role in the genetic susceptibility to AD. The aim of the current study was to examine the potential associations of two functional ICAM1 gene polymorphisms rs1799969 and rs5498 with the risk of AD development. 123 unrelated AD subjects (mean age 79.5 ± 6.0 years) and 265 controls (mean age 73.2 ± 9.4 years) of Slovak origin were involved in the study. Genotyping of ICAM1 rs1799969 and rs5498 SNPs was performed by PCR-RFLP. The APOEε4 allele carriage status as the major known risk factor for AD development was determined by direct sequencing. Possible association of ICAM1 gene variants with AD risk was evaluated by logistic regression analysis. Our study revealed no statistically significant association of ICAM1 rs1799969 and rs5498 polymorphisms with risk of AD development. Stratification of study groups according to their APOEε4 carriage status showed only moderate changes. Analysis of influence of ICAM1 genotypes on clinical findings such as age at disease onset and degree of cognitive impairment in AD patients showed modest, but significant association of the rs5498 AA genotype with higher severity of cognitive decline. In conclusion, our findings do not support the role of ICAM1 polymorphism as an independent genetic factor for Alzheimer’s disease susceptibility.
Comparative study of soil fertility status of direct seeded and transplanted rice under Kohima district of Nagaland

In the present investigation, soil fertility status of directed seeded and transplanted rice under Kohima district of Nagaland were studied. The soils of the study area were strong to moderate acidic in reaction with pH ranged from 4.94 to 5.58 and EC ranged from 0.04 to 0.15 dSm, respectively. The soils were high in organic carbon and potassium. Organic carbon ranged from 0.80 to 2.02 (%) and potassium ranged from 279.6 to 520.4 kg ha, respectively. The available nitrogen, phosphorus and sulphur ranged from low to medium, respectively.
Evaluation of humus quality of forest soils with two extraction methods

Extraction method as one of the most important steps of the study of humic substances quality can affect the results. In this study three types of forests with different ages and vegetation were chosen to study the different extraction methods on the quality of extracted humic substances. A virgin forest, Bald Cypress forest and Eastern Cottonwood forest in the north of Iran were chosen. Some physical and chemical properties of soil samples were measured. The soil samples were extracted with NaHCO3 and Hot Water Percolation method. The quality of organic carbon in both kinds of extracts was studied using spectroscopy method. The E2:E3, E4:E6 ratios and URI were estimated. There were some differences in physical and chemical properties between different samples. Bald Cypress forest had the maximum amount of clay fraction in its texture. Also this samples contained the highest value of soil organic carbon. Virgin forest showed the maximum amount of total soil nitrogen which is probably related to the species of its vegetation. The minimum C:N ratio as a humification factor was observed in virgin forest sample. The organic compounds which extracted with NaHCO3 and Hot Water were different. The results indicated the presence of humic acid (HA) in all of samples which were extracted with NaHCO3 solution, however, Hot Water extracts contain compounds with fulvic acid (FA) properties. According to our results Hot Water Percolation is an appropriate method for extracting organic compound with more activity, simple structure, less carbon and low molecule weight (MW). Keyword: Soil, Hot Water, Organic carbon, UV VIS, Fulvic acid, Humic acid.
The Impact of Government Spending on the Duration and the Intensity of Economic Crises: Latin America 1900-2000

We study the role of fiscal expenditure during episodes of economic crises using one century data from 20 Latin American countries. We use output drops as a way of indicating the irruption of economic crises and we are able to document episodes of large output drops and large duration of economic crises, which are the characteristics that vary considerably among countries. We study the duration of crises by means of count data and hazard models while we study the intensity of the crisis by means of growth regressions. Our main finding suggest that fiscal expenditure has low power to shorten economic crises but it might act as an effective instrument to smooth output-drops during crises.
Improving The Student Learning Outcomes Through Public Relation Administration Module Development Based on POE Protocol

The purpose of this research is to produce module of Public Relation and Protocol Administration based on POE for Eleventh Grade Office Administration 2 which has been tested its validity and to know the improvement of student learning outcomes after using this module. This type of research is research and development with using Borg & Gall model. Research indicates that the module of Public Relations and Protocol Administration using POE model have been validated and the result is feasible to be used and the student’s learning outcomes in the experimental class are higher than the control class.
Perceptions and Attitudes of Nurses Working At Emergency Unit About the Causes and Treatment of Addiction

