Miracle-dz/UniFAR-FTUs huggingface dataset:
High-involvement work practices, employee trust and engagement: the mediating role of perceived organisational politics

PurposeThe purpose of this paper is to examine perceptions of organisational politics (POP) as a mediator of the relationship between high-involvement work practices (HIWPs) and employee outcomes (trust in employer and employee engagement). Design/methodology/approachUsing a longitudinal time-lagged quantitative survey design, data were collected in two waves (n = 1,554, time 1, and n = 970, time 2). Direct and indirect (mediation) effects were tested through structural equation modelling (SEM) in AMOS.FindingsThe results of SEM suggest that HIWPs are positively associated with trust in the employer and employee engagement and negatively associated with POP. The data supported a partial mediation model in which POP mediated the relationship between HIWPs and both trust in the employer and employee engagement levels.Practical implicationsHIWPs reduce employees’ perceptions of the degree to which their work environment is politicised, enhance employee engagement and develop a more trusting relationship between employee and employer.Originality/valuePerceptions that workplace environments are characterised by political behaviours are ubiquitous and a large body of research has highlighted their detrimental effects on both employees and employers. This is the first study that has examined the potential of HIWPs in reducing such perceptions, which in turn, can foster employee engagement and enhance trust in the employer. Longitudinal studies of the effect HIWPs have on employee perceptions and attitudes are also still scarce.
In-vitro and in-vivo toxicological studies of hydroethanolic leaf extract of Ocimum gratissimum Linn. (Lamiaceae) in Wistar rats

Herbal medicines have been used for human health management, prevention, and cure of human diseases since ancient civilizations. In recent days, the use of herbal medicines has increased significantly in various forms such as herbal formulations, dietary supplements, and nutraceuticals in the global market. This growing demand undoubtedly improves the therapeutic claims of herbal medicines as biomedicines and/or functional foods. However, the safe use of herbal products and herbal drugs remains a challenge due to toxicity and regulatory issues. This study aims to evaluate the cytotoxicity of hydroethanolic leaf extract of Ocimum gratissimum on the larvae of Artemia salina in vitro and in-vivo acute and subchronic toxicity study in Wistar rats. The test on A. salina showed that the hydroalcoholic extract of O. gratissimum did not show any toxicity. The LC50 values of O. gratissimum on brine shrimp were 0.60 ± 0.19 mg/ml. The acute toxicity study revealed no behavioral disturbances or death in rats. The extract lethal dose (LD50) is greater than 5000 mg/kg body weight. Subchronic toxicity results showed a significant increase in abdominal fat at 1000 mg/kg. As for the hematological parameters, there was a significant decrease in the number of platelets at doses of 500 and 1000 mg/kg. Some biochemical parameters were affected by repeated administration of O. gratissimum extract for 28 days. Alkaline phosphatase (ALP) activity was increased at 500 and 1000 mg/kg. Creatine phosphokinase (CPK) and urea decreased at 500 and 1000 mg/kg, respectively. Blood electrolytes showed no significant change. Histological sections showed no organ damage. In conclusion, aqueous extract of O. gratissimum caused no adverse effects in rats after acute and subchronic treatment at 500 and 1000 mg/kg. However, specific hematological and biochemical parameters should be monitored during chronic use. Keywords: Ocimum gratissimum, cytotoxicity, toxicity, Wistar rats.
User data privacy in multimedia domain using 3–3 LSB-based color image steganography with RC4 and Bernoulli map protection

