bluuebunny/crossref_metadata_2025 huggingface dataset:
La asimilación del krautrock en España: análisis discursivo y musical
Authors: Fellone Ugo
Published: January 2024

El krautrock es un género musical que emerge en la década de los 70 para agrupar a una serie de bandas alemanas como Kraftwerk, Can, Neu!, Faust o Tangerine Dream. Las claras divergencias entre ellas han llevado a una visión multiforme sobre este, que varía en función de los ejemplares que se tomen para concebir esta categoría. En este artículo se analizará el modo en el que este género fue asimilado en España desde sus orígenes a la actualidad. Para ello se adoptará un enfoque flexible sobre lo que constituye dicho objeto de estudio, capaz de reflejar el modo en el que los marcadores del mismo se han ido reconsiderando a lo largo del tiempo. Con este en mente se procederá a realizar un análisis discursivo de la prensa y, en base a este, un análisis interobjetivo de las propuestas nacionales que se asimilan al género. Esto permitirá trazar una panorámica que va desde la música electrónica de los 70 a la neopsicodelia, pasando por el tecno pop y el indie.
Development of a 1-DOF Compliant Mechanism to Support Rotation
Authors: Nguyen Phuc Khanh , Le Hai Nhan , Pham Minh Tuan
Published: January 2024

This paper presents a design of the 1 degree-of-freedom (DOF) compliant mechanism to support rotation, which can be used as the compliant bearing in rotary motor. With the simple idea of replacing the traditional bearings with the compliant counterparts, the compliant motor built by the developed mechanism is capable of creating frictionless and repeatable rotations for precise applications. The compliant bearing is synthesized based on a specific connection of beam-type flexures; its stiffness characteristic is analytically determined in this paper. Finite element analysis (FEA) is then used to verify the analytical results. The correctness of the bearing design is demonstrated through the small deviation between the analytical and FEA methods. With the simple structure of this compliant mechanism, a low-cost flexure-based bearing can be achieved to support rotary motions in precision devices such as actuators, sensors, positioners, etc.
Design and Simulation of a Low-Cost Frictionless Linear Motor
Authors: Le Hai Nhan , Nguyen Phuc Khanh , Pham Minh Tuan
Published: January 2024

This paper presents the development of a low-cost linear motor with precise – frictionless motion. The motor is constructed by two main modules: Compliant bearing and voice coil actuator (VCA). The mechanical property of the bearing is determined by its 6×6 stiffness matrix which is formulated based on the relationships between beam-type flexure elements within a compliant mechanism. To run the motor, a VCA is specifically designed to fit the desired dimensions and able to create enough input force for compliant bearings to reach their largest elastic deformation. Subsequently, the finite-element-analysis (FEA) is conducted to evaluate the performance of the motor through the simulations of bearing deformation and electromagnetic force from the VCA. The good agreement between analytical and FEA results demonstrates the correctness of the proposed design. With the low-cost due to the simple structure and the ability to produce frictionless motion, the motor presented in this paper can be considered as a potential candidate for the development of various applications in precision engineering field.
Just-in-Case Inventory Management under Partial Supply Disruptions
Authors: Karot Thanathorn , Pornsing Choosak
Published: January 2024

This study develops a mathematical model to optimize the partial delivery components allocation. This is one of a tactic of planning that be needed in a supply disruption situation. The new model considers the secondary supplier as a buffer. The order is triggered as soon as the primary supplier is disrupted. However, the component price is usually higher than buying from the primary supplier. Thus, we must investigate the model’s performance compared to existing allocation schemes. The mathematical model is linear programming and coded in AMPL language. The real-industrial data were excerpted and tested on a cloud computing service. The result was compared in terms of the total cost with the conventional value-at-risk policy, fair allocation scheme, and the company’s practice, the greedy procedure. The proposed method yields a lower total cost compared to other allocation schemes.
Impact Assessment of Fall armyworm (Spodoptera frugiperda J.E. Smith) Damage and Control on Smallholder Maize Fields of Anuradhapura District, Sri Lanka
Authors: Hettiarachchi D. K. , Hearth H. H. M. I. D. , Weerakoon A. V. , Prasad R. P. U. , Senarathne S. M. M. T. , Herath K. M. R. K. T. , Sandaruwan M. K. D. D. , Wijegunawardhana N. D. A. D. , Udayanga N. W. B. A. L.
Published: January 2024

Purpose: Limited information is available on Fall Armyworm (FAW) and its agricultural burden in Sri Lanka. This is the first study conducted aimed at evaluating the level of economic damage caused by FAW in maize fields in the Anuradhapura district during the Maha season 2019-2020, along with the economic impacts on small-scale farmers.Research Method: Five small-scale maize farming sites were selected, along with another maize-cultivated area as the control site. General farming practices were allowed and observed in the sampling sites, while the maize-cultivation at the control site was not treated with any pest management practices. A total of 150 maize plants were monitored. The percentage of damage was calculated for each study site, and the expenditures from the land preparation to harvesting were recorded, along with the final yield. Findings: The highest percentage of mean FAW- damaged plants was reported during the fifth week as 28.5% in farmer fields, while the control site reported a >80% rate of damaged plants. The average dry yield received from the investigated sites was 1,162.2 kg/acre and the average income was Rs. 75,543, along with an average profit of Rs. 31,051 per acre. Meanwhile, the control plots yielded only 224.8 kg of maize/acre. Research Limitation: Collecting information from farmer’s side and unexpected attacks from elephants on the selected corn fields has been the biggest challenge. Originality/value: The study highlights the need for sustainable Integrated Pest Management (IPM) options, along with due attention to biological control methods in controlling FAW.
Successful Qualitative Research in Agribusiness Management: Scope, Concepts and Steps
Authors: Rosairo H. S. R.
Published: January 2024