Objectives: This study was carried out to determine the emergency nurses’ perceptions towards the reasons and treatment of substance addiction their attitudes towards the individuals having problem of substance addiction. Methods: This descriptive study was carried out in three hospitals which have psychiatry clinic in a city in Aegean Region. 86 nurses, who was working in the emergency unit (n=125) and accepted participating, constituted the sample of the study. 4 Forms were used as data collection tools. Descriptive Information Form, Reasons of Substance Abuse Scale-RSAS, Substance Abuse Treatment Scale-SATS, and Attitude Scale-AS. In data evaluation, descriptive statistics, t-test, variance analysis, and correlation analysis were used. Results: 53.5% of the nurses made care to a substance user patient in any period of their professional life and 80.2% of them explained that they haven’t had an education about that subject before. The Emergency unit nurses’ average scores of Attitude Scale (AS) was 49.43±19.59. showed that nurses has negative attitutes towards social distance to people who has substance use problem. The nurses’ socio-demographic and professional characteristics and having the knowledge and experience of caring to a substance user patient before, were effective negatively on the reasons for substance use and nurses perceptions about people who wants to give up on substance and nurses attitutes about substance users. Nurses believe that a person uses substance primarily because of “coping with the problems” and “social environment” and a substance user individual must have a change for him/her in order to be able to recover from addiction. They think that the individual must “avoid the substance use and get socioprofessional help” and must “change the personality characteristics” to achieve. Conclusion: Emergency nurses have the tendency of negative attitude towards the patients having the problem of substance abuse.
Dispersal of aquatic organisms by waterbirds: a review of past research and priorities for future studies

SUMMARY 1. Inland wetlands constitute ecological islands of aquatic habitat often isolated by huge areas of non-suitable terrestrial habitats. Although most aquatic organisms lack the capacity to disperse by themselves to neighbouring catchments, many species present widespread distributions consistent with frequent dispersal by migratory waterbirds. 2. A literature review indicates that bird-mediated passive transport of propagules of aquatic invertebrates and plants is a frequent process in the field, at least at a local scale. Both endozoochory (internal transport) and ectozoochory (external transport) are important processes. 3. The characteristics of the dispersed and the disperser species that facilitate such transport remain largely uninvestigated, but a small propagule size tends to favour dispersal by both internal and external transport. 4. We review the information currently available on the processes of waterbird-mediated dispersal, establishing the limits of current knowledge and highlighting problems with research methods used in previous studies. We also identify studies required in the future to further our understanding of the role of such dispersal in aquatic ecology.
Endoparasitaemia of Chrysichthys Nigrodigitatus in a Tidal Freshwater Body in the Niger Delta, Nigeria

One hundred Chrysichthys nigrodigitatus were randomly selected from the New Calabar River to determine the effect of size and sex on the endoparasitaemia in the blood, heart, liver, kidney and Gastro-intestinal tract. The formol-ether concentration method was used to examine the samples. Data revealed an overall parasitaemia of 18 (18.0%). The size classes 301-400mm, 201-300mm and >169-200mm had 5(55.6%), 12(15.2%) and 1(11.1%) respectively while the size class 0.05), however the females had 11(20.4%) and the males had 7(15.2%) of their respective populations. Site specific endoparasitaemia showed that the gastro-intestinal tract harboured the highest (38.9%) parasitic load, while the kidney had the lowest (5.6%). The heart had (33.3%) and the blood and liver had (11.1%) parasitic load each. Fourteen (14) parasite species from 5 phyla were recovered from the fish samples namely: Protozoa - Coccidia sp. and Thelohanellus piriformis; Platyhelminth - Ascocotyle ceolostoma, Sanguinicola inermis, Sanguinicola armata, Atalostropion sp. , Silurotaenia siluri, Tetrochetus coryphaenae, Biacetabulum appendiculatum and Tetraonchus monenteron; Nematoda - Strongyloides sp. ; Acanthocephala - Acanthocephalus lucii and Neoechinorhynchus rutili; and Crustacea - Alebion elegans. Endoparasitaemia in the sampled population was influenced by the physico-chemical properties of the water body which is greatly affected by the intrusion of salt into the river due to its tidal conditions. However, the relatively high endoparasitaemia in the gastro-intestinal tract was associated with the nutrient rich ambience of the intestine which may allow easy establishment and multiplication of parasites.
Separated Household? Effects of Personalized Communication Devices on Nigerian Families’ Communication Pattern

