bluuebunny/crossref_metadata_2025 huggingface dataset:
Dynamics in fermentation quality, bacterial community, and metabolic profile during silage fermentation of late-harvested elephant grass
Authors: Zhao Jie , Yin Xue-Jing , Dong Zhi-Hao , Wang Si-Ran , Li Jun-Feng , Shao Tao
Published: January 2023

The present study aimed to evaluate the effects of delayed harvest and storage length on fermentation products, bacterial community, and metabolic shifts of elephant grass silage. The late-harvested elephant grass (LG) was naturally fermented (NLG) for 1, 3, 7, 15, 30, and 60 days, respectively. After 60-day ensiling, NLG displayed homolactic fermentation with low pH value, butyric acid, and ammonia nitrogen concentrations, and high lactic acid concentration, and ratio of lactic acid to acetic acid. Pseudomonas, Sphingomonas, and Pantoea dominated the bacterial community in LG, but Lactobacillus, Lactococcus, and Pediococcus were the advantageous genera in a 3-day and 60-day NLG. The correlation heatmap revealed that Acetobacter was positively related to acetic acid, ethanol, ammonia nitrogen, and butyric acid concentrations. There were distinct differences in the KEGG (Kyoto Encyclopedia of Genes and Genomes) metabolic profiles of fresh and ensiled LG. Ensiling suppressed the metabolism of amino acid, vitamins, and energy, while promoted the metabolism of carbohydrate. The LG can be well-fermented without additives, but its low crude protein content should not be ignored when applied in agricultural practice. The ensiling process remarkably affected the fermentation quality, bacterial community, and metabolic profiles of NLG.
Standing surgery among equine board certified surgeons: Survey regarding current use and trends
Authors: Bonomelli Natacha , Bonilla Alvaro G.
Published: January 2023

Background

Publications about equine standing surgery are flourishing, however, information regarding its use and prevalence among surgeons is still limited.

Objectives

To determine the current use and recent trends for equine standing surgery among board certified surgeons and to identify the main reasons and limitations for performing a procedure standing.

Study design

Cross‐sectional survey.

Methods

A 139‐item questionnaire was sent by email to 733 large animal surgery Diplomates (ACVS and ECVS) from November 2020 to February 2021. The survey collected demographic information and general data regarding standing surgery before being divided into seven identical sections for each body system, involving 36 standing procedures.

Results

The survey response rate was 29.7% (218/733). Most respondents (58.9%, 126/214) had performed standing surgery for <10 years regardless of length of time they were board certified (48.2% board certified <10 years and 51.8% >10 years). Most respondents (range: 50.0%–92.9%, mean 69.5%) changed from performing 14/36 surgeries under general anaesthesia (GA) to standing within the previous 10 years and had always performed 8/36 surgeries standing (51.6%–73.9%, mean 61.4%) regardless of board certification time. Surgeons board certified <10 years ago performed more often 3/36 listed procedures standing than those board certified >10 years ago (p < 0.05). Avoiding GA (179/218) and/or reducing procedure cost (111/218) were the two main reasons to perform standing surgeries whereas the horse's behaviour (183/218) and/or the patient size/age (94/218) were the two main limiting factors.

Main limitations

Low response rate. Results biased towards the opinion of a subgroup of surgeons, those performing standing surgery. Some standing procedures were not included in the survey.

Conclusions

The use of standing surgery is well established among board certified surgeons and progressively increasing, especially in the last 10 years and among recent Diplomates. With increased training and awareness, more Diplomates may be encouraged towards performing standing surgeries.
Low-lying doubly heavy baryons: Regge relation and mass scaling
Authors: Song YongXin , Jia Duojie , Zhang WenXuan , Hosaka Atsushi
Published: January 2023

In framework of heavy-diquark–light-quark endowed with heavy-pair binding, we explore excited baryons $$QQ^{\prime }q$$

Q

Q
′

q

containing two heavy quarks ($$QQ^{\prime }=cc,bb,bc$$

Q

Q
′

=
c
c
,
b
b
,
b
c

) by combining the method of Regge trajectory with the perturbative correction due to the heavy-pair interaction in baryons. Two Regge relations, one linear and the other nonlinear, are constructed semi-classically in the QCD string picture, and a mass scaling relation based on the heavy diquark–heavy antiquark symmetry are employed between the doubly heavy baryons and heavy mesons. We employ the ground-state mass estimates compatible with the observed doubly charmed baryon $$\Xi _{cc}$$

Ξ

cc

and spectra of the heavy quarkonia to determine the trajectory parameters and the binding energies of the heavy pair, and thereby compute the low-lying masses of the excited baryons $$\Xi _{QQ^{\prime }}$$

Ξ

Q

Q
′

and $$\Omega _{QQ^{\prime }}$$

Ω

Q

Q
′

up to 2S and 1P excitations of the light quark and heavy diquark. The level spacings of heavy diquark excitations are found to be smaller generally than that of the light-quark excitations, in according with the nature of adiabatic expansion between the heavy and light-quark dynamics.
Comparative Study of Fingerprint-Based Gender Identification
Authors: Berriche Lamia
Published: January 2023

