Digital Commons Network^™

Mmd‑1.0‑Reinforced Multi‑Modal Detector — Universal Hazard + Medical Detector, Michael Victor Caldwell Mr.

Defensive Publications Series

ABSTRACT

MMD‑1.0‑Reinforced is a universal multi‑modal detector capable of sensing hazard, medical, environmental, neuro, oncology, outbreak, and space signals in one unified engine.

It integrates multi‑domain sensor arrays, resonance stabilization, structural gyroid housing, and cross‑stack detection layers for research institutions working in hazard mitigation, medical research, environmental resilience, and aerospace detection.

MMD is designed to be prototype‑ready, lab‑ready, and field‑ready.

Adult-Onset Iga Vasculitis Initially Attributed To A Cutaneous Drug Reaction And Diverticulitis, Leila C. Tou, Catherine Grace P. Hobayan, Shane Devine, Sarah Koraym

Journal of Community Hospital Internal Medicine Perspectives

Immunoglobulin A vasculitis (IgAV), formerly Henoch–Schönlein purpura, is a small-vessel vasculitis characterized by palpable purpura, arthralgias, gastrointestinal involvement, and renal disease. Although IgAV is common in children, adult-onset disease is rare and may be associated with more severe manifestations, particularly renal involvement. In adults, IgAV may be difficult to recognize because of overlap with more common gastrointestinal, infectious, or medication-related conditions. We present a case of adult-onset IgAV initially attributed to presumed diverticulitis and later to a drug eruption following antibiotic exposure. This case highlights diagnostic pitfalls and the importance of early recognition and renal surveillance.

Rare Presentation Of Sequential Mucosa-Associated Lymphoid Tissue Lymphoma, Follicular Lymphoma, And Chronic Lymphocytic Leukemia: A Case-Based Review, Khushi J. Desai, Ansy H. Patel, Patrick T. O’Dowd, Joseph A. Tworek, Preeti G. Misra, Li Ding

Journal of Community Hospital Internal Medicine Perspectives

Introduction: Occurrence of 2 (or more) Hodgkin's and non-Hodgkin's lymphoma concordantly or sequentially in a single patient is very rare.

Case: An 88-year-old Italian male with a history of mucosa-associated lymphoid tissue (MALT) lymphoma in remission and indolent follicular lymphoma under surveillance, presented with acute autoimmune hemolytic anemia (AIHA). While initially speculated to be secondary to follicular lymphoma relapse, stable mesenteric lymphadenopathy compared to prior CT abdomen/pelvis and smudge cells on peripheral smear prompted further evaluation. Peripheral blood flow cytometry indicated a mature B-cell neoplasm, which was confirmed to be chronic lymphocytic leukemia (CLL) with a bone marrow biopsy. Minimal …

Progressive Facial Swelling And Airway Symptoms Revealing A Deep Neck Abscess With Atypical Microbiology, Drew Knight, Hakam Sulaiman, Arash Bakian, Ilya Fonarov

Journal of Community Hospital Internal Medicine Perspectives

Deep neck abscesses have become less common in the antibiotic era; yet, they still pose major risks of morbidity and mortality if not addressed appropriately. Their proximity to the upper respiratory tract and mediastinal structures further exacerbates this risk. We present the case of a 56-year-old man with a medical history of type 2 diabetes mellitus, who exhibited a two-month history of recurrent left-sided facial edema, pain, and dysphagia. Computed tomography imaging confirmed a substantial fluid collection extending from the submandibular region into the mid-cervical area, from which aspiration yielded 110 mL of purulent material. Cultures indicated Cutibacterium acnes, …

Left-Ventricular Non-Compaction Cardiomyopathy Presenting With Atrial Flutter With Rapid Ventricular Response, Sahil Ghay, Baneet Kaur, J. Armando Talavera, Koushik Sanku, Viky S. Loescher, Julien A. Exposito

Journal of Community Hospital Internal Medicine Perspectives

Left ventricular non-compaction cardiomyopathy (LVNC) is a rare genetic cardiomyopathy characterized by prominent trabeculations and deep recesses that predispose to arrhythmias and heart failure. We describe a 42-year-old man with persistent tachycardia and exertional fatigue found to have CTI-dependent atrial flutter with 2:1 conduction. Transesophageal echocardiography showed severe biventricular dysfunction with an ejection fraction of 15%, and cardiac MRI confirmed LVNC with a non-compacted to compacted ratio of 3.3. After successful ablation and normal coronary angiography, he was diagnosed with LVNC. This case highlights an unusual presentation of LVNC with typical atrial flutter and underscores the value of cardiac MRI …