No abstract available
Stock Health of Penaeid Shrimps in Sri Lanka: a Comprehensive Molecular-Based Study on Seven Diseases Found in the Asian Region
Authors: Athula J. A. , Walpita C. N. , Ruwandeepika H. A. D. , Thilakasiri T. N. S. , Dayananda E. G. R. , Chandraratne P.N.
Published: January 2024

Purpose: Although shrimp aquaculture in Sri Lanka has mainly been plagued by recurrent outbreaks of White Spot Syndrome Virus (WSSV), recent symptomatic and analytical field data of shrimps were incoherent with typical WSSV infections. As transboundary infection of new diseases is not uncommon in world shrimp aquaculture, the possibility of new diseases established in the country surfaced. Hence, the present study was aimed at evaluating the stock health of shrimps in Sri Lanka for additional six diseases commonly available in the Asian region, namely   Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV), Infectious Myonecrosis Virus (IMNV), Taura Syndrome Virus (TSV), Yellow Head Virus (YHV), Acute Hepatopancreatic Necrosis (AHPND) and Necrotizing Hepatopancreatitis Bacterium (NHPB). Research method: Sampling was performed using broodstocks, postlarvae, cultured Penaeus monodon, wild P. semisulcatus, P. indicus and P. monodon from different locations and broodstock collecting areas in the country. Other crustacean species were also collected as possible carrier species. The presence of pathogenic organisms was identified by Polymerase Chain Reaction using respective IQ 2000TM test kits and a total of 2060 PCR tests were conducted. Findings: Of all the samples tested, no samples were positive for IMNV, TSV, YHV, AHPND and NHPB. However, confirmatory evidence was found in Sri Lanka for the presence of IHHNV with the prevalence of 31.3% in broodstock samples, 24.07% in hatchery-produced postlarvae and 18.03% in cultured shrimps. WSSV was also recorded with a prevalence of 10.34% in broodstock samples and 55.56% in cultured shrimp samples collected. None of the wild collected samples was positive for any of the tested diseases.  Value: Reinstating the presence of WSSV in the Sri Lankan shrimp industry, provides confirmatory evidence of the presence of IHHNV in the country, highlighting the possibility of the emergence of new diseases in shrimp farming in Sri Lanka. Also, commonly suggested disease carriers seem to be not the major cause of disease spread during the sampling time. This study, therefore, provides much-needed information about the stock health of shrimps in Sri Lanka.
Application of Global Navigation Satellite System (GNSS) Based Mobile Tracking to Improve the Geo-traceability of Mango Supply Chain: A Case Study
Authors: Samarasinghe Y. M. P. , Dissanayake C. A. K. , Herath M. M.
Published: January 2024

Purpose: Location tracing of agricultural supply chains is vital to ensure food safety. Mango supply chain in Sri Lanka involves many intermediaries and lacks traceability. GNSS based mobile tracking is a potential technique to assure quality of fresh produce through improved geo-traceability. Therefore, this study aimed to identify the feasibility of mobile tracking to enhance the geo-traceability of ‘Karthakolomban’ mango. Research Method: Supply chains were chosen based on mango collectors in Kurunegala District. Movements of mango were traced by real-time tracking of supply chain actors using the software developed to obtain GPS location of mobile phones. Feasibility for mobile tracking was assessed using, location data, origin, route, speed, unnecessary delays and movements. Findings: Omaragolla mango supply chain was highly dynamic, where most of the actors, routes and origins were varied without pre-planning. Only 67% of considered supply chains were successfully tracked. Rest was unsuccessful due to lack of technical knowhow of supply chain actors and signal failures. Unnecessary movements yielding 13% of additional distance and cost were observed in 25% of the supply chains. Mobile tracking enabled the identification of movements of mango, where it can be used for pre-planning, monitoring of the routes of actors and ultimately to ensure the geo-traceability. Research limitation: Even though geo-traceability improves the traceability of the fruit supply chain, there are other methods to ensure the traceability. Therefore, should be tested separately as well as coupled with the current approach. Originality/value: Findings of the case study can be guided to implement mobile tacking for any fixed fruits and vegetables supply chain to improve the geo-traceability aiming the food safety of the country.
The Paradigm Shift of Agricultural Extension from Technology Transfer Towards Participatory Approaches
Authors: Wijeratne M. , De Silva W. N.
Published: January 2024

Purpose: Different technology transfer mechanisms are used to disseminate innovative agricultural technologies. The extension approaches based on the top-down transfer of technology were dominated in the past. That paradigm could not achieve reasonable benefits to many users but the resource-rich clientele reaped the benefits. Therefore, new concepts and approaches were warranted. The paper describes the outcomes of the paradigm shift of agricultural extension from technology transfer to participatory technologies..Research Method: The paper contains the information collected from published literature on technology transfer efforts, global experience in Participatory Rural Appraisal applications, and the research findings from participatory rural appraisal sessions conducted in Sri Lanka.Findings: The critical issue of technology transfer models was insufficient attention granted to incorporate.the participation of grassroots-level clientele. Hence, real community needs were omitted. The concept of Participatory Rural Appraisal evolved as an alternative scenario and was implemented with promising results. The Participatory Rural Appraisal is a bottom-up approach, that incorporates local knowledge and community participation, uses simple technology, requires low cost, and could be applied in rural areas without complex apparatus. Participants have a great opportunity to express their actual needs. Hence, a valid plan can be designed and the community will participate in the following stages of the planning cycle. This study reviews the Participatory Rural Appraisal experience worldwide and the paradigm shift taken place in technology transfer from a top-down approach to participatory methods.
Waste handling model based on local function
Authors: Widiyanto Agnes
Published: January 2024

