bluuebunny/crossref_metadata_2025 huggingface dataset:
Performance and harmonic detection algorithm of phase locked Loop for parallel APF
Authors: Wang Dan , Yang Linsen , Ni Lei
Published: April 2024

As the boost of power electronics technology, the harmonic problem in the power system is becoming increasingly prominent. Fourier decomposition is performed on the load current in the power system, and components with a frequency that is an integer multiple of the fundamental wave are referred to as harmonic components. Harmonic control is essential to establish a safe and reliable power grid environment and provide high-quality and clean electricity to power users. The study focused on parallel active power filters, proposed a specific harmonic detection method on the grounds of synchronous harmonic rotating coordinate system, and developed a phase-locked loop design on the grounds of order generalized integrator. Meanwhile, a compensation current control method on the grounds of space vector pulse width modulation was introduced. The results showed that in the full compensation simulation experiment, the compensated A-phase grid side current waveform was significantly improved and presented a sinusoidal shape. After 0.05 s, the actual output compensation current closely followed the command current. Meanwhile, after compensation, the total harmonic distortion rate decreased from 26.58 to 3.06%. In specific harmonic compensation simulation experiments, when the sum of 5th, 7th, and 11th harmonic components was used as the command current for compensation, the distortion of the current waveform was improved after the load undergoes a sudden change. After compensation, the 5th, 7th, and 11th harmonic content significantly decreased, and the total harmonic distortion rate decreased to 4.08%. This indicated that the proposed phase-locked loop design and harmonic detection method for active power filters had high stability and effectiveness. The study’s primary contribution is to enhance the utilization efficiency of DC voltage and improve the dynamic response ability of current. Additionally, it offers a new method for reducing the impact of harmonics on the power grid and improving power quality. It provided an effective method reference for technological progress in related fields such as power electronics and control engineering.
A modified local thermal non-equilibrium model of transient phase-change transpiration cooling for hypersonic thermal protection
Authors: Jin Kaiyan , Zhao Jin , Yao Guice , Wen Dongsheng
Published: April 2024

Aiming to efficiently simulate the transient process of transpiration cooling with phase change and reveal the convection mechanism between fluid and porous media particles in a continuum scale, a new two-phase mixture model is developed by incorporating the local thermal non-equilibrium effect. Considering the low-pressure and high overload working conditions of hypersonic flying, the heat and mass transfer induced by capillary and inertial body forces are analyzed for sub-cooled, saturated and super-heated states of water coolant under varying saturation pressures. After the validation of the model, transient simulations for different external factors, including spatially-varied heat flux, coolant mass flux, time-dependent external pressure and aircraft acceleration are conducted. The results show that the vapor blockage patterns at the outlet are highly dependent on the injection mass flux value and the external pressure, and the reduced saturation temperature at low external pressure leads to early boiling off and vapor blockage. The motion of flying has a large influence on the cooling effect, as the inertial force could change the flow pattern of the fluid inside significantly. The comparison of the results from 2-D and 3-D simulations suggests that 3-D simulation shall be conducted for practical application of transpiration cooling, as the thermal protection efficiency may be overestimated by the 2-D results due to the assumption of an infinite width length of the porous plate.
Left ventricular diastolic function and cardiotoxic chemotherapy
Authors: Rashid Haider , Rashid Aamir , Mattoo Asif , Guru Faisal R. , Mehvish Syed , Kakroo Shahood Ajaz , Lone Ajaz Ahmad , Aslam Khursheed , Hafeez Imran , Rather Hilal
Published: April 2024

Background

Left ventricular ejection fraction falls when the myocardium has already lost a significant portion of its functional capacity. There are conflicting data on whether diastolic dysfunction precedes systolic dysfunction after cardiotoxic chemotherapy. We aimed to study systolic and diastolic dysfunction after cardiotoxic chemotherapy and whether diastolic dysfunction can predict subsequent risk of systolic dysfunction. It was an observational prospective cohort study, and patients receiving cardiotoxic chemotherapy were included. Baseline, demographic, and clinical details were recorded. Echocardiographic measurements of left ventricular systolic function, global longitudinal strain, and diastolic function were noted at baseline, three months, and 6 months.

Results

We included eighty patients. The mean age of the patients was 54.92 ± 7.6 years, predominantly females (80%). The mean left ventricular ejection fraction fell from 64.92 ± 1.96 to 60.97 ± 4.94 at 6 months. Low ejection fraction was seen in 8 (10%) patients at 6 months. The mean global longitudinal strain (GLS) at baseline was − 18.81 ± 0.797 and fell to − 17.65 ± 2.057 at 6 months, with 12 (15%) patients having low GLS (< − 18). Grade 1 diastolic dysfunction was seen in 22 (27.5%) patients, and grade 2 diastolic dysfunction was seen in 3 (3.8%) patients at 6 months. There was a significant decrease in E/A ratio (inflow early diastolic velocity/Inflow late diastolic velocity), mitral tissue Doppler velocity, and an increase in isovolumic relaxation time, mitral valve deceleration time, and E/e′ (inflow early diastolic velocity/tissue Doppler mitral annular velocity), at three months and 6 months. Ejection fraction at 6 months was significantly and negatively correlated with diastolic dysfunction at three months (r = − 0.595, p = 0.02).

