Most Viewed Articles

 

Precessional Motion Emerging from Relativistic Component of External Force

Published on: 25th October, 2024

The external force in the relativistic equation of motion can be separated into two components: Fr and Fp. The first is expressed by the physical force divided by the square of the relativistic Lorentz factor, i.e γ2. This force dominates for non-relativistic velocities and vanishes for velocities approaching the speed of light c. On the other hand, the second term increases from zero with increasing velocity and dominates for velocities close to c. It is then a purely relativistic component. The characteristic feature of this component is its zero power, Fp ⋅ v = 0, but it is responsible for the relativistic precession. The effect was confirmed by numerical solutions of the equation of motion. Relativistic formulas for the precession frequency for point objects moving in selected fields of central forces were also derived analytically. It has been shown that for weak gravitational interactions, the correction for relativistic precession is small, negligibly small for Earth, and relatively small, though measurable, for Mercury. In turn, for the microworld and electrostatic forces (e.g., for the hydrogen atom), relativistic precession can fundamentally affect the movement of the electron.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Analysis of Pyogenic Liver Abscesses

Published on: 19th January, 2018

OCLC Number/Unique Identifier: 7325071770

Background: Pyogenic liver abscesses (PLA) are frequent in immunosuppressed patients. We review the characteristics of patients with PLA at a tertiary academic Spanish hospital in Asturias. Methods: A retrospective observational study for 10 years, between 2006-2015. Epidemiological, clinical, analytical characteristics, treatment and hospital stay of the patients with PLA were analyzed. Results: 99 patients, 62 (62.6%) men, with age ≥65 years (72.7%). The most frequent etiology was: Biliary (40%), postsurgical (15%) and intestinal origin (11%). The most frequent clinical signs were fever, showing significant differences, abdominal pain (p=0.001) and nausea (p=0.02) between biliary PLA and the rest of the PLA. Microbiological results were confirmed in 63% (62 cases). All were treated with antibiotic therapy, along with percutaneous drainage (44.4% (44 cases)); and surgical drainage (12.1% (12 cases)). The overall mean stay was 23.1 days without significant differences between those treated with percutaneous drainage or surgical drainage. Conclusion: PLA predominate in patients ≥65 years. Biliary PLA are the most frequent, diagnosed at an older age than the intestinal PLA (p=0.005). - The treatment is based on systemic antibiotherapy and percutaneous drainage, especially in PLA only >5cm (p=0.019). - There are no significant differences in average stay of patients treated with percutaneous drainage or surgical drainage.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Clinical significance of Vibration Anesthesia on reducing pain of Ring-Block (Subcutaneous Injections) in the patients undergoing Hair Restoration Surgery

Published on: 18th October, 2017

OCLC Number/Unique Identifier: 7317634401

Pain is a complex phenomenon which is unpleasant. Different cosmetic procedures are associated with varying degrees of pain. Various modalities are adopted to decrease the severity of pain. The commonly used is the administration of analgesics (opioid or non-steroidal). The pain is carried to the brain by pain fibres. There are various theories about the pain [1,2]. Many attempts have been undertaken to find the modalities which decrease the perception of pain by the brain. The famous ‘gate theory’ was proposed in 1965 by Melzack et al. [3]. It was proposed that the pain experience can be reduced by the activation of nerve fibres that conduct non-toxic stimuli. The theory suggested that the stimulation of larger diameter fibres (A-beta) can close a neural ‘gate’ to nocioceptive signals and can reduce the perception of the pain. The ‘gate’ is proposed to lie within the spinal cord/brainstem and inhibits the transmission of nocioceptive action potentials to higher centres in the central nervous system [4]. The “post-synaptic inhibitory and fascilitatory mechanism” provide a basis for explaining the pain reducing strategies such as rubbing the painful area or applying cold or vibration to decrease the perception of the pain. Various topical irritants used in a few ‘magic’ creams also work on the same principle. Every effort is made to decrease the perception of pain in cosmetic surgery procedures especially hair restoration. A surgeon who can perform a hair restoration without pain has an edge over his competitors. The potential patients undergoing hair restoration are very anxious about the pain level to be perceived during the procedure. Vibration anaesthesia is becoming increasing used in hair restoration to decrease pain perception. Various recent studies have demonstrated the effective use if vibrations to decrease the pain of local anaesthesia injections [5,7]. The pain of the injection has basically two components; the first is the actual needle prick and second is the discomfort felt due to the tissue stretch by the local anaesthetic drugs [8]. The following study was conducted to compare the pain level of ring block in the patients undergoing hair restoration with and without the use of vibration
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Forensic Aspects and Dilemmas in Gynecological Laparoscopy

