Miracle-dz/UniFAR-FTUs huggingface dataset:
The Relationships among Gait Parameters and Senior Fitness Variables in Korean Elderly People

This study investigated the relationship among gait variables and physical fitness variables for Korean elderly people. Two hundred elderly people aged 65 to 85, (100 men and 100 women) participated in this study. They performed senior fitness test consisting of 6 tests, 3 additional physical tests (vertical jump, one leg stand, and grip force), body composition measures, and gait test. The gait test used shoes having an inertia measurement device in the outer-soles. The results indicated that the stride length, 6-min walking, lean body mass, and dumbbell curls were significantly affected by age (the above 75 group vs. the below 75 group). Among 33 measured parameters, the principal component analysis (PCA) revealed five PCs such as gait characteristics, physical features, gait variability, and fitness levels. In addition, the correlation analysis showed that the preferred walking speed was significantly, positively associated with stride length and single support time, whereas it was negatively associated with double support time and gait variability. (Ed note: please confirm my modification) In conclusion, sarcopenia should be avoided in elderly people, and resistance exercise is highly recommended to help elderly people maintain their gait ability.
DURABILIDAD NATURAL DE LA MADERA DE DOS ESPECIES APTAS PARA LA INDUSTRIA DE LA CONSTRUCCIÓN

Durabilidad natural de la madera de dos especies aptas para la industria de la construccion. El objetivo de este trabajo fue determinar la resistencia natural de la madera de Pawlonia tomentosa y Melia azedarach, frente al ataque de tres cepas de los hongos xilofagos Picnoporus sanguineus, Laetiporus sulfureus y Ganoderma applanatum, bajo dos condiciones: no tratadas y despues de sufrir ciclos de lavado. Los objetivos especificos fueron a) constatar si la resistencia de las maderas estudiadas es alterada, por el ataque de los hongos despues de la eliminacion de las sustancias solubles en agua contenidas en la madera, y b) clasificar en categorias de resistencia de acuerdo al porcentaje de perdida de peso siguiendo los Criterios de Findlay. Se utilizaron 5 probetas de maderas de 3 x 1 x 0,5 cm, por especie y por hongo, las mismas fueron sometidas en laboratorio a la accion de los hongos y colocadas en estufa a 28 oC durante tres meses. Transcurrido este periodo, se peso cada una de las probetas y se determino el porcentaje de perdida de peso con respecto a su valor inicial. La madera de Pawlonia resulto moderadamente durable a la accion de los hongos Picnoporus y Laetiporus, independientemente de los tratamientos, resultando no durable al ataque del hongo Ganoderma. La madera de Melia resulto ser no durable y perecedera frente a la accion de las tres especies de hongos.
The role of cyanobacterial exopolysaccharides in structuring desert microbial crusts

Microbial crusts are present on surfaces of soils throughout the world. A key feature of these crusts in arid zones is the abundance of filamentous sheath-forming and polysaccharide-excreting cyanobacteria. Several isolates of cyanobacteria were prepared from crust samples (Nizzana sand dunes, north-western Negev Desert, Israel). Optimal growth conditions for two such isolates of Microcoleus sp. were defined, and the role of the excreted polysaccharides in affecting the hydrological properties of crust-covered sand dunes was studied. Experiments with the native crust microbial population demonstrated the possibility of net primary productivity at both high relative air humidities and low moisture content.
Composição centesimal e lipídica da carne de ovinos do nordeste brasileiro