The population of Banyumas Regency is around 1,620,918 people in 2018, waste production in Banyumas Regency is large and increases from year to year. Waste production in the district reaches 1,100 m3 per day. The purpose of this study is to evaluate the development model of waste management through improving the local wisdom system. The method used in this study is a qualitative research method to understand the phenomena experienced by research subjects holistically. This model consists of data collection, data reduction, data presentation, and withdrawal. Research instruments used: Researchers as the main instrument (human instrument), interview guidelines, Check list and record tool. Data validity using the source triangulation technique carried out by crossing the answer check between informants. The local wisdom model in the community is adjusted to the environmental conditions and characteristics of the community.
Changes in left ventricular systolic function after transcatheter patent ductus arteriosus closure in premature infants
Authors: Karunanandaa Aravinth , Paolillo Joseph , Cook Amanda , Swayampakala Kamala , Schwartz Matthew C.
Published: January 2024

Background:

Changes in left ventricular (LV) systolic function have not been well described in premature neonates after transcatheter patent ductus arteriosus (PDA) closure.

Methods and Results:

We retrospectively identified all premature neonates < 3 kg who underwent a transcatheter PDA closure at our center between January 1 2015 and January 31, 2021. LV indices before and after closure were extracted and an analysis was performed. Overall, 23 neonates were included with a mean procedural weight of 1894 ± 622 g. At 24 h after closure, the median left ventricular ejection fraction (LVEF) (66% interquartile range [IQR] 12% vs. 61% IQR 12, P< 0.001) and median LV end-diastolic dimension z-score (3.3 IQR 1.8 vs. 1.4 IQR 2.6, P < 0.001) both decreased and 5 (22%) neonates had an LVEF <55%. Patients who had an LVEF <55% at 24 h had a higher preprocedure LV end-diastolic dimension z-score (4.2 IQR 1.2 vs. 2.8 IQR 1.6, P = 0.01), a higher preprocedure LV end-diastolic volume (19 mL IQR 4 mL vs. 11 mL IQR 11, P = 0.03), a higher birth weight (940 g IQR 100 g vs. 760 g IQR 140, P = 0.04), and were more likely to receive intravenous calcium during the procedure (60% vs. 11%, P = 0.04) compared to those with an LVEF ≥55% at 24 h after closure. Of those with LVEF <55% at 24 h, all normalized before discharge.

Conclusion:

In preterm neonates who underwent successful transcatheter PDA closure, 23% developed abnormal LVEF after closure and those with significant LV dilation before the procedure were at increased risk for the development of LVEF <55% after closure.
Novel use of the double kissing crush technique to stent complex pulmonary artery stenosis in a child with Alagille syndrome
Authors: Strah Danielle D. , Hellinger Riley D. , Lee Kwan S. , Seckeler Michael D.
Published: January 2024

Coronary bifurcation lesions and treatment with two-stent techniques have been developed, including the double kissing (DK) crush technique. The use of this technique in children or noncoronary vessels, including pulmonary arteries, has not been described. We present a 12-year-old girl with Alagille syndrome, a ventricular septal defect (VSD), and complex bilateral pulmonary artery (PA) stenoses who is status post six catheterizations for PA angioplasty and stenting to improve her marked right ventricular hypertension. With collaboration between the congenital and structural teams, she successfully underwent the DK crush technique for a complex lesion in her PA. This improved pulmonary flow and allowed for successful surgical VSD closure.
Three-dimensional/four-dimensional spatiotemporal image correlation morphology of the ductus arteriosus in fetuses with pulmonary atresia undergoing neonatal ductal stenting
Authors: Karapurkar Sonia , Gurav Aishwarya , Sudhakar Abish , Sasikumar Navaneetha , Kumar Raman Krishna , Vaidyanathan Balu
Published: January 2024

Background:

The value of prenatal identification of morphology of ductus arteriosus in fetuses with congenital heart defects (CHD) with pulmonary atresia and duct-dependent pulmonary circulation (DDPC) in planning neonatal ductal stenting procedure is untested. The aim of the study is to analyze the utility of three-dimensional/four-dimensional (3D/4D) spatiotemporal image correlation (STIC) fetal echocardiography in delineating the morphology of ductus arteriosus in fetuses with DDPC undergoing neonatal ductal stenting.

Methods:

In this retrospective study (2017–22), prenatal imaging of pulmonary artery (PA) anatomy, aortic arch sidedness, and morphology of ductus arteriosus (ductal origin was classified as vertical/horizontal and ductal course as tortuous/straight) was done using 3D/4D STIC imaging and volume datasets. Prenatal findings were correlated with angiographic findings during stenting and the degree of agreement was calculated.

Results:

We included 27 fetuses with a prenatal diagnosis of CHD with DDPC who underwent neonatal ductal stenting. The accuracy of prenatal assessment of PA anatomy, branch PA stenosis, and arch sidedness was 100%, 92.6%, and 88.9%, respectively. The accuracy of prenatal assessment of ductal origin and course, compared with angiography, was 85.2% and 88.9%, respectively. Prenatal imaging had a diagnostic accuracy of 100% for vertical straight and horizontal tortuous ducts, 84.6% for vertical tortuous, and 67% for horizontal straight ducts. Duct stenting was successful in 25 (92.6%) babies; two died after the procedure from stent occlusion.