Abstract. Social media sites such as Facebook, Twitter, etc. have become commonplace in everyday life. With the emergence of the internet, the amount of data being created and communicated within social networks has increased exponentially. As much as we enjoy the exchange of information that occurs on social media, protecting and maintaining privacy demands a lot of effort. Users’ data that are to be kept private should be treated as confidential information. As a result, securing data exchange on the internet has become a critical and urgent issue. We have suggested a method for protecting user data which is encrypted by using the Rivest Cipher 4 (RC4) algorithm in multimedia images with the help of 3–3 least significant bits (LSB) techniques, with the added safety of Bernoulli map. We call this technique the “user data protection scheme. ” 3–3 LSB is a message hiding process in which the first three stand for three LSB and the next three stand for all three channels (R, G, and B). In this method, we are using the Rivest Cipher 4 (RC4) encryption algorithm to encrypt the user’s data, which will then be embedded into the multimedia image in the next step. With the help of the Bernoulli map, we generate a random sequence of length similar to the size of the image. For every random number generated by the Bernoulli map, we determine the location in the plane and place three bits of secret message into the cover image using the LSB technique. Since we have used two different encryption techniques, i.e., RC4 for encryption of user data and Bernoulli map for embedding encrypted data at random locations over the cover image, our method is more secure than others. We performed this analysis to equate peak signal-to-noise ratio (PSNR) and mean square error. Our experimental result shows that 9 bpp can be embedded in color images with a PSNR higher than 42 dB, and for the gray scale image embedding capacity is 3 bpp with a PSNR higher than 42 dB, which provides better results. Apart from this, it produces less distorted stego-images than currently used methods (an average of 1.68 bpp).
High-Risk HPV with Multiple Infections Promotes CYP2E1, Lipoperoxidation and Pro-Inflammatory Cytokines in Semen of Asymptomatic Infertile Men

High-risk human papillomavirus (HR-HPV) infection, followed by chronic inflammation and oxidative stress, is a major risk factor of male infertility. In this study, we explored the potential impact of high-risk (HR) HPV genotypes in single infection (SI) and multiple infections (MI) that promote CYP2E1 expression, oxidative damage and pro-inflammatory cytokines, possibly contributing to sperm damage and male infertility. Semen samples from 101 infertile military men were studied. We analyzed seminal parameters, namely, HPV genotyping, cytochrome P450 2E1 (CYP2E1), oxidative stress biomarkers (total antioxidant capacity (TAC), catalase (CAT) and superoxide dismutase (SOD)), lipid peroxidation (LPO), 8-hydroxiguanosine (8-OHdG) and pro-inflammatory cytokines (IFN-γ, IL-1β, IL-4, IL-6 and IL-8). Eighty-one men (80.2%, 81/101) were positive for HPV infection, and MI-HR-HPV was higher than SI-HR-HPV (63% vs. 37%). HPV-52 was the most frequently detected type (18.5%), followed by HPV-33 (11.1%), and the most frequent combination of genotypes detected was HPV-33,52 (11.1%), followed by HPV-18,31 (6.2%). The group with infected samples presented lower normal morphology and antioxidant levels compared to non-infected samples. In concordance, the infected group showed high levels of LPO, IFN-γ, IL-1β, IL-4 and IL-6 and downregulation of CAT and SOD enzymes. Interestingly, changes in motility B, low levels of TAC, overexpression of CYP2E1, LPO and IL-8 levels were higher in MI-HR-HPV than SI-HR-HPV, suggesting that HPV infection promotes a chronic inflammatory process and a toxic and oxidative microenvironment, which increases with MI-HPV infections.
Adaptive Lane Change Trajectory Planning Scheme for Autonomous Vehicles Under Various Road Frictions and Vehicle Speeds

This paper proposes an adaptive lane change trajectory planning scheme to road friction and vehicle speed for autonomous driving, while considering both the maneuver safety and the comfort of occupants. In regard to achieve smooth trajectory, a 7th-order polynomial function is constructed to ensure continuity of the planned trajectory up to the derivative of the curvature (jerk). Unlike traditional planning methods that only consider very limited maneuvering conditions, the proposed scheme adapts to a wide range of road friction and vehicle speed, while ensuring enhanced occupants’ ride comfort and acceptance. The proposed trajectory planning scheme creatively integrates all the dynamic constraints which are defined by road friction, safety, comfort and human-like driving style. It is shown that the proposed lane change planning algorithm reduces to the identification of exclusively the lane change duration given a constant forward speed. Illustrative simulation examples in MATLAB/Simulink have been conducted to demonstrate the validity of the proposed scheme. The acceptable traceability of the planned lane change trajectories is further demonstrated through path tracking analysis of a full-vehicle model in CarSim. Finally, experimental tests have been conducted based on Quanser’s latest self-driving car (QCar) to verify the practical effectiveness of the proposed trajectory planning scheme.
Surface Chemical and Morphological Analysis of Chitosan/1,3-β-d-Glucan Polysaccharide Films Cross-Linked at 90 °C