The objective of this study was to evaluate the proximate and lipidic compositon of lamb meat from tropical sheep reared in Northeastern Brazil. Twenty-one rams, ten ½ Somalis Brasileira ½ ´ Crioula (SB-C) and 11 ½ Santa Ines ´ ½ Crioula (SI-C) were used. Two feeding regimes were utilized during weaning: grass hay (Cynodon dactylon) + leucena hay (Leucaena leucocephala) ad libitum (D1) and grass hay + leucena hay + 20% crude protein concentrate ad libitum (D2). It was not observed effect of crossbreed or feeding regime on proximate and lipidic composition of the meat. Moisture, protein, ash and fat values varied from 76.12 to 76.19%, 19.19 to 19.46%, 1.08 to 1.10% and 2.01 to 2.39%, respectively. Cholesterol content ranged from 54.43 to 60.05mg/100g of meat. The more abundant fatty acids in lamb fat were oleic, palmitic and stearic. Based on these results, it can be concluded that lamb meat from Notheastern Brazil has proximal and lipidic compositions similar to that animals from temperate regions of the World.
Exploring differences in substance use among emerging adults at-risk for problem gambling, and/or problem video gaming

ABSTRACT Both problem gambling (PG) and problem video gaming (PVG) contribute to physical, psychological, and interpersonal issues, and are associated with elevated substance use. This is particularly troublesome among emerging adults (18–27 years) who report high levels of substance use and represent a significant proportion of the gamblers and video game players. The present study assessed PG and PVG symptoms among 1,621 emerging adults (54.5% female; M = 20.55, SD = 2.70) in conjunction with their frequency of using cigarettes, alcohol, marijuana, and other drugs (e.g. cocaine, opioids). Results revealed that 6.1% and 22.7% of emerging adults were at-risk for PG or PVG, respectively. Those at at-risk for either PG or PVG had used substances more frequently than those who were either non-problematic or at low-risk. A small subset of participants (2.2%) were at-risk for both PG and PVG and were the most likely to report using cigarettes, marijuana, and other drugs frequently, even after accounting for the effects of age, gender, race, and gambling and video gaming frequency. As such, exhibiting a risk for both PG and PVG places individuals at greater risk for substance use. The implications of these findings to policy and future research are discussed.
Development and validation of the Principal Emotion Inventory: A mixed-methods approach

The current study aimed to develop and validate a Principal Emotion Inventory (PEI). Equipped with the theoretical-empirical strategy of test construction, this development and validation procedure consists of one expert survey and five sequential empirical studies with sufficient samples of participating principals based on existing emotion theories and empirical studies. The reliability, substantive validity, structural validity and external validity were tested using exploratory factor analysis, confirmative factor analysis, invariance analysis and structural equation modelling. As a result, a multidimensional model on principal emotions with 25 items was identified with a good model fit. The PEI consists of five factors: enjoyment, pride, frustration, anxiety and hopelessness. This paper is the first attempt to develop and validate a sound instrument that enables measuring school principals’ salient emotions in relation to their working experiences. The PEI would provide a validated instrument for future research on discovering the nature of principal emotions as an independent construct. Measurement is critically important to the replicability and robustness of the research. The findings on principal emotions are also informative for principal preparation and evaluation while taking emotions into consideration.
Traditional Decoction and PUAE Aqueous Extracts of Pomegranate Peels as Potential Low-Cost Anti-Tyrosinase Ingredients

The aim of the study is to evaluate the anti-tyrosinase activity of different aqueous extracts obtained from pomegranate juice processing by-products. External pomegranate peels of two certified cultivars (Akko and Wonderful), were extracted using only water as the extraction solvent. A traditional decoction and a pulsed ultrasound-assisted extraction (PUAE), both 10 min long, were performed and compared. All the aqueous extracts proved to be rich in bioactive compounds. In particular, the total phenolic content (TPC) ranged from 148 to 237 mg gallic acid equivalent (GAE)/g of dried peels (DW), the radical-scavenging ability (RSA) ranged from 307 to 472 mg ascorbic acid equivalent (AAE)/g DW, the free ellagic acid content (EA) ranged from 49 to 94 µg/mL, and the ellagitannins (ETs) ranged from 242 to 340 µg/mL. For both cultivars, PUAE extracts had higher ET content and a lower EC50, while the decoctions had slightly higher TPC, RSA, and free EA amounts. Principal component analysis (PCA) highlighted the direct correlation between the ET content and the tyrosinase enzyme inhibition (lower values of EC50). These findings suggest the potential use of both these natural extracts as low-cost lightening and/or anti-browning ingredients exploitable in several formulations (e.g., cosmetics) or extemporarily usable.
Conventional REITs, Islamic REITs and macroeconomic variables in Malaysia: a review