Published on: 29th April, 2024

Gynecological laparoscopy has to be analyzed also in the context of complications that occur during the surgical procedures. Complications occur daily. For this reason, emphasis should be placed on lifelong continuous education and training. Given the risks and complications we face, we must be trained to deal with them. This improves the safety of laparoscopic operations. Without such certainty, gynecological laparoscopy would not be the method of choice in a minimally invasive approach. This requires significant commitment, effort, and responsibility. In this way, we provide our patients with the best and highest quality healthcare service. Likewise, with such an approach, the frequency of complications is reduced to a minimum. New perspectives and possibilities are associated with the application of robotic surgery.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Safety and effectiveness of laparoscopic management in 210 patients with erosion of adjustable Gastric banding

Published on: 21st November, 2017

OCLC Number/Unique Identifier: 7317595343

Background: The band erosion (BE) is defined as the partial or complete movement towards the lumen of the stomach, is also known as migration, gastric incorporation and gastric inclusion. The presentation of this complication involves failure of bariatric procedures being ineffective and consequently requires the removal of the laparoscopic adjustable gastric banding (LAGB), usually through laparoscopic surgery. The objective of this study is to describe the clinical presentation, diagnostic methods, surgical procedure, postoperative evolution in the integral treatment of BE. Material and Methods: We captured the data of patients with BE since January 2010 to October 2017. Database included the year of patient care, age, and sex, BMI before band placement, percentage of excess weight loss, number of device adjustments, clinical data and surgical procedure performed for resolution. Results: A total 379 LAGB complications were diagnosed in our Institution; 210 patients with BE were diagnosed and treated, the average age was 39 years; range from 19 to 66 years, sex was 178 women and 32 men. The diagnosis was endoscopic in the 210 patients (100%). The surgical procedure to solve the problem was: to remove the LAGB, the fistulous orifice was closed and patch of omentum. The hospital stay was 3-5 days. The motility was zero. Complications were minor in 3% of the 210 patients (fever, atelectasis, wound infection). One patient was re-operated for evolving to residual abscess. Conclusions: The BE is a serious failure in bariatric surgery. The resolution in this group of patients was to remove the band, direct closure of the fistulous orifice with patch of omentum. The surgical technique that was performed in this complication is safe, effective and easily reproducible.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

A Rare Consanguineous Case of Alazami Syndrome in a Jordanian Family: Clinical Presentation, Genetic Analysis, and Therapeutic Approaches - A Case Report

Published on: 7th May, 2024

Objective: Alazami syndrome (AS) is an infrequent genetic disorder inherited in an autosomal recessive pattern, characterized by the presence of multiple congenital abnormalities. This study explores a case of a 4-year-old girl with AS, examining symptoms, genetic factors, and treatment efficacy. Case report: A 4-year-old girl, born to consanguineous Jordanian parents, displayed dysmorphic features including low birth weight, microcephaly, hyperthyroidism, short stature, blue sclera, triangular-shaped face, deep-set eyes, narrow palpebral fissures, and a prominent forehead. Examination revealed height (92 cm) and weight (7.7 kg) below the 5th and 3rd percentiles respectively. Blood tests and renal ultrasound were normal. Whole exome sequencing (WES) identified a homozygous eight-base pair deletion within exon 5 of the LARP7 gene on chromosome 4q25, confirming the diagnosis of AS, an autosomal recessive disorder. This variant induces frameshift mutations leading to premature stop codons, suggesting a probable mechanism of illness via loss of function. Treatment involving growth monitoring and therapy led to significant improvements in height, weight, and communication skills within three months. Conclusion: We describe a rare autosomal recessive AS case due to consanguinity, with a frameshift mutation in the LARP7 gene found via WES. Our AS treatment program effectively alleviates symptoms and enhances developmental progress.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Treatment Options for Congenital Dyserythropoietic Anemias (CDAs): Advances in Bone Marrow Transplantation, Gene Therapy, and Targeted Therapies

