bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploring opportunism, conflict, noneconomic satisfaction and economic satisfaction in a B2B context – A buyer and seller perspective
Authors: Jyh-Liang Guan , Lee Tzong-Ru , Roberts-Lombard Mornay , Svensson Göran , Høgevold Nils
Published: September 2022

Purpose: The purpose of the study is to test the relationships between the antecedents of noneconomic satisfaction and its influence on economic satisfaction from both a seller’s and a purchaser’s perspective.Design/methodology/approach: Purchase and sales managers working for Taiwanese companies were included in the sample. Snowball sampling was applied and a total of 218 purchase managers and 208 sales managers participated in the study. Structural equation modelling was applied to the study.Findings: Opportunism was determined as an antecedent to conflict, while opportunism did not have a negative relationship with noneconomic satisfaction. Conflict was established as having a negative relationship with noneconomic satisfaction, which related positively to economic satisfaction in B2B relationships.Practical implications: The findings give purchase and sales managers insights that enable them to understand how opportunism relates to conflict, how these two antecedents relate to noneconomic satisfaction and how noneconomic satisfaction relates to economic satisfaction in purchase and sales business relationships. The tested model validates the hypothesised relationships between opportunism and conflict, conflict and noneconomic satisfaction, and noneconomic satisfaction and economic satisfaction from both a purchaser’s and a seller’s perspective. However, the negative relationship between opportunism and noneconomic satisfaction in purchaser–seller relationships could not be confirmed.Originality/value: No existing study has focused on relationship marketing in business-to-business relationships from both a purchaser’s and a seller’s perspective to establish whether noneconomic satisfaction functions as a connector between economic satisfaction and opportunism and conflict.
Early Childhood Care and Education teachers’ experiences of integrating the activities of the national curriculum framework into themes
Authors: Zama Cynthia Z. , Mashiya Nontokozo
Published: September 2022

Background: Integrating teaching and learning activities around the selected themes was acknowledged as an effective way to manage learning in the Early Childhood Care and Education (ECCE) sector. It was also ensured for the desired results and highest opportunity to prepare young children for school readiness in the South African National Curriculum Framework (NCF).Aim: The aim of this study was to explore ECCE teachers’ experiences of integrating activities from the six early learning developmental areas (ELDAs) of the NCF into the selected themes.Setting: This interpretive case study was conducted with six purposively selected ECCE teachers from three centres that followed the guidelines of the NCF for the development of young children in the Umbumbulu rural area in KwaZulu–Natal province.Methods: The study was framed within the transformative learning theory and qualitative data were generated using semi-structured interviews and document analysis that were inductively analysed using the data analysis spiral.Results: The findings show integration as a collaborative venture for teachers to interpret the NCF, select themes, and identify and integrate activities from the six ELDAs when planning lessons. Natural, indigenous themes and man-made resources were used to overcome the shortage of teaching resources. Challenges occurred from the lack of play resources and the support from department officials.Conclusion: This study recommends more teamwork for ECCE teachers to understand the objectives of the NCF for purposeful planning to meet young children’s learning needs and school preparedness in the ECCE sector. Further research is recommended in the ECCE sector.
Nutrition knowledge competencies of intermediate and senior phase educators in Limpopo Province
Authors: Mbhenyane Xikombiso G. , Magoai Matlou M. , Mabapa Ngoako S. , Tambe Ayuk B.
Published: September 2022

Background: Children’s food preferences and willingness to try new foods are influenced by the people around them, including families and teachers. The eating behaviours children practise early in life may continue to shape their food attitudes and eating patterns through adulthood.Aim: The purpose of this study was to explore the nutrition knowledge competencies of educators in primary schools.Setting: This study was conducted in Makhuduthamaga local municipality, Limpopo Province, South Africa.Methods: This study adopted a quantitative, descriptive and exploratory research design. A simple random sampling technique was used to select 30 primary schools and purposively select 200 educators responsible for Grades 5–7. The data were analysed using the Statistical Package for Social Science (SPSS), version 21.Results: Of the 200 educators, 66.5% were women and 34% were trained at a college and had teaching experience of between 21 and 30 years. Most of the educators knew the importance of carbohydrates, fat, vegetables and fruits. Only a quarter (26%) of educators knew the importance of protein, although 75.5% knew that protein forms part of a balanced diet. The overall knowledge score revealed that 92% of the educators had a poor knowledge score. There was no significant difference among selected socio-demographic characteristics, such as level of education (p = 0.129), training institution (p = 0.534) and nutrition knowledge (p 0.05).Conclusion: The overall nutrition knowledge of educators was poor, with about half of the educators reporting that their training was the main determinant of their nutrition knowledge. Therefore, there is a need for the incorporation of nutrition content into the training curriculum of educators.
Leadership talent mindset as a catalyst for talent management and talent retention: The case of a Botswana local government institution
Authors: Barkhuizen Emmerentia N. , Masale Refilwe L.
Published: September 2022