Gender identification is a need in forensics investigation. In addition to their use for identification, fingerprints are used for gender identifications. In this work, we propose a model for fingerprint gender classification focusing on a small dataset with imbalanced classes. First, we applied denoising and equalization filters to the fingerprint images. Then, we cropped the image into a region of interest. After preprocessing the fingerprint image, we extracted fast Fourier transform (FFT) and principal component analysis (PCA) features, and we applied the min-max normalization. We train our models with each of them as well as with their fusion. To balance the initially imbalanced datasets, we used two sampling techniques: random sampling and synthetic minority oversampling Technique (SMOTE). Our comparison of the receiver operating characteristic (ROC) of K-nearest neighbours (KNN), Support Vector Machine (SVM), Decision Tree, and forward neural network showed that the best result for the area under the ROC Curve is given by the SVM classifier. Next, we compared the SVM classifier accuracy for each fingerprint position with FFT features, PCA features, and their fusion. In addition, we applied both random hybrid sampling and SMOTE sampling. We applied our method on the National Institute of Standards and Technology (NIST) special database, 4 gray scale images of fingerprint image. We showed that the fusion of FFT and PCA features gives the best gender identification accuracy when the SMOTE dataset balancing technique is applied. We found that the right ring finger was more appropriate with 75.55% of correct male gender identifications and 91.62% female gender identification. Further investigation into dataset balancing techniques will be applied in the future.
A Rare Cutaneous Manifestation: Leukocytoclastic Vasculitis after Pfizer-BioNTech COVID-19 Vaccination
Authors: Serrano Gomez Yaritza , Grella Brittney , Wang Hongbei
Published: January 2023

There is growing evidence that vaccines against SARS-CoV-2 can cause various skin reactions, many of which have autoimmune origins. These specific vaccine-induced autoimmune conditions with cutaneous manifestations include lupus erythematosus, bullous pemphigoid, vitiligo, alopecia areata, and leukocytoclastic vasculitis (LCV). In particular, LCV, which is also called hypersensitivity vasculitis, is an inflammation of small blood vessels. We present a case of an 81-year-old male evaluated in the emergency department for a bilateral purpuric non-blanching rash that appeared ten days after receiving the Pfizer-BioNTech booster vaccine against SARS-CoV-2. Results of a skin biopsy indicated LCV, and the rash completely resolved three weeks after clinical presentation.
Zinc Acetate Dihydrate Tablet-Associated Gastritis Occurring in a Post-Hematopoietic Stem Cell Transplant Recipient
Authors: Iwamuro Masaya , Tanaka Takehiro , Matsumura Akifumi , Kawano Seiji , Kawahara Yoshiro , Okada Hiroyuki
Published: January 2023

A 65-year-old Japanese woman underwent umbilical cord blood transplantation for acute myeloid leukemia. Zinc acetate dihydrate tablets were administered for hypozincemia after transplantation, and vomiting and appetite loss occurred soon thereafter. Esophagogastroduodenoscopy revealed mucosal redness, erosion, white coat adhesion, and ulcers. Although graft-versus-host disease, intestinal transplant-associated microangiopathy, and cytomegalovirus infection were considered as possible causes, we diagnosed the patient with zinc acetate dihydrate tablet-associated gastric mucosal alterations based on the endoscopic features. This case reinforces the notion that medication-associated gastric lesions should be suspected in patients taking zinc acetate dihydrate tablets.
Can Prenatal Diagnosis of Total Anomalous Pulmonary Venous Return (TAPVR) Using Routine Fetal Ultrasound be Improved? A Case-Control Study
Authors: Heard Jack , Soni Reeni , Nikel Katarina , Day Chelsea , Pylypjuk Christy
Published: January 2023

Objectives. To determine the most common fetal ultrasound markers of total anomalous pulmonary venous return (TAPVR) during mid-trimester ultrasound using standardly obtained images and evaluate the performance of diagnostic algorithms for improving prenatal diagnosis. Methods. This was a matched case-control study at a regional referral centre (2005 to 2019). Cases of TAPVR were matched to controls 1 : 4 by date of birth and biologic sex. Postprocessing review of stored fetal ultrasound images was performed by two blinded and independent observers in a standardized fashion using nine sonographic markers: (i) left/right heart disproportion; (ii) abnormal distribution of great vessels; (iii) pulmonary vein entry into the left atrium (LA); (iv) confluence behind the LA; (v) abnormal coronary sinus; (vi) absence of the Coumadin ridge; (vii) aortic diameter; (viii) distance between LA and aorta; and (ix) post-LA space index >1.27. Descriptive and inferential statistics were used to present results and compare cases and controls. Diagnostic algorithms were compared by sensitivity/specificity. Results. 21 cases of isolated TAPVR were matched to 84 controls (n = 105). The most common ultrasound marker of TAPVR was absence of pulmonary vein entry into the LA (42.9%), followed by abnormal Coumadin ridge (38.1%). Cases of TAPVR had significantly larger post-LA spaces than controls (

p
<
0.0001

) and wider aortic diameters (

p
=
0.006

). A diagnostic algorithm stratifying on absence of pulmonary veins followed by an abnormal Coumadin ridge, can correctly identify cases of TAPVR with high specificity (90.5%) and moderate sensitivity (61.9%). Conversely, a diagnostic algorithm using the presence of any 3 abnormal markers had improved specificity (94.1%) but poorer sensitivity (23.8%). Conclusions. Using standardly obtained images from routine fetal ultrasound, improved prenatal detection of isolated TAPVR is possible. A standardized diagnostic approach can be highly specific for fetal TAPVR, however, algorithms that are sufficiently sensitive for screening in the general population are still needed.
Electronical educational and methodological complexes as a means of forming the professional competence of future doctors when studying disciplines from natural sciences
Authors: Batyuk Liliya
Published: January 2023

The article examines the possibilities of electronical educational and methodological complexes for the formation of professional competence of masters of higher medical education institutions and assessment of their academic achievements. It is claimed that obtaining a quality education is inextricably linked to the use of digital information and communication technologies, connected with the ability of students to understand electronic materials presented in the form of texts, graphs and tables, and to independently master theoretical material. Emphasis is placed on the tendency to use professionally oriented materials as a source of knowledge. The article presents the results of research into the forms and methods of effective implementation of electronical educational and methodical complexes on the Moodle platform among students which are studying at the Kharkiv National Medical University on the example of the academic discipline Medical and Biological Physics. The advantages and disadvantages of using electronic educational and methodological complexes in higher educational institutions are discussed.
Wound-directed revascularisation in the Diabetic Foot patients
Authors: Shapovalov Danylo , Hupalo Yurii , Shaprynskyi Vasyl , Shamrai-Sas Artem , Kutsin Anton , Gurianov Vitalii
Published: January 2023

Introduction: Peripheral arterial diseases in patients with diabetic foot have significant features in pathogenesis, manifestations and course compared with peripheral arterial disease. These features require different approaches to treatment and the the angiosome theory can help increase the effectiveness of revascularization in patients with diabetic foot.

