Miracle-dz/UniFAR-FTUs huggingface dataset:
Enhancing the Mechanical Performance of Glass Fiber‐Reinforced Polymer Composites using Multi‐Walled Carbon Nanotubes

Herein, the effects of multi‐walled carbon nanotubes (MWCNTs) on the mechanical performance of glass fiber‐reinforced polymer composites (GFRPs) are investigated, and the optimized MWCNT content is obtained through a series of experiments. MWCNTs are deposited on unidirectional glass fiber cloths using a solution dip coating method. The original fiber cloths and fiber cloths deposited with MWCNTs are used to manufacture GFRPs using a vacuum‐assisted resin injection process. The GFRP specimens are then synthesized to characterize the tension, bending, interlaminar shear strength, and mode‐II fracture toughness by uniaxial tension, three‐point bending, short beam shear, and end notch flexural tests. The results confirm that the mechanical performance of the original GFRPs increases with the addition of MWCNTs, and GFRPs with an MWCNT content of 0.3 wt% exhibit better comprehensive mechanical properties. Scanning electron microscopy is used to analyze the damage mechanism of the broken specimens with and without MWCNT modification.
The equivalence of the minimal dominant set and the myopic stable set for coalition function form games

In cooperative games, the coalition structure core is, despite its potential emptiness, one of the most popular solutions. While it is a fundamentally static concept, the consideration of a sequential extension of the underlying dominance correspondence gave rise to a selection of non-empty generalizations. Among these, the payoff-equivalence minimal dominant set and the myopic stable set are defined by a similar set of conditions. We identify some problems with the payoff-equivalence minimal dominant set and propose an appropriate reformulation called the minimal dominant set. We show that replacing asymptotic external stability by sequential weak dominance leaves the myopic stable set unaffected. The myopic stable set is therefore equivalent to the minimal dominant set.
Influência de fatores de meio ambiente na variação mensal da composição e contagem de células somáticas do leite em rebanhos no Estado de Minas Gerais

A total of 102,098 individual monthly-test-day records of Holstein cows from 189 herds of the state of Minas Gerais from January 1999 to December 2001 were used to evaluate the effects of environmental factors on the composition and somatic cell counts (CCSs) of milk. The CCSs were transformed to somatic cell scores (SCSs). Unadjusted means and standard deviations for milk yield, fat and protein percentages, and SCSs were, respectively, 22.87 and 7.35kg, 3.56 and 0.72%, 3.15 and 0.37%, 3.07 and 2.33 for first parity and 24.99 and 9.33kg, 3.57 and 0.76%, 3.14 and 0.38%, 4.23 and 2.3 for later parities. Least squares methodologies were used and the analyses were separated within lactation age group as first and later parities. Effects of herd-year, month of calving, days in milk, season of calving, age at calving and breed group were considered in order to explain total variations. In both data sets, except for protein percentage, for which days in milk was the most contributing effect for the variation, herd-year was responsible for most of the variation, followed by days in milk. The effect of herd-year was also the most important to explain the variation of SCSs, respectively, 19.0 and 34.6% for first and later parities, followed in importance by days in milk, respectively, 4.4 and 4.0% of the total variation. Milk fat and protein percentages were high early in the lactation, decreased to a minimum near 50 days followed by a steady increase to the end of the lactation while milk yield decreased. Fat and protein percentages were highest in winter and lowest in summer months. Seasonal variations of these components followed opposed trends of milk yield. The SCSs were high in the first 10 days of lactation decreasing to a minimum value respectively, from 50 to 60, and from 30 to 40 days for first and later parities and then increasing with similar rates to the end of the lactation. The variation of SCSs with month was similar for first and later parities. SCSs increased from February to June, and then decreased to a minimum in October. The increase of SCSs with cow age was curvilinear in first and linear in later lactations.
Effects of feed carbohydrates with contrasting properties on rumen fermentation and methane release in vitro

