bluuebunny/crossref_metadata_2025 huggingface dataset:
Machine-learning-estimation of high-spatiotemporal-resolution chlorophyll-a concentration using multi-satellite imagery
Authors: Chusnah Wachidatin Nisaul , Chu Hone-Jay , Tatas  , Jaelani Lalu Muhamad
Published: March 2023

Chlorophyll-a concentration for quantifying phytoplankton biomass is commonly used as an indicator for evaluating the trophic level of lakes and water quality. This research aimed to develop a high spatiotemporal-resolution model for the retrieval of chlorophyll-a in inland water. Firstly, the machine learning based models considering Sentinel-2 Multispectral Instrument and Sentinel-3 Ocean and Land Color Instrument (OLCI) images were applied to estimate chlorophyll-a concentrations (R2 = 0.873 and 0.822, respectively). The spatiotemporal fusion was performed to fuse the OLCI and MSI chlorophyll-a images with low temporal resolution but fine spatial-resolution, and with high temporal resolution but coarse spatial-resolution. The random forest was applied to fuse images from two distinct sensors, and to refine the spatial resolution of OLCI estimations to be the same as those of Sentinel-2 MSI. Results showed that the spatiotemporal fusion can estimate dense-temporal 10 m spatial resolution chlorophyll-a concentration in the Tsengwen Reservoir (Root-Mean-Square Error, RMSE = 1.25–1.47 μg L−1). The spatiotemporal fusion model was effectively applied to determine high spatiotemporal-resolution chlorophyll-a measurements in the aquatic system.
Human health risk assessment from exposure to multiple sources of Hexabromocyclododecanes (HBCDs) in Taiwan
Authors: Lo Shih-Lin , Wang Ren-Der , Chen Yi-Ju , Hsu Yuan-Cheng , Luo Yu-Syuan , Wang Gen-Shuh
Published: March 2023

Hexabromocyclododecanes (HBCDs) are endocrine-disrupting and persistent organic compounds commonly used in consumer products such as styrofoam, fire-resistant curtains, construction, aquaculture products, and food containers. Humans can expose to HBCD via dermal, ingestion, and inhalation routes; however, the inhalation exposure to HBCDs is not well characterized, especially for the size-segregated particles, which could quickly deposit into the respiratory system. In this study, we systematically characterized the dermal and inhalation exposures and performed an aggregate risk assessment of HBCDs in Taiwan. Sampling sites were selected considering the traffic or industrial contribution for air (n = 2, Sanchung, and Taichung) and soil sampling (n = 19, near the industrial zones). The quantitative analysis of HBCDs in extracted samples was achieved using LC–MS/MS. Our results showed that the concentrations of total HBCDs ranged from 0.1 to 6.6 pg m−3 in the particulate matter samples and 0.63 to 187 μg kg−1 in soil samples, where γ-HBCD was the dominant species, followed by α-HBCD and β-HBCD. The total HBCDs in the finest particles (i.e., particle size below 0.49 μm) ranged from N.D. to 1.5 pg m−3. However, no consistent trend was observed for the isomer distribution of HBCDs among air samples. Furthermore, the margin of exposure was the lowest through the ingestion pathway (5152 to 22555) and the highest through the inhalation pathway (6.71 × 105 to 2.09 × 107), showing that HBCD-induced health risk can predominantly attribute to ingestion exposure. Nevertheless, the traffic and industrial contribution of inhalable HBCD deserves further studies.
Imaging evaluation of patellofemoral joint instability: a review
Authors: Barbosa Roberto M. , da Silva Manuel Vieira , Macedo Carlos Sampaio , Santos Cristina P.
Published: March 2023

The multifactorial origin of anterior knee pain in patellofemoral joint disorders leads to a demanding diagnostic process. Patellofemoral misalignment is pointed out as one of the main causes of anterior knee pain. The main anatomical risk factors of patellofemoral instability addressed in the literature are trochlear dysplasia, abnormal patellar height, and excessive tibial tubercle–trochlear groove distance. Diagnostic imaging of the patellofemoral joint has a fundamental role in assessing these predisposing factors of instability. Extensive work is found in the literature regarding the assessment of patellofemoral instability, encompassing several metrics to quantify its severity. Nevertheless, this process is not well established and standardized, resulting in some variability and inconsistencies. The significant amount of scattered information regarding the patellofemoral indices to assess the instability has led to this issue. This review was conducted to collect all this information and describe the main insights of each patellofemoral index presented in the literature. Five distinct categories were created to organize the patellofemoral instability indices: trochlear dysplasia, patellar height, patellar lateralization, patellar tilt, and tibial tubercle lateralization.
Comment on: “exercise training and cardiac autonomic function following coronary artery bypass grafting: a systematic review and meta-analysis”
Authors: Gois Caroline Oliveira , Conceição Lino Sergio Rocha , de Andrade Guimarães Alana Lalucha , Carvalho Vitor Oliveira
Published: March 2023

Background

Low cardiorespiratory fitness is associated with poor prognosis in individuals with coronary artery disease and after coronary artery bypass grafting surgery. Thus, we comment about a meta-analysis that adds important information about the effect of exercise training on cardiac autonomic function in individuals following coronary artery bypass grafting surgery.