Orientation: Talented employees play an essential role in the service performance of local government institutions. Unfortunately, talent management remains a neglected practice within the local government, mainly because of the absence of leadership talent mindsets.Research purpose: The main focus of this research study was to determine how leadership talent mindset influences talent management and voluntary turnover intentions of employees in a Botswana local government institution.Motivation for the study: Research on the predictive relationships between leadership talent mindset, talent management and voluntary turnover intentions is yet forthcoming in the Botswana context.Research approach/design and method: The researchers followed a quantitative research approach. Data were collected from a stratified random sample of employees (N = 405) from a Botswana local government institution. A leadership talent mindset scale, talent management measurements and voluntary turnover intentions questionnaire were administered.Main findings: The results showed a weak leadership talent mindset towards talent management. A leadership talent mindset significantly predicted poor talent management practices and voluntary turnover intentions. Talent development moderated the relationship between the leadership talent mindset and voluntary turnover intentions.Practical/managerial implications: Leaders need to adopt the appropriate talent mindsets to implement those talent management practices that will retain key and competent talent in local government institutions.Contribution/value-add: This research study advances empirical knowledge on the importance of leadership in facilitating effective talent management in local government.
A talent management, organisational commitment and employee turnover intention framework for a government department in South Africa
Authors: Mokoena Wasnaar , Schultz Cecilia M. , Paul Dachapalli Leigh-Anne
Published: September 2022

Orientation: Talent management should be used as a strategy to improve organisational commitment and reduce employee turnover intention.Research purpose: The purpose of this research was to develop a talent management, organisational commitment and employee turnover intention framework for a government department in South Africa by determining the relationship between these three variables.Motivation of the study: Most studies focus on talent management and organisational commitment in the private sector, with limited studies conducted on the development of a talent management, organisational commitment and employee turnover intention framework for a government department in South Africa.Research approach/design method: A survey was conducted by using a non-probability sample of 372. A quantitative research approach was used. Data were collected manually by using a questionnaire. Structural equation modelling was used to analyse the data.Main findings: The results of the study showed that talent management acted as a mediator between organisational commitment and employee turnover intention. There was a significant relationship between talent management, organisational commitment and employee turnover intention.Practical/managerial implications: Talent management should form part of a strategic approach to attract and retain talent in the department. Talent management as the mediator explains the causal links between organisational commitment and employee turnover intention.Contribution and value addition: The new knowledge was produced by the development of a framework for talent management, organisational commitment and employee turnover intention at a government department in South Africa.
Virtual-reality headset mounted smartphone-based Indentation fundus videography
Authors: Singh Deependra Vikram , Gaur Sandhya , Reddy Raja Rami , Sharma Ajay , Sharma Yog Raj
Published: September 2022

To describe a simple and novel technique that overcomes the limitation of smartphone-based fundus photography and allows examiners to capture peripheral retinal images with indentation. Smartphone with video camera in flash-on mode was mounted on virtual-reality (VR) headset. This was combined with +28D lens and +20D lens and soft cotton bud to capture high-quality videos of peripheral fundus with indentation. Autofocus function of the camera and examiner's head movements to adjust the distance was used to obtain retinal video. The procedure is akin to indirect ophthalmoscopy. The feasibility of obtaining well-focused retinal images during indentation was checked. We could obtain good quality videos demonstrating indentation of the peripheral fundus in 10 eyes showing different pathologies such as laser marks, lattice degeneration, and pigmented lesions. VR headset-mounted smartphone-based indentation fundus videography is an innovative cost-effective technique to capture peripheral retinal images. The technique can be useful for documenting retinopathy of prematurity lesions and other situations where widefield photography is not possible.
Evaluation of the Effects of Noninvasive Ventilation on Blood Gas and Depression Levels of Patients with Obesity Hypoventilation Syndrome
Authors: Nayebi Atena , Naderi Zohre , Sami Ramin , Hashemi Minou , Aalipoor Zahra , Amra Babak
Published: September 2022

Background:

Obesity hypoventilation syndrome (OHS) is associated with increased mechanical load on respiratory system. Here, we aimed to investigate and evaluate the effects of noninvasive ventilation (NIV) on physical and mental status of patients with OHS.

Materials and Methods:

The current study is an observational study that was performed in 2020 on 50 patients with OHS in Isfahan, Iran. Beck's Depression Inventory (BDI-II) and Hospital Anxiety and Depression Scale (HADS) questionnaires were also filled for all patients assessing their depression levels that were confirmed by psychiatrists. PO2 and PCO2 of patients were evaluated using venous blood gas (VBG) before interventions. Patients with a definite diagnosis of OHS and depression entered the study and underwent treatments with NIV. One month after the interventions with NIV, the blood gases of patients were evaluated using VBG and BDI-II, and HADS questionnaires were also filled for all patients, evaluating their depression.

Results:

The mean age of the subjects was 63.5 ± 13.5. The mean blood oxygen after the use of NIV in patients with OHS increased significantly (P = 0.001). The mean of carbon dioxide after using NIV in patients with OHS decreased significantly (P = 0.001). Based on the BDI-II and HADS scales, the mean score of depression after using NIV decreased significantly (P = 0.001 for both).

