bluuebunny/crossref_metadata_2025 huggingface dataset:
The Structure of Professional Training of Future HR Managers to Use Corporate Learning Technologies
Authors:   State Institution Luhansk Taras Shevchenko National University, Xuilin Zhou
Published: November 2021

The article is devoted to the development of the structure of professional training of future personnel managers for the use of corporate training technologies. The author identified the principles that underlie the professional training of future personnel managers for the use of corporate training technologies. The principles of professional development of future HR managers were clarified and a survey of stakeholders was conducted, who ranked and rated the personal qualities of the HR manager. The own vision concerning components of structure of professional training of the future personnel managers is offered. The concept of "corporate learning" is determined as a set of educational activities of the organization, through which there is a qualified retraining of employees, which leads to an increase in overall productivity of the organization. The structure and content of professional training of future personnel managers as the leading and largest direction of modern professional training of future personnel managers are considered. As a result of the theoretical analysis of the essence of training of future personnel managers, we proposed the author's version of the structure of training, which is reflected in the motivational-personal, information-cognitive, perceptual-communicative, interactive-behavioral components of training of future personnel managers. Мotivational-personal component associates with motivation for future professional activities and the formation of certain personal qualities that are necessary for the quality of professional duties. Information and cognitive component denotes the ability to learn, update knowledge and improve professional skills and the ability to use knowledge in practice; ability to search, process and analyze information from various resources and the ability to use information and communication technologies. Perceptual-communicative component reveals the existence of a system of knowledge and skills necessary for professional activities; ability to build constructive relationships with employees based on common interests; mastery of technologies for solving professional problems based on the use of interactive communication, sociability and ability to interact, the ability to make decisions. Interactive-behavioral component is based on the ability to adapt and act in new situations, the ability to take initiative, lead new projects, the ability to use traditional verbal and nonverbal means of communication, the ability to work in a team, the ability to identify and solve problems in the team, ability to motivate employees and guide them to achieve new goals analyzes human resources, predicts and determines the need for staff and specialists.
SWOT-Analysis of the System of Training of Future Managers (Managers in the Education System)
Authors:   Mukachevo State University, Shvardak Marianna
Published: November 2021

It was found that systematic monitoring of the quality of education is necessary for effective management, informed decision-making, comparison and adequate assessment of the state of professional training. This task is successfully implemented through SWOT-analysis, which identifies strengths and weaknesses, potential opportunities and potential threats, establishing relationships between them, which can be further used to form quality management strategies for the training of future heads of educational institutions. A SWOT-analysis of the system of training future leaders (managers in the education system) was conducted and a matrix was developed on the example of Mukachevo State University. This made it possible to systematize information about internal and external factors that affect the quality of the educational process. Its results allowed to determine the competitive advantages of professional training, to form strategic priorities (ways) and to get a clear algorithm of further actions. In particular: periodically review educational programs, permanently monitor the market of educational services and resources of Mukachevo State University, systematically take measures to ensure the quality of educational services under the master's educational program «Educational Pedagogical Sciences: Management of Educational Institutions». At the same time, the analysis of the research results showed that the management of the quality of training of the future head of an educational institution depends on setting standards, updating educational programs, highly qualified staff, quality organization of the educational process and effective management.
Pedagogical Aspects of Improving the Psychophysiological Safety of Future Professionals
Authors:   Zaporizhzhya Polytechnic National University, Shmyrko Vira , Korobko Oleksandr ,   Zaporizhzhya Polytechnic National University, Troian Yuliia ,   Zaporizhzhya Polytechnic National University, Yakimtsov Yurii ,   Zaporizhzhya Polytechnic National University
Published: November 2021

The article is devoted to improving the quality of training on occupational safety and health in the context of national quarantine and distance learning. The need to integrate numerous, diverse studies related to the peculiarities of becoming a specialist, combining psychological and psychophysiological aspects of this problem and developing a holistic system of psychological support for all stages of becoming a specialist. It is shown that in ergatic systems specialists together with professional knowledge and skills must have special abilities, competencies, flexibility, dynamism, creativity in professional activities, independence in finding and assimilating new information and new professional experience, make adequate decisions in "non-standard" situations. in conditions of lack of time and have the skills of optimal interaction with other participants in the production process in joint professional activities in the team. It is noted that to obtain a sustainable learning outcome is possible only taking into account the psychophysiological characteristics of the student, his character defects and stereotypes of behavior in normal and extreme conditions. The method of psychological testing and analysis of the obtained results is offered. After passing all the proposed tests, the teacher receives a psychological portrait of each individual student and has the opportunity to adjust the curriculum and methodological approaches to ensure maximum mastery of theoretical material and practical skills of future professionals.
Organization of Research Work of Applicants for the Second Level of Higher Education in the Specialty «017 Physical Culture and Sports»
Authors:   State Institution Luhansk Taras Shevchenko National University, Pavliuk Olena
Published: November 2021