Main body

The study by Kushwaha et al. showed positive effects for heart rate variability and heart rate recovery in subjects after coronary artery bypass grafting surgery in response to acute physical training. These data are relevant, since heart rate variability is an independent predictor of for all-cause and cardiovascular mortality for individuals with cardiovascular disorders. Additionally, attenuated heart rate recovery is associated with increased risk for the same outcomes. Moreover, we summarize the quantitative data from studies that compared the effect of physical training in comparison with control group in cardiorespiratory fitness in adults following coronary artery bypass grafting.

Conclusions

Our findings suggest that improvements in peak oxygen consumption result in an additional benefit in adults following coronary artery bypass grafting. Considered that, the increased cardiorespiratory fitness is an independent predictor of longer survival in coronary artery disease.
Evaluation of patient radiation doses using DAP meter in diagnostic radiology procedures in Birjand, Iran
Authors: Zarghani Hassan , Jabbari Masoud , Pandesh Sajjad
Published: March 2023

Background

The concept of diagnostic reference level (DRL) is considered a regular method to optimize radiation protection in diagnostic imaging system. The objective of implementing a reference level for dose is to produce high-quality images by applying a minimum dose of radiation based on the As Low As Reasonably Achievable (ALARA) principle. Therefore, this study aimed to evaluate the status of radiation protection in diagnostic radiology wards of educational hospitals affiliated with Birjand University of Medical Sciences.

Methods

This study was performed during a period of 11-months in the radiology center of the teaching hospital of Birjand University of Medical Sciences. The studied population included 477 patients who were referred to as clinically indicated x-ray radiography. In order to calculate local DRLs, dose area product (DAP) was measured by a DAP-meter (KERMAX-plus SPD, model 120–131 HS) for 11 devices at educational hospitals affiliated with Birjand University of Medical Sciences. The local DRL values was calculated as 75% of the mean DAP distribution for a specific patient trial at each center.

Results

DAP for Chest PA examination was gained to be in the range from 0.12 Gy.cm2 to 0.42 Gy.cm2 with an average value of 0.23 Gy.cm2 which is above the value of the reference level (0.12 Gy.cm2) for Chest PA. For Chest lateral the observed DAP was found to be in the range from 0.18 Gy.cm2 to 1.48 Gy.cm2 with an average value of 0.65 Gy.cm2 and are therefore twice the reference value (0.3 Gy.cm2). The higher DRL values (average = 2.73) are for lumbar spine lateral radiography. It is observed that the DRL values of chest PA, abdomen AP and Lumbar spine AP are much lower with the earlier studies.

Conclusions

The DRLs helps in understanding the current practices in radiographic examinations. Comparison with other hospitals, the scope of dose optimization and ultimately patient dose reduction in hospitals affiliated with Birjand University of Medical Sciences needs further investigation.
Role of multiparametric MRI in characterization of complicated cystic renal masses
Authors: Zakaria Mostafa Ahmed , El-Toukhy Nahed , Abou El-Ghar Mohamed , El Adalany Mohamed Ali
Published: March 2023

Background

Bosniak classification improves sensitivity and specificity for malignancy among cystic renal masses characterized with MRI. The quantitative parameters derived from diffusion-weighted imaging, and contrast enhancement, can be used in distinguishing between benign and malignant cystic renal masses.

Methods

This prospective observational study included 58 patients (39 male and 19 female) with complicated cystic renal mass initially diagnosed by US or CT. All patients underwent multiparametric MRI study (Pre- and Post-Gd-enhanced T1WI, T2WI and DWI) by using 3 Tesla MRI scanner. Each cystic renal lesion was assigned a category based on Bosniak classification. Demographic data were recorded. ADC ratio, dynamic enhancement parameters in both corticomedullary and nephrographic phases as well as absolute washout were calculated and compared using ROC curve analysis.

Results

The sensitivity, specificity, positive predictive value, negative predictive value, and overall accuracy of the multiparametric MRI in categorization of cystic renal masses according to Bosniak classification version 2019 were 90.32%, 100%, 100%, 90% and 94.83%, respectively, which was higher compared to biparametric MRI and conventional MRI.

Conclusions

Multiparametric MRI can be utilized to confidently evaluate cystic renal masses, overcoming the traditional limitations of overlapping morphological imaging features. Quantitative parameters derived from multiparametric MRI allow better evaluation of complex cystic renal tumors to distinguish between benign and malignant complex cystic renal lesions.
A narrative perspective of island detection methods under the lens of cyber-attack in data-driven smart grid
Authors: Shukla Apoorva , Dutta Soham , Sahu Sourav Kumar , Sadhu Pradip Kumar
Published: March 2023