Conclusion:

NIV therapies are associated with improvements in blood oxygen and CO2 of patients with OHS. The levels of depression also decreased after treatments that were confirmed by psychiatrists.
Perivascular Epithelioid Cell Tumor of the Falciform Ligament with Recruitment of the Paraumbilical Vein
Authors: Salamo Russell M. , Fong Tse-Ling , Patel Dakshesh , Silva Jack P. , Chopra Shefali , Kulkarni Sujit , Tseng William W. , Grant Edward G.
Published: September 2022

We report a case of a perivascular epithelioid cell tumor occurring in the falciform ligament of an otherwise healthy 32-year-old woman. The mass was hypervascular with central necrosis on computed tomography (CT) and contrast-enhanced ultrasound. Our case is unique as CT and ultrasound revealed a paraumbilical vein arising from the expected location in the fissure for the falciform ligament and terminating in the superior aspect of the mass. The vascular anatomy of a recanalized paraumbilical vein, typically associated with portal hypertension, was complete with drainage of blood from the inferior aspect of the mass through the inferior epigastric veins to the femoral veins. The patient had no evidence of liver disease or portal hypertension.
Chlorhexidine and SARS-CoV-2 main protease
Authors: Grover Vishakha , Kumar Varinder , Puri Veena , Jain Ashish
Published: September 2022

As the beginning of the COVID-19 pandemic, numerous attempts have been made to identify specific antiviral mouth rinses which may help reduce the salivary viral load of severe acute respiratory syndrome coronavirus 2 (SARS-CoV2). Although the results from in vivo well-controlled clinical studies are yet pending, many contemporary antimicrobial mouth rinses have been explored for potential antiviral properties with respect to SARS-CoV-2. The most widely used compounds such as povidone-iodine, chlorhexidine, hydrogen peroxide, and essential oils have been known to have antiviral activity by targeting the outer lipid membrane or by denaturing the capsid proteins of enveloped virus SARS-CoV. Until now, there has been scanty scientific evidence on the molecular basis of interaction of the gold standard antimicrobial mouth rinse as an underlying mechanism of its anti-SARS-CoV-2 effect. The current communication reports the findings of our in silico docking study pertaining to understand the interactions of chlorhexidine with the most well-studied target of the SARS-CoV main protease.
Clinical and histological evaluation of concentrated growth factor membrane bandage after gingival depigmentation
Authors: Shetty Gaurav Prabhakar , Lakade Chaitrali Hanumantrao , Mitra Dipika Kalyan , Rodrigues Silvia Victor
Published: September 2022

Concentrated growth factor (CGF) is a newer form of autologous platelet concentrate with an extra fibrin matrix and more growth factors than that observed with platelet-rich fibrin, due to its different centrifugation process. This case series evaluates the early wound healing with CGF membrane as a periodontal bandage after depigmentation. Three individuals were selected for a split-mouth study. After surgical depigmentation, the test site received CGF membrane. Both groups were covered by a periodontal pack. Participants were assessed on the 3rd and 5th days using a Visual Analog Scale and a Healing Index. Epithelization test was done with toluidine blue on the 5th day and tissue samples were taken for histological evaluation. The application of CGF membrane showed better healing and lesser inflammatory cells. Thus, a CGF membrane is helpful in protecting the raw wound region of depigmented sites, improving patient comfort, and for better healing.
“Once a Smoker, Always a Smoker: Primary Care Physicians” Views on Integrating Smoking Cessation with Antitubercular Treatment in Primary Health Centers – A Qualitative Study
Authors: Purushothama Jagannath , Badiger Sanjeev B , Kumar Nanjesh , Baikunje Nandakishore , D’Souza Neevan , Olickal Jeby Jose , Dmello Mackwin Kenwood
Published: September 2022

Although smoking and tuberculosis (TB) pose a health threat in low- and middle-income countries, they are less recognized as public health problems. Lack of awareness among smokers about smoking cessation services and health-care professionals not viewing apparently – healthy smokers as the candidates for smoking cessation treatment are some of the significant barriers. This qualitative study explores the opinions and views of primary care physicians (PCPs) on integrating smoking cessation programs with the ongoing antitubercular treatment in primary health-care settings of India. The study employs a deductive qualitative design using a purposive sampling method to recruit physicians to implement the Directly Observed Treatment Short Course for TB patients in primary health-care settings. A semi-structured, open-ended questionnaire was developed based on the Consolidated Framework for Implementation Research to conduct in-depth interviews of eight PCPs. Although smoking cessation intervention is noticeable in the primary health centers, lack of uniformity in service deliverables, nonusage of nicotine replacement therapy, shortage of human resources, and meager readiness of the patients to quit smoking are a few encounters. PCPs advocate early identification of smokers, delegation of responsibilities to grassroots level health-care workers, and collaboration with the nongovernmental organizations and private sector.
Total Contact Casting
Authors: Chemboli Manikumar Jogarao , Rao R Balaji , Pathri Sivananda , Pathri Chandana , Paka Varun Kumar
Published: September 2022

Background:

Neuropathic ulcers affect a patient's ambulation and are the leading cause of nontraumatic amputations. Offloading (reduction of pressure) is the key to success in managing these ulcers. Total contact casting (TCC) is considered as the gold standard of treatment for managing neuropathic foot ulcers (NFU). However, this method is less frequently used in the present-day ulcer management due to the lack of skill and laborious nature of work involved.

Aim:

This study aims to explore the merits and demerits of this technique and understand its relevance in modern times in managing NFUs.