The aim: Analyse the results of revascularisation of lower extremity arteries in the patients with ischemic diabetic foot ulcers according to the angiosome theory.

Materials and metods: We analysed 98 revascularisations of arteries of 77 lower limbs in 74 ischemic diabetic foot patients for the period from 2017 to 2021. Angioplasties were performed in 71 cases (72,5%), open operations – in 21 (21,4%), hybrid operations – 6 (6,1%). According to angiosome theory we divided the revascularizations into two groups. І group – direct revascularizations (DR) – 57 cases, ІІ group – indirect revascurizations (IR) – 21 cases.

Results: Within 6 months foot lesions healing fixed in І group (DR) - 81.7%, in ІІ group (IR) – 78.6%. Major amputations were the consequences of 17,1% revascularizations: DR group – 12,4%, IR group – 33,3%. Functional capacity of the lower extremity within one year was saved in 79,3% in DR group and in 57,9% in IR group. Repeated revascularizations accounted for 21,4% of cases: in DR group – 20,5%, in IR group – 25%.

The results of the statistical analysis revealed the dependence of the risk of amputation on adherence to angiosome theory during revascularization.

Conclusions: Angiosome-targeted revascularization in the area of foot lesions increases efficiency of the revascularization and improves immediate and long-term treatment results.
The molecular diagnosis of house dust mite allergy: a short review
Authors: Choina Magdalena , Gromek Weronika , Wilk Klaudia , Marzęda Magdalena , Pukaliak Roman
Published: January 2023

Introduction: House dust mite (HDM) allergens are considered among the most essential elicitors of allergic rhinitis and asthma worldwide [1]. How can we determine the individual sensitization profile of a patient? Is there a way to monitor the development of allergic symptoms? Is it possible to tailor different forms of therapy based on the individual sensitization profile of a patient?

Purpose: The study aims to show the benefits of molecular diagnostics of allergies based on the example of HDM allergy.

Description of the state of knowledge: Clinical manifestation is the most important aspect of diagnosing HDM allergy. The determination of allergen specific immunoglobulins E (asIgE) against HDM extracts may be helpful in the identification of the cause of allergy symptoms. However, the diagnosis using allergen extracts cannot be established in all cases. What revolutionised the diagnosing process of HDM allergy is the molecular diagnostics of allergy. Based on the presence of asIgE against allergen molecules it is possible to identify the allergen responsible for the sensitisation as well as personalise the therapeutic recommendations. 

Summary: The molecular diagnostics of allergy significantly improved the specificity and sensitivity of HDM allergy diagnostics. Molecular diagnostics in individuals with HDM allergy make it possible to establish the individual patient’s allergy profile, and consequently personalise therapeutic recommendations. It is especially important regarding the selection of patients who may benefit from immunotherapy. The component-resolved diagnostics in allergology is a step toward personalised medicine.
Analysis Dumbbell Wrist Exercise Against Backhand Overhead Lob Badminton Players
Authors: Yogaswara Andre , Pratama Muchammad Sendyyudha
Published: January 2023

To ascertain the impact of 0.5 kg and 1 kg dumbbell wrist exercises on beginning badmintonplayers' backhand overhead lobs. (2) contrasting the efficiency of 0.5 kg and 1 kg dumbbellwrist exercises with a novice badminton player's backhand overhead lob? The research methodemployed is an experimental approach, and the treatment consists of 0.5 kg and 1 kg dumbbellwrist exercises, performed three times per week for a period of six weeks. A sample of 12players from PB Sehat Semarang was split into two groups of six each, representing thepopulation. Backhand overhead lob test: a tool for gathering data. The outcomes of thehypothesis analysis were t-count group A 4.029 and group B t-count 5.838 while the t-tablefrom degrees of freedom n-1 + n2 - 2 is 6 + 6 - 2 = 10 and the level of confidence = 5% is 2.28.The study's main finding is that (1) beginners' backhand overhead lobs are affected by wristexercises using 0.5kg and 1kg dumbbells. (2) The 0.5 kg dumbbell wrist exercise method andthe 1 kg dumbbell wrist exercise differ in how well they increase the ability of the backhandoverhead lob, but the 0.5 kg dumbbell wrist exercise has a more noticeable impact than the 1kg dumbbell wrist exercise.
Comparative study of the effects on the microbiota and leukocyturia of fresh and canned Naftussya water
Authors: Popovych Andriy , Ruzhylo Sofiya , Zakalyak Nataliya , Popovych Dariya , Żukow Xawery
Published: January 2023

Background. Balneotherapy has its rightful place in the arsenal of means of treatment of chronic. The universally recognized gold standard of balneofactors is Naftussya bioactive water. The issue of the loss of its healing properties by Naftussya water after extraction from the subsoil, the possibility of its preservation and transportation remain debatable and relevant. The purpose of this study is to compare the impact of fresh and canned water on the microbiota of feces and urine in patients with chronic pyelonephritis. Materials and Methods. The object of clinical-physiological observation were residents of the city of Truskavets’ (21 men aged 24-67 years and 8 women 33-76 years) with chronic pyelonephritis in remission. The subject of the study were the leukocyturia and bacteriuria levels and components of microbiota of feces. Results. Weekly use of fresh Naftussya water causes an increase in the reduced content of probiotics in the microbiota and a decrease in the increased content of conditionally pathogenic microflora, which is accompanied by a reduction of bacteriuria and leveling of leukocyturia. The beneficial effect on the listed parameters of canned Naftussya water is less pronounced, but the differences are statistically insignificant. Conclusion. The obtained results provide grounds for continuing research into the effects of canned Naftusya water on the body of urological patients.
Probing of an Appreciable Antimicrobial Compound Producing Lactobacillus Strain from Milk Products of Thanjavur Region, Tamil Nadu and its Enhanced Production
Authors: Kumar Dayanidhi Satish , Venkatachalam Palanisamy
Published: January 2023