The RUSITEC system was used to test eight diets where the supplements differed in their main carbohydrate source. The forage-to-supplement ratio was 1:1. The eight feeds characterizing the supplements by specific carbohydrates were oat hulls (modeling lignified fiber), soybean hulls (non-lignified fiber), apple pulp (pectin), sugar beet pulp (hemicelluloses and pectin), guar gum (galactomannan), Jerusalem artichoke tubers (fructan), molasses (sucrose), and wheat (starch). Supplements were iso-energetic and iso-nitrogenous. The dietary carbohydrate fractions were analyzed in detail with a combination of enzymatic and chemical methods. The methane release (mmol g-1 degraded organic matter) increased in the order of diets characterized by oat hulls (0.92), guar gum (0.99), wheat (1.04), soybean hulls (1.13), apple pulp (1.15), Jerusalem artichoke (1.21), sugar beet pulp (1.24), and molasses (1.37). According to multiple regression analysis, diets with high sugar content enhanced methane release while methane.
Development of techniques for the large-scale rearing of the larvae of the Australian freshwater fish golden perch, Macquaria ambigua (Richardson, 1845)

Experiments were conducted over four consecutive breeding seasons. Golden perch, Macquaria ambigua, larvae (total length, 5.0 mm) held at 23o to 25oC, commenced feeding on crustacean zooplankton (<350 pm in length) five days after hatching, at age D6 (D1 = day of hatch). Zooplankton density had a significant effect (P < 0.01) on the survival of larvae in 70-L aquaria. A delay of only two days to age D8 in initial feeding significantly reduced (P < 0.01) survival, and larvae not offered zooplankton until D10 did not commence feeding. There was a positive linear relationship (r2 = 0.98) between survival in earthen ponds (0-57.6%) and the volume of small zooplankton sampled from the ponds at stocking, but survival was not affected by larval stocking density (32-365 m-2) or length of the culture period (28-53 days). A mean survival of 44.6% in ponds that were left dry over winter and then stocked 10-14 days after filling, was significantly higher (P < 0.01) than survival in ponds stocked only 2-5 days after filling or in ponds inundated during winter. Survival, growth and production were not significantly different among ponds fertilized with inorganic fertilizer (NPK) alone or in combination with lucerne hay or poultry manure. Larvae grew at rates of 0.5-1.1 mm day-1, production rates were up to 153 kg ha-1 and a maximum number of 271 000 juveniles were reared in a 0.3 ha pond. Approximately 3 × 106 golden perch are produced annually at hatcheries in eastern Australia using techniques developed during this study.
Do Russian Police Fabricate Drug Offenses? Evidence From Seized Heroin’s Weight Distribution

Current Russian drug policy is punitive toward people who use drugs. Moreover, criminal justice in Russia is driven by strong organizational incentives to increase performance indicators of police such as clearance rate. Taken together, these might lead to the use of extrajudicial and illegal police practices, as documented by several qualitative studies. In this article, we explore quantitative evidence of such practices, namely, weight anomalies of the seized heroin that result from minimum threshold amounts established by the law. We find significant discontinuities in the weight distribution of seized heroin near minimum threshold amounts. Placebo tests rule out alternative explanations of the discontinuity and show that the most likely source of the revealed discontinuities is police manipulations with seized heroin.
Whether immediate frozen-thawed embryo transfer improves IVF outcome in non-elective freeze all policy

Department of Women’s and Children’s Health, University of Padua, Salus Pueri, Padova, Italy Correspondence to: Amerigo Vitagliano, MD. Department of Women’s and Children’s Health, University of Padua, Salus Pueri, Via Giustiniani, 3, 35128 Padova PD, Italy. Email: amerigovitagliano.md@gmail.com. Provenance and Peer Review: This article was commissioned by the editorial office, Annals of Translational Medicine. The article did not undergo external peer review. Comment on: Huang J, Lu X, Xie Q, et al. Timing of frozen-thawed embryo transfer after controlled ovarian stimulation in a non-elective freeze-all policy. Ann Transl Med 2019;7:752.
DNA damage protection and antioxidant activities of peptides isolated from sour meat co-fermented by P. pentosaceus SWU73571 and L. curvatus LAB26