Patients and Methods:

A total of 24 patients with NFU of different etiologies presented to outpatient unit between August 2018 and August 2020 were included in this prospective case series. All the patients were treated with TCCs applied at weekly intervals, until the ulcer healed completely.

Results:

Primary outcomes measured were number of casts required which reflected the time of healing in weeks. The mean number of castings required for each centimeter of ulcer healing was 2.310 cast time duration with a 91.66% percentage of success rate. Ulcers in all the patients healed on or before 16 weeks with a mean duration of healing of 58 days after commencement of treatment.

Conclusion:

It offers attractive healing rates in the management of NFUs and is associated with fewer manageable low-risk complications. Surgeons should incorporate this casting method as part of standard care of NFU to produce early healing and avoid major complications secondary to poor wound healing.
Moduli of Stokes torsors and singularities of differential equations
Authors: Teyssier Jean-Baptiste
Published: September 2022

Let

\mathcal{M}

be a meromorphic connection with poles along a smooth divisor

D

in a smooth algebraic variety. Let

\operatorname{Sol} \mathcal{M}

be the solution complex of

\mathcal{M}

. We prove that the good formal structure locus of

\mathcal{M}

coincides with the locus where the restrictions to

D

of

\operatorname{Sol} \mathcal{M}

and

\operatorname{Sol} \operatorname{End}\mathcal{M}

are local systems. Despite the very different natures of these loci (the first one is defined via algebra, and the second via analysis), the proof of their coincidence is geometric. It relies on moduli of Stokes torsors.
Extension theorem and representation formula in non-axially-symmetric domains for slice regular functions
Authors: Dou Xinyuan , Ren Guangbin , Sabadini Irene
Published: September 2022

Slice analysis is a generalization of the theory of holomorphic functions of one complex variable to quaternions. Among the new phenomena which appear in this context, there is the fact that the convergence domain of

f(q)=\sum_{n\in\mathbb{N}}(q-p)^{*n} a_n

, given by a

\sigma

-ball

\Sigma(p,r)

, is not open in

\mathbb{H}

unless

p\in\mathbb{R}

. This motivates us to investigate, in this article, what is a natural topology for slice regular functions. It turns out that the natural topology is the so-called slice topology, which is different from the Euclidean topology and nicely adapts to the slice structure of quaternions. We extend the function theory of slice regular functions to any domains in the slice topology. Many fundamental results in the classical slice analysis for axially symmetric domains fail in our general setting. We can even construct a counterexample to show that a slice regular function in a domain cannot be extended to an axially symmetric domain. In order to provide positive results we need to consider so-called path-slice functions instead of slice functions. Along these lines, we can establish an extension theorem and a representation formula in a slice domain.
Convergence in Wasserstein distance for empirical measures of Dirichlet diffusion processes on manifolds
Authors: Wang Feng-Yu
Published: September 2022

Let

M

be a

d

-dimensional connected compact Riemannian manifold with boundary

\partial M

, let

V\in C^2(M)

be such that

\mu({\rm d} x):={\rm e}^{V(x)}{\rm d} x

is a probability measure, and let

X_t

be the diffusion process generated by

L:=\Delta+\nabla V

with

\tau:=\inf\,\{t\ge 0: X_t\in\partial M\}

. Consider the empirical measure

\mu_t:=\frac 1 t \int_0^t \delta_{X_s}\,{\rm d} s

under the condition

t<\tau

for the diffusion process. If

d\le 3

, then for any initial distribution not fully supported on

\partial M

,

\begin{align*} c\sum_{m=1}^\infty \frac{2}{(\lambda_m-\lambda_0)^2} &\le \liminf_{t\to \infty} \inf_{T\ge t} t {\mathbb E}[\mathbb W_2(\mu_t, \mu_0)^2\,|\,T<\tau] \\ &\le \limsup_{t\to \infty} \sup_{T\ge t} \, t \mathbb E\big[\mathbb W_2(\mu_t, \mu_0)^2\,|\,T<\tau] \le \sum_{m=1}^\infty \frac{2}{(\lambda_m-\lambda_0)^2}\end{align*}

holds for some constant

c\in (0,1]

with

c=1

when

\partial M

is convex, where

\mu_0:= \phi_0^2\mu

for the first Dirichet eigenfunction

\phi_0

of

L

,

\{\lambda_m\}_{m\ge 0}

are the Dirichlet eigenvalues of

-L

listed in increasing order counting multiplicities, and the upper bound is finite if and only if

d\le 3

. When

d=4

,

\sup_{T\ge t} \mathbb E[\mathbb W_2(\mu_t, \mu_0)^2\,|\,T<\tau]

decays on the order of

t^{-1}\log t

, while for

d\ge 5

it behaves like

t^{- 2 /({d-2})}

, as

t\to\infty

.
Determinant factors of resource conflict between farmers and herdsmen in benue state, nigeria.
Authors: Abugu Nkechinyere Anthonia,  , Odele Muyiwa Oliatan,  , Aliyu Haruna Awaisu,  , Yero Ahmed Bello,
Published: September 2022