ABSTRACT: Lactobacillus is a heterogeneous class of lactic acid strains that synthesize bioactive compounds which contribute many health benefits to our mankind. Focusing this view, different Lactobacillus strains were collected from dairy products and were screened for their bioactive efficiencies against an infant diarrheal bacterial pathogen. 11 morphologically unique Lactobacillus strains were procured from curd, yoghurt and buttermilk purchased from the Thanjavur region, Tamil Nadu, India. While screening on a microtiter plate-based test, YMP3 revealed the best antimicrobial activity against a human pathogenic Vibrio cholerae with 67.8±2.1% inhibition. Further, the most appreciable strain was molecularly identified as Lactobacillus apis YMP3 based on 16S rRNA sequencing methodology. Based on the growth kinetics profile, this strain showed maximum production of antimicrobial compound between 72 to 108hrs of incubation. Furthermore, this strain evidenced the cultural conditions of pH 6.5 and 35°C temperature for the appreciable production of the antimicrobial compound. Based on these overall observations, the research stood as the promising baseline data for the enhanced antimicrobial investigation of this probiotic L. apis YMP3 against many human pathogenic strains and its possibilities for drug development.
Isolation and Characterization of Lytic Phage against Salmonella Typhimurium
Authors: Alharbi .Najwa Menwer , Alshaikh Sana’a Khalifah
Published: January 2023

ABSTRACT: Significant prevalence of antibiotic resistance in Salmonella has been observed, causing global concern that it may lead to more severe health effects. Bacteriophages have emerged as an alternative treatment tool for managing bacterial infections, garnishing new attention. This study aimed to identify a Salmonella typhimurium-specific phage from chicken farms. The study verified the ability of lytic phage SAL 10 to stop the growth of bacteria. Furthermore, it involved conducting a series of phage analyses to verify their physical characteristics, such as temperature, pH, and host range. The Host ranges S. typhimurium of isolated phages against various strains were analyzed. Our results indicated that the isolated bacteriophages had a narrow range of activity. The phage was more stable at 37–50 °C and at pH 4–7. During the first 4 h of infection, phage SAL 10 inhibited the host bacterial growth. Following 24 h of incubation at 37 °C, we determined phage titration to be in the range of 103–108 PFU/mL in all experiments. Moreover, we determined the morphological properties of the phage using transmission electron microscopy, and the phage SAL 10 belonged to the order Caudovirales and family Siphoviridae. Results presented in this research show that SAL 10 phage can be used as a successful alternative to antibiotics.
Formulation and Evaluation of Herbal Ointment of Berberis aristata for Inhibition of Psoriasis-like Symptoms
Authors: Shrivastav Alankar , Mishra Arun Kumar , Gupta Ashessh Kumar
Published: January 2023

To prepare an herbal ointment using an ethanolic extract of Berberis aristata and assess the anti-psoriatic effectiveness of the finished product. We were able to make multiple ointments that were each categorized as F-1, F-2, and F-3 by adding varying concentrations of stearic acid and cetyl alcohol by learning about various formulation types, such as oil in water. The analysis of many factors, including pH, viscosity, spreadability, and stability, was used to evaluate all formulations. A formulation of ethanolic extract (F-3) showed antipsoriatic action. No evidence of a separate phase or ease of removal was found in any of the formations, but they all demonstrated good spreadability, consistency, appearance, and pH. Additionally, during irritancy trials, the formulation F-3 did not cause redness, oedema, erythema, or irritation. The use of this formulation on the skin is safe. As a result, the study implies that the extract's and the ointment's base's compositions are safer and more stable, however, they might also have synergistic effects.
Assessment of People’s Perception of Genetically Modified Foods and their Risk or Benefits to Human Health in Saudi Arabia
Authors: Shami Ashjan Ali
Published: January 2023

There is a significant growth in the human population worldwide which leads to increasing the demand for food, which typically results in additional use of food industries to make a new form of food such as genetically modified food (GMF) to meet the need for global nutrition. GMF starts to invade our diet which results in increase the concerns and debates about their safety. The present study is investigating the following: Assess people’s knowledge about GMF and evaluate its risk on health. An online survey was carried out to assess consumer knowledge about GMF. The study showed that 74.3% of the respondent know what GMF is and in terms of the risk of GMF on the environment and human health about 43.7% believe there is a risk. The majority of the respondents assume that the risk of GMF is greater than its benefits. Some of the respondents believe that there is an effect of consuming GMF on their genes, but it is still unknown. Expert knowledge on the scientific issues surrounding genetically modified food is far behind what the general population believes. The conclusion that may be drawn from the scientific method is almost always solely the truth, despite the fact that culture and attitudes can vary
Insights into the Habitat Choice for the Culture of Himalayapotamon emphysetum under Laboratory Conditions
Authors: Dhar Menakshi , Langer Seema , Gupta Chakshu
Published: January 2023