ABSTRACT DNA damage and antioxidant activities of sour meat peptides were evaluated using chemiluminescence and spectroscopic methods. All sour meat peptides exhibited DNA damage protection and free radical scavenging activities against DPPH radicals, hydroxyl radicals and superoxide anions in a dose-dependent manner, and showed the strongest inhibition of hydroxyl radicals and the weakest inhibition of superoxide anion radicals. The IC50 values of sour meat peptides from inoculating fermentation were 2.11, 4.23, 0.097 and 9.85 mg/mL for the inhibition of DNA damage and scavenging capacities of DPPH radicals, hydroxyl radicals and superoxide anion radicals, respectively, and were significantly lower than those of traditional fermentation (P < 0.05). Compared to traditional fermentation, co-fermentation of P. pentosaceus SWU73571 and L. curvatus LAB26 significantly enhanced inhibition of DNA damage and antioxidant activities of peptides (P < 0.05), revealing good microbial sources as a natural starter for the improvement of antioxidant capacity of fermented meat products.
Improving Accuracy and Robustness in HF-RFID-Based Indoor Positioning With Kalman Filtering and Tukey Smoothing

In this article, we present a scalable, robust, and accurate indoor positioning system that uses a passive high-frequency radio frequency identification (HF RFID)-based positioning measurement system combined with Tukey smoother and a linear Kalman filter to locate mobile objects with an average measurement error of less than 3.7 cm. The proposed system is implemented and tested with extensive experiments, and our results show that the proposed system outperforms similar existing systems in minimizing the average positioning error and has better robustness against noisy sensor readings caused by hardware malfunctions or external error sources.
Effective-Configuration WPT Systems for Drones Charging Area Extension Featuring Quasi-Uniform Magnetic Coupling

This article presents a quasi-uniform magnetic coupling-based effective-configuration wireless power transfer (WPT) system for drones wider-area charging with multiple extended transmitter coils. The extended transmitter coil with two windings is proposed to cooperate with a small receiver coil for misalignment tolerance with efficient and quasi-uniform coupling. The extended coil is worked out by a simulation-based algorithm, which can be implemented by simple and low-cost procedures. Independent-operating multiple extended coils are designed with overlaps and a dynamic topology for low-cost and robust charging area extension according to performance analyses. Moreover, a novel landed position detection method based on the negative coupling characteristic of the extended coils is proposed for system configuration. The design enables cost-effective charging area extension and assists to sense the position of drones. A prototype is established with a charging area nearly 20 times the area of the receiver coil. Experimental results prove the feasibility of the design, which can be applied flexibly.
Synthesis of Isozymes of Superoxide Dismutase in Maize Leaves in Response to O3, SO2 and Elevated O2

Matters, G. L. and Scandalios, J. G. 1987. Synthesis of isozymes of superoxide dismutase in maize leaves in response to 03, S02 and elevated 02. — J. exp. Bot. 38: 842-852. The activities of the enzymes superoxide dismutase (SOD) and catalase were determined in maize leaves treated with 03 or S02 for 8 h, or with elevated levels of oxygen for up to 96 h. Neither 03 nor S02 significantly increased the levels of superoxide dismutase or catalase activity. However, after 72 h in an atmosphere containing 90% oxygen, superoxide dismutase activity was increased, but not the activities of catalase, ascorbate peroxidase, and malate dehydrogenase. Immunological analysis showed that amounts of the cytosolic superoxide dismutase isozymes, SOD-2 and SOD-4, were increased by the elevated oxygen but not the chroloplast (SOD-1) or mitochondrial (SOD-3) isozymes. Immunoprecipitation of translation products of leaf polysomes indicated that the higher levels of SOD-2 and SOD-4 were due to increased amounts of polysome-bound mRNA coding for these proteins. The specific response of SOD-2 and SOD-4 to 90% oxygen treatments contrasts with the increase in all SOD isozymes in maize leaves treated with the herbicide paraquat.
Environmental determinants for natural regeneration of gallery forest at the Cerrado/Amazonia boundaries in Brazil

Natural regeneration and structure and their relationship to environmental variables were studied in three sections of a gallery forest, in Eastern Mato Grosso, Brazil (14o43′S and 52o21′W). The assumption was that natural regeneration is constrained by environmental determinants at all stages of development of the tree community. The objective was to analyse the forest structure and to verify the relationship between species distribution and abundance at different stages of regeneration and environmental variables. In each section, 47 contiguous (10x10m) permanent plots were established to sample trees (gbh≥15cm), following a systematic design. Seedlings (0.01 to 1m height), saplings (1.01 to 2m) and poles (from 2.01m height to gbh<15cm) were sampled in sub-plots of 1x1m, 2x2m and 5x5m, respectively. In each plot, soil properties, gaps projection, bamboos, rocky cover, declivity and depth of ground watertable were determined. The relationships between the environmental variables with trees and seedling communities were assessed by canonical correspondence analysis. In spite of the sections being near to each other, they presented large differences in floristics, structure and site conditions. The forest soil presented a low cation exchange capacity and a high level of Al saturation. The occurrence of bamboos and gaps and the depth of ground watertable limited the occurrence of poles and trees. The high degree of structural heterogeneity for each regeneration category was related primarily to a humidity gradient; but soil fertility (Ca+Mg) was also a determinant of seedling and sapling communities.
Dietary Influences on Bovine Milk cis‐9,trans‐11‐Conjugated Linoleic Acid Content