The determinant factors of resource conflict between farmers and herdsmen in Benue State were analysed. Objectives were to assess the prevalence of resource conflict factors in Benue state and determine factors most responsible for the resource conflict in Benue state. Field survey of three hundred and eighty-two (382) residents was conducted using questionnaire, interview and focus group discussion. Data collected were analyzed using percentage and Factor Analysis. Results showed that factors such as drought, flood, erosion, pollution, politics, greed, proliferation of arms, religion, tribalism, expansion of farmland, increases in herds, poverty, unemployment, cattle rustling, destruction of crops by herds, population growth and urbanization are responsible for the conflict. However, further, analysis of result shows that only 1.38% of respondents posited that environmental/climatic factors, 30% economic factors, 32.78% greed/insecurity, 13.75% and 22.08% posited cultural and population factors respectively. It was concluded that human factors such as economic, greed/insecurity, cultural and population are the major drivers of the resource conflict between farmers and herdsmen than environmental factors like erosion, flood and draught. promote skill acquisition and create jobs to engage youths to boast the economy and reduce conflict.
Influence of rural women’s time allocation on their wealth statuses in busega district, tanzania
Authors: Deborah Andrew Ngusa,
Published: September 2022

The study examined time allocation per day among household chores versus income generation activities that influence wealth statuses of rural women in Busega District, Tanzania. Cross-sectional research design was adopted to conduct the study. The methods applied for data collection include household survey, focus group discussions, non-participant observations and documentary reviews. Qualitative data were analysed through content analysis. Quantitative data were analysed through cross-tabulation and Principal Component Analysis (PCA). The results show that, the means of hours used by rural women in conducting each activity per day were lopsided on household chores. The average time shows that each rural woman used approximately 6 hours for conducting household chores and at least two hours for income generation activities per day. Furthermore, the wealth statuses were established by computing Principal Component Analysis as it was revealed that the majority 62.9% (132) of the rural women were poor having low incomes. The tercile classification took account for below TZS 200,000 indicating poor, TZS 200,001 to 600,000 for middle and TZS 600,001 and above for better-off as higher income. The study concludes that rural women’s income growth has been hampered by the burden of household chores because they were limited to participate effectively in productive activities. The paper recommends that, the government through the Ministry of Community Development, Gender and Special Groups experts should foster interventions that are grounded on increasing rural women’s participation in income generation activities
The effect of surface plasmonic resonances on magneto-plasmonic spherical core-shell nanocomposites
Authors: Yeneayehu Kinde , Senbeta Teshome , Mesfin Belayneh
Published: September 2022

In this study, the effect of plasmon resonance on magneto-plasmonic  spherical core-shell nanocomposite enclosed in a dielectric host medium is theoretically investigated by applying electrostatic approximation (esa) and Maxwell-Garnet effective medium theories to obtain magneto-optical parameters such as; effective electric permittivity and magnetic permeability as well as the corresponding extinction cross-sections. Likewise, for a fixed size of QDs (of radius  nm) numerical analysis was performed to determine the plasmonic resonance effect by varying the parameters such as the metal fraction (β) and the dielectrics (εh) of the host medium on the magneto-plasmonic nanostructures (nss). The results depict that graphs of absorption, scattering, and extinction cross-sections as a function of wavelength have two positions of resonance peaks. The first set of peaks are in the ultraviolet (uv) and the second located in visible regions. These peaks originated from the strong coupling between a regular periodic vibrations of surface plasmons of silver (Ag) with the excitonic state of the dielectric/semiconductor at the internal ( ) and external (Ag/host) interfaces. As β increases, the absorption and scattering cross-sections are blue-shifted in the first peak and red shifted the second set of peaks. Similarly, as εh increases or as β decreases, the sets of resonance peaks for extinction cross-section gets enhanced; while keeping one of these parametric quantities fixed at once. The resulting surface plasmon resonance effect might be utilized in a variety of applications that combines both the plasmonic and magnetic core-shell nanostructures ranging from UV to Visible spectral regions.
Prácticas de gestión de seguridad y salud en el trabajo: Una revisión sistemática de la literatura
Authors: Moran-Fuentes Jose Juan , Carlos-Ornelas Carmen Estela , Soto-Morones Humberto
Published: September 2022

Las Prácticas de Gestión de Seguridad y Salud en el Trabajo (PGSST) han sido un parteaguas en la prevención de riesgos y enfermedades laborales, ya que mediante la implementación de estas en los centros de trabajo es posible reducir los índices de accidentes en las organizaciones. Por tal razón, el objetivo de este trabajo fue la identificación de las PGSST clave por su relevancia en la literatura internacional, para lo cual se realizó una búsqueda de literatura en fuentes documentales como Science Direct, Hindawi Publishing Corporation, Emerald, Multidisciplinary Digital Publishing (MDPI), la American Society of Civil Engineers (ASCE), European Proceedings of Social & Behavioural Sciences y African Journals Online, entre otras. El análisis realizado se reporta en una matriz resumen y una gráfica que registran nueve PGSST claves identificadas con base en la frecuencia de su presencia en la literatura revisada: la capacitación; compromiso de gestión y dirección; la comunicación y retroalimentación; la participación de los trabajadores; la política de seguridad; los procedimientos de trabajo seguro, la promoción de seguridad; la evaluación de riesgos; y la planificación de seguridad.
Sex-based de novo transcriptome assemblies of the parasitoid wasp Encarsia suzannae, a host of the manipulative heritable symbiont Cardinium hertigii
Authors: Schultz Dylan L. , Selberherr Evelyne , Stouthamer Corinne M. , Doremus Matthew R. , Kelly Suzanne E. , Hunter Martha S. , Schmitz-Esser Stephan
Published: September 2022