The article «Organization of research work of applicants of the second level of higher education in the specialty «017 Physical Culture and Sports» reveals the features of the organization of research activities of applicants of the second (master's) level of higher education in the field. It is proved that research work is an integral part of the educational process in higher education institutions and is provided by a number of legal documents and is implemented by specially organized activities of the educational institution, and directly in the study of general and professional educational components. It is noted that special importance in the research work of applicants for the second level of higher education belongs to the process of its organization. The list of normative-legal documents regulating scientific activity in institutions of higher education is specified, namely: laws of Ukraine; decrees of the President of Ukraine; normative and legal documents of the Verkhovna Rada of Ukraine, the Cabinet of Ministers of Ukraine, the Ministry of Education and Science of Ukraine; Statute and Concept of scientific activity of educational institution; orders of the rector; The standard of higher education of Ukraine, etc. It is established that the unsurpassed responsibility for research activities in higher education institutions rests with the educational institution and directly on the organization and conduct of educational components of a clearly expressed professional research orientation. It is proved that the organization of research work in higher education institutions, and directly in the specialty «017 Physical Culture and Sports» in modern conditions is provided by: legal documents, and directly approved and implemented by the Standard of higher education of the second (master's) level of higher education; creation of appropriate material and technical research conditions by higher education institutions; active participation of research supervisors and interest of researchers.
The Structure of Professional Competence of the Future Translator
Authors:   State Institution Luhansk Taras Shevchenko National University, Korinska Olha
Published: November 2021

The article reveals the concept and structure of professional competence of the future translator. The definitions of «competence» and «competence» are given as key concepts of the competence approach to education and professional activity. It is also said that the professional competence of the future translator combines knowledge-operational and personal components, each of which contains the key criteria of the readiness for the professional activity of a first-class specialist in the field of translation. The main types of competencies that are part of the structure of a translator's professional competence are presented, among which translation, personal and strategic are especially important.
Preparation of Future Teachers for the Formation of Information-Digital Competence of Primary School Age Students Through the Prism of a Competence-based Approach
Authors:   State Institution Luhansk Taras Shevchenko National University, Sinenko Kseniia
Published: November 2021

The article is devoted to the actual problem of the professional training of future primary school teachers for the formation information-digital competence of primary school age students from the point of view of the competence-based approach. The urgency of the problem under study has been proved, taking into account the transformation processes taking place in society, in particular: digitalization, updating the content of education, the impact of the consequences of a global pandemic, etc. The essence of the concepts «competence», «competence-based approach», «information-digital competence» has been determined. The priority of the competence-based approach to the problem of professional training of future primary school teachers, including the formation of various competencies of primary school age students, is noted. The leading competencies that make up the information-digital competence of a primary school teacher have been determined (the ability to: navigate the information space, search and critically evaluate information, operate it in professional activities; effectively use existing and create (if necessary) new electronic (digital) educational resources, use digital technologies in the educational process) and a primary school age students (the ability: to understand the essence of information, analyze it, search in different sources and critically reflect on it; to use media for educational purposes; to effective communication on the Internet; to create and distribute various content on the network Internet).
Extraction of New Applicable Dimensionless Relations in the Wedge Impact Problem Using WCSPH Method
Authors: Gerdabi Jafar , Nikseresht Amir H. , Esmaeili Sikarudi Mohammad A.
Published: November 2021

Impact problem associated with water entry of a wedge has important applications in various aspects of naval architecture and ocean engineering. In the present study, the 2DOF (2 Degrees of Freedom) wedge impact problem into the water with various wedge deadrise angles and impact velocities is investigated using Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) method. Artificial viscosity and density correction are used to create stability and also to prevent the penetration of fluid particles into the solid boundary. Solving the impact problem is very time-consuming, therefore extracting new mathematical relations can be very useful to calculate some important and applicable parameters in a certain range of wedge angles and impact velocities. In the present research, some new dimensionless applicable relations using the Buckingham π theorem are extracted to investigate important parameters such as acceleration and slamming force in general cases of a wedge impact problem. Then, these mathematical relations are validated by the results obtained from the simulations.
Direct Actuation of Large Sized Valves by a Hydraulically Relieved Electromechanical Actuation System
Authors: Vonderbank Tobias , Laßl Chavez Pierre Marc , Schmitz Katharina
Published: November 2021