Published on: 30th November, 2024

Congenital Dyserythropoietic Anaemia (CDA) is a rare genetic disorder that affects the maturation of red blood cells. The disorder is classified into different types, with a prevalence ranging from 1 in 100,000 to 1 in 1,000,000 individuals. Treatment strategies are designed with the primary focus on symptom management, the prevention and treatment of complications, and the underlying disease pathophysiology. The advent of bone marrow transplantation, gene therapy, and targeted therapies has considerably expanded the scope for therapeutic intervention in CDAs. Supportive care, including blood transfusions and iron chelation therapy, has demonstrated efficacy in managing iron overload and improving overall survival rates. The potential of gene therapy, targeted therapies, and hematopoietic growth factors in the treatment of CDA is currently being investigated. Further research and clinical trials are required to develop more effective and personalized therapeutic interventions.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Associations of Burnout, Secondary Traumatic Stress and Individual Differences among Correctional Psychologists`

Published on: 25th January, 2017

OCLC Number/Unique Identifier: 7286351074

Objective: The aim of the present study was to examine associations between secondary traumatic stress (ST), job burnout (BO) and several psychological variables such as world assumptions and locus of control in correctional psychologists. Methods: This study utilized information provided by 87 currently prac¬ticing correctional mental health providers (psychologists) in the correctional settings across Russia in St.-Petersburg, Belgorod, Vladimir, Kaluga, Ryazan, etc. The sample included 51 men, 36 women. The mean age of participants was 34.9±6.9 (ranging from 25 to 48 years). Participants reported working a mean of 6.23±3.5 years (ranging from 3 months to 15 years) in a correc¬tional setting. Subjects were assessed with Maslach Burnout Inventory-Human Services Survey (MBI-HSS), Secondary Traumatic Stress Scale (STSS), World Assumption Scale (WAS) and Locus of Control (LC) Scale. Three sets of statistical analysis were provided: ANOVAs between- group comparisons with STS and BO as factors and Spearman correlation analyses. Results: The results of our study reveal that burnout and secondary traumatic stress in correctional psychologists are significantly positively related and thus may be exacerbated by each other. BO is significantly negatively associated with WAS benevolence scale and the WAS self worth scale and STS is significantly negatively associated with WAS benevolence scale and the WAS meaningfulness scale. However, LC and its components are negatively associated with BO, but not with STS. Conclusion: The main future direction of our research is to construct nonlinear model of burnout with STS, WA and LC components as predictors, identify its parameters and make its validation.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Various Theories of Fast and Ultrafast Magnetization Dynamics

Published on: 21st November, 2024

The background of my paper is that magnetization dynamics is a very important subject of basic and technological research. The purpose of the paper is to review various theories of magnetization dynamics. There are many important technological applications of magnetization dynamics.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

Effect of pre-treatments and drying methods on Moisture percentage of dried Tomato Slices

Published on: 14th August, 2017

OCLC Number/Unique Identifier: 7286355298

A study was undertaken the effect of pretreatments and drying methods on quality parameters of tomato slices with respect to storage using two factors as treatments i.e. 5 pre-treatment levels (P1-Peeled by hot water dip blanching, P2-Peeled by hot brine dip blanching, P3-Unpeeled by hot water blanching, P4-Unpeeled by hot brine blanching, P5-Control- No peeled and no blanched) and 2 drying methods i.e. (D1-Tray drying, D2-Sun drying) with completely randomized design of factorial concept with three repetitions at Post Graduate Laboratory of Horticulture Department, College of Agriculture, Junagadh Agricultural University, Junagadh. The quality was evaluated on the basis of physicochemical (i.e. drying time (h) and moisture content (%) at 1, 20, 40, 60 and 80th day of storage. Result of study depicts that the pretreatment P2 i.e. peeling of tomato by hot brine dip blanching followed by tray drying (D2) recorded minimum (14.50 h) drying time and the minimum changes in moisture content (4.00%-6.54%) observed in treatment P1 at 1st to 80th day of storage, respectively.
Cite this ArticleCrossMarkPublonsHarvard Library HOLLISGrowKudosResearchGateBase SearchOAI PMHAcademic MicrosoftScilitSemantic ScholarUniversite de ParisUW LibrariesSJSU King LibrarySJSU King LibraryNUS LibraryMcGillDET KGL BIBLiOTEKJCU DiscoveryUniversidad De LimaWorldCatVU on WorldCat

A-Z Journals

Help ?

HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.

If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."