Parasitoid wasps in the genus Encarsia are commonly used as biological pest control agents of whiteflies and armored scale insects in greenhouses or the field. They are also hosts of the bacterial endosymbiont Cardinium hertigii, which can cause reproductive manipulation phenotypes, including parthenogenesis, feminization, and cytoplasmic incompatibility (the last is mainly studied in Encarsia suzannae). Despite their biological and economic importance, there are no published Encarsia genomes and only one public transcriptome. Here, we applied a mapping-and-removal approach to eliminate known contaminants from previously-obtained Illumina sequencing data. We generated de novo transcriptome assemblies for both female and male E. suzannae which contain 45,986 and 54,762 final coding sequences, respectively. Benchmarking Single-Copy Orthologs results indicate both assemblies are highly complete. Preliminary analyses revealed the presence of homologs of sex-determination genes characterized in other insects and putative venom proteins. Our male and female transcriptomes will be valuable tools to better understand the biology of Encarsia and their evolutionary relatives, particularly in studies involving insects of only one sex.
Bitslicing Arithmetic/Boolean Masking Conversions for Fun and Profit
Authors: Bronchain Olivier , Cassiers Gaëtan
Published: September 2022

The performance of higher-order masked implementations of lattice-based based key encapsulation mechanisms (KEM) is currently limited by the costly conversions between arithmetic and Boolean masking. While bitslicing has been shown to strongly speed up masked implementations of symmetric primitives, its use in arithmetic-to-Boolean and Boolean-to-arithmetic masking conversion gadgets has never been thoroughly investigated. In this paper, we first show that bitslicing can indeed accelerate existing conversion gadgets. We then optimize these gadgets, exploiting the degrees of freedom offered by bitsliced implementations. As a result, we introduce new arbitrary-order Boolean masked addition, arithmetic-to-Boolean and Boolean-to-arithmetic masking conversion gadgets, each in two variants: modulo 2k and modulo p (for any integers k and p). Practically, our new gadgets achieve a speedup of up to 25x over the state of the art. Turning to the KEM application, we develop the first open-source embedded (Cortex-M4) implementations of Kyber768 and Saber masked at arbitrary order. The implementations based on the new bitsliced gadgets achieve a speedup of 1.8x for Kyber and 3x for Saber, compared to the implementation based on state-of-the-art gadgets. The bottleneck of the bitslice implementations is the masked Keccak-f[1600] permutation.
Roulette: A Diverse Family of Feasible Fault Attacks on Masked Kyber
Authors: Delvaux Jeroen
Published: September 2022

At Indocrypt 2021, Hermelink, Pessl, and Pöppelmann presented a fault attack against Kyber in which a system of linear inequalities over the private key is generated and solved. The attack requires a laser and is, understandably, demonstrated with simulations—not actual equipment. We facilitate and diversify the attack in four ways, thereby admitting cheaper and more forgiving fault-injection setups. Firstly, the attack surface is enlarged: originally, the two input operands of the ciphertext comparison are covered, and we additionally cover re-encryption modules such as binomial sampling and butterflies in the last layer of the inverse numbertheoretic transform (INTT). This extra surface also allows an attacker to bypass the custom countermeasure that was proposed in the Indocrypt paper. Secondly, the fault model is relaxed: originally, precise bit flips are required, and we additionally support set-to-0 faults, random faults, arbitrary bit flips, and instruction skips. Thirdly, masking and blinding methods that randomize intermediate variables kindly help our attack, whereas the IndoCrypt attack is like most other fault attacks either hindered or unaltered by countermeasures against passive side-channel analysis (SCA). Randomization helps because we randomly fault intermediate prime-field elements until a desired set of values is hit. If these prime-field elements are represented on a circle, which is a common visualization, our attack is analogous to spinning a roulette wheel until the ball lands in a desired set of pockets. Hence, the nickname. Fourthly, we accelerate and improve the error tolerance of solving the system of linear inequalities: run times of roughly 100 minutes are reduced to roughly one minute, and inequality error rates of roughly 1% are relaxed to roughly 25%. Benefiting from the four advances above, we use a reasonably priced ChipWhisperer® board to break a masked implementation of Kyber running on an ARM Cortex-M4 through clock glitching.
Experimental Analysis of Low-Light Image Enhancement Techniques: A Review
Authors: Shaheen Naazaan , Singh Yogendra
Published: September 2022

Images acquired in low-light situations generally suffer from subjective visual effects on human eyes and the performance of different machine vision systems due to low brightness, low contrast, a limited gray range, color distortion, and high noise. Enhancing photographs taken in low light is done so that they may be used in other applications more effectively. In this study, we look back at some of the most important methods for improving images in dim light. We categorize these techniques into seven distinct groups: gray transformation, histogram equalization, Retinex, frequency-domain, picture fusion, defogging model, and machine learning. Methods are presented across the board, from the broadest to the most specific categories, emphasizing the underlying concepts and distinguishing features. Different improved picture quality assessment techniques are also described, as are comparisons of the various algorithms used. Finally, a state-of-the-art summary and recommendations for where the field should go are presented.
Knowledge, Policy and Power in International Development
Authors: Jones Harry , Jones Nicola A. , Shaxson Louise , Walker David
Published: September 2022