Rasmussen’S Aneurysm: A Rare But Life-Threatening Complication Of Pulmonary Tuberculosis – A Case Report., Karan Puri

Journal of Community Hospital Internal Medicine Perspectives

Rasmussen’s aneurysm is a rare but potentially fatal complication of pulmonary tuberculosis. It represents a pseudoaneurysm of a pulmonary arterial branch caused by erosion of the arterial wall secondary to chronic inflammation within a tuberculosis cavity. Although uncommon, especially in non-endemic regions, rupture of this aneurysm can result in massive hemoptysis and carries a high mortality if not promptly recognized and managed. We report a case of a healthcare worker in the United States, a non-endemic region, who presented with massive, life-threatening hemoptysis. She was found to have active pulmonary tuberculosis. Computed tomography angiography demonstrated a 10-mm pseudoaneurysm arising from …

Rectal Dieulafoy Lesion With Severe Hematochezia In A Warfarin-Treated Patient, Carlos Elizondo Alatorre, Maria Gabriela Rubianes Guerrero, Julio C Valencia Manrique, Jennifer Harley

Journal of Community Hospital Internal Medicine Perspectives

Dieulafoy lesions (DLs) are rare vascular malformations in the gastrointestinal tract that often present with gastrointestinal bleeding, most commonly in the stomach. Rectal DLs are exceptionally rare, representing less than 2% of cases. Warfarin use increases the risk for bleeding and management represents a challenge. We present a case of a 60-year-old male on chronic warfarin therapy who presented with severe hematochezia due to a rectal DL, requiring more than one colonoscopy and prothrombin complex concentrate (PCC) administration. While guidelines recommend PCC over fresh frozen plasma (FFP), they acknowledge that this is based on very low certainty of evidence.

A Case Of Anti-Srp Immune-Mediated Necrotizing Myopathy Following Suspected Coxsackie B4 Infection: Exploring A Viral Trigger Hypothesis, Marwan Ahmed, Ruba Salameh, Soziema Salia, Brent T. Harris, Christopher J. Haas, Anees Siddiqi

Journal of Community Hospital Internal Medicine Perspectives

Immune-mediated necrotizing myopathy (IMNM) is a rare subtype of idiopathic inflammatory myopathies that can present with rhabdomyolysis. We report a 43-year-old woman with rapidly progressive proximal muscle weakness following a flu-like illness. Laboratory evaluation revealed markedly elevated creatine kinase (22,207 U/L) and transaminases, with positive anti-signal recognition particle (SRP) and Coxsackie B4 antibodies. Muscle biopsy demonstrated extensive necrosis, regeneration, and endomysial lymphocytic infiltration, confirming IMNM. The patient was treated with intravenous methylprednisolone, IVIG, and rituximab, followed by oral steroid taper and mycophenolate. At six-month follow-up, she showed significant clinical and biochemical improvement. This case highlights a potential viral-triggered autoimmune mechanism, …

Piperacillin-Induced Immune Hemolytic Anemia Masked By Intestinal Failure-Associated Liver Disease: A Case Report With Three Serial Exposures, Stephanie Ammari, Nawras Ibrahim, Khalid Mahmood

Journal of Community Hospital Internal Medicine Perspectives

Background: Drug-induced immune hemolytic anemia (DIIHA) secondary to piperacillin has an estimated incidence of 0.01–0.10% [1,2]. In patients with intestinal failure-associated liver disease (IFALD), chronic conjugated hyperbilirubinemia obscures typical hemolytic markers [3,4].

Case Presentation: A 27-year-old woman with traumatic short bowel syndrome requiring total parenteral nutrition for 6 months, IFALD (baseline total bilirubin 2.5 mg/dL), and chronic kidney disease experienced three piperacillin-tazobactam exposures over two months. First exposure (12 days): hemolysis developed after drug discontinuation (primary sensitization). Second exposure: severe hemolysis occurred within 3 days (anamnestic response) with hemoglobin declining to 5.8 g/dL, undetectable haptoglobin, elevated LDH, reticulocytosis, and strongly …

A Tight Squeeze – Cardiac Tamponade In A Scleroderma Patient, Ifrah Nadeem, Charles E Geringer