As criminals and hackers are developing new methods to interfere with the operation of the power grid, the nature of grid vulnerabilities and threats is continuously evolving. The growing interest in transitioning the unidirectional power system to a bidirectional data-driven modern grid will further escalate these issues. The question of cyber security becomes essential in particular critical decisions such as island detection. The incorrect decision of island occurrence may completely disrupt the operation of a portion of the grid, causing substantial damage to electrical equipment and grid maintenance workers. Fast monitoring and accurate control of unplanned islanding detection are essential for distributed generation-based active networks for providing continuous power supply to critical loads. Considering the above aspects, this paper serves on the perspective of different island detection methods and various aspects of cyber security. The type of cyber-attacks is categorized in terms of their behavior. Key points are discussed about how, when, and in what fashion and degree it can harm all the sectors of the grid, i.e., generation, transmission, and distribution system. Finally, the impact of cyber-physical attacks on the islanding decision system is presented. The research remedies for such measures are also presented. Moreover, a comparison is being made among various island detection methods based on the extent of impact of different cyber-attacks on the operation of these methods. Some promising future solutions for cyber-secure island detection methods are also suggested.
An automated guide to COVID-19 and future pandemic prevention and management
Authors: Okereke George Emeka , Azegba Okechukwu , Ukekwe Emmanuel Chukwudi , Echezona Stephenson Chukwukanedu , Eneh Agozie
Published: March 2023

In this paper, we present CoFighter, a mobile application for prevention and management of COVID-19 and other related pandemics in the globalized world. We took advantage of the proliferation of mobile smart devices in every home to design and implement an Android application for COVID-19 and similar pandemics. Since the outbreak of COVID-19 pandemic in 2019, there has been even more serious pressures on governments and health institutions on the best way to provide appropriate and reliable guide to individuals on how to contain the virus and similar pandemics in the future. Citizens have not been adequately informed of the various provisions and guides by their governments and the wide usage of social media had led to the spread of fake news, misinformation and conspiracy theories. It therefore becomes very necessary to develop a dynamic information repository in the form of a mobile application to help combat the spread of any pandemic whenever the need arises. The application provides information on COVID-19, vaccine challenges, prevention guides and cases management and timely updates to keep citizens properly and adequately informed. It makes provision for future similar pandemics that could throw the world into chaos as the CORONA virus did in 2019. The weaknesses and challenges observed in most popularly existing COVID-19 applications were highlighted and implemented in CoFighter. CoFighter provides users, governments and health workers with a platform not only to manage COVID-19 and other similar pandemics in the future, but also helps frontline health workers to better manage the pandemics. The developed application runs on an Android device with Android version 4.2 or higher and can be used not only to manage COVID-19 pandemic, but also to manage economic crisis and similar future pandemics. CoFighter is available via the Repository: https://github.com/OkeyIsOkay/CoFighter-Project.
Detection of joint involvement in patients with systemic lupus erythematosus using musculoskeletal ultrasound and its correlation with disease activity
Authors: El genedi Shahenaz Hamdi , Salem Mohamed N. , Farid Mahmoud , Ahmed Thoraya Mohamed , Taha Hanan Ali
Published: March 2023

Background

Musculoskeletal symptoms are common and could be the first presenting symptom in up to 50% of systemic lupus erythematosus patients, and they affect more than 95% of patients during the clinical course. The present study aimed to assess joint involvement in the wrists, hands, and knees of SLE patients using musculoskeletal ultrasonography and to correlate these findings with disease activity.

The study enrolled 40 Patients with SLE who were attending the Immunology outpatient clinic and internal medicine department of Beni-Suef University Hospital and 20 age and sex nearly matched healthy controls who have no rheumatological complaints. Participants had a comprehensive physical examination, series of laboratory tests, functional assessment by Health Assessment Questionnaire score, disease activity assessment of by European Consensus Lupus Activity score, and radiological examination by high-resolution Ultrasound machine called (LOGIC P 9) using a gray-scale US mode (13–18 MHz) with Power Doppler to detect joint synovitis, synovial hypertrophy, bone erosions and or tenosynovitis.

Results

There was a statistically significant prevalence of US abnormality of knee joints in both asymptomatic and symptomatic cases versus controls contrary to the wrist and hand US abnormality. The presence of SLE increases the risk of US abnormalities in knee joints 28 times more than controls also increasing the age of the patient one year increase the probability of getting abnormal findings in the knee joint by 1.156 times. While the only independent variable that can affect US abnormal findings in the wrist joint is the increase in Systolic Blood Pressure 1 mmHg with 1.06 times.

Conclusion

Musculoskeletal Ultrasound with applied Power Doppler is a good tool for the detection of early affection of joints either in symptomatic or asymptomatic SLE patients.
HRM and organizational learning in knowledge economy: investigating the impact of happiness at work (HAW) on organizational learning capability (OLC)
Authors: El-Sharkawy Safwat Adel , Nafea Muhammad Salah , Hassan Emad El-Din H.
Published: March 2023

The purpose of this paper is to examine the main antecedents of happiness at work (HAW) as a main driver of organizational learning capabilities (OLC) among academic staff working in Egyptian private universities. The mediating role of HAW between these drivers like Work–Life Balance (WLB) and Recognition from one side and OLC on the other side has also been evaluated. A survey-based research strategy has been adopted. A survey of 207 academic staff employees working in Egyptian private universities was conducted to test the direct effects of the hypothesized relationships. The findings of this study supported the hypotheses that recognition has significant positive total effect on OLC and partially through the mediating effect of HAW among academic staff at Egyptian private universities. In addition, WLB also was found to have a significant positive total effect on OLC and partially through the mediating effect of HAW. Finally, it was concluded that HAW has a significant positive total effect on OLC and partially mediates the Recognition-OLC and WLB-OLC links. Accordingly, this research provides crucial and major implications for both HR professionals and the top management of Egyptian private universities through considering factors like recognition and WBS while designing an effective total reward system that reinforces the overall organizational learning capabilities in the emerging markets context.
Serum fatty acid-binding protein 4 as a biomarker for early detection of diabetic nephropathy in type 2 diabetes
Authors: Shaker Amr M. , Mohamed Maggie E. , Ramzy Tarek , Ali Mayssa I.
Published: March 2023