This book presents an academically rigorous yet practical guide to efforts to understand how knowledge, policy and power interact to promote or prevent change.
Health and Care in Ageing Societies
Authors: Lloyd Liz
Published: September 2022

In the context of global ageing societies, there are few challenges to the underlying assumption that policies should promote functional health and independence in older people and contain the costs of care. This important book provides such a challenge.
Collaboration in Public Policy and Practice
Authors: Williams Paul
Published: September 2022

Collaborative working explores the influence of agency through the role of individual actors in collaborative working processes, known as boundary spanners.
Cities for a Small Continent
Authors: Power Anne
Published: September 2022

Through varied case studies, this original book compares changes between Northern and Southern European countries, and bigger and smaller cities, over ten years to present a compelling framework showing how Europe’s post-industrial cities are striving to combat environmental and social unravelling.
Phoenix Cities
Authors: Power Anne , Plöger Jörg , Winkler Astrid
Published: September 2022

This book explores economic, social and environmental transformations in Europe and the USA to inform the regeneration of 'weak market cities'.
Transitions and the Lifecourse
Authors: Grenier Amanda
Published: September 2022

This book offers a unique perspective on ideas about late life as expressed in social policy and socio-cultural constructs of age with lived experience.
Oral presentation as authentic material for providing ESP instruction
Authors:   University of Kragujevac, Faculty of Technical Sciences, Serbia, Petrović Vesna , Radović Firat Ana ,   University of Kragujevac, Faculty of Technical Sciences, Serbia, Palurović Lidija ,   University of Kragujevac, Faculty of Technical Sciences, Serbia
Published: September 2022

The paper investigates some perspectives of oral presentation as an authentic task for providing instruction to students who create their own presentations on a specified topic. For that purpose, undergraduate students who attend ESP courses were exposed to oral presentations prepared by their colleagues in order to be instructed on how to prepare their own presentations. Upon the task completion, a survey was conducted to collect the students’ opinions on the impact of the instruction that contains authentic material on their preparation strategies, self-regulation and self-evaluation in the process of fulfilling the task. The results show that oral presentation used as authentic material for ESP instruction positively affect the strategies and activities that students use during the preparation for the task completion. It also promotes students’ self-regulation and self-evaluation within the same process
Digital Resilience and Psychological Wellbeing of Italian Higher Education Students: An Exploratory Study
Authors:   University of Foggia, Learning Science Hub, Department of Human Sciences, Italy, Ragni Benedetta , Guarini Piergiorgio ,   University of Foggia, Learning Science Hub, Department of Human Sciences, Italy, Toto Giusi Antonia ,   University of Foggia, Learning Science Hub, Department of Human Sciences, Italy, Limone Pierpaolo ,   University of Foggia, Learning Science Hub, Department of Human Sciences, Italy
Published: September 2022

Covid-19 pandemic has increased the use of technology in the educational field. While previous literature has demonstrated the benefits of using technology in educational environments, the risks related to problematic digital behaviors have been less investigated. Digital resilience represents a protective factor for students’ learning outcomes and emotional wellbeing. The main aim of this study was to explore Italian university students’ digital resilience levels and their psychological wellbeing in terms of stress and psychological resilience. 94 students (F=57.4%) aged 19-57 (M=31.11, SD=9.04) completed an ad-hoc questionnaire on digital resilience which included the Perceived Stress Scale, the KOP-26, and the Brief Resilience Scale. Descriptive statistics, item analysis, and bivariate correlations were performed. Results showed that Italian students reported higher levels of stress (M=21.53, SD=6.92) than the Italian normative sample. In addition to this, they perceived good levels of both psychological and digital resilience: they reported being aware of potential strategies for preparing for and responding to cyber threats and how to face negative online experiences. These results could usefully inform interventions aimed at helping them to recognize and manage risks and threats when online
Inovativni pristupi nastavi matematike primenom znanja stečenih u okviru informatike i računarstva
Authors:   OŠ „20.oktobar“, Vrbas, Srbija, Apelić Bojana , Božović Ana ,   OŠ „20.oktobar“, Vrbas, Srbija
Published: September 2022

Kontinuirani progres u oblasti informacionih i komunikacionih tehnologija (IKT), ima neminovan uticaj na sve sfere života, pa samim tim i na nastavni proces. Sadržaji sa kojima se učenici upoznaju u okviru informatike i računarstva mogu se primeniti u gotovo svim nastavnim predmetima. Njihova primena umatematici ima višestruki pozitivan uticaj kako na motivaciju učenika, povećanje efikasnosti nastavnogprocesa, racionalno korišćenje vremena na časovima, razvoj opštih međupredmetnih kompetencija, kao iključnih kompetencija za celoživotno učenje. U cilju isticanja veze između nastavnih predmeta iosposobljavanja učenika da primenjuju stečena znanja na konkretnim primerima, predmetni nastavnicičesto osmišljavaju zajedničke časove ili projekte. U radu su prikazani neke od uspešno realizovanihaktivnosti koje predstavljaju korelaciju tri nastavna predmeta: informatike i računarstva, tehnike itehnologije i matematike.
Nastava programiranja u oblaku: paradigma novog doba
Authors:   University of Kragujevac, Faculty of Technical Sciences, Serbia, Papić Miloš , Čukljević Dalibor ,   OŠ Dr Dragiša Mišović, Čačak, Serbia, Luković Zoran ,   OŠ Dr Dragiša Mišović, Čačak, Serbia
Published: September 2022