Extensive actuation forces and strokes are required for the actuation of large sized valves normally implemented in high power hydraulic systems. A hydraulically piloted operation is, for now, the most suitable solution and state of the art. However, there are some applications where electromechanical valve actuation systems are at advantage against common pilot operation systems. In this contribution it is analyzed in which cases the application of electro-mechanical actuators can be of advantage and why displacement-controlled systems may be one of these applications. A novel electromechanical valve actuation system for large sized 4/3-way directional control valves for the use in displacement-controlled systems is presented. This new actuation system is characterized by a hydraulic relief of the centering springs. Therefore, the springs are only active in safety-critical conditions, such as a power outage. Since the actuator is not working against the spring force during every displacement, the necessary actuation force is reduced drastically. Thus, common electromechanical actuators can be used. In case of a power outage, the spring relief is deactivated causing the stored energy to center the spool in its neutral position. The performance of the novel actuation system is examined through measurements conducted on a manufactured demonstrator for valves of nominal size 25 with a flow rate of up to 600 l/min.
Extended Analysis of a Valve-Controlled System with Multi-Chamber Actuator
Authors: Raduenz Henrique , Ericson Liselott , Heybroek Kim , J. De. Negri Victor , Krus Petter
Published: November 2021

This paper outlines an extended analysis on how multi-chamber actuators can improve the efficiency of valve-controlled systems. Resistive control is a major source of energy losses in valve-controlled systems that share the same pump to drive multiple loads. By combining different chambers, the load on multi-chamber actuators can be transformed into different pressure and flow rate levels. This allows the adaptation of its load to the loads on other actuators. This can lead to a reduction of resistive control energy losses that occur between pump and actuators when driven simultaneously. As a case study to highlight how the system efficiency can be improved, a load sensing system with a conventional and a multi-chamber actuator is analysed. The equations that describe the system steady state behaviour are presented to evaluate the effect of the load transformations on the system efficiency. A disadvantage of such architecture is the fact that load transformations result in different actuator speeds. To reduce this effect, a compensation factor for the command signal to the proportional valve is presented. The highlight from this paper is the potential for efficiency improvement enabled by the adoption of multi-chamber actuators in a valve-controlled architecture. Further research is required for the selection of number of chambers and their areas since they directly affect the system efficiency.
A Review on Audio Encryption Algorithms Using Chaos Maps-Based Techniques
Authors: Albahrani Ekhlas Abbas , Alshekly Tayseer Karam , Lafta Sadeq H.
Published: November 2021

Due to the quick improvement in digital communications and multimedia applications during recent periods up to the current time, data protection of digital data such as image, audio and video becomes a significant challenge. The security of audio data that transfer through different networks was rated as a preferred research field in the preceding years. This review covers the recent contribution for audio encryption and gives the most evaluations for audio encryption algorithm involving security analysis, computational complexity and quality analysis and their requirements. This paper fundamentally concentrates on displaying the different types of audio encryption and decryption techniques based on chaotic maps. Digital and analog audio algorithms were displayed, discussed and compared with the illustration of the important features and drawbacks. Various digital and audio proposed projects for audio encryption using chaotic maps have been covered, which they showed extreme sensitivity to initial conditions, unpredictability and conducting in a quasi-random manner. A comparison among the proposed algorithms in the key space, chaotic maps sensitivity and statistical analysis were provided.
A Rare Case of a Knee Septic Arthritis by Burkholderia pseudomallei : A Case Report from a Tertiary Care Hospital of Andaman and Nicobar Island
Authors: Deb Sudip , Singh Mohit , Choudhary Jyoti , Jain Vijay Kumar , Kumar Satish
Published: November 2021

Introduction: Melioidosis is an infection caused by the bacterium Burkholderia pseudomallei, which is more frequent in Southeast Asia and Australia but less prevalent in India. Melioidosis-related septic arthritis is extremely rare and should be considered a differential diagnosis in any patient presenting with septic arthritis in endemic locations.

Case Report: Here is a case report of a 42-year-old male from the Andaman and Nicobar Islands who presented with a history of fever along with knee swelling. He had a history of uncontrolled Diabetes Mellitus. Following an emergency arthrotomy, a synovial fluid culture revealed B. pseudomallei, and the patient gradually recovered after receiving ceftazidime via parenteral administration.

Conclusion: This case not only highlights the possibilities of Melioidotic septic arthritis but also validates the importance of prompt administration of appropriate antibiotics for faster recovery from the rare organism B. pseudomallei.

Keywords: Septic arthritis, Burkholderia pseudomallei, Melioidosis.
An Uncommon Presentation of Fracture-dislocation of the 4th and 5th Carpometacarpal Joints with Volar Displacement and its Management
Authors: Jawaharlal Nikhil , Ramsingh Vasanthakumar , Bhalaik Vijaya
Published: November 2021

Introduction: Carpo-metacarpal joint fracture-dislocations are rare injuries. They constitute less than 1% of all hand injuries [1]. They often go unnoticed [2]. Of these, dorsal fracture-dislocations on the ulnar side are more commonly seen [3] because of the greater stabilizing dorsal structures. Volar fracture-dislocations are very rare and difficult to diagnose for which, one should have a keen eye on.

Case Report: This is a case of a 51-year-old female with a closed injury to her wrist. With clinical suspicion and appropriate radiographs fracture-dislocation of the 4th and 5th carpometacarpal joints with volar displacement was diagnosed. She underwent closed reduction and percutaneous Kirschner wire fixation, followed by 6 weeks of immobilization. At the final follow-up in 4 months, the patient was noted to have a satisfactory outcome following intense physiotherapy.