Conclusions

Cardiotoxic chemotherapy is associated with early diastolic dysfunction. Early diastolic dysfunction predicts subsequent left ventricular systolic dysfunction.
Outcomes of SDHB Pathogenic Variant Carriers
Authors: Davidoff Dahlia F , De Abreu Lourenco Richard , Tsang Venessa H M , Benn Diana E , Clifton-Bligh Roderick J
Published: April 2024

Context

Carriers of germline pathogenic variants (PVs) in succinate dehydrogenase type B (SDHB) are at increased risk of developing pheochromocytomas and paragangliomas (PPGLs). Understanding their outcomes can guide recommendations for risk assessment and early detection.

Objective

We performed a systematic review and meta-analysis of the following outcomes in SDHB PV carriers: age-specific risk of developing tumors, metastatic progression, second primary tumor development, and mortality.

Methods

PubMed, MEDLINE, and EMBASE were searched. Sixteen studies met the inclusion criteria and were sorted into 4 outcome categories: age-specific penetrance, metastatic disease, risk of second tumor, and mortality. We assessed heterogeneity and performed a meta-analysis across studies using a random-effects model with the DerSimonian and Laird method.

Results

Penetrance of PPGLs for nonproband/nonindex SDHB PV carriers by age 20 was 4% (95% CI, 3%-6%), 11% (95% CI, 8%-15%) by age 40, 24% (95% CI, 19%-31%) by age 60%, and 35% (95% CI, 25%-47%) by age 80. The overall risk of metastatic disease for nonproband/nonindex carriers with PPGLs was 9% (95%, CI 5%-16%) per lifetime. In all affected cases (combining both proband/index and nonproband/nonindex carriers with tumors), the risk of a second tumor was 24% (95% CI, 18%-31%) and all-cause 5-year mortality was 18% (95% CI, 6%-40%).

Conclusion

Penetrance for PPGLs in SDHB PV carriers increases linearly with age. Affected carriers are at risk of developing and dying of metastatic disease, or of developing second tumors. Lifelong surveillance is appropriate.
Mild Hyponatremia Is Not Associated With Degradation of Trabecular Bone Microarchitecture Despite Bone Mass Loss
Authors: Bioletto Fabio , Sibilla Michela , Berton Alessandro Maria , Prencipe Nunzia , Varaldo Emanuele , Maiorino Federica , Cuboni Daniela , Pusterla Alessia , Gasco Valentina , Grottoli Silvia , Ghigo Ezio , Arvat Emanuela , Procopio Massimo , Barale Marco
Published: April 2024

Context

Hyponatremia is associated with increased risk of osteoporosis and fractures. The impact of hyponatremia on noninvasive indices of bone quality, however, is unknown.

Objective

To evaluate whether trabecular bone microarchitecture, assessed noninvasively by trabecular bone score (TBS), is altered in patients with hyponatremia.

Methods

We conducted a cross-sectional analysis of the population-based 2005-2008 cycles of the National Health and Nutrition Examination Survey, in which TBS measurement was performed. The main outcome measures were TBS values and bone mineral density (BMD) T-scores at the lumbar spine, total hip and femoral neck.

Results

A total of 4204 subjects aged 50 years or older were included (4041 normonatremic, 163 hyponatremic—90.8% with mild hyponatremia). Univariate analyses did not show any difference in TBS between patients with and without hyponatremia (1.308 ± 0.145 vs 1.311 ± 0.141, P = .806). Hyponatremic subjects had lower BMD T-score at total hip (−0.70 ± 1.46 vs −0.13 ± 1.32, P < .001) and femoral neck (−1.11 ± 1.26 vs −0.72 ± 1.14, P = .004), while no difference was observed at lumbar spine (−0.27 ± 1.63 vs −0.31 ± 1.51, P = .772). After adjustment for relevant confounders, hyponatremia was confirmed as an independent predictor of lower BMD T-score at the total hip (β = −0.20, 95% confidence interval [CI]: [−0.39, −0.02], P = .029), while the significance was lost at the femoral neck (P = .308). Again, no association between hyponatremia and lumbar spine BMD (P = .236) or TBS (P = .346) was observed.

Conclusion

Hyponatremia, at least in mild forms, is not associated with a degradation of trabecular microarchitecture, assessed noninvasively by TBS. An independent association between hyponatremia and loss of bone mass is confirmed, particularly at the total hip.
The Palestinian Feminist Movement and the Settler Colonial Ordeal
Authors: Alasah Eman
Published: April 2024

In light of recent developments in both the (anti)colonial and feminist discourses surrounding the settler colonial condition of Palestine, this article revisits and expands intersectionality as an analytical tool that captures manifold paradigms of subjugation. By considering the various ways in which colonial hegemony and patriarchal authority empower, substantiate, and contribute to one another, the article proposes interdependence as a more comprehensive analytical concept that, in addition to accentuating the multiplicity of oppressive structures, illuminates how they interact within a broader, complex matrix of power. The article positions the Palestinian feminist anticolonial struggle in relation to wider debates on Black, transnational, and Third World feminisms to contextualize the movement. The article eventually turns to contemporary examples of intersectional feminist mobilization that exemplifies the nuanced and ever developing nature of the movement.
Structural Trauma
Authors: Ruíz Elena
Published: April 2024