Conclusion:

Fetal echocardiography using 3D/4D STIC imaging enables accurate delineation of the morphology of ductus arteriosus in fetuses with DDPC, thereby aiding parental counseling and planning neonatal ductal stenting.
Gliosarcoma in a patient with triple-negative breast cancer: A case report
Authors: Zhao Guojie , Huang Wenxian , Lian Haiwei
Published: January 2024

Gliosarcoma is a rare subtype of glioblastoma with the histological features of both glioblastoma and soft-tissue sarcoma. Triple-negative breast cancer (TNBC) is a special type of breast cancer that is different from other breast cancers. It is characterized by strong invasiveness, high recurrence rate, and poor prognosis. The concurrent occurrence of gliosarcoma and TNBC was rarely seen and reported. A 63-year-old woman with a history of TNBC was found to have an intracranial mass due to headache. Intracranial tumor resection surgery was undergone, and histopathological examination postoperation revealed gliosarcoma. After craniotomy, the patient underwent standard radiotherapy and chemotherapy. Postoperative follow-up observation showed no obvious recurrence of either tumor. In conclusion, gliosarcoma and TNBC are tumors with poor prognosis. It is rare to encounter two types of malignant tumors in the same patient. When we encounter intracranial space-occupying patients with a history of malignant tumors, we should first consider tumor metastasis. When excluding the possibility of cancer metastasis, the possibility of two primary tumors should be considered.
Role of Metabolic Surgery in Polycystic Ovarian Disease with Obesity in the Asian Population: A Systematic Narrative Literature Review
Authors: Veetil Deepa Kizhakke , Wadhawan Randeep
Published: January 2024

Polycystic ovarian syndrome is becoming more prevalent (up to 13%) among young women of reproductive age with obesity. Lifestyle modifications remain the first line of management of obesity in these individuals. Bariatric and metabolic surgery (BMS) has a role in achieving significant and sustained weight loss in cases where lifestyle modifications alone are not effective. A detailed systematic narrative literature review was undertaken to understand the role of BMS in this subset of individuals to help recommend management strategies in women with polycystic ovarian syndrome, obesity, and infertility among the Asian population. BMS has been documented to correct menstrual irregularities (from 81% to 15%, odds ratio = 0.03, 95% confidence interval: 0.01–0.08), hirsutism from 71% to 38% (odds ratio = 0.21, 95% confidence interval: 0.06–0.74), and endocrine abnormalities associated with polycystic ovarian syndrome. Improvement in infertility (high incidence of nearly 58%) was noted with normalization of the body mass index (BMI) postsurgery in some studies. Larger sample size studies with a longer follow-up are required to enable the development of guidelines on the role of BMS in the improvement of infertility in patients with polycystic ovarian syndrome. The superiority of one type of technique of BMS has not been demonstrated for improving the fertility rates (P = 0.9) among the different types of surgical procedures and pregnancy rates. Different regions of the world will need different BMI cutoffs while managing the endocrine abnormalities, menstrual irregularities, and associated infertility of women with polycystic ovarian syndrome and obesity. This systematic narrative literature review is an attempt to study the relevant literature in this field with a special focus on the Asian population.
Calotropis-induced toxic keratitis managed with teleophthalmology services in rural India
Authors: Nibandhe Ananya Sudhir , Murthy Somasheila , Rathi Varsha M.
Published: January 2024

A female laborer presented with acute diminution of vision in her right eye following accidental injury with a sap of Calotropis flower. The patient was diagnosed with Calotropis-mediated endothelial toxicity based on clinical findings and started on a course of topical steroids. The patient had to face several logistical challenges such as distance of travel, loss of daily wages, and nonavailability of a family member to accompany her. She was then followed up with sequential imaging of the cornea utilizing the teleophthalmology services of our institute at the rural vision center located in the vicinity of patient’s house. Seven days later, the cornea had completely cleared with improvement in the best-corrected visual acuity. This case demonstrates Calotropis-induced endothelial toxicity which is very common in remote rural areas and its effective management using the mobile or tablet-based teleophthalmology application of our institute’s three-tier eyecare pyramid model.
Conjunctival lymphangiectasia: An atypical ocular finding and management approach
Authors: Ambani Rushil Hemang , Purohit Dipali M.
Published: January 2024

Conjunctival lymphangiectasia is a rare ocular condition characterized by dilated lymphatic vessels in the conjunctiva. Patients may experience symptoms such as foreign-body sensation, congestion, and irritation or may remain asymptomatic. We present the case of a 61-year-old female who presented with a painless, elevated lesion on her right eye’s conjunctiva. The diagnosis of conjunctival lymphangiectasia was confirmed through clinical examination and histopathological analysis. This case report highlights this uncommon ocular disorder’s clinical features, diagnostic approach, and management.
Optical coherence tomography angiography as a diagnostic tool to detect non-exudative neovascular membranes upon retinal pigmented epithelium irregularities and the shallow irregular retinal pigmented epithelium elevation sign
Authors: Miranda Vítor , Vaz-Pereira Sara , Duarte Lilianne
Published: January 2024

Purpose:

To highlight the high positive predictive value of the retinal pigmentary epithelium (RPE) irregularity and the shallow irregular retinal pigmented epithelium elevation (SIRE) sign in identifying nonexudative neovascular membranes and underscore the usefulness of these signs in clinical practice.