Conclusion: Fourth and fifth carpometacarpal joint fracture-dislocations of the fingers are unique; their diagnosis can be challenging and often overlooked [4], which if missed can have very poor outcomes. The functional prognosis depends on the precocity of diagnosis and appropriate reduction and vigorous rehabilitation.

Keywords: Carpometacarpal joint, fracture-dislocation, volar displacement, wrist injury.
Fashioning Osteochondral Allograft for Humeral Head Defects in Reverse Hill-Sachs Lesions – A Proposed Surgical Technique
Authors: Dubey Vivek , Seyed-Safi Parisah , Makki Daoud
Published: November 2021

Introduction:Posterior glenohumeral joint dislocations with associated bony lesions are challenging to treat; namely, reverse Hill-Sachs’s lesions increase humeral head excursion predisposing to recurrent dislocations. To add to the complexity of management, posterior shoulder dislocations are often missed on plain radiographs, leading to chronicity in presentation.

Case Report:We describe here our technique in our case series of three patients. Case I, 32 years, gentleman, presented 3 days after injury. He had a locked posterior dislocation of shoulder which he sustained while he fell asleep and hit a glass table. Shoulder was not reducible in emergency department. Reverse Hill- Sachs’s lesion involved 40% of humeral head. Case II, a 54- years- old gentleman, a keen gym trainer . Following sudden withdrawal of diazepam, he woke up lying on the floor and started experiencing shoulder pain. He presented a week following the injury. The dislocated shoulder could not be reduced in emergency department. Bony defect involved 50% of humeral head. Case III, 45 years gentleman who fell off from bike, presented on the same day to the emergency department. The dislocated shoulder was reduced. Defect size was 40% of humeral head. A thorough physical and radiological examination was performed to evaluate the lesion. Delto-pectoral approach was utilized for surgical exposure. Once fully assessed, the lesion is outlined and an oscillating saw is used to create uniform edges - – a regular “orange slice”- shaped defect. The prepared defect size is measured. Calcium phosphate cement is used to fill the defect and form a mould that represents the dimensions of allograft required to recreate the native sphericity of the humeral head. This mould then acts as a reference when fashioning the osteochondral femoral allograft to make sure this fits the defect anatomically. Once the graft is prepared, it is placed into the defect in the correct orientation and fixed in situ using headless s
A Case Report of Humerus Shaft Osteomyelitis Secondary to Local Skin Infection Treated with Saucerization.
Authors: Pawar Eknath , Kondewar Pranay , Atal Shubham , Sadar Amey , Sakhare Vaibhav , Pande Kartik
Published: November 2021

Introduction:Osteomyelitis of the humerus shaft after local skin infection is rare clinical entity, all the principles of tibia and femur osteomyelitis are used in the humerus osteomyelitis. Early detection is best done by the magnetic resonance imaging. Surgical debridement and curettage with IV antibiotics gives good clinical outcome in the patient.

Case Report:A 35-year-old female presented with discharging sinus over posterior aspect of the humerus for 1 year. Diagnosis done based on X-ray and clinical examination. The patient managed with local debridement and saucerization, on follow-up patient is doing all the daily activities and no sign of recurrence at 18 months post-operative.

Conclusion:Local debridement saucerization and course of IV antibiotics according to culture sensitivity give good clinical outcome in cases of humerus osteomyelitis.

Keywords:Humerus, osteomyelitis, bone infections, saucerization, antibiotics.
Rare Presentation of Ulnar Nerve Palsy in Closed Both Bone Forearm Fracture in Pediatric Population
Authors: Toor Rajan , Antao Nicholas , Ghag Nitin
Published: November 2021

Introduction:Ulnar nerve injury in closed both bone forearm fracture is rare. Most nerve injuries are neuropraxia and rarely the nerve is trapped or is transected. Most of the time recovery is spontaneous but sometimes requires surgical exploration. We are reporting a case of a 14-year-old boy with closed both bone forearm fracture with ulnar nerve palsy due to entrapment and laceration between ulnar bone fracture fragment.

Case Report:A 14-year-old boy presented in emergency department elsewhere with a left forearm closed injury due to fall while playing where he was diagnosed with both bone forearm shaft fracture with ulnar nerve palsy and was given an above elbow slab. After 3 days, the patient presented to our outpatient department (OPD) with completely absent sensation over little finger, ulnar aspect of ring finger, and ulnar clawing. No signs of compartment syndrome in the form of tense swelling or stretch pain were seen. There was a suspected ulnar nerve injury for which patient was admitted and posted for fracture fixation and exploration of the nerve in emergency which showed lacerated ulnar nerve trapped in fracture fragment. Open reduction and internal fixation with ulnar plating and radius titanium elastic nailing was done by orthopedic surgeon while ulnar nerve neurolysis and micro repair was subsequently done by plastic surgeon. There was no neurological recovery immediately post-operatively. Patient was discharged after 48 h and called for regular follow-up in OPD to assess fracture union and neurological recovery. There was gradual neurological recovery over the period of time. Complete motor and sensory recovery took place in 4 months.