The cross-linking temperature of polymers may affect the surface characteristics and molecular arrangement, which are responsible for their mechanical and physico-chemical properties. The aim of this research was to determine and explain in detail the mechanism of unit interlinkage of two-component chitosan/1,3-β-d-glucan matrices gelled at 90 °C. This required identifying functional groups interacting with each other and assessing surface topography providing material chemical composition. For this purpose, various spectroscopic and microscopic approaches, such as attenuated total reflection Fourier transform infrared spectroscopy (ATR FT-IR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), were applied. The results indicate the involvement mainly of the C-C and C-H groups and C=O⋯HN moieties in the process of biomaterial polymerization. Strong chemical interactions and ionocovalent bonds between the N-glucosamine moieties of chitosan and 1,3-β-d-glucan units were demonstrated, which was also reflected in the uniform surface of the sample without segregation. These unique properties, hybrid character and proper cell response may imply the potential application of studied biomaterial as biocompatible scaffolds used in regenerative medicine, especially in bone restoration and/or wound healing.
ENGLISH FOR SPECIFIC PURPOSES FOR ACCOUNTING STUDENTS

This research is aimed at improving teaching English materials for accounting program which is needed for the student of accounting at university level. The previous learning E,nglish material was using general English which was unmatched with the needs of the study program of accounting students. The research was conducted at a state university in Jambi Province with 46 students by giving the questionnaires which consists of two indicators. Target needs and learning needs questionnaires were constructed to find the needs of the students of the English teaching materials for accounting students. The findings revealed that the students of accounting program needs a specific material in learning English which has tight relationship with their study program. While English skills are need to be combined with the knowledge target of accounting, especially reading for enriching their vocabularies in accountancy. Writing is also needed to write some report and writing presentation papers.
Biological and medical physics, biomedical engineering

The ﬁelds of biological and medical physics and biomedical engineering are broad, multidisciplinary and dynamic. They lie at the crossroads of frontier research in physics, biology, chemistry, and medicine. The Biological and Medical Physics, Biomedical Engineering Series is intended to be comprehensive, covering a broad range of topics important to the study of the physical, chemical and biological sciences. Its goal is to provide scientists and engineers with textbooks, monographs, and reference works to address the growing need for information. Books in the series emphasize established and emergent areas of science including molecular, membrane, and mathematical biophysics; photosynthetic energy harvesting and conversion; information processing; physical principles of genetics; sensory communications; automata networks, neural networks, and cellu- lar automata. Equally important will be coverage of applied aspects of biological and medical physics and biomedical engineering such as molecular electronic components and devices, biosensors, medicine, imag-ing,physicalprinciplesofrenewableenergyproduction,advancedprostheses,andenvironmentalcontrolandengineering.
Time-Synchronized Control of Chaotic Systems in Secure Communication

High-quality data transmission synchronization process is frequently expected in light of secure communication mechanisms (SCMs), especially for space laser communication among the satellite constellation. To improve security and reliability during the data transmission processes prominently, control problems of chaotic synchronization synchronously at the same time are explored. In this paper, several novel error synchronization control protocols are proposed to solve these problems. First, by introducing a norm-normalized sign function (NNSF), unique (fixed-) time-synchronized stability is manifested, such that all non-zero state elements reach the origin synchronously at the same time. And upper bounds of synchronous resident time calculated by offered protocols are irrelevant/relevant to initial states of the error systems. Second, integrated with the (fixed-) time-synchronized stability theories, the (fixed-) time-synchronized sliding mode controllers with special convergent performance are established for two representative types of chaotic systems. Third, the ratio-persistent performance plays a dominating role for simultaneous convergence of the errors. Further, the innovation of the algorithms is reflected in that the decrypted signal is completely consistent with the transmitted message signal within synchronized settling time. Finally, in the simulation, not only theoretical verifications, but also practical verifications of image encryption and decryption processes verify the effectiveness of the SCMs.
Does the feeding frequency influence the growth performance of European perch juveniles (Perca fluviatilis) during intensive rearing?