The effects of grass dry matter (DM) allowance and dietary supplements of full fat rapeseeds on levels of cis-9,trans-11 octadecadienoic (CLA) acid in bovine milk were investigated. Grass allowance of 16 kg/(cow * day) resulted in reduced (p<0.05) milk fat CLA levels (3.91 mg CLA/g fat) compared to 20 kg/(cow * day) after 19 wk treatment. CLA levels increased in milk fat from cows on a high-rapeseed-supplemented diet (p<0.001) (1650 g/(cow * day) full fat rapeseed) compared to the control (pasture) and low rapeseed (p<0.01) (825 g/(cow * day) full fat rapeseed) supplemented diets. The variation in milk fat CLA levels among individual cows over both trials was 1.5-16 mg/g.
Studies on the defaunation of the ovine rumen using dioctyl sodium sulphosuccinate

The lethal concentrations of dioctyl sodium Sulphosuccinate (DSS) to nine species of rumen ciliate protozoa were determined. The quantity of DSS required to remove these protozoa from the rumen of sheep was approximately 30 times the lethal concentration. This was caused by interaction of the DSS with rumen particulate material, and the protozoa were killed only after the particulate fraction was saturated with DSS. Defaunation was conducted most efficiently after withdrawal of food for 24 h followed by a period (1–4 d) of reduced food intake by the host animal. In toxic concentrations of DSS the cilia of both holotrich and entodiniomorphid protozoa became detached, followed by leakage of the cell contents via the gullet or anus (in the entodiniomorphids) or at variable points in the cell wall (in the holotrichs). The population densities of most of the other rumen micro-organisms examined decreased during defaunation, but regained their original population density within 11–21 d. After this time the population densities of these organisms exceeded that shown before defaunation, with the exception of Oscillospira guilliermondii which was eliminated.
Promoting junior high school students’ active learning using concrete object demonstration in line and angle topic

This research aims to implement students’ active learning through the demonstration method of concrete objects in the line and angle topics in Junior High School. This was a Class Action Research implemented to 40 students at 7th grade of MTsN Batang Toru. The data collection techniques were carried out by observation and distribution of a questionnaire. The data analysis technique used the analysis of Miles and Huberman models with three stages, namely data reduction, data display, and drawing conclusions. This research used three cycles to obtain the desired results. The results of the observation during the learning process showed the observations of the first cycle in the first meeting, student activity was 34.82%, and that in the second meeting was 42.33%. Furthermore, the students’ activeness in the second cycle of the first meeting was 51.5%, and that in the second meeting was 63.83%. The third cycle of the first meeting was 74.16%, at the second meeting was 85.16%. A questionnaire indicated that students’ activeness during the first, second and third cycles were 44.16%, 64.16% and 84.33%, respectively. It can be concluded that the activeness of students in the line and angle topics in mathematics lessons using the concrete object demonstration method had increased as expected.
The nutritive value of hulled and hulless barley for growing pigs. 1. Determination of energy and protein digestibility with the in vivo and in vitro method