Conclusion:Ulnar nerve injury associated with close both bone forearm fracture is uncommon. They are usually associated with a contusion for which the treatment is basically conservative. Immediate nerve exploration and fracture fixation should be reserved for suspicious nerve laceration or entrapment within displa
Management of Neglected Peroneal Tendon Dislocation of Iatrogenic Etiology: A Case Report
Authors: Digge Vijaykumar , Kar Santanu , Sugumar Pon Aravindhan A , Saurabh Suman , Ansari Mohammed Tahir , Jeyaraman Madhan
Published: November 2021

Introduction:Neglected peroneal tendon dislocation with iatrogenic etiology has been rarely reported in the literature and its management has not been fully understood to date.

Case Report:We present a case of a 25-year-old male who presented with pain over the posterolateral aspect of his left ankle which was diagnosed to be a case of neglected peroneal tendon dislocation of iatrogenic etiology. Peroneal groove deepening with superior retinaculum repair was done in the patient along with loose body removal and osteophyte excision. Subsequent fibrosis augmented with the deepening of the groove maintained peroneal tendon position in the retromalleolar groove. On post-operative follow-up, the patient was completely satisfied with relief of pain and no complications. He also regained full range of motion and could walk without support.

Conclusion:Surgical intervention of fibular groove deepening with superior peroneal retinaculum reconstruction results in an excellent outcome for neglected peroneal tendon dislocation

Keywords:Peroneal tendon, Superior peroneal retinaculum, Fibular groove.
A Stepwise Posterolateral Approach for Computed Tomography Guided C2 (Axis) Transpedicular Biopsy: A Technical Note
Authors: Sakhrekar Rajendra T , Bhilare Pramod D , Khurjekar Ketan S , Hadgaonkar Shailesh
Published: November 2021

Introduction: Minimally invasive percutaneous CT-guided biopsies of the spine are well established. Although, technical difficulties with CT-guided percutaneous intervention of the C2 body present due to the smaller size of the vertebral elements and potential injury of the critical adjacent structures such as Carotid arteries laterally, vertebral artery, and cervical nerve posterolaterally, pharynx and larynx anteriorly, and spinal cord in the cervical spinal canal. Routinely transoral approach is used for the percutaneous intervention of the C2 body. Literature on the posterolateral approach for biopsies of the C2 vertebral body is sparse as compared to other approaches. This case report presents a case of adenocarcinoma diagnosed with CT-guided percutaneous biopsy of the C2 body using a posterolateral approach under local anesthesia.

Case Report: A 70-year-old female presented to our outpatient clinic with complaints of progressively increasing neck pain with a visual analog score (VAS) 7/10. Neck pain was radiating to the base of the occiput and aggravated by neck movements. On clinical examination, there was axial tenderness at the base of the skull and the upper part of the cervical spine. Neurological examinations of sensory and power in all the limbs were normal. Systemic examination and laboratory parameters did not reveal any abnormality. X-rays and MRI revealed a fracture of the odontoid process with marrow edema with differentials of metastasis. PET scan revealed left lung lesion likely to be primary lesion and lesion in C2 vertebral body as likely metastasis. A minimally invasive percutaneous CT-guided posterolateral approach for biopsy proved moderately differentiated adenocarcinoma from the lung with metastasis to C2 vertebrae. The patient was started on an appropriate Chemotherapy regimen as per the Immunohistochemistry (IHC) and Genomic studies with adjuvant radiotherapy.

Conclusion: Understanding the detailed anatomy prior to CT guided minimally
Chronic Multifocal Osteomyelitis – Is Mycobacterium avium Complex Really the Culprit? A Case Report in an Adult Female
Authors: Johnson Jordan E. , Gupton Marco S. , Finn Jordan , Deivaraju Chenthuran
Published: November 2021

Introduction:There are reports which describe multiple lytic lesions seen on X-ray resulting from a non-tuberculous Mycobacterium skeletal infection in immunocompetent adults and children. AdditionallyIn addition, similar multifocal lesions have also been described in chronic recurrent multifocal osteomyelitis (CRMO) which is more common in children but has have rarely been reported in adults. We present a case of a 47-year-old female who presented with multiple osteolytic lesions and discuss how her diagnosis overlaps with CRMO and multifocal non-tuberculous osteomyelitis associated with Mycobacterium avium complex (MAC).

Case Report:A 47-year-old female presented with a mass at her left sternoclavicular joint. Biopsy of the lesion showed acute and chronic inflammation suggesting osteomyelitis. The patient was on intravenousIV antibiotics with some improvement. After three 3 ½ and a half months, she was having knee pain and imaging showed another lesion and a bone scan found a third. Delayed cultures grew Mycobacterium avium complexMAC but ultimately the patient improved when she was taking naproxen for multifocal osteomyelitis.