This article addresses the experience of precarity and vulnerability in racialized gender-based violence from a structural perspective. Informed by Indigenous social theory and anticolonial approaches to intergenerational trauma that link settler colonial violence to the modalities of stress-inducing social, institutional, and cultural violences in marginalized women’s lives, the article argues that philosophical failures to understand trauma as a functional, organizational tool of settler colonial violence amplify the impact of traumatic experience on specific populations. It is trauma by design. The article explores this through the history of the concept of trauma and its connection to tragedy. The article gives a brief overview of prominent theories of trauma and contrasts these with the work of Dian Million (Tanana Athabascan) (2013), who highlights functional complicity of settler colonial institutions in shaping accounts of trauma in the west. The piece begins with an important illustration of the kinds of lives and experiences that call for a politicized understanding of trauma in anticolonial feminist theory. It ends by offering an expansive notion of structural trauma that is a methodological pivot for conducting trauma-based gender-based violence research in a decolonial context, which calls for an end to narratives of trauma that are severed from the settler colonial project of Native land dispossession and genocide.
The journey of a generation: advances and promises in the study of primordial germ cell migration
Authors: Barton Lacy J. , Roa-de la Cruz Lorena , Lehmann Ruth , Lin Benjamin
Published: April 2024

The germline provides the genetic and non-genetic information that passes from one generation to the next. Given this important role in species propagation, egg and sperm precursors, called primordial germ cells (PGCs), are one of the first cell types specified during embryogenesis. In fact, PGCs form well before the bipotential somatic gonad is specified. This common feature of germline development necessitates that PGCs migrate through many tissues to reach the somatic gonad. During their journey, PGCs must respond to select environmental cues while ignoring others in a dynamically developing embryo. The complex multi-tissue, combinatorial nature of PGC migration is an excellent model for understanding how cells navigate complex environments in vivo. Here, we discuss recent findings on the migratory path, the somatic cells that shepherd PGCs, the guidance cues somatic cells provide, and the PGC response to these cues to reach the gonad and establish the germline pool for future generations. We end by discussing the fate of wayward PGCs that fail to reach the gonad in diverse species. Collectively, this field is poised to yield important insights into emerging reproductive technologies.
Ποιμαντική προσέγγιση του θρησκευτικού και προσκυνηματικού τουρισμού στην Κρήτη
Authors: Καλαϊτζάκης Εμμανουήλ
Published: April 2024

Αντικείμενο της παρούσας διδακτορικής διατριβής με τίτλο «Ποιμαντική προσέγγιση του Θρησκευτικού και Προσκυνηματικού Τουρισμού στην Κρήτη: δράσεις και προοπτικές» είναι η διερεύνηση και ερμηνεία των απόψεων και αντιλήψεων εκκλησιαστικών φορέων και εμπειρογνωμόνων του τουρισμού αναφορικά με τις δράσεις μέχρι σήμερα, αλλά κυρίως τις προοπτικές ανάπτυξης του θρησκευτικού-προσκυνηματικού τουρισμού στην Κρήτη. Σκοπός της διατριβής είναι να προβληθεί ο Θρησκευτικός Τουρισμός στην Κρήτη, μέσα από ποιμαντικές δράσεις και ενέργειες της Συνοδικής Επιτροπής της Εκκλησίας Κρήτης, αναδεικνύοντας μια ιδιαίτερη περιοχή με πλούσια ιστορική και θρησκευτική κληρονομιά. Η επιστημονική συμβολή και η πρωτοτυπία της έρευνας έγκειται στο γεγονός ότι: 1) Εξετάζονται για πρώτη φορά, μέσω της έρευνας, οι δράσεις θρησκευτικού τουρισμού στην Κρήτη, 2) Εξάγονται σημαντικά συμπεράσματα, μέσω στατιστικών αναλύσεων, τα οποία δίνουν αφορμή συγκρότησης ενός πλαισίου στρατηγικού σχεδιασμού, συμβάλλοντας στην πνευματική και πολιτιστική ανάπτυξη της περιοχής. Η διατριβή περιλαμβάνει τρία μέρη: στο πρώτο επιχειρείται η προσέγγιση του θεωρητικού υπόβαθρου ανάπτυξης του Θρησκευτικού τουρισμού τόσο σε διεθνές, όσο και σε εθνικό επίπεδο. Παρουσιάζεται η περίοδος της πανδημικής κρίσης covid-19 και οι επιπτώσεις στον παγκόσμιο τουρισμό, αλλά και στον θρησκευτικό ειδικότερα. Στο δεύτερο μέρος πραγματοποιείται η παρουσίαση της πολιτιστικής και εκκλησιαστικής ιστορίας της Κρήτης, με παράλληλη αποτύπωση των δράσεων της Συνοδικής Επιτροπής Θρησκευτικού Τουρισμού της Εκκλησίας Κρήτης μέχρι σήμερα. Στο τρίτο μέρος, καταγράφεται ο κύριος στόχος της έρευνας, δηλαδή η αξιοποίηση των ευρημάτων της εμπειρικής έρευνας αναφορικά με την ανάπτυξη του θρησκευτικού τουρισμού στην Κρήτη, με την αποστολή δύο ερωτηματολογίων και τεσσάρων προσωπικών συνεντεύξεων. Η διατριβή ολοκληρώνεται με την καταγραφή των συμπερασμάτων και προτάσεων για την ανάπτυξη του θρησκευτικού τουρισμού στην Κρήτη.
Molecular typing of Staphylococcus aureus isolated from bovine and poultry based on PCR-RFLP of spa gene
Authors: Khoramian B , Razmyar Jamshid
Published: April 2024