Journal of Community Hospital Internal Medicine Perspectives

Systemic Sclerosis (SSc) is an autoimmune connective tissue disease marked by multiorgan fibrosis, including cutaneous involvement, and vasculopathy. Primary heart involvement in systemic sclerosis (SSc-pHI) includes heart failure, arrhythmia, pericarditis, pericardial effusion, valve disorders, and myocarditis. SSc-pHI remains a leading cause of mortality in this population. Pericardial effusion in SSc is usually associated with heart failure, pulmonary hypertension, and end-stage kidney disease. Cardiac tamponade is a rare initial presentation of SSc-pHI but carries a worse prognosis. Diagnosis is often challenging due to subclinical manifestations and requires advanced imaging modalities such as transthoracic echocardiography with tissue doppler and cardiac magnetic resonance …

A Case Of N-Methyl-D-Aspartate (Nmda) Autoimmune Encephalitis In A 34-Year-Old Man Thought To Have Schizophrenia, Riyad Amin, Michael Wilson, Morgan Koontz, Khawaja Omar

Journal of Community Hospital Internal Medicine Perspectives

Background: N-methyl-D-aspartate (NMDA) autoantibody encephalitis is a rare autoimmune condition affecting approximately 1.5 per million people per year [1]. It predominantly occurs in young women and is often associated with tumors, particularly teratomas [3]. The diagnosis is aided by testing cerebrospinal fluid (CSF) or serum for NMDA receptor antibodies along with careful evaluation of symptoms. Misdiagnosis is common, as its symptoms can mimic other more prevalent conditions, such as upper respiratory illnesses or psychiatric disorders like acute psychosis or schizophrenia.

Case Report: We present the case of a 34-year-old man who was initially incarcerated and subsequently developed decreased communication and …

From Villi To Alveoli: Lung Involvement In Celiac Disease – A Narrative Review, Mateusz Marzec, Patrycja Cecha

Journal of Community Hospital Internal Medicine Perspectives

Background:

Celiac disease (CD) is a chronic, immune-mediated enteropathy triggered by gluten that affects about 1% of the population and may present with extraintestinal manifestations. Pulmonary complications are considered rare and are poorly characterized. Lane-Hamilton syndrome is the best described lung manifestation, but data suggests a broader spectrum of respiratory involvement.

Methods:

We performed a narrative review with structured search strategy of PubMed and Embase (January 1, 1970 – December 1, 2025) using the terms celiac/coeliac and lung, pulmonary, respiratory, hemoptysis, hemosiderosis, alveolar hemorrhage, interstitial lung disease, alveolitis, bronchiectasis …

Echocardiography In Stroke Management: Necessary Or Overused?, Nicole Ann Tesoro, Jasvin Kurundrayil Manha, Jerold Fleishman, Sumanth Bandaru

Journal of Community Hospital Internal Medicine Perspectives

Stroke remains a leading cause of morbidity and mortality worldwide, leading to the development of efficient and evidence-based management strategies. Echocardiography is a crucial diagnostic tool for identifying cardiac sources of embolism, particularly in cardioembolic and cryptogenic strokes, yet its routine use in all stroke patients remains controversial. While evidence-based guidelines recommend a patient-specific approach, rigid hospital quality metrics have incentivized widespread echocardiography, even in low-yield cases such as large artery atherosclerotic strokes. This disconnect raises concerns regarding cost-effectiveness, resource allocation, and potential over-testing, delaying discharges and prolonging hospital length of stay. A more tailored approach, focusing on guideline-driven indications, …

A Comparative Analysis Of Opioid Overdose Hospitalizations Pre- And Post-Pandemic: Insights From The National Inpatient Sample Database, Hassan Shakir, Niloy Ghosh, Mohammed A Quazi, Tom Limanovich, Abdul Rafel Awan, Humza Saeed, Adeel Nasrullah, Christopher R Smith, Abu Baker Sheikh

Journal of Community Hospital Internal Medicine Perspectives

Background: The COVID-19 pandemic disrupted healthcare systems, affecting opioid overdose–related hospitalizations. National data examining how demographic and clinical outcomes evolved during this period, particularly by overdose intent, remain limited.