Conclusion:Multifocal lytic lesions on imaging in an adult can be multifocal osteomyelitis that, like in pediatric patients, may be treated best with nonsteroidal anti-inflammatory medications as with the patient in this case.

Keywords:Multifocal Osteomyelitis, Mycobacterium Avium Complex, Osteitis Multifocal Osteomyelitis, Mycobacterium avium complex, osteitis.
A Rare Presentation with Segmental Gap Non-union in Proximal Phalanx Fracture of Thumb in Child: A Case Report
Authors: Sharma Pankaj K. , Verma Vinit K. , Potalia Raj S.
Published: November 2021

Introduction:Traumatic injuries of to hand are not uncommon in the pediatric population and most of them are managed by conservative means and rarely surgical intervention required. There is a very rare incidence of delayed union or non-union in these fractures and found a very few numbers of sporadic cases documented in English literature.

Case Report:We described delayed presentation of post-traumatic gap non-union of proximal phalanx of thumb in a child who presented with severe disability of hand especially writing and grasping. He was managed as open reduction, tibial strut bone grafting, and internal fixation with crossed Kirchner wire and followed for a period of minimum of 2 years. The fracture united radiologically and healed well clinically, whereas functional outcomes were excellent. There was no difficulty in writing and activity of daily living with operated hand while having comparative cosmetic appearance to other hand.

Conclusion:Non-union of phalanx fractures are very rare in the pediatric population whereas excellent clinical and functional outcomes can be achieved with adequate stable fixation and autologous bone grafting.

Keywords:Gap non-union, proximal phalanx, fracture, skeletally immature, tibial strut graft
“Jahwari’s Position” – A Novel Operating Room Setup for Antegrade Humeral Nailing: Surgical Technique and Initial Experience
Authors: Jahwari Ahmed , Ummadisetty Madhusudhan , Othman Mohamed
Published: November 2021

Introduction:Ante Grade Humeral Nailing (AGHN) with traditional positioning causes crowding at the patient's head end, cramming for the surgeon and anaesthetist, scarcity of space available for the scrub nurse and X-ray technician, and neurovascular risks while performing distal interlocking. Minimal literature is available regarding the optimal position and set up in the operating theatre (OT). The primary objective was to describe, how effective novel Jahwari’s position is by assessing the ergonomics for OT personnel, OT time, and radiation exposure. A secondary objective was to evaluate the safety of inserting distal interlocking screws.

Case Report:The head of the patient is placed away from the anaesthetist and their equipment, which were placed at the foot end of the patient. The patients were connected to the anaesthesia machine with a long airway extension, which was anchored to the table. The C arm machine was brought from the contralateral side and did not have to be moved. The scrub nurse and the surgeon were placed at the head end of the patient. Pregnant patients, those aged <18 years, and those with open fractures were excluded from our study. A single consultant operated on all cases for standardization. OT time and radiation exposure were monitored.

Conclusion:Inspired by our use of this position for cervical spine patients for more than a decade, Jahwari’s position and setup were innovated. This setup gives ample room for the anaesthetist at the foot end. The surgeon and assistants are free from cramming at the head end. Complementarily, it provides ample space for the X-ray technician and scrubs nurse.

Keywords:Jahwari position, antegrade humeral nailing, modified lateral position.
Type II Odontoid Fractures Case Series: History of Seizures a Risk Factor for Failure of Non-operative Treatment of Type II Odontoid Fractures
Authors: Prevost Matthew A. , DeVine John G. , Agochukwu Uzondu F. , Rumley Jacob C.
Published: November 2021

Introduction:Odontoid fractures are one of the most common injuries to the cervical spine. Type II odontoid fracture treatment varies depending on age, co-morbidities, and fracture morphology. Treatment ranges from cervical orthosis to surgical intervention. Currently fractures with high non-union rates are considered for operative management which includes displacement of >6 mm, increasing age (>40-60 years), fracture gap >1 mm, delay in treatment >4 days, posterior re-displacement >2 mm, increased angulation, and history of smoking. While re-displacement of >2 mm has been associated with increased risk of non-union;, to the best of our knowledge, no studies have looked at the risk factors for re-displacement.

Case Report:We present two 26-year-old male patients who were found to have minimally displaced type II odontoid fractures initially treated in a cervical collar. These two patients were subsequently found to have displaced their odontoid fracture after having a documented seizure.

Conclusion:We suggest that a history of seizures be considered a risk factor for re-displacement of non-displaced type II odontoid fractures.