Staphylococcus aureus (S. aureus) is considered one of the most important pathogen in bovine and poultry. The aim of the present study was molecular typing of S. aureus strains isolated from bovine mastitis and poultry by PCR-RFLP of spa gene. Fifty eight isolates of staphylococcus aureus were obtained from bovine mastitis (n=30) and poultry (n=28). Isolation identification were done based on conventional methods then confirmed by PCR method. The spa typing was performed by amplification of the spa gene X region. Bsp143I enzyme have been used for digestion of the PCR products and analyzed by electrophoresis on 1.5% gel. Gel Compare II software was used in pattern analysis and isolates with ≥ 70 percent similarities were taken as different types. Dendrogram obtained by RAPD results showed that among the 58 S. aureus strains eight RAPD types were identified (A–H). RAPD type A was more common among isolates from bovine mastitis (11 of 30 samples) and the majority (90%) of bovine isolates clustered in group A, D and E. Cluster B contains most S. aureus isolates of poultry origin. Group B, C and G clustered 82.1% of poultry host isolates, only in two clusters (F and H), some isolates from both the bovine and poultry host clustered together (7/58, 12%). In conclusion, RFLP of spa gene product using Bsp143I enzyme can be applied perfectly for differentiating and typing of S. aureus isolates were recovered from bovine mastitis and poultry infections.
Retrospective Evaluation of Challenging Delayed Union and Non-union Encountered in Dogs: 16 Cases (2012-2018)
Authors: İnal KS , Önyay T , Yılmaz MS , Yardımcı C , Özak A
Published: April 2024

This paper aims to showcase some challenging delayed union and non-union cases, explain their possible causes and the treatment processes they underwent. Most non-union cases included in this study required at least two surgical interventions, and the main reasons for the consecutive interventions were either compromised vasculature of the soft tissues due to extreme trauma or infection. The final successful procedure for cases with excessive soft tissue trauma was external fixator application in most cases. Bone plates were more successful in cases with infection or had poor owner compliance. Minimally invasive external fixator implementation seems to be efficient in preserving the compromised vasculature of the bone while bone plates show better results in cases with localized infection. Harvesting bone grafts from the iliac crest was very practicable, required little time and should be utilized in every possible non-union case given their obvious benefits.
Effect of Some Immunomodulators Use Together with PPR Vaccine on Immune system in Morkaraman Sheep
Authors: Aydın Ö , Aktaş MS
Published: April 2024

In this study, it was aimed to investigate the effects of vitamin C (Vit-C), vitamin D (Vit-D), levamisole (LMS), inactivated parapoxvirus ovis (iPPVO) and corynebacterium cutis lysate (CCL) on the immune system in Morkaraman sheep on which the peste des petitis ruminant (PPR) vaccine was administered. In the Group B (Vit-D + PPR vaccine), in terms of IgG, when compared 0th, 14th, 21st and 28th, the values of the day 7th were determined to be significantly higher (P<0.01). In comparison to overall evaluation based on groups of IgG assay, the Group C (LMS + PPR vaccine) value was determined to be significantly higher than the Group F (PPR vaccine), Group A (Vit-C + PPR vaccine), Group B and Group D (iPPVO + PPR vaccine) values (P<0.01). In terms of IgM, when days among groups are compared, the highest value was determined on the 7th day in the Group A and this value was determined to be significant according to the 7th day Group F, Group E (CCL + PPR vaccine) and Group D values (P<0.01). The application of LMS at the stated dose had positive effects on the immune system due to changes in both IgM and IgG values, and Vit-C application at the stated dose had a partially positive effect only due to changes in IgM value; the administration of Vit-D, iPPVO and CCL at the stated doses did not have any positive effect on the immune system.
Fosfomycin Resistant Enterobacterales IsolatedFrom Chicken Meat in Turkey
Authors: Al S , Dişli HB , Kurekci C
Published: April 2024

This study was conducted to obtain the relative prevalence of fosfomycin resistant (FOSr) Enterobacterales in raw chicken meat samples in Turkey. Samples (n=85) were enriched in non-selective media and transferred to MacConkey agar plates containing FOS and glucose-6-phosphate. As a result, FOSr Enterobacterales isolates were detected by a selective method in 27% of raw chicken meat samples (n=23) and identified as Escherichia coli (21/26), Klebsiella oxytoca (2/26), Escherichia vulneris (1/26), Raoultella terrigena (1/26) and Kluyvera intermedia (1/26). PFGE analysis showed 16 different band patterns in Escherichia spp. isolates (n=22) based on the 85% similarity. The minimum inhibitory concentration for FOS against all isolates was determined to be ≥64 mg/L. In addition, the highest rate of resistance was determined for nalidixic acid (72.7%), ampicillin (68.2%), tetracycline (59.1%), trimethoprim-sulfamethoxazole (54.5%), and chloramphenicol (59.1%) among all Escherichia isolates. PCR screening and sequencing identified the presence of fosA4 and fosA3 genes in ten (47.6%) and seven (33.3%) E. coli isolates, respectively. The fosA3 gene has also appeared in K. intermedia, and R. terrigena isolates.  Only two E. coli isolates were positive for the blaCTX-M-55 gene, whereas the aac(6')-Ib-cr gene was identified in eight E. coli and one K. intermedia isolates. In addition, 19 different replicon types were determined by PCR-based plasmid replicon typing with IncFII (n=20) being the most common and followed by IncI1α (n=10), IncFIIS (n=8), and IncFIB (n=8). We report, to our knowledge, the first evidence on the presence of FOSr Enterobacterales isolates in raw chicken meat samples in Turkey that might be an important reservoir for FOSr organisms to humans.
Effects of dietary α-tocopherol acetate and pomegranate peel extract on growth performance and antioxidative potential and lipid oxidation of meat of broiler
Authors: Sarica Ş , Erinc H , Aydin H
Published: April 2024