An experiment was conducted to determine the digestibility of energy and crude protein (CP) in hulled and hulless barley with the in vivo and in vitro method. Six barrows were fed six diets according to a 6 × 6 Latin square design. The six diets included 950 g kg of four barleys and two mixtures. Diet A: hulled barley, c.v. Harrington I. Diet B: hulled barley, c.v. Harrington II. The origin of c.v. Harrington in diet B was different from that in diet A, and therefore referred to as c.v. Harrington II. Diet C: hulless barley, c.v. CDC Buck. Diet D: hulless barley, c.v. CDC Richard. Diet E: mixture of c.v. Harrington I and c.v. CDC Buck (50:50, wt/wt). Diet F: mixture of c.v. Harrington II and c.v. CDC Richard (50:50, wt/wt). The mixtures were created in order to establish linear regression equations between in vivo and in vitro methods. Chromic oxide was used as the digestibility marker. The barrows were fed twice daily, at 08.00 and 20.00 h. Each experimental period consisted of an 8-d adaptation period followed by a 2-d collection period of faeces. The initial and final average body weights of the barrows were 40 and 90 kg, respectively. The in vivo energy digestibilities were higher (P < 0.05) in the hulless (81.4 to 84.7%) than in the hulled barleys (76.9 to 77.6%). The digestible energy contents in the hulless barleys ranged from 14.01 to 14.60 MJ kg-1 while the contents in the hulled barleys ranged from 13.05 to 13.16 MJ kg-1 (as-fed). The average digestible CP contents in the hulled and hulless barleys were nearly similar and were 88.0 and 89.7 g kg-1 (as-fed), respectively. The in vivo energy and CP digestibilities in the barleys and their mixtures can be accurately predicted by in vitro values, as these were very high correlations between these methods for energy (r2 = 0.93) and CP (r2 = 0.87).
Effect of genotype and storage time on stability of colour, phenolic compounds and ascorbic acid in red raspberry (Rubus idaeus L.) jams

Changes in colour, phenolic composition and ascorbic acid (AA) concentrations in jams made from eight, floricane fruiting, red raspberry genotypes stored for six months at 20°C were investigated. Additionally, the relationship between genotypes and quality parameters was assessed. On average for all genotypes, 83% AA degradation was observed during the first three months of storage. After six months, the concentrations of anthocyanins, total quercetin glycosides and lambertianin C decreased by 80%, 13% and 7%, while ellagic acid conjugates and total phenolics increased by 47% and 8%, respectively. The anthocyanins detected in highest concentrations in fresh jams, that is, cyanidin-3-(2g-glucosylrutinoside), cyanidin-3-sophoroside, cyanidin-3-glucoside and cyanidin-3-rutinoside showed the highest stability during storage, that is, 28%, 21%, 12% and 11% left after six months of storage, respectively. A significant decrease in colour (lightness, chroma and hue) was also observed during storage. The colour changes of stored jams, however, were much slower than the pigment degradation. On average, lightness, chroma and hue decreased by 13%, 29% and 18% during six months of storage, respectively. The lowest anthocyanin degradation was observed in jams characterised by red-bluish colour and high initial anthocyanin content, that is, ‘Veten’, ‘RU024 01003’ and ‘RU974 07002’ with 72–78% degradation after storage for six months, while the highest losses (82–93%) were observed in jams characterised by saturated red-orange colour, high ellagitanin and low initial anthocyanin contents, that is, ‘Glen Magna’, ‘Malling Hestia’ and ‘Octavia’. The results indicate that the genotypes ‘RU024 01003’ and ‘RU974 07002’ might have the potential to replace ‘Veten’, the main cultivar for jam processing in Norway, as new cultivars for industrial processing provided good cultivation qualities and satisfactory taste and flavour of the products.
Application of Phase Feeding in Swine Production

Abstract Han, In K. , Lee, J.H. , Kim, J.H. , Kim, Y.G. , Kim, J.D. and Paik, I.K. 2000. Application of phase feeding in swine production. J. Appl. Anim. Res., 17: 27–56. Phase feeding is a term used to describe the feeding of several diets for a relatively short period of time in order to closely meet the pigs ‘nutrient requirements. With current feeding strategy, it is not likely to meet the animals’ nutrients requirement which rapidly changes according to their age. By phase feeding, the nutrient requirements could be met more closely and it provides a more economical and environmentally sound feeding program for the pig. From numerous research results, pigs reared on phase feeding program seemed to grow as well as pigs reared on conventional feeding program (usually one or two phase feeding in finishing period). However, nutrients excretion could be dramatically reduced with phase feeding program. Reduced amounts of nitrogen and phosphorus were reported by various researchers. To apply phase feeding into practical swine industry, digestibility or availability of ingredients, gender, genetics, growth potential, physiological status of the animals and feed additives should be carefully considered as these factors will affect the growth performance and nutrient utilization of the animals. Phase feeding can be applied more efficiently when producers have computerized feeding system. Thus there might be a need to define appropriate number of phases and proper levels of nutrients supply for pigs of each growth stage.