The main aim of the present study was to scrutinize the substrate and microhabitat preferred by the Himalayapotamon emphysetum under laboratory conditions. In the first experiment, different substrates: gravel, stones, and cobbles were placed in the round plastic containers, and in the second experiment: grass, aquatic plants, and wood fragments were used as microhabitats for analyzing the preference of the crab species. Minimum mortality was observed when the crabs were provided with the substrate of stones and wood fragments as the microhabitat. The results of the present study provide a better understanding of the breeding and culture of commercially important crab species of Jammu and Kashmir Union Territory and can be used as a reference for determining the culture conditions for Himalaypotamon emphysetum that will boost the economy of this region. The studies related to the preference of habitat and substrate of any species is essential for aquaculture and breeding programs.
Study to Analyse the Chemotherapeutic Effect of Propolis And Withaferin-A on Benz (A) Pyrene Induced Lipid Peroxidation and Antioxidant System in Wistar Rats
Authors: T S Meghalatha , Suresh Arumugam , Muninathan N
Published: January 2023

ABSTRACT: Background & Objectives: Female breast cancer has become the first and most common malignancy surpassing lung cancer, and the global incidence is reported to be high. In general, developing countries like India reports more cancer cases which have become a significant health burden. The currently available anticancer agents pose significant toxicities besides the development of resistance. Therefore, natural compounds with promising anticancer activity may be investigated. In the present study, we evaluated the combinational effect of propolis and withaferin A in female Wistar rats subjected to Benz(a)pyrene-induced breast cancer. Methods: Five groups of rats, each consisting of six animals, were used in the study. Group I (normal control), group II (cancer control) were treated with saline and benz (a) pyrene, respectively. Whereas group III, group IV and group V were intended to receive withaferin A, propolis individually and in combination. Finally, antioxidant levels of all groups were estimated in blood using spectrophotometrically. Results: Our results revealed that the combined treatment with withaferin A and propolis was effective compared to their individual effect. This observation was supported by decreased lipid peroxidation. Additionally, the levels of both enzymatic and non-enzymatic were elevated compared to the rats in the groups that received individual treatment. Interpretation and Conclusions: Propolis and withaferin A combination effectively prevent the Benz (a) pyrene-induced mammary carcinogenesis. The underlying mechanism could be their synergistic antioxidant property.
Epiphyseal distraction prior to resection in paediatric bone sarcomas
Authors: San-Julián Mikel , Gómez-Álvarez Jorge , Idoate Miguel Á. , Aquerreta Jesús D. , Vázquez-García Blanca , Lamo-Espinosa José M.
Published: January 2023

Paediatric bone sarcomas are a dual challenge for orthopaedic surgeons in terms of tumour resection and reconstruction, as it is important to minimize functional and growth problems without compromising survival rates. Cañadell’s technique consists of a Type I epiphysiolysis performed using continuous distraction by an external fixator prior to resection. It was designed to achieve a safe margin due to the ability of the physeal cartilage to be a barrier to tumour spread in some situations, avoiding the need for articular reconstruction, and preserving the growth capacity most of the times. Despite initial doubts raised in the scientific community, this technique is now widely used in many countries for the treatment of metaphyseal paediatric bone sarcomas. This annotation highlights the importance of Cañadell’s work and reviews the experience of applying it to bone sarcoma patients over the last 40 years.

Cite this article: Bone Joint J 2023;105-B(1):11–16.
Interpreting decision-analytic modelling-based economic evaluations in orthopaedics
Authors: Petrou Stavros , Png May Ee , Metcalfe David
Published: January 2023

Economic evaluation provides a framework for assessing the costs and consequences of alternative programmes or interventions. One common vehicle for economic evaluations in the healthcare context is the decision-analytic model, which synthesizes information on parameter inputs (for example, probabilities or costs of clinical events or health states) from multiple sources and requires application of mathematical techniques, usually within a software program. A plethora of decision-analytic modelling-based economic evaluations of orthopaedic interventions have been published in recent years. This annotation outlines a number of issues that can help readers, reviewers, and decision-makers interpret evidence from decision-analytic modelling-based economic evaluations of orthopaedic interventions.

Cite this article: Bone Joint J 2023;105-B(1):17–20.
Super Ultra-Wideband Planar Antenna with Parasitic Notch and Frequency Selective Surface for Gain Enhancement
Authors: Jha Pankaj , Kumar Anubhav , De Asok , Jain Rakesh Kumar
Published: January 2023

A compact Super ultra-wideband (SUW) antenna is discussed in this work. A rectangular radiator is modified into a tree-shaped structure with the defected partial ground to enhance the operating bandwidth. The novel rectangular parasitic with the circular slot is used as a notch in the ground plane which prevents the WLAN frequency. The proposed SUW antenna is achieving the 10 dB impedance bandwidth (IBW) from 3.5 GHz to 66.5 GHz frequency with a notched band varying from 5.0 GHz to 5.4 GHz. The bandwidth ratio (BDR) of the proposed SUW antenna is 1773.4 whereas the obtained bandwidth percentage (BW %) is 180. A modified SRR frequency selective surface (FSS) is designed for UWB application to improve the gain of the antenna. The compact unit cell of FSS is having electrical dimensions of 0.16λ0x  0.16λ0 The antenna achieves the maximum realized gain 9.46 dB when FSS is loaded as a superstrate and up to 5.2 dB gain enhancement is observed in the UWB frequency.
Multiple Frequencies Five-Port Reflectometer (FPR) for Pure and Adulterated Honeys
Authors: Cheng E. M. , Shahriman A. B. , Lee K. Y. , Khor S. F. , Nasir N. F. Mohd , Baharuddin S. A. , Mohamad C. W. S. Robiah , Tarmizi E. Z. Mohd
Published: January 2023