In recent times with the emergence of newer communication technologies, concerns are raised over the possible alterations in family patterns of communication and interactions. This study using survey research methodology investigated the effects of new personalized communication devices (NPCD) on family communication patterns. 400 respondents were randomly selected from families in urban cities in South East Nigeria. Findings show that majority of individual family members own NPCDs with most possessing mobile/smart phones. The result shows that these families have high internet connectivity yet face to face/domestic conversation still appears to be the dominant and the preferred mode of communication within the family units. The result demonstrated a high level of interactivity as family members indicate spending a great number of hours interacting with mostly friends using these devices. Though the study significantly revealed that there is no noticeable alteration in family bond, family communication pattern seems to be altered from collectivist communication orientation to a more individualistic pattern owing to the solitary nature of these devices. Again, effects are still minimal and concentrated in urban areas especially among families that are educated and affluent. We conclude that with the invention of more sophisticated personalized communication devices there will be a rapid incursion into other sections of the Nigerian society and family communication may develop on unpredictable pattern that will lead to a complex communication pattern where these devices enhance communication and connections with family members and at the same time, create individualistic communication pattern. Keywords: New Personalized Communication Devices (NPCD); Family; Integration and Separation; Family communication; Family Dynamics.
A sharp isoperimetric inequiality in the plane

We show that among all the convex bounded domains in R2 having a fixed Fraenkel asymmetry index, there exists only one convex set (up to similarity) which minimizes the isoperimetric deficit. We also show how to construct this set. The result can be read as a sharp improvement of the isoperimetric inequality for convex planar domains.
FASCICULATE KLEOPATRINID CORALS FROM THE BASHKIRIAN (LATE CARBONIFEROUS) OF SARDAR FORMATION (OZBAK-KUH MOUNTAINS, EAST-CENTRAL IRAN)

In the East-Central Iran, the Sardar Formation (upper Visean–Moscovian) consists of shallow-water limestone with intercalations of shale containing rugose corals, tabulate corals and brachiopods. Ten sections were sampled in the Ozbak-kuh Mountains, from north to south. Among the rugose corals, an assemblage of fasciculate Kleopatrinidae has been collected. The latter contains the species: Paraheritschioides antoni antoni, P. antoni minor, P. gracilis and two new species for the genera Fomichevella and Heintzella. Heintzella is described from Iran for the first time. However, its age, as determined by conodonts and foraminifers, is early to middle Bashkirian (early late Carboniferous). The most similar, time-equivalent faunal associations are that of the Ellesmere Island, Sverdrup Basin in Arctic Canada, Alexander terrane and Brooks Range in southeastern Alaska and eastern Klamath terrane in northern California, where similar tropical warm water conditions have been identified during the Bashkirian in the northern hemisphere. During these times central Iran block and Northern provinces, characterized by a dominant carbonate facies and more diversified colonial coral faunas.
On effects of internal friction in the revised Goodman–Cowin theory with an independent kinematic internal length

In the present study, the revised Goodman–Cowin theory with an independent kinematic internal length proposed by Fang et al. for rapid dry granular flows is extended to account for the effects of internal friction. A thermodynamic analysis, based on the Muller–Liu entropy principle, is performed to deduce the ultimate equilibrium expressions of the constitutive equations. Results show that while internal friction contributes significantly to the equilibrium expressions of the constitutive variables, the dependence on internal friction of the Helmholtz free energy becomes a critical point for the present formulation in practical applications. In comparison with other constitutive formulations based on the revised Goodman–Cowin theory, the present formulation is the most general one and shows an ability to take into account the microstructural effects of volume fraction variation, internal friction and evolution of internal length of dry granular flows simultaneously.
Unknown Unknowns: Vol-of-Vol and the Cross Section of Stock Returns

This paper investigates how uncertainty about expected stock returns is priced in the cross-section of stocks. Uncertainty is proxied by the volatility of option-implied volatility (vol-of-vol), with higher vol-of-vol signaling more uncertainty among investors about expected stock returns. We nd that high vol-of-vol stocks underperform low vol-of-vol stocks by circa 0.85 percent over the next month, or about 10 percent per year. This negative vol-of-vol e ect cannot be explained by exposures to many previously documented factors, persists for more than 18 months, and also holds in a sample of ADRs. Statistical tests cannot con rm that the vol-of-vol e ect is driven by arbitrage frictions and optimism bias, or by exposures to jump risk or stochastic volatility risk. Moreover, we do not nd vol-of-vol to be a priced risk factor in traditional asset pricing models, or to re ect higher-order risk. Our results seem inconsistent with rational pricing of uncertainty by a representative agent, and indicate strong information linkages between option and stock markets. ∗Baltussen is at the Erasmus School of Economics, Erasmus University Rotterdam; e-mail: baltussen@ese.eur. nl. Van Bekkum is at the Erasmus School of Economics, Erasmus University Rotterdam; e-mail: vanbekkum@ese.eur. nl. Van Der Grient is at Robeco Quantitative Strategies, Rotterdam; e-mail: b.van. der.grient@gmail.com. Part of this research project was completed when either Baltussen or Van Bekkum was at the Department of Finance, Stern School of Business, New York University. This paper has bene ted from useful comments and discussions with Jules Van Binsbergen, Menachem Brenner, Stephen Brown, George Constantinides, Wayne Ferson, Mark Grinblatt, Arthur Korteweg, Tyler Shumway, Peter Wakker, Aurelio Vasquez, Robert Whitelaw, and Je rey Wurgler. The authors gratefully acknowledge nancial support by Tinbergen Institute, Erasmus Research Institute of Management, the Erasmus Trustfonds, and the Niels Stensen Foundation.
Industrial cooling tower design and operation in the moderate-continental climate conditions