Keywords:Operative indications odontoid case report, Type II odontoid fracture, Displacement, Seizure, Odontoid fracture displacement, Nondisplaced type ? odontoid fracture.
Surgical Management of a Latissimus Dorsi Costal Tear in an Elite Female Handball Player: A Case Report
Authors: Leyes-Vence Manuel , Flores-Lozano Cesar , Roca-Sanchez Tomas , Belón-Pérez Pedro , Villarreal-Villarreal Gregorio
Published: November 2021

Introduction:Latissimus dorsi ruptures are rare injuries more commonly seen in elite overhead and hip throwers athletes. The most frequent mechanism of injury is indirect. The management of these injuries is unclear and controversial.

Case Report:In this case report we present a professional female handball player with an acute intramuscular/costal tear of the latissimus dorsi, managed operatively. The patient injured extremity was the dominant throwing arm with a palpable muscle gap of 3 cm. Operative treatment was taken and objective follow-up using UCLA shoulder rating scale and DASH scores; demonstrating a progressive improvement between day zero (UCLA 13pts and DASH 36.7 pts) and the final 6 months (UCLA 33pts and DASH 0.8 pts) follow up; returning to sport at 12 weeks.

Conclusion:Latissimus dorsi costal tears are uncommon injuries that can also be seen in hip throwing athletes. Surgical management should be considered if the dominant arm is affected and a 3cm muscle gap is present.

Keywords:Latissimus dorsi, latissimus dorsi tear, latissimus dorsi costal tear, surgical management.
La compañía de ferrocarriles de Zaragoza a Pamplona: robo de subvenciones y estafa piramidal
Authors: CASTELLVI NARBON DAVID CARLOS
Published: November 2021

En la construcción de la red ferroviaria en España hubo una notable participación del capital privado extranjero, pero también ayudas públicas muy generosas, sobre las que se ejerció muy poco control contable. En este trabajo se analizan las distintas fuentes de financiación de una de las principales empresas del país, la Compañía de Ferrocarriles de Zaragoza a Pamplona (FZP) durante su breve existencia como compañía independiente, desde 1860 hasta 1865. Las dos principales conclusiones son que la aportación del Estado para la construcción del ferrocarril fue mayor que la de los propios accionistas; pero que no llegó a la propia empresa porque ese dinero fue detraído, robado. La segunda conclusión es que, en realidad, aquella empresa era, desde el punto de vista de su rentabilidad, un esquema Ponzi; una simple estafa.
The Continuum of Support for Building Intimacy Knowledge in College for Students With Intellectual Disability
Authors: VanHorn Stinnett Chelsea , Plotner Anthony J. , Marshall Kathleen J.
Published: November 2021

Postsecondary education (PSE) programs allow for college students with intellectual disability to experience a higher level of autonomy in choice making, which they may not have experienced in their family home or high school. This includes choice making related to romantic and sexual relationships. The Continuum of Support for Intimacy Knowledge in College Survey (CoSIK-C) was used to examine how PSE programs support college students in building their intimacy knowledge. Types of resources and services used to build intimacy knowledge and the frequency and context in which support was provided were identified and varied across programs. Implications for practice and future research are provided.
Qualitative detection of amino acids in a mixture with terahertz spectroscopic imaging
Authors: Wang Bo , Meng Kun , Song Tian , Li Zeren
Published: November 2021

Terahertz time-domain spectroscopy (THz-TDS) is widely used in non-destructive testing and chemical identification due to the wide spectrum, low photon energy, distinctive absorption spectra, and higher intensity than other thermal radiators. Here, we propose a method to detect amino acids from a mixture at room temperature and in humid air. A THz-TDS spectrometer scans tablets of amino acid mixtures laid out on a polyethylene plate in transmission mode. The resulting spectroscopic imaging is then converted to probability maps (chemical maps), where the region containing the expected amino acid has higher pixel values, by a matrix manipulation with the matrix of absorption spectra. This approach is substantially resistant to air humidity and scattering caused by uneven grain sizes and is applicable to substances without strong absorption features. A classifier based on LeNet-5 is built to identify the subsection of the chemical map containing the expected substance, and the prediction reaches 100% accuracy for the testing dataset. The results of the classifier are compared with those of a support vector machine, whose accuracy is much lower due to its inferior ability to recognize complex patterns. The proposed method will enable us to qualitatively detect a component from an unknown mixture in a single measurement and will be useful for bio-molecule detection in real-life scenarios.
Spread spectrum ghost imaging
Authors: Liu Jinfen , Wang Le , Zhao Shengmei
Published: November 2021