Honey adulteration is one of the major health concerns among honey consumers, it is essential to inspect the quality of honey. One of the methods is to characterize the honey by using the microwave reflection technique. A Five-Port Reflectometer (FPR) is proposed in this work. The microstrip Five-Port ring junction circuit was designed for multiple frequencies of 0.60 GHz, 2.28 GHz, and 3.47 GHz. The fabricated circuit works with an analogue-digital converter, open-ended coaxial sensor, diode detectors and computer to form a complete FPR measurement system. The reflection measurements were conducted on Honey Gold and Trigona Honey for multiple frequencies. The performance of the FPR in s-parameter measurement was verified by Vector Network Analyzer (VNA). This study shown that the performance of FPR in term of reflection measurement has promising accuracy which is comparable with VNA. The FPR can be used as an alternative instrumentation system for characterizing pure and adulterated honey.
Temperature Effects Analysis on Microwave Rectifiers by Field-Circuit Hybrid Multiphysics Simulation
Authors: Zeng Hongzheng , Chen Yaqing , Zhou Chao , Tang Yuzhu , Chen Xing
Published: January 2023

This work analyzes the temperature effects on microwave circuits by employing a novel field-circuit hybrid multiphysics simulation. Firstly, the multiphysics simulation is implemented by solving the coupled governing equations including Poisson equations, semiconductor transport equations, and thermodynamic equations; then, the multiphysics simulation is incorporated into circuit analysis; finally, the circuit simulation results are integrated into the finite-difference time-domain (FDTD) simulation by equivalent sources. In this manner, a field-circuit hybrid multiphysics simulation method is presented. Taking two different microwave rectifiers operating at S- and C-band as examples, temperature effects are analyzed by the proposed approach. Simulation results are in good agreement with measured values, demonstrating the accuracy and applicability of the proposed approach. The presented method more suitably reveals the temperature effects on the rectifier.
Exploring the Addition of Airborne Lidar-DEM and Derived TPI for Urban Land Cover and Land Use Classification and Mapping
Authors: Akumu Clement E. , Dennis Sam
Published: January 2023

The classification and mapping accuracy of urban land cover and land use has always been a critical topic and several auxiliary data have been used to improve the classification accuracy. However, to the best of our knowledge, there is limited knowledge of the addition of airborne Light
Detection and Ranging (lidar)-Digital Elevation Model (DEM) and Topographic Position Index (TPI) for urban land cover and land use classification and mapping. The aim of this study was to explore the addition of airborne lidar-DEM and derived TPI to reflect data of Landsat Operational Land
Imager (OLI) in improving the classification accuracy of urban land cover and land use map- ping. Specifically, this study explored the mapping accuracies of urban land cover and land use classifications derived using: 1) standalone Landsat OLI satellite data; 2) Landsat OLI with acquired
airborne lidar-DEM ; 3) Landsat OLI with TPI ; and 4) Landsat OLI with airborne lidar-DEM and derived TPI. The results showed that the addition of airborne lidar-DEM and TPI yielded the best overall urban land cover and land use classification accuracy of about 88%. The findings in this study
demonstrated that both lidar-DEM and TPI had a positive impact in improving urban land cover and land use classification.
RELAÇÃO ENTRE A PERCEPÇÃO DA CORRUPÇÃO E A EVASÃO FISCAL NA AMÉRICA LATINA
Authors: Lima Lauro Vinício de Almeida , Silva Vanessa Karla Rebouças da , Lucena Wenner Gláucio Lopes
Published: January 2023

Objetivo: A pesquisa teve como objetivo verificar qual a implicação do nível de percepção da corrupção no setor público no nível de evasão fiscal de tributos sobre a renda nas empresas nos países da América Latina.
Método: Com dados de 10 países da América Latina, entre os anos de 2011 e 2017, em uma amostra de 771 empresas e 5006 observações, inicialmente, no estudo, foi estimada a proxy de evasão fiscal, por intermédio do book tax difference abnormal (BTDA), como resultado do resíduo de um modelo regressivo que considerou as variáveis que explicariam, em média, a diferença entre o lucro tributário e o contábil. Seguidamente, a BTDA foi regredida com as variáveis de percepção da corrupção da taxa tributária sobre o lucro exigida no país.
Resultados: Os resultados encontrados indicam que a percepção da corrupção no setor público pela sociedade pode estimular o nível de evasão fiscal praticado nas empresas, diante da sensação de abandono, descaso social. Também, foram encontrados indicativos que elevadas taxas de tributos sobre o lucro podem desestimular a prática evasão fiscal, em virtude da possibilidade de as empresas receberem altas multas pelo inadimplemento dos tributos.
Contribuições: A pesquisa avança no debate sobre a corrupção governamental e sua influência no comportamento dos gestores nas empresas, ao encontrar evidências que há uma relação direta entre a percepção social da corrupção no setor público e a evasão fiscal nas empresas de capital aberto nos países da América Latina. Estes achados, contribuem para o entendimento dos motivos determinantes de práticas fiscais evasivas nas empresas, fornecendo explicações que esclarecem de forma prática, como a corrupção no setor público pode influenciar o setor privado.
RELAÇÃO ENTRE AS UTILIDADES DO ORÇAMENTO E O DESEMPENHO ORGANIZACIONAL MEDIADA PELAS CAPACIDADES DINÂMICAS
Authors: Silva Thiago Bruno de Jesus , Lavarda Carlos Eduardo Facin
Published: January 2023