The study compared the effects of dietary supplementation of pomegranate peel extract (PPE) alone or in combination with α-tocopherol acetate (TA) on the performance, carcass traits, serum and meat parameters of broilers. The diets included: CONT: a control diet containing 50 mg/kg TA and 4 % flaxseed oil; TA200: the diet supplemented with 200 mg/kg TA to the control diet; PPE100, PPE200 and TA100+PPE100: the diets supplemented with 100 and 200 mg/kg PPE and 100 mg/kg TA+100 mg/kg PPE to the CONT diet. The dietary treatments had no significant effect on growth performance, internal organ weights and carcass yields. The TA200, PPE100, PPE200 and TA100+PPE100 diets significantly reduced the levels of lipid hydroperoxide and total oxidant and significantly increased the antioxidant level of the serum of broilers. The TA200, PPE100, PPE200 and TA100+PPE100 diets significantly increased the contents of total polyunsaturated fatty acids, omega-6 FAs and omega-3 FAs, total phenolic contents, DPPH radical scavenging activity and ferric reducing power, and significantly decreased the concentrations of total saturated fatty acids, total monounsaturated fatty acids, the omega-6:omega-3 ratio and the MDA value of the thigh meat and breast meat compared to the CONT diet. In conclusion, the antioxidant potential and lipid oxidation stability of broiler meat may be improved by supplementing the diet with TA or PPE alone or in combination. Moreover, the antioxidant potential of TA and PPE in combination in the diet was more strong in refrigerated broiler meat enriched with omega-3 PUFAs than that of TA alone.
Evaluation of Some Roughages for Ruminant Nutrition
Authors: Filik AG , Ertürk MM
Published: April 2024

The present study was conducted to determine the feed quality of the plants cultivated for the production of roughage plants at 186 different locations in the Western Mediterranean region, Türkiye. The main material of the study, 11 different roughage sources (Legume and Wheatgrass Forages) or their mixtures were collected from the center and 24 districts of three provinces (Antalya (8), Isparta (10) and Burdur (9)) representing the region. Legumes; alfalfa hay (37), vetch stalk (8), Wheatgrass; barley stalk (28), wheat fodder (2), wheat stalk (49), oat stalk (12), grass hay (18), and mixtures; Barley-oat stalk (11), barley-wheat stalk (5), barley-vetch stalk (13) and vetch-oat stalk (3) mixtures of roughages were the main materials of the study that were determined nutrient contents, feed and energy values.The relative feed value (RFV) and the relative feed quality (RFQ) results of all roughages; vetch stalk 102.42±11.01 & 113.69±13.22, alfalfa hay 99.17±3.03 & 112.41±3.42 for legumes; among the wheats; grass hay 99.50±9.54 & 113.05±11.01, oat stalk 80.84±3.22 & 84.27±2.89, wheat fodder 78.69±1.59 & 83.83±1.59, barley stalk 67.72±3.46 & 69.45±2.56, wheat stalk 48.88±1.97 & 56.97±1.44 and mixed roughages were determined as vetch-oat stalk 100.49±7.12 & 108.18±7.53, barley-vetch stalk 92.58±5.32 & 97.14±5.37, barley-oat stalk 93.21±5.61 & 92.93±4.75 and barley-wheat stalk 81.97±10.73 & 81.36±9.34.Grass hay, vetch stalk and vetch-oat stalk were determined as a third quality roughage according to the RFV. According to RFQ; grass hay, vetch stalk and alfalfa hay are used in feeding heifer, 12 to 18 months beef cow-calf, while vetch-oat stalk is in the class of roughage to be used in feeding heifer are described as 18 to 24 months dry cow. As a result, due to the wrong harvesting time and harvests made with inappropriate equipment, serious nutrient losses occur in roughages until they reach the animal's feed.
Detection of Schmallenberg virus antibody in equine population of Kurdistan province, west of Iran
Authors: Mahdavi S , Salehzadeh M , Montazeri M
Published: April 2024

Schmallenberg virus (SBV) is a newly emerging virus in Simbu group. It is an arbovirus (virus transmitted by arthropods) that causes various complications in the fetus after infecting pregnant animals. The clinical signs of infection to this virus are fever, loss of appetite, reduced milk yield and in some cases, diarrhea and in pregnant animals, congenital malformations in calves, lambs, and kid goats. The aim of current study was to detect of Schmallenberg virus antibody in equine population of Kurdistan province, west of Iran. In this cross sectional study, blood samples from 184 horse in different rural areas of Kurdistan province (located in west of Iran) were analyzed using an indirect ELISA test. Risk factors of each sample such as sex, age, breed, history of abortion and the geographic location were taken into consideration. From a total of 184 serum samples that analyzed for the presence of antibody against SBV, 14.68% (n=27) of total samples was positive for SBV antibody, and 2.17% (n=4) was doubtful, and 83.15% (n=153) was negative. Except for the geographical area, there was no statistically significant difference between risk factors (p>0.05). The positive results of the samples tested in this study may show the high population and activity of Culicoides biting midges, their proper living conditions and illegal entry of infected livestock from other regions, especially from neighboring countries.
Effect of chitosan on microbial, chemical and sensory traitsof minced meat
Authors: Kirella GAK , Mustafa NY , Elrais AM , Ahmed AR
Published: April 2024