Background

Diabetic nephropathy (DN) is one of the major causes of ESKD, and its complications are characterized by proteinuria, decreased glomerular filtration, and renal fibrosis resulting in the deterioration of renal functions, so early detection of nephropathy is essential to slow down and prevent the progression of the disease. Fatty acid-binding protein 4 (FABP4) is expressed in renal proximal tubule cells and released in response to hypoxia caused by decreased peritubular capillary blood flow, so serum FABP 4 is one of the promising biomarkers for early prediction of diabetic nephropathy in patients with type 2 diabetes.

Methods

This was a case–control study that included 120 patients with type-2 diabetes mellitus selected from Kasr Alainy Hospital, Cairo University Hospital, who were divided into 2 groups: the first group comprised 60 diabetic patients divided into 3 sub-groups according to their urinary albumin/creatinine ratio (normo-, micro-, and macroalbuminuria). The second group included 60 apparently healthy individuals. All patients were subjected to history, clinical examination, laboratory investigations, and serum FABP4 by ELISA.

Results

There was a significant increase in serum FABP4 in the macroalbuminuria group, followed by the microalbuminuria group, then the normoalbuminuria group, in comparison to the normal control group. There was a significant positive correlation between serum FABP 4 level and the duration of diabetes and HBA1c. There was a significantly negative correlation between serum FABP4 and serum albumin in the macroalbuminuria group. Receiver operating characteristic curve analysis found that serum FABP 4 discriminate micro- and macroalbuminuric patients with diabetes from controls with 96.6% and 98.3% diagnostic specificity and 100% diagnostic sensitivity respectively.

Conclusion

Serum FABP 4 can be used as a biomarker for the early detection of diabetic nephropathy.
Short-term evaluation of motor and sensory nerve conduction parameters in COVID-19-associated peripheral neuropathy patients
Authors: Shaddad Ahmad M. , Hussein Aliaë A. R. Mohammed , Tohamy Amal Mohamed Aly , Khalil Waleed Gamal Elddine
Published: March 2023

Background

Severe acute respiratory syndrome coronavirus 2 (SARS‐COV‐2) is mostly associated with upper and lower respiratory tract manifestations. However, coronavirus disease 19 (COVID-19) can result in a wide range of other systemic symptomatology, including neuropsychiatric, psychological, and psychosocial impairments. Literature regarding neurological compromise, including neuropathy and sensory and motor affection associated with COVID-19, is still limited.

This study aims to evaluate the sensory, motor neuropathy, and secondary neurological impairment among patients with mild to moderate coronavirus disease associated with peripheral neuropathy within 1 month.

Methods

Forty participants, including 20 mild to moderate COVID-19 patients with peripheral neuropathy and 20 age and gender-matched healthy volunteers, were recruited in this case/control study. Laboratory evaluation focused on C-reactive protein (CRP) and D-dimer levels. Oxygen saturation for all participants was recorded. The neurophysiological study included motor nerve study, sensory nerve study, and F wave study for upper and lower limbs were done.

Results

The two groups were similar regarding baseline data. Neurological symptoms’ onset in the COVID-19 group ranged from 4 to 24 days. Levels of CRP and D-dimer levels were significantly higher in patients versus the control group. Motor nerve conduction (MNC) amplitude and latency for the median nerve were significantly compromised among the COVID-19 group. The MNC latency and F wave latency for the posterior tibial nerve were significantly higher in the COVID-19 group. The CRP and D-dimer levels were associated with a significant positive correlation with a latency of median nerve MNC, sensory nerve conduction (SNC), and f-wave; latency of MNC and F wave of the posterior tibial nerve; and SNC latency for sural nerve.

Conclusion

neurological involvement can occur in mild to moderate cases of SARS-COV-2 infection and add to the burden of the disease. Neurological symptoms in the course of COVID-19 disease should be interpreted cautiously, and appropriate diagnosis, including nerve conduction studies and management, should be considered.