The European perch (Perca fluviatilis) is a predatory fish species. Its aquaculture production is increasing worldwide. Feeding and the frequency of feeding are important elements of intensive fish rearing. The aim of our experiment was to examine the optimal distribution of the amount of feed, at the same feed rations. The experiment lasted 42 days. Three treatments were applied in 4–4 replications. The first treatment was feeding twice per day (T2), the second treatment was feeding three times a day (T3), and the third group was fed four times a day (T4). 10 European perch juveniles were stocked per tank, with an individual mean body weight of 3.93 ± 0.06 g at the start of the experiment. The survival rate (S%) was above 90% for all treatments. The T2 treatments produced the most favourable harvest weight (13.96 ± 0.14 g) and specific growth rate (SGR = 3.08 ± 0.01% day-1), but no significant differences were observed between groups. In terms of feed conversion ratio, the best result was obtained by (T3) (FCR =1.06 ± 0.18 g g-1), but no significant difference was found for this indicator neither. The results of the trial indicate that the feeding frequency does not influence the production parameters.
Heterosis and combining ability for related traits in tomato

Tomato (Solanum lycopersicum L.) yields have continued to plummet in Kenya due to biotic stresses and reliance on low yielding varieties. This study aimed at determining heterosis and combining ability for fruit yield and yield components among tomato genotypes and select F1 hybrids combining high fruit yield and other market demanded traits under Kenyan conditions. Ten parental genotypes and their 45 F1 hybrids were studied using 10×10 half diallel mating design, excluding the reciprocals and the self’s. The experiment was set up in Kiambu and Kirinyaga Counties in Kenya. Out of 45 F1 hybrids evaluated, 89% had reduced (negative heterosis) days to 50% flowering and 11% days to maturity, compared to their better parents. Higher heterosis (-9%) was recorded on days to flowering in AVTO1429 x Cal J VF) and -5% for maturity in Roma VF x AVTO1314. All the F1 hybrids had positive heterosis for number of trusses per plant and fruit yield. F1 hybrid AVTO1429 x AVTO1314 had the highest positive heterosis of 114.39% for fruit weight per plant yield. The results showed high significant difference among the ten genotypes for general and specific combining ability effects (male x female) for all the traits evaluated. There was additive and non-additive gene action for the traits, which are important aspects in developing a tomato breeding programme.
Extremes of Anemia: The Lowest Hemoglobin Values Probably Ever Reported in the Pediatric Literature Attributed to Iron Deficiency Anemia

Case series Patients: Male, 20-month-old • Female, 6-month-old Final Diagnosis: Iron deficiency anemia Symptoms: Pallor Medication: — Clinical Procedure: — Specialty: Pediatrics and Neonatology Objective: Unusual clinical course Background: Iron deficiency anemia is the most widespread, preventable, and treatable cause of anemia in children. Potential causes of iron deficiency anemia are prolonged breastfeeding with poor quality of introduced solid food and the use of whole cow milk instead of iron-rich formula. We describe 2 unusual cases of nutritional iron deficiency anemia with profound low level of hemoglobin around 1 g/dl, with similar diagnosis and different hospital course. Case Reports: First case: A 20-month-old Saudi boy presented with symptoms of acute gastroenteritis. He was noted to be very pale, with extremely low hemoglobin value of 1.1 g/dl. His nutritional status mostly consists of breast-feeding, with poor iron-rich food. He was admitted to the pediatric intensive care unit with a complicated hospital course of reversible cardiomyopathy and gut involvement. Second case: A 26-month-old Saudi girl presented with complaints of severe pallor and fatigability for 2 months, with critical result of extreme low level of hemoglobin 1.2 g/dl. A detailed nutritional history revealed being exclusively on pasteurized cow’s milk with no solid food intake for 6 months. Conclusions: Neglected cases of nutritional iron deficiency anemia may lead to profoundly low levels of hemoglobin. Possible manifestations include heart failure and gastrointestinal involvement in the form of leaky gut syndrome or exudative enteropathy. IV iron therapy was a very effective treatment in both patients. To our knowledge, probably no reported cases of severe iron deficiency anemia reaching this extremely low level of hemoglobin with multiple associated complications exist in the pediatric literature.
EVALUATION OF SOME PLANT EXTRACTS AGAINST THE TWO-SPOTTED SPIDER MITE Tetranychus urticae KOCH (Acari : Tetranychidae )