Methods:

Retrospective case series analysis conducted in the medical retina clinic in one center.

Results:

Seven cases of patients with nonexudative neovascular membranes confirmed with optical coherence tomography angiography (OCTA) imaging where RPE irregularity and/or SIRE sign had been described on standard structural optical coherence tomography (OCT).

Conclusion:

In this case series, we present a variety of phenotypes, some with apparently benign alterations, in which NE-MNV has been identified. Our findings suggest that OCTA screening for neovascular membranes is a useful tool for any patient presenting with irregular RPE and SIRE signal in their structural OCT image.
Prevalence of eye injury in India: A meta-analysis
Authors: Shah Mehul , Shah Shreya
Published: January 2024

Prevalence of ocular trauma is debatable in India due to the inconsistent findings of different studies from diverse regions. Moreover, few cross-sectional studies on this topic are available. We searched for relevant published Indian studies in PubMed and screened for duplicates. We selected 28 studies and analyzed information regarding study participants and demographics. The mean prevalence derived from all cross-sectional studies were utilized for the entire Indian population. Out Of 10997 articles, we found 2134 studies after the removal of duplicates. Of the 121 eligible studies, we selected 28 studies. The prevalence was 3.75% when we applied the data to the Indian population, and 37,33,333 individuals sustained ocular injury, which resulted in blindness or visual impairment. Ocular injuries mainly contribute to impaired vision and blindness. Preventive strategies should be developed to lower ocular injury occurrence.
Orbital exenteration: Our experience at a tertiary cancer center
Authors: Patil Sangeeta S. , Kagde Sarita Arun , Jadhav Vikrant Madhukar
Published: January 2024

Background:

Orbital exenteration (OE) is a radical procedure, involving the removal of all orbital contents including orbital fat, globe, conjunctival sac, and part or all of eyelids. It is indicated for malignant tumors of orbital structures not treatable with simple excision or radiotherapy. Lid-sparing OE can be used in cases where the orbital tumors does not involve the eyelids.

Aim:

The aim of the study is to describe our experience of OE at a tertiary cancer center over 5 years.

Materials and Methods:

This is a retrospective study. Surgical records of patients, who underwent OE from June 2017 to June 2022, were examined to determine demographics, indications, site of lesions, histological diagnosis, any previous surgery, neoadjunctive and adjunctive treatments, complications, recurrences, and Computed tomography scan/magnetic resonance imaging findings.

Settings and Design:

This is a descriptive, observational, retrospective study.

Statistical Method:

Data were entered in Microsoft Excel version 2023 and analyzed in the form of numbers and percentages.

Results:

A total of 12 cases were included in the study. The mean age of patients was 64.33 years. Presenting symptoms were protrusion of an eyeball in four cases, ocular surface growth in four, decreased vision in one, and eyelid mass in three cases. Three cases were of basal cell carcinoma (25%), one of choroidal melanoma (8.33%), five of invasive squamous cell carcinoma (SCC) (41.67%), two of sebaceous gland carcinoma (16.67%), and one of recurrent optic nerve schwannoma (8.33%). The site of origin of tumor was conjunctiva (n = 5) in 41.67%, eyelid (n = 5) in 41.67%, globe in (n = 1) 8.33%, and orbit in (n = 1) 8.33% of cases. Surgical margins were free of tumor in 10 patients, but positive in two patients. The mean duration of follow-up was 8.08 months with a range of 2–33 months.

Conclusions:

The most common indication for OE is SCC of conjunctiva. OE is still indicated in some cases of orbital tumors, although recent advances in earlier diagnosis and alternative conservative treatment options are available.
Evaluation of Surface Changes of Stainless Steel Miniplates and Screws Following Retrieval from Maxillofacial Trauma and Orthognathic Surgery Patients: A Comparative Study
Authors: Singh Himanshu P. , Kataria Prerna , Shukla Ruchira , Peswani Khushboo Chhabaria , Kharkar Viraj , Gaikwad Shashank S. , Makkad Ramanpal S.
Published: January 2024

ABSTRACT

Background:

This study examines the surface changes of stainless steel miniplates and screws after their retrieval from patients who underwent maxillofacial trauma and orthognathic surgery. The assessment focuses on comparing the alterations in these materials, aiming to contribute to our understanding of their durability and performance in clinical settings

Materials and Methods:

A total of 60 stainless steel miniplates and screws were collected from 30 patients who had previously undergone either maxillofacial trauma or orthognathic surgery. The retrieved miniplates and screws were carefully removed from the patients and cleaned to remove any organic debris. Each specimen was then examined for surface changes. Surface changes were evaluated using visual inspection, scanning electron microscopy (SEM), and roughness measurements. Visual inspection provided a qualitative assessment, while SEM allowed for a more detailed examination of the surfaces. Roughness measurements were conducted using a profilometer.