Trial registration

ClinicalTrials.gov. NCT05721040.
Drivers of soil biophysical processes along an elevational gradient at Pico de Orizaba volcano, Mexico
Authors: Angeles Guillermo , Álvarez-Jiménez Marycruz , Anthelme Fabien , Barois Isabelle , Chaparro Carrillo José Luis , Cruz-Maldonado Nereyda , Decaens Thibaud , de los Santos-Bailón Martín , Fourtier Stéphane , García-Gutiérrez Emmanuel , García-Segura David , Gómez-Aguilar Rodrigo , Gómez-Anaya Antonio , Hernández Eduardo , Hernández-Cáceres Daniel , Jiménez Leonor , Marín-Castro Beatriz E. , Merino-Martín Luis , Morales-Martínez Marco A. , Monfil-León Edwin U. , Palestina René A. , Pimentel-Reyes Carlos , Reyes Ricardo Quiroz , Reverchon Frédérique , Rey Hervé , Roumet Catherine , Siebe-Grabach Christina D. , Sieron Katrin , Vázques Reyes Víctor , Weemstra Monique , Stokes Alexia
Published: March 2023

Elevational gradients are characterized by major shifts in environmental conditions, reflected through changes in climatic and soil variables. These shifts strongly impact the composition, community structure and specific functional traits of vegetation. Vegetation, in turn, influences soil properties through litter input, root growth and the release of root exudates, thereby influencing soil microbial and faunal communities. Here, we report and briefly describe data of soil and underlying bedrock physical and chemical properties, climatic variables, plant community composition and species abundance, soil microbial diversity and macro and mesofaunal abundance and diversity. Data are provided for 6 elevations (3400–4600 m) ranging from pine forest to alpine prairie. We focused on soil biophysical properties beneath several keystone or community-structuring plant species with different growth forms: (1) tree (Pinus hartwegii Lindl.); shrub (Oxylobus arbutifolius (Kunth) A. Gray and Chionolaena lavandulifolia (Kunth ex Kunth) Benth. & Hook.f. ex B.D.Jacks.); and (3) herb (Lupinus montanus Kunth and Senecio roseus Sch.Bip.). These data are useful for understanding how shifts in abiotic conditions and vegetation communities along an elevational gradient affect soil ecosystem services such as water infiltration, soil aggregation and carbon (C) storage, and modify soil biodiversity. The collected data also provide useful information to understand how alpine vegetation, soil macro- and meso-fauna, and soil bacterial communities may shift under a climate change scenario.
Patterns of Metastatic Recurrence of Genetically Confirmed Myxoid Liposarcoma
Authors: Homsy Pauliina , Böhling Tom , Seitsonen Anne , Sampo Mika , Tukiainen Erkki , Blomqvist Carl
Published: March 2023

Background

Most sarcomas metastasize predominantly to the lungs, and chest x-ray, or computed tomography, is the most commonly used staging investigation. Myxoid liposarcomas (MLSs) are rare tumors with a tendency to metastasize to extrapulmonary loci. The aim of this study was to assess the locations of the first metastases in MLS patients, to guide the design of effective staging and follow-up imaging protocols.

Methods

Patients treated for MLS between 1987 and 2017 were identified in a prospectively maintained register. Histology of the tumors was reassessed. In addition, the presence of one of the pathognomonic gene translocations was confirmed, uniquely for a retrospective series. The surgical and oncological outcomes were reviewed. A comprehensive review of the literature was performed on the metastatic pattern of MLS, including series with 10 or more MLS patients with metastatic disease.

Results

A total of 32 patients with genetically confirmed MLS were identified, with a median follow-up of 7.6 years. Seven patients (22%) developed metastatic disease, five initially intra-abdominally and only one to the lungs. The comprehensive review included 14 series with 1853 patients, 348 (19%) of whom had metastases. The location of the first metastases was soft tissues in 32% of patients, intra-abdominal in 26%, pulmonary in 24%, and bone in 17%.

Conclusions

MLSs metastasize often intra-abdominally and to extra-abdominal soft tissues. Thus, whole-body imaging may be indicated during the initial assessment and follow-up of these patients.
Perceived social support, newborn temperament and socioeconomic status in postpartum depression: report from southwest Serbia
Authors: Vrcić Amar Anida , Sejfović Hana
Published: March 2023

Aim of the study

The aim of this study is to asses the relationship between postpartum depression and perceived social support, newborn temperament, and selected sociodemographic variables.

Subject or material and methods

The sample consisted of 145 mothers, with an average age of 27, mostly married. The following instruments were used in the research: Questionnaire on sociodemographic characteristics, Neonatal temperament scale, Edinburgh scale of postpartum depression - EPDS and Scale of perceived social support.

Results

The results showed that reduced social support from partners, friends, and family, difficult newborn temperament, and low socioeconomic status correlated with postpartum depression.

Discussion

The practical implications of the research are reflected in the understanding of social support as a significant predictor of depression in the postpartum period and the implementation of the social component in the system of support and assistance to pregnant women and mothers.

Conclusions

Recognizing the factors that cause mood disorders after childbirth is an important part of the diagnosis and prevention of postpartum depression. Postpartum depression is a non-psychotic postpartum mood disorder that can last up to 12 months postpartum. The etiological disorder is still not differentiated because it is differentiated through a bio-psycho-social basis.
The mediating role of cognitive processing in the relationship between social support and secondary traumatic stress symptoms in healthcare professionals
Authors: Gurowiec Piotr , Ogińska-Bulik Janina , Michalska Paulina , Kędra Edyta
Published: March 2023

Aim of the study

The aim of this study was to establish how cognitive processing of trauma may mediate the interaction between social support and secondary traumatic stress (STS) symptoms in healthcare professionals.