Chitosan is a naturally obtained biopolymer and has many applications in the food industry. The effect of chitosan (1% and 3%) added individually to meat on microbiological profile represented by aerobic plate count (APC), Psychrotrophic, mold and yeast counts; chemical (pH, TVB-N & TBA) and sensory traits (color, odor, appearance and consistency) was studied. Thus, the minced meat samples were divided into 3 groups. The first group was prepared as control (Untreated group) and the other two groups were treated with chitosan at ratio of 1% and 3%. The results indicated that chitosan either 1% or 3% had great destructive effect in all tested microbial groups as compared with control group. From chemical point of view, such concentrations of chitosan improved the chemical quality indices of minced meat. Organoleptically, the control samples were decomposed after the 4th day, while the using of chitosan particularly at 3% extended the shelf life of the experimented minced meat till the 9th day. Finally, it can be concluded that chitosan had great effect on the quality and prolong the shelf life of minced meat as it improves the microbiological and chemical as well as sensory characteristics of minced meat
Prevalence of Haemoproteus and Leucocytozoon spp. in Wild Birds in Hatay, Turkey
Authors: Zerek A , Erdem I , Alakuş H , Yaman M , Altuğ ME
Published: April 2024

Hemosporidian parasites that cause infections in poultry and death in susceptible animals show a global distribution. In this distribution, the role of infected wild birds migrating among different regions of the world is great. Hatay, where migratory birds enter Turkey, is an active region in terms of vectors, disease agents and hosts. In this study, it was aimed to investigate the prevalence of Haemoproteus and Leucocytozoon parasites in wild birds of Hatay province by microscopic and molecular methods. Blood samples were taken from a total of 50 wild birds belonging to three orders, eight species. On the microscopic examination, Haemoproteus spp. infection 18% (9/50) and mix infection (Haemoproteus spp. and Leucocytozoon spp. ) 4% (2/50) was detected while on the PCR examination, H. columbae 20% (10/50), Leucocytozoon spp. 2% (1/50), mix infection 4% (2/50) was detected. As a result, haemosporidian parasites were detected approximately on one of every four wild birds (microscopic 22%, molecular 26%).
Vaginal prolapse in ewes
Authors: Christodoulopoulos G
Published: April 2024

Η δημοσίευση αποτελεί κριτική ανασκόπηση της πρόπτωσης κόλπου στις προβατίνες. Περιγράφεται η παθοφυσιολογία, τα προδιαθέτοντα αίτια, η κλινική εικόνα, η θεραπεία και η πρόληψη της παθολογικής αυτής κατάστασης. Επίσης, παρουσιάζεται ένα συνοπτικό πλαίσιο της επιδημιολογικής εικόνας της νόσου στην Ελλάδα, σύμφωνα με τα στοιχεία της Παθολογικής Κλινικής του Τμήματος Κτηνιατρικής, Πανεπιστημίου Θεσσαλίας. Τα στοιχεία δείχνουν ότι η πρόπτωση κόλπου είναι μια σπάνια πάθηση στην ελληνική προβατοτροφία. Τέλος, επισημαίνεται ο σημαντικός ρόλος των υπερυψωμένων ταϊστρών και της χρήσης χοριακής γοναδοτροπίνης στην πρόκληση πρόπτωσης κόλπου στις σύγχρονες εκτροφές προβάτων.
Knowledge and attitudes of health care professionals regarding birth preparedness of women in labour at selected Hospitals in KwaZulu-Natal, South Africa: A qualitative study
Authors: Munyaneza Yvonne , Mhlongo Euphemia Mbali
Published: April 2024

Introduction Low and middle-income countries account for the largest proportion of women’s deaths as a result of pregnancy or childbirth-related complications. The sub-Saharan region is the most affected with approximately 70% (202 000) of maternal deaths between 2000 and 2020. These deaths could have been prevented if expectant mothers were prepared for childbirth. Birth preparedness is perceived as a better strategy that helps attain a substantial reduction in maternal mortality. This is achieved by attending early antenatal classes, receiving skilled care during childbirth, and care and support right after birth. The latest survey on antenatal class attendance conducted in South Africa provides an estimated 30.8% of expectant mothers in public healthcare facilities. Methods Based on the action research method, this study employed a qualitative approach to collect data, as a result, one focus group discussion with five (N=5) participants and two others with six (N=6) participants each (n=6X2=12) and twenty individual interviews were conducted. The study sought to explore and describe the knowledge and attitudes of healthcare professionals regarding the birth preparedness of women in labour at selected Hospitals in Durban KwaZulu-Natal. Results It was found that expectant mothers were unprepared for both labour and postnatal care. The unprepared expectant mothers were uncooperative and made the task of midwives difficult to the extent of endangering the life of their expected newborn and their own. Factors such as finance, heterogeneity, staff shortage, language barrier, lack of family support, lack of interest, cultural beliefs, and confusion caused by various sources of information were responsible for birth unpreparedness. Conclusion Therefore, the synergy between expectant mothers and midwives appears to be an important factor in achieving better birth preparedness.
Rituals as Nature-Based Governance of reciprocity between people and nature
Authors: Herrmann-Pillath Carsten
Published: April 2024