The efficiency of five plant water extracts namely Red pepper, Pomegranate, Lupine, Shihh and Garlic were studied against different stages of the phtyophagous mite Tetranychus urticae koch. Egg stage was more tolerant to all plant extracts than protonymph and adult female. The LC 50 values were 10.36, 9.38, 19.32, 23.95 and 52.45% for the egg stage compared with 1.16, 2.87, 5.87, 20.28 and 12.18% for the protonymph and 2.75, 4.82, 8.66, 3.53 and 15.45% for the adult female when treated by the mentioned plant extracts, respectively. The biological aspects of T. urticae were affected by treating eggs and adult female with LC 50 value of the five plant extracts. In egg treatment, hatchability was decreased while incubation period of eggs as well as life cycle were prolonged. After adult treatment, life cycle was prolonged and the female fecundity was decreased. The female longevity was shortened. Pomegranate was the most effective ovicide, while the Red pepper was the most effective extract against protonymph and adult female. A plastichouse experiment was conducted to evaluate the five plant extracts for control of the two-spotted spider mite T. urticae population. The percentages of reduction after 3,7,15 and 21 days from treatment with LC 25 , LC 50 and LC 90 were 48.7, 74.6 and 75.7% for Red pepper extract; 61.0, 64.5 and 42.2% for Pomegranate extract; 49.9, 62.8 and 64.7% for Lupine extract; 33.4 , 36.2 and 38.4% for Shihh extract; 38.6, 53.8 and 76.7 % for Garlic extract.
An Australian blue carbon method to estimate climate change mitigation benefits of coastal wetland restoration

Restoration of coastal wetlands has the potential to deliver both climate change mitigation, called blue carbon, and adaptation benefits to coastal communities, as well as supporting biodiversity and providing additional ecosystem services. Valuing carbon sequestration may incentivize restoration projects; however, it requires development of rigorous methods for quantifying blue carbon sequestered during coastal wetland restoration. We describe the development of a blue carbon accounting model (BlueCAM) used within the Tidal Restoration of Blue Carbon Ecosystems Methodology Determination 2022 of the Emissions Reduction Fund (ERF), which is Australia's voluntary carbon market scheme. The new BlueCAM uses Australian data to estimate abatement from carbon and greenhouse gas sources and sinks arising from coastal wetland restoration (via tidal restoration) and aligns with the Intergovernmental Panel for Climate Change guidelines for national greenhouse gas inventories. BlueCAM includes carbon sequestered in soils and biomass and avoided emissions from alternative land uses. A conservative modeled approach was used to provide estimates of abatement (as opposed to on‐ground measurements); and in doing so, this will reduce the costs associated with monitoring and verification for ERF projects and may increase participation in blue carbon projects by Australian landholders. BlueCAM encompasses multiple climate regions and plant communities and therefore may be useful to others outside Australia seeking to value blue carbon benefits from coastal wetland restoration.
Evaluation of fermented African mesquite seed (Prosopis africana) on growth and nutrient digestibility of Nile tilapia (Oreochromis niloticus) fingerlings

Production of cheap and quality dietary protein to replace the expensive conventional protein was studied in an 84-day feeding trial of Nile tilapia Oreochromis niloticus. African mesquite (Prosopis africana) seeds were subjected to fermentation processes and four iso-nitrogenous diets (35% crude protein) were formulated to contain graded levels of fermented African mesquite seed meal (FMS) to replace soybean meal (SBM) at four inclusion levels (0%, 15%, 30% and 45%) replicated in a completely randomised design. Proximate analysis showed increased in crude protein (35.10% to 41.29%), amino acids concentration, minerals content (calcium and phosphorus) while there were reductions in crude fibre (7.79% to 2.13%), crude lipids (4.02% to 2.67%) and anti-nutritional factors of FMS. The highest protein digestibility of 83.35% was recorded in FMS30 while FMS15 showed the least (77.07%). Carcass compositions were affected by diets composition. The minimum feeding cost of US$ 0.88 kg−1 was registered in FMS45 while FMS15 recorded the highest value of US$ 1.37 kg−1. In conclusion, 45% of FMS could replace SBM without compromising growth performance of Nile tilapia.