U radu su prikazani veb-bazirani servisi i alati koji se koriste u programerskoj praksi a mogu ih koristiti nastavnici i učenici prilikom savladavanja gradiva koje se odnosi na programiranje a predviđeno je programima nastave i učenja za predmet Informatika i računarstvo u osmom razredu osnovne škole, odnosno Računarstvo i informatika u drugoj godini gimnazije. Rad ima za cilj da uputi nastavnike u postojanje datih alata i popularizuje njihovu upotrebu i prelazak na novi koncept nastave kada je reč o programiranju, shodno prednostima koje dati alati imaju u odnosu na svoje desktop verzije sa kojima su nastavnici upoznati kroz udžbenike svih izdavačkih kuća dostupne na domaćem tržištu.
Propuesta de mejora en el área de logística sobre los costos operativos de Bermanlab S.A.C Trujillo, 2020
Authors: Angulo-Noel Brenda Gracia , Carretero-Landauro Diego Alonso , Iturrino-Vilchez David Fernando , Vásquez-Mananita Jeysson Joel , Geldres-Marchena Teodoro
Published: September 2022

El presente trabajo fue elaborado con la finalidad de desarrollar una propuesta de mejora para el área de logística de Bermanlab a través de la aplicación de herramientas de ingeniería para poder reducir los costos operacionales. En primer lugar, se identificó los problemas existentes en el área, se utilizó para el diagnóstico un diagrama de Ishikawa donde se exponen las causas de dichos problemas. Se propuso utilizar las herramientas Kardex, 5S y el modelo EOQ para la solución. Lo cual puede disminuir los costos operativos en S/. 9,368.16. Finalmente se realizó una evaluación económica, la cual tendría un VAN de S/. 11,987.15, TIR de 92.95% y un B/C de S /. 2.45, concluyendo que la propuesta sería rentable.
A study on the agglomeration characteristics of the scallop aquaculture industry in China
Authors: Jiang Qingqing , Zhao Zhuming , Mu Yongtong , Zhao Dan , Wu Biao
Published: September 2022

Scallops are economically important shellfish widely cultured in China. In this study, the agglomeration characteristics of the scallop aquaculture industry in Chinese coastal provinces were explored based on data from the China Fishery Statistical Yearbook from 2012 to 2020 and the comparative advantage and concentration level of the scallop breeding industry. The data were analyzed using the comprehensive relative advantage index, location entropy, and industrial concentration degree method. Two main results revealed that Hebei Province had the highest comparative advantage in terms of efficiency, followed by Fujian, Guangdong, Shandong, Guangxi, Liaoning, and Zhejiang Provinces. Hebei Province had the highest comparative advantage in scale, followed by Liaoning, Shandong, Hainan, Guangdong, Guangxi, Fujian, and Zhejiang Provinces. Additionally, the scallop cultivation industry in Hebei, Shandong, and Liaoning Provinces showed a high concentration, and the proportion of scallop production in the national production (CR4) in the three provinces, as well as in Guangdong, accounted for more than 99% year-round. Overall, Hebei, Shandong, and Liaoning Provinces had a comparative advantage in scale, comprehensive comparative advantage, and industrial agglomeration.
VULNERABILITY OF BANANA TREES VIA CLOSENESS AND RESIDUAL CLOSENESS PARAMETERS
Authors: TUNÇEL GÖLPEK Hande
Published: September 2022

One of the most important research topics about complex networks

is examination of their vulnerability. Therefore, there are many studies

in the literature about analyzing the robustness and reliability of networks

using graph theoretical parameters. Among these parameters, the centrality

parameters play an important role.The closeness parameters and its derivatives

are widely discussed. In this study, the closeness parameter and the more sensitive

parameter residual closeness which is based on closeness parameter have

been considered.Furthermore, the closeness and residual closeness of banana

tree structure have been calculated.
Unique Medicinal Spices- “Marathi Moggu and Capers”
Authors:   Assistant professor, department of PG Studies in Dravyaguna, Taranath Government Ayurvedic Medical College and Hospital, Ballari, Karigar Dr. Shivananda B
Published: September 2022

: Indian food habits are having medicinal values. Especially spices are the foundation of Indian food items. They not only impart taste but also they have medicinal benefits in keeping health in good condition. Marathi moggu is one such Indian spice which is mainly used in Karnataka and Andhra Pradesh. Capers are spices used in India as well as in western countries. Many spices are being used in worldwide; our Ayurvedic classics have mentioned medicinal properties of almost all spices. Marathi moggu is more popularly used spice in India, and many a times other spices are sold as Marathi moggu in markets hence here in this article, attempt is made to present accurate source of Marathi moggu along with another widely used spice Capers with their medicinal values as mentioned in Ayurvedic classics