The conventional approach to environmental governance, based on institutions, regulations, and interventions, has utterly failed to stop the current ecological catastrophe. I suggest a radical alternative: Ritual as the core mode of ‘nature-based governance’ (NBG) that enacts deep and comprehensive reciprocity between people and nature. NBG grounds governance mechanisms in embodied more-than-human practices with normative force. I combine a wide range of theoretical resources in social sciences, economics, and philosophy to suggest a general concept of ritual that is inspired by but generalizes over Indigenous thought and is informed by East Asian ideas about ritual as the pivot of social order. However, the radical basis for my argument recognizes ritual as a kind of action that humans and non-humans share as living beings. Therefore, rituals can be activated in workable governance mechanisms to create and sustain communities of multi-species cohabitation. I present a theoretical case study on property as ritual; this relates human property of land with non-human territoriality, acknowledging possession and its ritual performance as a behaviour shared in humans and non-human species. Consequently, rooted in ritual, a more-than-human notion of property emerges that radically differs from modern ideas of the institution of property but converges with Indigenous relational concepts. Equipped with these theoretical insights, I suggest practical applications in the context of NBG of Nature-based solutions. These are: reconceptualizing eco-compensation as a reciprocal ritual of gift-giving, the commoning of ecosystem services of animal populations in wildfire protection, and the formation of urban multi-species communities in urban gardening.
Dynamic Scheduling of Multi-agent Electromechanical Production Lines based on Iterative Algorithms
Authors: Yuan Lulu
Published: April 2024

In response to the optimization scheduling problem in the dyeing production process, the author proposes a hierarchical scheduling method for dyeing vats based on genetic algorithm and multi-agent. In this method, a hierarchical scheduling algorithm is used to decompose production scheduling into static and dynamic strategies. The static strategy adopts a genetic algorithm that supports batch processing of multiple products, non equality of equipment, order delivery time, switching cost, and other constraints: Dynamic strategy is a coordinated dynamic optimization algorithm that uses multi-agent systems to support the running status of dye tanks based on static strategies. By solving the algorithm with multiple constraints and dynamic factors in the production process, the final result of the dyeing tank operation task is obtained. The simulation compared pure genetic algorithm with manual scheduling, and the results showed that the hierarchical dynamic scheduling strategy based on data-driven achieved the goal of optimizing the production scheduling of dyeing vats. The practical application results also demonstrate the feasibility of this method.
Knowledge Graph Analysis for Chronic Diseases Nursing based on Visualization Technology and Literature Big Data
Authors: Duan Siyu , Zhao Yang
Published: April 2024

The use of knowledge graph analysis for chronic disease nursing based on visualization technology and literature big data is an unexplored area of research in this field of study. To uncover research hotspots and developmental trends in the field of chronic disease nursing, and to provide a scholarly reference, we employed mathematical and statistical methods along with CiteSpace literature visualization analysis software for quantitative analysis of extensive literature data from the Web of Science Core Collection. We examined aspects such as publication trends, journals, author collaborations, research institutions, national and regional distributions, keyword co-occurrence, clustering, time zones, emergence, literature co-citations, and more. These analyses identified the current hotspots and future directions for research. Notably, scholars' interest in chronic disease nursing exhibited a consistent upward trajectory. In particular, the field of artificial intelligence technology application in nursing yielded $3,610$ published papers in $141$ journals with more than or equal to $10$ published papers on the topic, accounting for $58.41 \%$ of the total number of published papers in this field of study. Furthermore, the top three publishers were the “Journal of Clinical Nursing,” “Journal of Advanced Nursing,” and “BMC Health Services Research.” Among authors, Hu, Frank B., Willett, Walter C., and Rimm, Eric B., ranked as the top three, and 12 authors had more than 10 publications. The most active research institutions included Harvard University, Harvard Medical School, Brigham & Women’s Hospital, University of California System, University of London, US Department of Veterans Affairs, Veterans Health Administration (VHA), Harvard T. H. Chan School of Public Health, University of Sydney, and the University of Toronto. The United States, Australia, England, China, Canada, Netherlands, Spain, Italy, Sweden, and Germany emerged as the leading countries in terms of research output, while emerging hotspots encompassed topics such as incidence, rheumatoid arthritis, qualitative research, burnout, kidney transplantation, critical illness, COVID-19, Sars-COV-2, public health, and the well-being of medical staff. These findings present valuable insights for prospective research endeavors.
Uncrewed Boat Path Planning Algorithm based on Evolutionary Potential Field Model in Dense Obstacle Environment
Authors: Zheng Wei , Huang Xin
Published: April 2024

In the trajectory planning of crewless ships, the artificial potential field method is commonly used. The results obtained using the classic potential field model for path design are not optimal and cannot fully meet the trajectory design requirements of uncrewed ships. This paper uses the evolutionary potential field model for trajectory planning. The evaluation formula of the potential path is combined with the differential evolution algorithm to evaluate and optimize the potential. A quadratic optimization smoothing algorithm is designed to limit the maximum turning angle of the uncrewed ship. Simulation experiments show that this method is effective and reliable.
Optimization of Unmanned Aerial Vehicle Flight Control Sensor Control System based on Deep Learning Model
Authors: Liu Ji
Published: April 2024

Based on data modelling strategies have created reliable classifier designs for various classes and other neural network applications. The fact that modelling complexity rises with the total number of groups in the system does is one of the approach's major shortcomings. No matter how well it performs, it could make the classifier's design ugly. This article discusses the development of a novel, logic-based Optimum Bayesian Gaussian process (OBGP) classifier to reduce the number of separate empirical models required to accurately detect various fault types in industrial processes. The precision of the OBGP classifier's defining faults also contrasts with the results of other approaches documented in the literature.
Application of Closed-loop Theory in Deep Learning Training Guided by High-strength Intelligent Machinery
Authors: Guo Erfu
Published: April 2024