Subject or material and methods

We collected data from 419 Polish paramedics and nurses. The age of study participants ranged from 19 to 65 years (M = 39.60, SD = 11.03). We used a custom-developed survey and the Secondary Traumatic Stress Inventory, Social Support Scale and Cognitive Processing of Trauma Scale. Pearson’s correlation coefficients were applied to analyze the relationships between variables. A mediation analysis was used to check a mediating role of cognitive trauma processing.

Results

The results showed significant links between STS symptoms and social support, as well as cognitive processing of trauma.

Discussion

Cognitive coping strategies, play the intermediary role in the relationship between social support and STS symptoms, however, this role varies depending on the source of support and preferred cognitive coping strategies.

Conclusions

Paramedics and nurses have higher risk in developing STS. Our findings show that cognitive trauma processing and social support may play an important role in secondary traumatic stress symptoms. It is crucial to develop and implement programs for the prevention and treatment of STS symptoms, which would take into account the studied variables.
Metacognition, attachment and psychotherapy in first-episode psychosis: a case study.
Authors: Vergara-Ramirez Sergio
Published: March 2023

Aim of the study

Psychotherapy in first-episode psychosis is essential for the recovery of affected users. Those with primary psychotic disorders experience impaired abilities to form complex ideas about themselves and others, called metacognitive deficits. They also present important attachment disturbances.

Subject or material and methods

This paper aims to review the concepts of metacognition and attachment in psychosis, present an interpersonal metacognitive model incorporating elements of attachment theory and analyze a clinical case to show the integration of different strategies in the initial phase of therapy. The Metacognitive Assessment Scale-Abbreviated (MAS-A) was used to assess changes in the user’s metacognitive ability.

Results

The therapist adopted the role of secure base and safe-haven to develop an adequate therapeutic relationship, operating through metacommunication and self-participation. Normalization interventions were applied and the user’s agenda was consistently prioritized. The user developed greater metacognitive abilities in the MAS-A along with better functioning, maintained few symptoms and was able to move into a new phase of therapy.

Discussion

The review and clinical case presented highlight the importance of an interpersonal metacognitive model that considers the users’ attachment pattern and a solid therapeutic relationship. Hierarchical metacognitive interventions are presented that allowed the user to address more complex psychological conflicts in therapy.

Conclusions

Psychotherapeutic models that integrate the concepts of metacognition and attachment theory are promising to improve self-reflective abilities in users with a first-episode psychosis. The clinical case presented would be a contribution to design future studies about these processes.
Mental health predictors of medical staff in the early stage of COVID-19 pandemic in Poland.
Authors: Gawrych Magdalena , Cichoń Ewelina , Kiejna Andrzej
Published: March 2023

Aim of the study

To identify the sociodemographic predictors of general functioning, stress, anxiety and depression in Polish medical workers’ group in the early stage of COVID-19 pandemic.

Subject or material and methods

A cross-sectional observational study using an online questionnaire was conducted via both professional organizations and social media groups. A total of 303 completed responses were received. More than half of participants (54.8%) work in public hospitals, the majority was females (77.6%), nurses (38.3%), the age was ranged from 22 to 68 years (M = 41.37; SD = 11.38). The semi-structured online questionnaire covered following areas: (1) general sociodemografic data, including health state and COVID-19 related questions; (2) psychological impact and mental health, measured by GHQ-30 and DASS-21.

Results

Overall, our results showed that sex, years of experience and profession have predictive power to explain mental health being of medical workers during COVID-19. In our study, females reported worse general functioning (GHQ-30) and higher stress (DASS-21) than males. Longer working experience is predictor of better interpersonal relationships (GHQ-30).

Discussion

Years of experience and gender accounted for 27% of the variance of the level of stress in medical staff group. With the years of experience of healthcare professionals, the stress decreases. Nurses reported less severity of anxiety than other medical workers. We assume those results are connected with education process as well as experience level.

Conclusions

It may be important to develop a personalized interventions, taking into account the main predictors of mental well-being. Authorities should consider creating the tailored-made programs for particular medical professions.
Aktuelle Herausforderungen bei der Implementierung von Self-Service Business Intelligence
Authors: Fischer Felix B. , Burger Anton A. , Gehling Benedikt
Published: March 2023

Im Rahmen von Self-Service Business Intelligence (SSBI) sollen Aufgaben zur entscheidungsorientierten Informationsgewinnung aus Daten von Power Usern auf Business User übertragen werden. Damit will man die Entscheidungsgeschwindigkeit, Eigenständigkeit und Flexibilität der Business User erhöhen. Obwohl das Konzept seit über zehn Jahren existiert, wird es bisher von einer Minderheit der DACH-Unternehmen angewandt. Insofern stellt sich die Frage, wie die Implementierung des Konzepts gelingen kann und welche Herausforderungen dabei bestehen. Der vorliegende Beitrag ergänzt den aktuellen Forschungsstand zu den Implementierungsherausforderungen mit Hilfe von Experteninterviews und geht dabei auch auf neuere Entwicklungen im Vergleich zum bisherigen Forschungsstand wie z. B. auf SSBI mit Data Lakes ein. Zudem werden konkrete Implementierungsoptionen abgeleitet, die die Datensituation im jeweiligen Unternehmen berücksichtigen.
First study on in vitro antiviral and virucidal effects of flavonoids against feline infectious peritonitis virus at the early stage of infection
Authors: Triratapiban Chanittha , Lueangaramkul Varanya , Phecharat Nantawan , Pantanam Achiraya , Lekcharoensuk Porntippa , Theerawatanasirikul Sirin
Published: March 2023