PurposeThe purpose of this paper is to empirically examine the return and dividend characteristics of two different types of Malaysian real estate investment trust (REIT) series, namely, conventional and Islamic, against macroeconomic variables over the period 2011-2017.Design/methodology/approachThe required data are derived from Datastream database. Multiple regression analysis is used to determine the impact of macroeconomic variables on financial performance of 13 Malaysian REIT series.FindingsResults show that the macroeconomic variables are able to predict future returns and dividends of Malaysian REITs. The analysis also suggests that Islamic REITs are seen to be less sensitive to macroeconomic variables and display better portfolio diversification benefits as compared to their conventional counterpart. The ongoing implications for large-cap and small-cap REITs are also highlighted.Research limitations/implicationsThe main limitation of the study is the small percentage of Islamic REITs sample due to limited period of observation available. However, the two Islamic REITs included are representative of Islamic REITs in Malaysia as both of them are listed in the Bursa Malaysia with asset size and market capitalization values more than RM1bn.Practical implicationsThe results of this study may serve as a useful input for financial market players on making strategic business decisions especially with regards to differences between conventional and Islamic REITs characteristics.Originality/valueThe main contribution of this paper is to explore the relationship between REITs and macroeconomic factors on a unique capital market (Malaysia) that allows comparison between conventional and its Islamic counterpart.
Genetic and morphological differentiation of Dikerogammarus invaders and their invasion history in Central Europe

SUMMARY 1. Biological invasions often involve close taxonomic relatives either as native/invader pairs or as invader/invader pairs. Precise identification and differentiation of species is therefore of paramount importance to reconstruct the invasion history. Genetic studies are indispensable in the case of morphologically conservative taxonomic groups. 2. We analysed the Pontocaspian freshwater amphipods Dikerogammarus that have successfully invaded the benthos of large Central European rivers. Taxonomic uncertainties were clarified by phylogenetic analyses of mitochondrial 16S and COI genes. The three-way partitioning of allozyme genotypes in a syntopic population further corroborated the taxonomic status of the three species Dikerogammarus haemobaphes, D. villosus and D. bispinosus. Dikerogammarus bispinosus had been prior misidentified as a subspecies of D. villosus. The conspicuous colour types of D. villosus, however, appeared to be conspecific. 3. The genetic identification of the previously more abundant D. haemobaphes individuals in old samples supported the ‘successive invasion wave’ hypothesis with D. haemobaphes as the first invader displaced by the second invader D. villosus. Dikerogammarus bispinosus could be a potential future invader. 4. Haplotype differentiation was apparent between two invasion lines of D. haemobaphes, but the occurrence of a single widespread haplotype indicates genetic impoverishment during rapid colonisation.
Biomass, litter and leaf surface area estimates of an oak- hickory forest

The biomass (15.7 kg/M2) net primary production (600 gm/m2/yr) of aboveground parts and leaf surface area (approximately 4 m2/m2) were estimated for an oak-hickory forest. Weights for plants 2.54 cm dbh were estimated by establishing their relationship to dbh. This was accomplished by harvesting the aboveground portions of twenty-three broad-leaved deciduous trees (14 species) and separating each into leaves, current year's stems, and large branches and bole. Leaf surface area for each tree was based on the surface area and weight relation of fifty randomly selected leaves.
Industry Partners’ feedback on the OJT performance of Bachelor of Science in Information Technology (BSIT) Students

This study determined the feedback of trainers/supervisors regarding the respondents’ personal, interpersonal and technical understanding skills in their on-the-job training (OJT) program using descriptive research design. The respondents of the study were 156 BSIT students enrolled in the OJT Program during the 2nd Semester of A.Y. 2018–2019 at Nueva Ecija University of Science Technology, San Isidro Campus. The findings of the study have shown that the students were excellent in numerous personal skills. Likewise, they were very good in most of their technical understanding skills which are hard skills in the field of Information Technology. Still, there were areas in which students’ performance need enhancement. Due to this, the researchers proposed a plan of action as an intervention to improve the program that would later result in the improvement of the students’ performance in their OJT. Keywords— Feedback, information technology, interpersonal skills, on-the-job training, personal skills, technical understanding skills.
Oxygenated Clerosterols Isolated from the Marine Alga Codium arabicum