Artificial intelligence (AI) algorithms and continuous monitoring technologies have the potential to transform the way chronic illnesses are managed. We will also talk about the problems and potential that AI technology presents for CGM in individualised and preventive medicine. Furthermore, we assessed the AHCL system's usefulness in patients with impaired awareness of hypoglycemia (IAH) and those who correctly recognised hypoglycemia symptoms. The participants' ages varied from 37 to 15, and they had received diabetes medication for an average of 20 to 10 years. IAH was seen in 12 individuals (27%) with a Clarke's score of less than 3. Patients with IAH were older than those who did not have IAH. The baseline CGM readings and A1c were the same, but the estimated glomerular filtration rate (eGFR) was lower. Despite prior insulin treatment, the AHCL system resulted in an overall drop in A1c (from 6.9 0.5% to 6.7 0.6%, P 0.001). Only three patients (7%) received Clarke's three scores after six months on the AHCL system, resulting in a 20% absolute risk decrease for IAH (95% confidence interval: 7-32).
Text Emotion Classification System Integrating Visual Communication and Deep Learning for Social Platform
Authors: Liu Yan
Published: April 2024

With the development of modern information technology, social networks have become an im-portant platform for people to express, and at the same time, a large number of texts have been produced. However, the comment text has the characteristics of randomness and colloquialism in the way of expression, and also contains a lot of non-text data. Therefore, manually analyzing the emotional information in the text will consume a lot of time and the accuracy will be limited. To solve emotion classification, this study proposes a knowledge enhanced double loop emotion classification neural network model with attention mechanism. The study first preprocesses text data using a full sentence vector word vector model, then uses convolutional neural networks to recognize emotions in emoticons and emoticons in the text. Finally, the classification results are integrated using algorithms such as a dual loop sentiment classification neural network with pool-ing layers and attention mechanisms, K-nearest neighbors, and decision trees. The final compre-hensive expression recognition and text recognition results are used to obtain the text sentiment classification results. The experimental data shows that the model proposed in this study has an accuracy of 0.947 in the training set test, which is significantly better than other models. In da-tasets A and B, the accuracy of the research design model was 0.958 and 0.924, and the recall was 0.964 and 0.986, respectively. Compared to the baseline method or existing research models, the values of each indicator were significantly higher. The recall rate is the proportion of instances correctly identified as positive by the model to all actual positive instances, which can reflect the emotional classification performance of the research and design model. The higher the value, the better the performance of the model. In practical applications, the positive review rate of this model is above 0.9, which has obvious advantages compared to other models. This study utilizes deep learning techniques to classify sentiment in comment texts, providing reference for the field of text sentiment classification. In the e-commerce industry, it is possible to identify the emotions in user comments on products, further understand the product situation on the platform, and make targeted planning for product reserves, specifications, and so on.
Design and Implementation of Chinese Language Teaching System Based on Virtual Reality Technology
Authors: Yang Tianya , Wu Jialing
Published: April 2024

Traditional Chinese language teaching methods have always had problems, such as a lack of practical opportunities and interest and an inability to provide sufficient language environment and context. Virtual reality technology provides new possibilities to solve these problems. Through in-depth research and analysis, this article designs and develops a Chinese language teaching system based on virtual reality technology. This system utilizes virtual reality technology to create a simulated 3D Chinese language environment, enabling learners to experience interactive experiences firsthand. The system includes speech recognition, natural language processing, and artificial intelligence, enabling real-time language communication and student interaction. This system s design considers students learning needs and interests, allowing them to practice their Chinese application skills in real-world simulated environments. This system has broad prospects in Chinese language education and provides new research and innovation directions for educational institutions and developers.
Text Classification and Cluster Analysis based on Deep Learning and Natural Language Processing
Authors: Huang Hua
Published: April 2024

At present, the commonly used Bag of Words (BOW) expression ignores the semantic information of text and the problems of high dimension and high sparsity of feature extraction. This paper presents a multi-class text representation and classification algorithm. This project is based on the vector expression of keywords and takes the multi-category classification problem as the research object. Then, a hybrid Deep Location network (HDBN) is constructed by combining DBN with Boltzmann (DBM). Then, this paper does a lot of tests on the algorithm and proves the effectiveness of the algorithm. In addition, the 2D visual experiment is carried out with HDBN, and then the high-level text expression based on HDBN is obtained. The expression has strong cohesion and weak coupling.
A Survey on AI-based Parkinson Disease Detection: Taxonomy, Case Study, and Research Challenges
Authors: Desai Shivani , Patel Kaju , Patel Alay , Kumar Jadav Nilesh , Sudeep Tanwar
Published: April 2024

Parkinson Disease (PD) is most common diseases from majority of disease encountered all over the world, with more than 7 million individuals being affected. PD is a type of progressive nervous system disease, causing deterioration in health or function. The timely identification of PD is a significant challenge because it rarely shows symptoms in the early stages. Moreover, it is typically encountered in older people where the symptoms sometimes coincide with age-related issues. Deep Learning (DL) can be integrated into many methodologies in diagnosing PD, such as Magnetic Resonance Imaging (MRI) and Single-Photon Emission Computed Tomography (SPECT). DL algorithms can detect PD based on observing some common symptoms. Moreover, it can also be detected using brain MRI images. So, in this study, we reviewed existing DL algorithms for timely identification of PD. We also have developed a CNN model for the timely identification of PD. We used 3D brain MRI images of PPMI datasets and achieved the 88% accuracy.