Results:

Visual inspection revealed varying degrees of surface changes in the retrieved miniplates and screws. These changes included scratches, corrosion, and discoloration. SEM analysis confirmed the presence of surface alterations, with some specimens showing more significant damage, such as pitting and cracks. Roughness measurements indicated an increase in surface roughness for both miniplates and screws, suggesting that the surfaces had become less smooth

Conclusion:

This comparative study of stainless steel miniplates and screws retrieved from maxillofacial trauma and orthognathic surgery patients demonstrated that these materials undergo surface changes over time.
Dermatoglyphic Pattern Assessment in Smokeless Tobacco Users in the North Gujarat Population: A Comparative Case–Control Study
Authors: Jaideepa  , Mehta Dhaval N. , Gubrellay Priyanka , Soni Avani , Shah Shreeja H. , Anand Prachi , Kumar Chandan
Published: January 2024

ABSTRACT

Introduction:

Dermatoglyphic patterns identify genetic conditions as they develop early in pregnancy and remain constant throughout life. Multiple studies suggest that there is a genetic link to smokeless tobacco use. So, this study has been conducted to assess dermatoglyphic patterns among smokeless tobacco users in the North Gujarat population with nonconsumers

Materials and Methods:

A total of 500 cases were investigated for “ATD” angle and patterns, of which 250 subjects of smokeless tobacco are assessed for statistical significance via comparing them to 250 subjects of nonconsumers. Student’s t-test was employed for evaluating quantitative factors (also known as the “ATD” angle), and the Chi-square test was used to analyze qualitative variables (also known as fingerprint patterns). A P value of 0.05 or less was considered significant.

Results:

In this study, the angle “ATD” was found to be reduced in both the palms of males (P 0.001) and females (P 0.001) when compared to controls, which was statistically highly significant. In our study, we discovered that the number of whorls and arches is lower in male cases as compared to male controls, which is highly significant (P = 0.020 and P = 0.010). Male cases had a greater number of loops than male controls, which was statistically significantly greater (P 0.001)

Conclusion:

In this latest study, an association between smokeless tobacco users and palmar dermatoglyphics was identified. Though dermatoglyphics solely is unable to identify individuals who abuse alcohol and/or cigarette packs, the results of this research could serve to further develop diagnostic guidelines.
Functional and Psychological Preparedness of Athletes Post ACL Repair
Authors: Almansour Ahmed M.
Published: January 2024

ABSTRACT

Objective:

This study was conducted to see whether those who had anterior cruciate ligament (ACL) reconstructions on their dominant legs performed better than those who had them on their nondominant legs 1–10 years after the surgery.

Materials and Methods:

An examination of people who sustained injuries to their dominant (n = 25) and nondominant (n = 25) legs between 1 and 10 years after ACL repair was undertaken in a cross-sectional research with 50 people aged 20–38. Everyone takes the fear avoidance belief questionnaire for physical activity (FABQ-PA), the lower extremity functional scale (LEFS), and the anterior cruciate ligament return to sport after injury (ACL-RSI) survey.

Results:

There was no statistically significant difference between the groups on the ACL-RSI, LEFS, and FABQ-PA (U = 254, P = 0.26; U = 314.4, P = 0.95; and U = 279.4, P = 0.53 correspondingly).

Conclusion:

Functional performance and patient mental health should be evaluated 1–10 years after ACL surgery. However, there is no correlation between which leg was the dominant one and the results. As a result, it has been shown that both dominant and nondominant leg injuries heal similarly over time. Future studies should examine additional variables that affect healing and return-to-sport results to improve rehabilitation and optimize long-term functional outcomes for individuals after ACL repair.
Apprehension of Paraplegia after Undergoing Spinal Anesthesia in the Central Region Population of Saudi Arabia: A Cross-Sectional Study
Authors: Aldobekhi Faris Suleiman Saleh , Almutairi Manal M. , Alanazi Mohammed H. , Aldawsari Badah M. , Almutairi Sarah S. , Alenazi Abdulkarim K. , Binmuhareb Abdulazizludba N. , Alfadhil Ghadi A. , Alaoufi Shouq Y. , Alqahtani Abdullah O.
Published: January 2024

ABSTRACT

Aim:

The aim of the present study was to determine the prevalence of paraplegia-related fear in spinal anesthesia among the general population in the central region of Saudi Arabia.

Materials and Methods:

A total of 371 participants were given a pretested, precoded, questionnaire was used to collect data to assess the prevalence of fear of paraplegia in spinal anesthesia. The questionnaire contained questions to assess variables like the extent of fear, causes, gender preponderance, any false information about paraplegia in spinal anesthesia, and complications experienced after receiving spinal anesthesia.

Results:

It was noted that 80.1% of the respondents were familiar with the term spinal/regional/epidural anesthesia. Forty one point eight percent of the respondents their reference of knowledge about regional anesthesia was family of friends. Thirteen point nine percent of the responses were paralysis, 8.2% of the responses were feeling of pain during the operation, and 7.9% of the responses were nausea or vomiting.

Conclusion:

The present study revealed that the participants exhibited a certain degree of apprehension stemming from their inadequate understanding and awareness regarding spinal anesthesia.
Prevalence and Perception of HPV Vaccination Among Health Science Students in Saudi Arabia
Authors: Alfhaid Fahad , Alzahrani Mansour Khater , Aljulifi Mohammed Zaid , Alrohaimi Yousef , Alawlah Maram Nasser , AlMutairi Fatimah Lailay M. , Alkahtani Sara Mohammad H. , Almousa Moudi Abdulrahman , Alrashidi Shahad Namash
Published: January 2024

ABSTRACT

Objective:

This study was carried out to assess the prevalence and perception of human papilloma virus (HPV) vaccination in health science students in Majmaah University, Saudi Arabia.

Methodology:

A descriptive cross-sectional study was conducted at different health science colleges of Majmaah University on female students. The knowledge of the participants regarding HPV was assessed using a pre-tested questionnaire. The history of vaccination of these female participants was also enquired.