Background and Aim: Feline infectious peritonitis (FIP), one of the most important infectious diseases in cats is caused by FIP virus (FIPV), a mutated variant of feline coronavirus. Feline infectious peritonitis has a negative impact on feline health, with extremely high mortality in clinical FIP-infected cats, particularly young cats. There are no approved drugs for FIP treatment, and therapeutic possibilities for FIP treatment are limited. This study aimed to utilize nature-derived bioactive flavonoids with antiviral properties to inhibit FIPV infection in Crandell–Rees feline kidney (CRFK) cells.

Materials and Methods: The cytotoxicity of 16 flavonoids was evaluated on CRFK cells using a colorimetric method (MTS) assay. Viral kinetics of FIPV at 50 tissue culture infectious dose (TCID50)/well was determined during the first 24-h post-infection (HPI). Antiviral activity was evaluated based on the replication steps of the virus life cycle, including pre-compound, attachment, penetration, post-viral entry, and virucidal assays. The antiviral efficacy of flavonoids against FIPV was determined based on positive FIPV-infected cells with the immunoperoxidase monolayer assay and viral load quantification using reverse transcription-quantitative polymerase chain reaction.

Results: Two flavonoids, namely, isoginkgetin and luteolin, inhibited FIPV replication during post-viral entry in a dose-dependent manner, with 50% maximal effective concentrations = 4.77 ± 0.09 and 36.28 ± 0.03 μM, respectively. Based on viral kinetics, both flavonoids could inhibit FIPV replication at the early stage of infection at 0–6-HPI for isoginkgetin and 2–6-HPI for luteolin using a time-of-addition assay. Isoginkgetin exerted a direct virucidal effect that reduced the viral titers by 2 and 1.89 log10 TCID50/mL at 60 and 120 min, respectively.

Conclusion: Isoginkgetin interfered with FIPV replication during both post-viral infection and virucidal experiments on CRFK cells, whereas luteolin inhibited the virus after infection. These results demonstrate the potential of herbal medicine for treating FIP.

Keywords: antiviral, feline coronavirus, feline infectious peritonitis virus, flavonoids, infectious disease.
The reproductive success of Simmental bovine after sex-sorting under various incubation and centrifugation protocols
Authors: Priyanto Langgeng , Herdis Herdis , Santoso Santoso , Anwar Rahma Isartina , Priyatno Tri Puji , Sitaresmi Pradita Iustitia , Azhari Faiz , Gunawan Muhammad , Putranti Oktora Dwi
Published: March 2023

Background and Aim: To enhance the reproductive potential and increase productivity and population of cows, spermatozoa sex-sorting technology is required. This study aimed to examine the effect of sexing sperm, separated using a bovine serum albumin (BSA) column with varying incubation durations and centrifugation methods, for successful artificial insemination.

Materials and Methods: Six Simmental bulls and 30 cows (n = 30) as the recipients were selected for this study at Balai Pembibitaan Hijauan Pakan Ternak Sembawa Indonesia. The study parameters included sperm motility, viability, plasma membrane integrity, and conception rate (CR). The experiment was divided into three protocols to find out differences in some parameters: (1) BSA incubation time effect (P) with P1 (40 min), P2 (50 min), and P3 (60 min); (2) freezing time effect with before freezing and after-thawing treatments; and (3) CR determined by measuring the proportion of pregnant cows following insemination with non-sexed, X-bearing, and Y-bearing sperms without centrifugation (n = 15) (A0, A1, and A2) and with centrifugation (n = 15) (B0, B1, and B2) in the acquired data, which were counted using the Statistical Package for the Social Sciences version 21 program. Analysis of variance was utilized to evaluate all treatments at various levels.

Results: The results demonstrated that centrifugation time influenced all sperm quality metrics for sperm containing X and Y (p < 0.05). The non-return rate (NRR) of non-sexed frozen semen, both centrifuged (A0) and not centrifuged (B0), was more significant than frozen semen produced by sexing X and Y spermatozoa. The NRR indicated a value of 80% based on the number of lactating cows.

Conclusion: Bovine serum albumin incubation and centrifugation protocols influenced and decreased all sperm quality indicators throughout the sexing procedure and could still be used as a sexing protocol. Furthermore, regarding NRR and service per conception, non-sexual treatment is superior to sexing treatment.