Clerostetol [1], (24S)-24-ethyl-3-oxocholesta-4,25-dien-6β-ol [2], (24S)-24-ethyl-5α-hydroperoxycholesta-6,25-dien-3β-ol [3], (24S)-24-ethyl-7-oxocholesta-5,25-dien-3β-ol [4], (24S)-24-ethyl-7α-hydroperoxycholesta-5,25-dien-3β-ol [5], and (24S)-24-ethylcholesta-5,25-dien-3β,7α-diol [6], were isolated from the marine green alga Codium arabicum. A portion of steroid 5 was epimerized to (24S)-24-ethyl-7β-hydroperoxycholesta5,25-dien-3β-ol [8]. LAH reduction of an inseparable mixture of 5 and 8 yielded diol 6 and (24S)-24-ethylcholesta-5,25-dien-3β,7β-diol [7]. Among these compounds, sterols 2, 3, and 5 were isolated for the first time from a natural source. Metabolites 2-6 showed significant cytotoxicity toward various cancer cell lines.
Recovery assessment in Lake Nemi (Italy) after a twenty year period (1981–2001) using plant-associated invertebrates

Lake Nemi was subjected to organic pollution in the 1970s due to domestic wastes, which led to a severe eutrophication process. Local authorities consequently planned a gradual waste diversion programme completed in 1990. Comparison between data on plant-associated invertebrates in the period of maximum eutrophication (1981/82) and twenty years after the total waste diversion (2001/02) was carried out with the aim of demonstrating the performance of this littoral community for the purpose of lake recovery assessment. Following the water clarity improvement characterizing the 2001/02 period, the macrophyte community displayed an amelioration in plant diversification, an enlargement of the colonized area, and an appearance of Charales, important bioindicators of oligotrophic conditions. In complete agreement with this new situation, the invertebrate fauna extended its colonization, and the species composition and quantitative structure changed completely. A considerable increase in species richness and diversity, and significant modifications of percentages and densities of bioindicator taxa (cladocerans, gastropods and acari) showed a very appreciable recovery, which can be defined as a phase of “oligotrophication”. This trophic state is closely related to nutrient reduction in the water and enhanced by a drift of organic materials from littoral to profundal bottoms. This was due to the remarkable water level reduction of about five meters which occurred in the lake in recent times.
Biomass energy consumption and sustainable development

ABSTRACT The purpose of this study is to analyze the impact of biomass energy consumption and non-renewable energy consumption on sustainable development in OECD countries. Data from 36 OECD member countries for the period 1990–2017 have been obtained with the System-GMM method. According to the estimation results, the effect of biomass energy consumption on per capita sustainable development is positive and statistically significant whereas the effect of non-renewable energy on sustainable development is negative. According to this, the use of biomass energy sources in these countries causes the level of per capita sustainable development to rise. OECD countries should prefer biomass energy instead of non-renewable energy sources to reach the 2030 SDGs. Thus, this study shows the importance of biomass energy for sustainable development.
Secondary Growth and Deformation of Stem Tissues in the Lower Carboniferous Seed Fern Calamopitys