Objetivo: A Resource-based Theory (RBT) entende que o controle gerencial, como o orçamento empresarial, é um recurso utilizado para influenciar o empregado para implementação da estratégia, o que conduz para o desempenho maior. Este estudo objetiva analisar a relação entre o nível de utilidade do orçamento e o desempenho organizacional, mediada pelas capacidades dinâmicas empreendedorismo, inovação, aprendizado organizacional e a orientação para o mercado.
Método: Uma survey foi realizada com 200 gestores de médio e alto escalão das organizações do agronegócio produtoras de grãos do Brasil. Aplicaram-se a modelagem de equações estruturais, com uso do Partial Least Squere (PLS).
Resultados: As utilidades do orçamento de planejamento e de diálogo influenciam as capacidades dinâmicas. Em relação ao teste de mediação, verificou-se que as capacidades dinâmicas mediaram a relação entre o nível de utilidade do orçamento e o desempenho organizacional.
Contribuição: Demonstrou-se que o orçamento possui múltiplas utilidades. A partir disso, outras prioridades podem emergir, como a indução de metas, a instigação à criatividade, empreendedorismo e a aprendizagem organizacional, que são fonte de vantagem competitiva Como implicação prática, as evidências da pesquisa empírica podem contribuir para levantar discussões como o orçamento pode auxiliar os gestores e diretores do agronegócio a entender melhor o seu papel além das utilidades tradicionais e que tem escopo mais amplo.
REVISITANDO ABORDAGENS EM ESTUDOS HISTÓRICOS NA CONTABILIDADE PARA UMA AGENDA DE PESQUISA NO BRASIL
Authors: Inaldo Silva de Sá Bartoluzzio Alann , Nascimento Pedroso Claudio , Sauerbronn Fernanda Filgueiras
Published: January 2023

Objetivo: Revisitar a produção científica em história da contabilidade no Brasil, de modo a propor uma agenda de pesquisa que oportunize o desenvolvimento de conhecimentos com base em abordagens advindas da literatura internacional ainda pouco exploradas.
Método: A pesquisa bibliográfica em bases de dados analisa 34 dissertações de mestrado, 14 teses de doutorado e 114 artigos científicos distribuídos ao longo de quarenta anos (1980-2021). A categorização dos dados seguiu abordagens indicadas na literatura internacional e a análise revela tendências, lacunas e oportunidades.
Discussão: Os resultados mostram uma trajetória contínua que reflete receptividade, foco amplo e potencial para desenvolver conhecimentos alternativos em contabilidade. A despeito de algumas abordagens serem mais exploradas, a exemplo da história geral, institucional e da evolução do pensamento contabilístico, outras ainda acomodam espaços expressivos para contribuições, como a prosopografia, a biografia e a história internacional comparativa, oportunizando a produção de novas investigações para o campo.
Contribuição: O estudo fornece a primeira extensa e completa base de dados que revela o avanço das abordagens na história da contabilidade brasileira. Apresenta também estudos que são muitas vezes desconsiderados na área, devido às listagens restritas de periódicos. Os resultados ampliam o conhecimento sobre o potencial de diferentes abordagens históricas ainda a serem desenvolvidas no Brasil.
Fen bilimleri dersine yönelik öz-yeterlik ölçeği: geçerlik ve güvenirlik çalışması.
Authors: KARACA Melek , BEKTAŞ Oktay , SARAÇOĞLU Sibel
Published: January 2023

Belli bir performansa ulaşmak için insanların aksiyonlarını organize etme ve ortaya koyma becerileri ile ilgili inançlarını kapsayan öz-yeterlik, fen bilimleri dersinin amaçlarına ulaşabilmesi için önemlidir. Bu araştırmanın amacı, fen bilimleri dersine yönelik geliştirilen öz-yeterlik ölçeğinin geçerlik ve güvenirlik çalışmasını yapmaktır. Araştırma nicel araştırma yönteminin tarama desenine dayalı olarak yürütülmüştür. Araştırmanın çalışma grubunu Kayseri ili Melikgazi ilçesine bağlı dört farklı ortaokulda öğrenim gören, eğitimin farklı kademelerinden toplam 628 öğrenci oluşturmuştur. Uygulanan öz-yeterlik ölçeği kapsam geçerliğini sağlamak için alanyazına dayalı soru havuzu oluşturulmuş, taslak ölçek maddeleri belirlenmiş, uzman kontrolü sağlanmıştır. Ölçüt çalışma ile geliştirilen ölçek faktörlerinin güvenirlik katsayıları yorumlanarak ölçüt geçerliği kontrol edilmiştir. Açımlayıcı ve doğrulayıcı faktör analizleri ile yapı geçerliği kontrol edilmiştir. Geçerlik analizlerinden sonra yapılan güvenirlik analizi sonucunda Cronbach alfa güvenirlik katsayısı 0,67 olan üç faktörlü bir yapı elde edilmiştir. Araştırma sonuçları ışığında önerilerde bulunulmuştur.
Üniversite öğrencilerinde bilişsel kapılma, algılanan öğrenme ve özgüdümlü öğrenme arasındaki ilişkilerin incelenmesi
Authors: YILDIZ Aydıner Birsin , YILMAZ Baki
Published: January 2023

Araştırmanın amacı, uzaktan eğitim sürecindeki üniversite öğrencileri örnekleminde bilişsel kapılma, algılanan öğrenme ve özgüdümlü öğrenme arasındaki ilişkilerin incelenmesidir. Araştırmanın örneklem grubu, kolay ulaşılabilir örneklem yöntemi doğrultusunda gönüllülük ilkesiyle araştırmaya katılan 238 (kadın=167, erkek=71) öğrenciden oluşmuştur. Tarama modelinde yürütülmüş betimsel bu araştırmada kullanılan veriler Usluel ve Vural (2009) tarafından Türkçe uyarlaması yapılan “Bilişsel Kapılma Ölçeği”, Albayrak, Güngören ve Horzum (2014) tarafından Türkçe uyarlaması yapılan “Algılanan Öğrenme Ölçeği” ve Yurdugül ve Alsancak Sırakaya tarafından Türkçe uyarlaması yapılan “Çevrimiçi Öğrenme Hazır Bulunuşluluk Ölçeğinin” alt boyutu olan “Özgüdümlü Öğrenme Ölçeği” aracılığıyla elde edilmiştir. Elde edilen sonuçlara göre cinsiyet, algılanan öğrenme ve bilişsel kapılma için bir belirleyicidir. Kullanılan cihaz ve ders dışı teknoloji kullanımı bilişsel kapılma düzeyini etkilemektedir. Ayrıca yüksek bilişsel kapılma düzeyine sahip öğrenciler, tercih hakları olsa örgün eğitimi tercih edeceklerini belirtmişlerdir. Özgüdümlü öğrenme ile algılanan öğrenme arasında ise pozitif yönlü bir ilişki olduğu tespit edilmiştir. Bu bulgulardan hareketle öğrencilerin, özgüdümlü öğrenme düzeylerini yukarı çekebilmeleri adına çaba sarf etmeleri önerilmektedir.
Öğretmen görüşlerine göre ortaokullarda sosyal kaytarma davranışlarının incelenmesi
Authors: ATİLA Fulya
Published: January 2023