Results:

More than three-fifth of the participants had heard about HPV. Of these, 83 participants, 59 (71.1%), were aware that it is a disease of women and how to diagnose it. Most participants (86.7%) knew that it can cause cervical cancer, while only 57.8% knew it could be asymptomatic. There were 18% of such participants who thought that HPV and human immunodeficiency virus are the same and that there is no vaccine for the prevention of HPV. Only 14.5% (n = 12) were vaccinated against HPV.

Conclusion:

A clear gap between knowledge and practice of HPV vaccination was observed, and health education should be planned to educate health professionals to avoid misconceptions.
Los neuroderechos y su regulación
Authors: Arellano Wilma
Published: January 2024

En este artículo se tratará brevemente el concepto de neuroderechos. Éstos han sido perfilados, conceptualizados, dotados de contenido o reconocidos en España, la Unión Europea y otras latitudes. Aclaremos, sin embargo, que fundamentalmente se habla de derechos que se están discutiendo y sobre los que se está solicitando protección, pero las acciones en este sentido son más o menos recientes, tanto desde la perspectiva jurídica, como la de la ética y la de las neurociencias.

En este sentido, cabe señalar que hay desarrollos de tipo más bien normativo y otros más de tipo declarativo (o soft law) de los que hablaremos más adelante y cuya diferencia será explicada oportunamente. Se abordarán los elementos introductorios y los antecedentes en torno a los neuroderechos, dada la cada vez más notable aproximación a una nueva dimensión no sólo de los derechos fundamentales, sino también de los derechos digitales, entre los cuales se encuentran los derechos frente al empleo de las neurotecnologías y los derechos ante el uso de la Inteligencia Artificial (IA), abordados por la Carta de Derechos Digitales de España (sección 5, apartados XXI al XXVI).
De nuevo sobre la persona robótica
Authors: Barrio Moises
Published: January 2024

La entrada de la robótica y de la inteligencia artificial está alcanzando al Derecho. Surgen nuevos conceptos, hay replanteamiento de los viejos paradigmas jurídicos y es imprescindible actualizar la regulación jurídica existente. En este estudio se aborda una de las cuestiones nucleares que afectan al Derecho en su conjunto: la noción de persona electrónica robótica y las consecuencias jurídicas derivadas de su actuación, su estatuto jurídico en el ordenamiento jurídico, sus atributos y las diferencias con respecto a la persona física.
How many stones can we place in empty baskets?
Authors: Lupu Cezar
Published: January 2024

In this short note, we derive a precise estimate on the number of stones which can be placed in empty baskets. Although the problem posed is combinatorial in nature, the precise estimate involves some techniques arising in analytic number theory such as average sum of arithmetic functions.
Differential graded algebras for trivalent plane graphs and their representations
Authors: Sackel Kevin
Published: January 2024

To any trivalent plane graph embedded in the sphere Casals and Murphy associate a differential graded algebra (dg-algebra), in which the underlying graded algebra is free associative over a commutative ring. Our first result is the construction of a generalization of the Casals–Murphy dg-algebra to non-commutative coefficients, for which we prove various functoriality properties not previously verified in the commutative setting. Our second result is to prove that rank

r

representations of this dg-algebra, over a field

\mathbb{F}

, correspond to colorings of the faces of the graph by elements of the Grassmannian

\operatorname{Gr}(r,2r;\mathbb{F})

so that bordering faces are transverse, up to the natural action of

\operatorname{PGL}_{2r}(\mathbb{F})

. Underlying the combinatorics, the dg-algebra is a computation of the fully non-commutative Legendrian contact dg-algebra for Legendrian satellites of Legendrian 2-weaves, though we do not prove as such in this paper. The graph coloring problem verifies that, for Legendrian 2-weaves, rank

r

representations of the Legendrian contact dg-algebra correspond to constructible sheaves of microlocal rank

r

. This is the first explicit such computation of the bijection between the moduli spaces of representations and sheaves for an infinite family of Legendrian surfaces.
A note on the admissibility of smooth simple $RG$-modules
Authors: Sheth Mihir
Published: January 2024

Let

G

be a

p

-adic reductive group and

R

be a noetherian Jacobson algebra over the ring

\mathbb{Z}_{l}

of

l

-adic integers with

l\neq p

. In this note, we show that every smooth irreducible

R

-linear representation of

G

is admissible using the finiteness result of Dat, Helm, Kurinczuk and Moss for Hecke algebras over

R

.
Ground state solution for a weighted elliptic problem under double exponential nonlinear growth
Authors: Jaidane Rached
Published: January 2024

This work is concerned with the existence of a positive ground state solution for the following weighted problem:

\begin{cases} -\operatorname{div}(\sigma(x)\lvert\nabla u\rvert^{N-2} \nabla u) = f(x,u) &\text{in}\ B,\\ u > 0 & \text{in}\ B,\\ u = 0 &\text{on}\ \partial B, \end{cases}

where

B

is the unit ball of

\mathbb{R}^N

,

\sigma(x) = (\log(e/\lvert x \rvert))^{N-1}

, the singular logarithm weight in the Trudinger–Moser embedding. The nonlinearity is assumed to have exponential growth in view of Trudinger–Moser type inequalities. We introduce the Nehari manifold associated to the energy and use minimax techniques to prove the existence of a positive ground state solution. In the critical case, the energy loses compactness at a certain level. We provide a new condition for growth and we stress its importance to check compactness level.
Decay estimates in time for fractional evolution equations
Authors: Achache Mahdi
Published: January 2024