Some Carboniferous seed ferns undergo extensive secondary growth, with secondary vascular tissues occupying increased space within the axis. Mechanisms of accommodating secondary growth in the stem cortex vary significantly between different seed ferns and depend on the degree of secondary growth and position of secondary tissues relative to the cortex. Cortical tissue adjacent to the secondary vascular cylinder is often highly deformed, whereas primary cortex tissue farther away from the secondary growth may be less strained. Developmental patterns of primary and secondary tissues are observed in two species of Calamopitys from the Lower Carboniferous and are compared with patterns of the Upper Carboniferous “pteridosperm” Lyginopteris oldhamia. Calamopitys embergeri and Calamopitys schweitzeri show different organizations, development, and deformations of the cortex compared with Lyginopteris. The main differences include (1) retention of a massive cortex in relation to the degree of development of the vascular cambial tissues, (2) cortical deformation confined to areas around the periphery of the vascular cylinder rather than toward the periphery of the stem, and (3) absence of a discrete periderm layer. Our findings also indicate that cambial growth in Calamopitys was capable of producing relatively large cylinders of vascular tissues within the primary body without causing a sloughing of the outer cortex.
Phylogenetic Systematics and Classification of the Sacoglossa (Mollusca, Gastropoda, Opisthobranchia)

Character analysis is performed based on anatomical information on 95 species of Sacoglossa (Mollusca, Opisthobranchia). Functional and developmental information is included, where available. Phylogenetic analysis to generic level is performed. The shelled Oxynoacea is a monophyletic group containing three families, Volvatellidae, Juliidae and Oxynoidae. The family Cylindrobullidae is excluded from the Sacoglossa, but forms a sister taxon. The non-shelled Placobranchacea is also a monophyletic group composed of two monophyletic superfamilies, Placobranchoidea (= Elysioidea) and Limapontioidea (= Stiligeroidea; = Polybranchoidea). Relationships among most genera included in the Placobranchoidea remain unresolved. The family Boselliidae is retained until further examination of the included species has shown whether it should be included in the Placobranchidae. The Platyhedylidae, comprising the genera Platyhedyle and Gascoignella, is included in the Placobranchoidea. Of the families included in the Limapontioidea, the \`Polybranchiidae' appears to be paraphyletic, though monophyly could be \`forced' by applying extra weight to four characters. The Hermaeidae forms a monophyletic group as does the Limapontiidae. The latter family may contain two or three subfamilies, but this must await further anatomical studies. The families Alderiidae and Costasiellidae are superfluous, the genera clustering within the Limapontiidae.
Description of Students Thinking on Warshall-Floyd Algorithm

The shortest path continues to be a trend until now that is always discussed and developed. This study focuses on the construction process and description of the students' understanding in deciding the shortest route based on the matrix iteration according to the Floyd-Warshall algorithm. The research approach used is descriptive qualitative research and the data collection technique is a test technique. The research data included problem-solving by four students with different abilities and the result data were analyzed inductively. The results showed that the matrix iteration with the formula for determining the entry of the iteration matrix x n = minimum(d ijk-1 , d ikk-1 + d kjk-1 ) was followed without any constraints by all students until the 7th iteration. It was found that the inaccuracy of taking entries in the 1st iteration by students with low ability caused calculation errors and failure in finding the shortest route.
Wheat cultivars can be screened for NaCl salinity tolerance by measuring leaf chlorophyll content and shoot sap potassium.

An efficient screening procedure is essential for breeding for salinity-tolerant crops, but there is no consensus regarding the best approach. While some authors argue that the selection of tolerant genotypes should be undertaken under field conditions, others believe that field-based trials for salinity tolerance is problematic due to confounding environmental factors. Also, the choice of specific physiological trait(s) used is often subjective, frequently depending on the ‘personal philosophy’ of the researcher. In this work, we undertook an unbiased assessment of a multitude of physiological and agronomical parameters in an attempt to find a combination that would satisfy two main criteria: (1) be relatively easy and quick to measure; and (2) possess a high predictive power. Fourteen physiological and agronomical traits were measured and analysed using various statistical methods (multiple regression, cluster analysis, principal component analysis). Our results indicate that measuring just two parameters; changes in the chlorophyll content in the 5th leaf after 6 weeks of NaCl treatment, and shoot sap K+ content in control plants, measured at the same time, satisfied these requirements and could be used as efficient screening tools in wheat breeding programs. Interestingly, salt tolerance was associated with lower but not higher K+ content in control plants. The physiological mechanisms involved are discussed.