Keywords: bovine serum albumin, centrifugated, conception rate, incubation, sexing, sperm.
Decisions of the Young Generation in Using Digital Banking Services: Structural Equation Modeling Analysis
Authors: Kresnowati Anggari
Published: March 2023

This study aims to create a new research model with a variety of variables to comprehend and forecast the key factors that influence young people's decisions to use digital banking. This study uses a quantitative method with a multivariate analysis approach, for this reason, the Partial Least Square Structural Equation Modeling (PLS-SEM) analysis technique is used. According to the findings of this study, respondents' perceptions of the quality of digital banking products such as mobile banking, SMS banking, phone banking, and internet banking do not influence them to continue using digital banking. Considerations of usability, benefits, risks, and ease of use dominated respondents' decisions to use digital banking services.
Agentenbasierte Modellierung und Simulation im Pandemiemanagement
Authors: Hälterlein Jens
Published: March 2023

Mathematical models and computer simulations play a crucial role in the context of the COVID-19 crisis for knowledge about the possible course of the pandemic and for appropriate policy decisions. The paper presents results from an ethnographic study of a government-funded R & D project dealing with agent-based modeling and simulation (ABMS) in the context of pandemic management. Based on the assumption that the use of computer simulations in pandemic management is not only a means to an end for political or epidemiological goals but also plays a significant role in determining which goals and strategies appear politically legitimate, the paper reconstructs how insights into the pandemic are generated in ABMS and specifically in the researched project and made accessible for decision-making.
Mechanical and Durability Performances of Alkali-resistant Glass Fiber-reinforced Concrete
Authors:   Louisiana Tech University, Ruston, LA, United States of America., Hussain Shaik , Yadav Jitendra Singh
Published: March 2023

Concrete, being the most widely used construction material in the world, lacks strength in direct tension and flexure. Attempts to reinforce concrete in tension include the use of steel rebars to strengthen the tensile side of concrete as well as the use of discrete fibers as a reinforcing medium. The study conducted in this manuscript details the effects of including alkali-resistant glass fibers in concrete. Mechanical strength, such as strength in compression and flexure, chord modulus of elasticity and bond pull-out strength, have been measured along with porosity and resistance to accelerated carbonation. Five different water to binder ratios in a range of 0.4 to 0.6 had been used to prepare the design mix proportions. The optimum fiber dosage was found to be 1.5% by weight of cement used. The same had been adopted in the design mix proportions. The average increase in compressive strength and flexural strength was 13% and 28%, respectively. Alkali-resistant glass fiber concrete showed less resistance to carbonation when compared to control mix. Results indicate that glass fibers play a predominant role in providing flexural strength to concrete. The pull-out strength of fiber was added to extra post-cracking flexural strength. The inclusion of alkali-resistant glass fibers imparted a maximum addition of 44% increase in the flexural strength compared to control concrete. The inclusion of alkali-resistant glass fibers in concrete paves the way for a leaner mix and eradicates the possibility of congestion of steel reinforcement for certain structures. KEYWORDS: Alkali-resistant glass fibers, Accelerated carbonation, Bond strength, Compressive strength, Flexural strength.
Assessment of Existing Pavement Distresses Utilizing ArcMap-GIS: The Case of Nablus City
Authors:   An-Najah National University, Nablus, Palestine, Issa Amjad , Qanazi Saleh , Natsheh Emad , Rashed Abdallah
Published: March 2023

This paper aimed at utilizing GIS software in calculating pavement condition index )PCI( values, using four different interpolation methods: IDW, spline, trend and kriging. The case study covers four major streets in Nablus city with a total length of about 6.50 km. The PCI values were calculated using the ASTM conventional method. The four streets were divided into equal 100- meter sections. The PCI values were also calculated for each point of defect in both directions of the streets. The results of the four methods (point by point of defects) were compared manually with the conventional method (ASTM procedure). The results showed that the spline method had a strong correlation with the conventional method in terms of multiple R and R-square calculation (multiple R for left 0.918, right 0.947 and R2 for left 0.843, right 0.897). This method also fitted the data better than the other methods, as seen from the linear regression model results, in addition to producing the minimum error value. The results indicated that by identifying the PCI value, it would be possible to select the proper pavement maintenance and corresponding cost for each point of defect. This in turn would help in prioritizing pavement sections. KEYWORDS: Pavement condition index (PCI), GIS, Interpolation, Distress, Maintenance, Spline.
Performance Analysis of Public Bus Transport Services in Rural Areas
Authors:   Jordan University of Science and Technology, Al-Suleiman Turki I. , Al-Torkman Rawan , Mujalli Randa Oqab
Published: March 2023

This study investigated the performance of rural public bus transport services in Jordan Valley. The performance measures included availability, comfort and convenience, waiting time, mobility, productivity and safety. The data used in this research was collected from three sources: field survey of existing bus routes, operational data from Land Transport Regulatory Commission and questionnaire surveys which were distributed to a sample of passengers and bus drivers. The obtained data was used to compute the performance measures, as well as to develop statistical models to estimate the average waiting time of buses at peak and off-peak hours. The results indicated that the waiting time at off-peak hours was two and a half times the waiting time at peak hours. It was found that 40% of the external bus routes were within the range of overall Level of Service (LOS) C & D, 26.67% between B & D, 13.33% between B & C, 13.33% between C & E and 6.67% between D & E. Also, it was found that 60% of internal bus routes’ LOSs were between C & D, 20% between C & E and 20% with LOS C. It was found that the average perceived waiting time depends on the total travel time regardless of on-peak or off-peak trips. KEYWORDS: Public transport, Bus services, Performance measures, Waiting time, Jordan Valley.