We consider the homogeneous time-fractional diffusion equation

\partial^{\alpha} (u-u_0)(t)+A u(t)=0, \quad t\text{-a.e.}

Here,

\partial^{\alpha}

denotes the Riemann–Liouville fractional derivative of order

\alpha \in (0,1)

with respect to time and

A

is a uniformly elliptic operator on

\mathbb{R}^d

. We prove decay estimates in time and other regularity properties for the solution of the above equation.
Combinatorics of non-ambiguous trees
Authors: Aval Jean-Christophe , Boussicault Adrien , Bouvel Mathilde , Silimbani Matteo
Published: January 2024

This article investigates combinatorial properties of non-ambiguous trees. These objects we define may be seen either as binary trees drawn on a grid with some constraints, or as a subset of the tree-like tableaux previously defined by Aval, Boussicault and Nadeau. The enumeration of non-ambiguous trees satisfying some additional constraints allows us to give elegant combinatorial proofs of identities due to Carlitz, and to Ehrenborg and Steingrímsson. We also provide a hook formula to count the number of non-ambiguous trees with a given underlying tree. Finally, we use non-ambiguous trees to describe a very natural bijection between parallelogram polyominoes and binary trees.

Cet article s’intéresse aux propriétés combinatoires des arbres non-ambigus. Ces objets, que nous définissons, peuvent être vus soit comme des arbres dessinés sur une grille sous certaines contraintes, soit comme un sous-ensemble des tableaux boisés précédemment définis par Aval, Boussicault et Nadeau. L’énumération des arbres non-ambigus satisfaisant des contraintes supplémentaires nous permet de donner des preuves combinatoires élégantes d’identit&s dues à Carlitz, et à Ehrenborg et Steingrímsson. Nous donnons aussi une formule des équerres pour le comptage des arbres non-ambigus dont l’arbre sous-jacent est fixé. Enfin, nous utilisons les arbres non-ambigus pour décrire une bijection très naturelle entre polyominos parallélogrammes et arbres binaires.
On Orbits of Order Ideals of Minuscule Posets
Authors: Rush David B. , Shi Xiaolin
Published: January 2024

An action on order ideals of posets considered by Fon-Der-Flaass is analyzed in the case of posets arising from minuscule representations of complex simple Lie algebras. For these minuscule posets, it is shown that the Fon-Der-Flaass action exhibits the cyclic sieving phenomenon, as defined by Reiner, Stanton, and White. A uniform proof is given by investigation of a bijection due to Stembridge between order ideals of minuscule posets and fully commutative Weyl group elements. This bijection is proven to be equivariant with respect to a conjugate of the Fon-Der-Flaass action and an arbitrary Coxeter element. If $P$ is a minuscule poset, it is shown that the Fon-Der-Flaass action on order ideals of the Cartesian product $P \times [2]$ also exhibits the cyclic sieving phenomenon, only the proof is by appeal to the classification of minuscule posets and is not uniform.

Une action sur des idéaux d’ordre d’ensembles partiellement ordonnés, qui ont été considérés par Fon-Der-Flaass, est analysée dans le cas des ensembles ordonnés qui proviennent des représentations minuscules d’algèbres de Lie simples complexes. À propos de ces ensembles ordonnés minuscules, il est démontré que l’action Fon-Der-Flaass offre le phénomène du crible cyclique, tel que défini par Reiner, Stanton et White. Une preuve uniforme est donnée par une étude d’une bijection due à Stembridge entre les idéaux d’ordre d’ensembles ordonnés minuscules et les éléments complètement commutatifs du groupe de Weyl. Il est démontré que cette bijection est équivariante en ce qui concerne un conjugué de l’action Fon-Der-Flaass et un élément de Coxeter arbitraire. Si $P$ est un ensemble ordonné minuscule, il est démontré que l’action Fon-Der-Flaass sur des idéaux d’ordre du produit cartésien $P \times [2]$ manifeste le phénomène du crible cyclique aussi, mais la preuve de ce fait est par appel à laclassification des ensembles ordonnés minuscules et n’est pas uniforme.
Poset binomials and rainbow characters
Authors: Bragg Daniel , Thiem Nathaniel
Published: January 2024

This paper introduces a variation on the binomial coefficient that depends on a poset and interpolates between $q$-binomials and 1-binomials: a total order gives the usual $q$-binomial, and a poset with no relations gives the usual binomial coefficient. These coefficients arise naturally in the study of supercharacters of the finite groups of unipotent upper-triangular matrices, whose representation theory is dictated by the combinatorics of set partitions. In particular, we find a natural set of modules for these groups, whose characters have degrees given by $q$-binomials, and whose decomposition in terms of supercharacters are given by poset binomial coefficients. This results in a non-trivial family of formulas relating poset binomials to the usual $q$-binomials.

Cet article présente une variation des coefficients binomiaux qui dépend d’un ordre partiel et qui interpole entre les $q$-binômes et les 1-binômes: un ordre total donne les $q$-binômes habituelles, et un ordre partiel sans relations donne les coefficients binomiaux habituelles. Ces coefficients apparaissent naturellement dans l’étude des supercaractères de groupes finis de matrices unipotentes, triangulaires supérieures, dont la représentation est dictée par la théorie de la combinatoire des partitions d’ensembles. En particulier, nous trouvons un ensemble naturel de modulespour ces groupes, dont les caractères ont des degrés donnés par les $q$-binômes, et dont les décompositions en termes de supercaractères sont donnés par les coefficients binômiaux d’ordres partiels. Cela donne une famille non-trivial de formules qui relient les binômes d’ordres partiels aux$q$-binômes habituelles.