Ghost imaging (GI) has attracted more and more attention due to its non-locality, however, there are still some obstacles to its practical applications. One problem is that the environmental interference, such as the time varying noise, greatly degrades the reconstructed images’ quality. In the paper, we propose a novel ghost imaging scheme based on the spread spectrum technique, named spread spectrum ghost imaging (SSGI) to overcome this problem. In the scheme, the traditional ghost imaging (TGI) system is considered as a communication system, where the light beam is regarded as a transmitter, whose intensity is first modulated by a designed direct sequence code, then followed by a spatial modulator to obtain the temporal-spatial speckle patterns. The speckle patterns are then projected onto the unknown object successively. The bucket detector in the TGI system is considered as a receiver. With the designed direct sequence code to despread the bucket value (named the computed bucket value), the image of the unknown object is finally reconstructed by the correlation between the modulated speckle patterns and corresponding computed bucket values. The numerical simulations and experimental results demonstrate that the proposed scheme has a stronger noise resistance capacity. Besides, the longer the length of the direct sequence code is, the better the performance SSGI has.
Highly fluorine and ytterbium doped polarization maintaining large mode area photonic crystal fiber via the sol-gel process
Authors: Wang Fan , Wang Meng , Shao Chongyun , Ren Jinjun , Zhang Lei , Wang Shikai , Chen Danping , Yu Chunlei , Feng Suya , Hu Lili
Published: November 2021

Highly Yb-doped silica glass with low refractive index for fabrication of Yb-doped large-mode-area photonic crystal fiber (LMA PCF) is in favor of decreasing fiber length and thus increasing the threshold of nonlinear effects in pulse laser amplification. Accordingly, fluorine incorporation in highly Yb-doped silica glass is vitally important to compensate the sharp increase in refractive index caused by ytterbium and aluminum ions. In this work, the fluorine doping concentration in Yb/Al/P/F co-doped silica glass was significantly improved by a modified sol-gel method combined with high temperature sintering. The effects of fluorine doping on glass structure have been investigated in details by Raman spectra, nuclear magnetic resonance (NMR) and advanced pulse electron paramagnetic resonance (EPR) measurements. The incorporation of fluorine yields Si-F bonds and Yb-F bonds formation and leads to the mild change in spectroscopic properties. An optimized silica core glass rod with high Yb (0.77 wt.%) and fluorine (0.8 wt.%) doping concentration, low refractive index and acceptable optical quality was prepared. Based on the highly fluorine and ytterbium doped silica core glass, a polarization maintaining (PM) photonic crystal fiber with 40 µm core was prepared and the pump absorption coefficient at 976 nm was ∼6.5 dB/m. An average amplified power of 103 W was achieved from a 2-m-long PCF with the bend diameter of 23 cm. The slope efficiency (with respect to pump power) was 52% with laser beam quality factor M2 of 1.46.
Meta-hologram enabled by a double-face copper-cladded metasurface based on reflection–transmission amplitude coding
Authors: Zhu Lei , Zhou Wenjuan , Dong Liang , Guan Chunsheng , Shang Guanyu , Ding Xumin , Burokur Shah Nawaz , Wu Qun
Published: November 2021

Here, we propose a double-face copper-cladded meta-hologram that can
efficiently manipulate the amplitude of electromagnetic waves in both
transmission and reflection spaces, depending on the polarization
state of the incident electromagnetic wave. The proposed meta-hologram
is validated by encoding the transmission–reflection amplitude
information of two independent images into a single metasurface. The
holographic images obtained from measurements agree qualitatively with
simulation results. The proposed metasurface presents a novel, to the
best of our knowledge, scheme for electromagnetic wavefront control in
the whole space and overcomes the limitations of narrow frequency band
operation.
Resolving plasmonic hotspots by label-free super-resolution microscopy
Authors: Cheng Xue , Liu Congyue , Zhang Guorui , Liu Wei , Wang Ju , Duan Yiqun , Chen Jianjun , Yang Hong , Wang Shufeng
Published: November 2021

The plasmonic hotspot of metal nanostructures has small dimension far beyond the optical diffraction limit. When trying to locate the hotspot using fluorescent probes, the localization is significantly distorted due to the coupling of emission and surface plasmon. A label-free technique can solve the problem, which uses hotspot emission as the native probe. We demonstrate a super-resolution microscopy investigation based on this idea. By modulating hotspot emission of crossed silver nanowires, which have a pair of plasmonic hotspots approximately 100 nm apart at the intersection, we precisely locate and separate them with nanometer precision. This label-free technique could be applied for analyzing hotspot distribution with high efficiency and precision.
Wavelength-tunable 1104 nm nonlinear amplifier loop mirror laser based on a polarization-maintaining double-cladding fiber
Authors: Gao Kong , Liu Yizhou , Qiao Wenchao , Song Yuzhi , Zhao Xian , Wang Aimin , Li Tao
Published: November 2021

An ytterbium-doped stretched-pulse mode-locked fiber oscillator was fabricated by applying a nonlinear amplifier loop mirror (NALM). The fiber cavity was built using a large-mode area (LMA) polarization-maintaining (PM) double-cladding (DC) fiber. The central wavelength of the generated 24.7 MHz laser can be modified from 1034 to 1104 nm by tuning the intra-cavity loss. The output power of this laser with a wavelength of 1104 nm at the transmission and reflection ports is 7.61 and 0.33 mW, respectively. The corresponding compressed pulse durations are 192 and 187 fs, which are 1.54 and 1.02 times the Fourier-transform-limited pulse duration, respectively.