Bu araştırmada öğretmenlerin karşılaştıkları sosyal kaytarma davranışlarını, bunların nedenlerini, ortadan kaldırmak için neler yapılabileceğini belirlemek amaçlanmıştır. Nitel olarak yürütülen çalışmada “öğretmenlerin aynı görevi yapan diğer öğretmenlerle karşılaştırıldığında çabalarını azaltmaları”, “grubun diğer üyelerinin çalışmayacağına inanmaları halinde grup işlerinde görev üstlenmemeleri”, “görevlerini ertelemeleri” okullarda karşılaşılan sosyal kaytarma davranışları olarak tespit edilmiştir. “Grupta çalışmayan kişilerin çalışır görünmesinin”, “grupta çalışan kişilere daha fazla yüklenilmesinin”, “gruptaki bir eksikliği diğer üyelerin kapatabileceğine inanılmasının” sosyal kaytarmaya neden olabileceği bulgularına ulaşılmıştır. “Grup üyelerinin görev ve sorumluluk bilincine sahip olmaları”, “gruptakilerin birbirine yakın derecede performans göstermeleri”, “gruptakilere kendi yetenek ve ilgilerine göre yapabilecekleri görevler verilmesi”, “grubu ve işi kendi bireysel işleriymiş gibi sahiplenmeleri”, “hedeflerin net olarak belirlenmesi” ve “işin sonunda ne elde edileceğinin bilinmesi”, “grubun motivasyonunun yükseltilmesi”, “bireylerin ödüllendirilmeleri” halinde sosyal kaytarma davranışlarının önlenebileceği önerileri getirilmiştir.
Sözel dil becerileri eğitim programı (SÖDBEP)'in hızlı isimlendirme becerilerine etkisinin incelenmesi
Authors: EFE Mehtap , TEMEL Zeynep Fulya
Published: January 2023

Araştırma Sözel Dil Becerileri Eğitim Programı (SÖDBEP)’in hızlı isimlendirme becerilerine etkisinin incelenmesi amacıyla yapılmıştır. Araştırmada ön test-son test, kontrol gruplu yarı deneysel desen kullanılmıştır. Araştırmanın katılımcılarını, 2021-2022 eğitim-öğretim yılında Diyarbakır il merkezinde bulunan Millî Eğitim Bakanlığına bağlı bir anaokulunda okul öncesi eğitime devam eden toplam 38 tipik gelişim gösteren çocuk oluşturmaktadır. Veri toplama aracı olarak araştırmacı tarafından hazırlanan kişisel bilgi formu, Ergül ve Demir (2018) tarafından geliştirilen Hızlı İsimlendirme Testi (HİT) kullanılmıştır. Programın etkililiğinin incelenmesinde elde edilen veriler SPSS 26 paket programı ile analiz edilmiştir. İki gruba göre ölçümlerin karşılaştırılmasında Mann-Whitney U analiz yöntemi, iki ölçümün karşılaştırılmasında Wilcoxon sıralı işaretler testi yöntemi ve üç ölçümün (ön test-son test ve kalıcılık) puanlarının karşılaştırılmasında ise Friedman testi yöntemleri kullanılmıştır. Bu araştırma kapsamında elde edilen bulgular, SÖDBEP’in (Sözel Dil Becerileri Eğitim Programı) hızlı isimlendirme becerilerinin gelişimine katkı sağladığını göstermiştir.
İlkokul öğrencilerinin Türkçe dersindeki konuşma hatalarının incelenmesi
Authors: HATİPOĞLU Bünyamin , KASA AYTEN Başak
Published: January 2023

Bu araştırmada ilkokul öğrencilerinin Türkçe dersinde konuşma etkinliklerindeki yaptıkları konuşma hatalarının incelenmesi amaçlanmıştır. Bu amaçla nitel araştırma yöntemlerinden durum çalışması modeli kullanılmıştır. Araştırmanın amacı doğrultusunda 2021-2022 eğitim öğretim yılı ikinci döneminde Şanlıurfa ili Haliliye ilçesindeki bir ilkokulda birinci sınıf öğrencileri gözlemlenmiştir. Araştırmacı tarafından uygulanabilirliği sağlamak için çalışma grubu kolay örnekleme yöntemiyle seçilmiştir. Veri toplama aracı olarak Konuşma Becerisi Gözlem Formu, araştırmacı günlüğü, ses kayıtları kullanılmıştır. Verilerin analizinde betimsel analiz yöntemi kullanılmıştır. Araştırma sonucunda öğrencilerin telaffuzda, tonlama ve duraklamada, sesini ve beden dilini kullanmada, akıcı konuşma ile konuşma ve görgü kurallarına uymada hata yaptıkları bulunduğu tespit edilmiştir. Konu dışına çıkmada ise daha az hata yaptıkları görülmüştür. Konuşmasında yabancı kelime kullanma, kelimeyi doğru anlamda kullanmama, olayları oluş sırasına göre anlatmama, yöresel ağızla konuşma ile kaba ve argo konuşmada öğrenciler herhangi bir hata yapmamışlardır.