A large number of producers offer a wide choice of various types of industrial cooling towers. Usually, a proper choice of pre-fabricated cooling tower satisfies end-user needs. However, if there are specific end-user requirements, it is necessary to design cooling tower according to those requirements. For the adhesive factory located in southern region of Serbia, 350 kW mechanical draught wet cooling tower was designed and built. Dimensioning of the cooling tower was done according to parameters of the ambient air, higher than the standard recommendations given in the literature. In this paper, the reasons for deviation from recommendations are given. The analysis of the cooling tower operation based on real meteorological parameters for 2015 is also shown in this paper. According to this analysis, cooling tower provides required water temperature in any season, and gives opportunity for energy savings in winter, with opportunity for heat capacity enlargement if production capacity is raised as it is planned in the factory.
SMA observations of the W3(OH) complex: Dynamical differentiation between W3(H2O) and W3(OH)

We present Submillimeter Array (SMA) observations of the HCN\,(3--2) and HCO$^+$\,(3--2) molecular lines toward the W3(H$_2$O) and W3(OH) star-forming complexes. Infall and outflow motions in the W3(H$_2$O) have been characterized by observing HCN and HCO$^+$ transitions. High-velocity blue/red-shifted emission, tracing the outflow, show multiple knots, which might originate in episodic and precessing outflows. `Blue-peaked' line profiles indicate that gas is infalling onto the W3(H$_2$O) dust core. The measured large mass accretion rate, 2.3$\times$10$^{-3}$~M$_{\odot}$~yr$^{-1}$, together with the small free-fall time scale, 5$\times$10$^{3}$~yr, suggest W3(H$_2$O) is in an early evolutionary stage of the process of formation of high-mass stars. For the W3(OH), a two-layer model fit to the HCN and HCO$^+$ spectral lines and Spizter/IRAC images support that the W3(OH) H{\sc ii} region is expanding and interacting with the ambient gas, with the shocked neutral gas being expanding with an expansion timescale of 6.4$\times$10$^{3}$~yr. The observations suggest different kinematical timescales and dynamical states for the W3(H$_2$O) and W3(OH).
Selection of sequence variants to improve genomic predictions

Methods of selecting sequence variants were compared using candidate sequence variants within or near genes for 444 Holsteins from run 5 (July 2015) of the 1000 Bull Genomes Project. Test 1 included single nucleotide polymorphisms (SNPs) for 481,904 candidate sequence variants within or near genes. Test 2 also included 249,966 insertions and deletions (indels). After merging sequence variants with 312,614 high-density (HD) SNPs and editing, Test 1 included 762,588 variants and Test 2 included 1,003,453. Imputation quality from findhap was assessed by keeping 404 of the sequenced animals in the reference population and randomly choosing 40 animals as a test set. Their sequence genotypes were reduced to the subset in common with HD genotypes and then imputed back to sequence. Predictions were tested using HD imputed genotypes for 26,970 progeny-tested bulls and 2015 data of 3,983 validation bulls with daughters that were first phenotyped after August 2011. Percentage of correctly imputed variants averaged 97.2% across all chromosomes in Test 1 and 97.0% in Test 2. Prediction reliability improved only 0.6 percentage points in Test 1 when sequence SNPs were added to HD SNPs and was only 0.4 points higher than HD SNPs in Test 2 when sequence SNPs and indels were included. However, selecting the 16,648 candidate SNPs with largest estimated effects and adding those to the 60,671 SNPs used in routine evaluations improved reliabilities by 2.7 percentage points (67.4% vs. 64.7%) on average across traits compared with 35.2% for parent average reliability. Thus, genomic prediction reliabilities can improve when adding selected sequence variants.