Methods: Using the National Inpatient Sample (2018–2021), we identified adult hospitalizations for opioid overdose using ICD-10 codes and categorized cases as intentional, unintentional, or unspecified. Patients were grouped into pre-COVID (2018–2019) and post-COVID (2020–2021) cohorts. Multivariable logistic and linear regression models adjusted for patient- and hospital-level factors evaluated demographic differences, complications, and outcomes

Results: Among 293,810 hospitalizations, intentional overdoses decreased over time, while unintentional overdoses remained predominant. Post-COVID hospitalizations had higher …

The Effect Of Empiric Initiation Of Treatment On Outcomes Among Patients Presenting With Extrapulmonary Mycobacterium Tuberculosis Infection In A Community Hospital Setting, Talha Awwal, Faisal Raja Kh, Hanya Awaba, Waseem Anwar, Jinma Ren, Muhammad Aamir Safdar, Saqib Walayat, John J. Farrell

Journal of Community Hospital Internal Medicine Perspectives

Background: Extrapulmonary tuberculosis (EPTB) accounts for ~20% of Mycobacterium tuberculosis infections in Pakistan. Diagnostic delays are common and may worsen outcomes. We evaluated whether empiric treatment initiation improves outcomes among patients with EPTB at a large public hospital in Islamabad, Pakistan. Methods: Retrospective cohort of consecutive EPTB cases at Pakistan Institute of Medical Sciences (January–June 2016). Patients were categorized as clinically diagnosed (symptoms/radiology) or laboratory-supported (histology, microbiology, or biochemical tests). Standard Directly Observed Therapy Short-course (DOTS) based regimens were used. Outcomes were treatment success, failure, loss to follow-up, and mortality; groups were compared using chi-square testing. Results: Of 317 EPTB …

Prognostic Utility Of Delta -Procalcitonin And Modified Shock Index For Risk Stratification Of Sepsis In Acute Care Settings, Sanveer Singh, Neeraj Singla, Navneet Sharma, Mandip Bhatia, Saurabh C Sharda

Journal of Community Hospital Internal Medicine Perspectives

Background: Risk stratification in sepsis remains challenging, and while several scoring systems exist, there is a need for simple tools that can reliably predict outcomes.

Aims: To study the role of Delta -Procalcitonin and Modified Shock Index (MSI) in predicting the severity of Multiple Organ Dysfunction Syndrome (MODS)like acute kidney injury, vasopressor requirement, need for mechanical ventilation, coagulopathy and 28 day mortality in sepsis

Methods: This prospective observational study recruited 122 patients with suspected sepsis. Delta- Procalcitonin was calculated by measuring the difference in procalcitonin values at the time of admission and after 48 hours. Modified Shock Index (MSI) is …

Evolving Trends And Racial Disparities In Alcohol Associated Liver Disease (Ald), Metabolic Dysfunction Associated Steatohepatitis (Mash) And Hepatitis C Viral Infection (Hcv) As Etiology Of Liver Transplantation: Past, Present, And Future Projections, Boniface Mensah, Albert E. Orhin, Natalie A. Y. Akoto, Seunghee Han, Rachel A Boateng, Ramya Varesiddy, Joseph Atarere, Simardeep Singh, Terrylyna Baffoe-Bonnie, Haider Naqvi, Christopher J. Haas

Journal of Community Hospital Internal Medicine Perspectives

Background

Liver transplantation remains the definitive treatment for end-stage liver disease (ESLD) and hepatocellular carcinoma (HCC). While hepatitis C virus (HCV) was historically the leading indication for liver transplant, the introduction of direct-acting antivirals (DAAs) has drastically reduced HCV-related ESLD. In contrast, metabolic dysfunction-associated steatohepatitis (MASH) and alcohol-associated liver disease (ALD) have emerged as predominant causes of liver transplantation. This study evaluates racial and ethnic disparities in liver transplantation indications from 2004 to 2023 and projects future trends through to 2040.

Methods

De-identified data from the Standard Transplant Analysis and Research (STAR) files of the United Network for Organ Sharing …

Influence Of Pre-Treatment Ca 125 Levels On Survival Outcomes Across Ethnic Groups In Ovarian Cancer Patients, Ayrton Bangolo, Behzad Amoozgar, Lili Zhang, Budoor Alqinai, Lejla Hodzic, Prathyusha Nadella, Mudra Patel, Kaushik Roy, Veena Lakshmana, Nirdosh Sharma, Sabrina Sultana, Berhane Yohannes, Hadrian Hoang-Vu Tran, Gabriel Ingersoll, Phyu Min Thet, Roshini W. Senevirathne, Prajwal Chandak, Nicole Maharaj, Chloe Aloimonos, Mehwish Safdar, Chathurika Priyabhashinie, Betsy Samuel, Maheswari Bommepalli, Ye Tun, Steven Swarath, Naresh Kumar, Rishabh Goyal, Sami Ai. Salih, Isaac O. Wiredu, Elena Umanets, Lisette L. Kiadidi, Prasansa Dhakal, Timerjot Kaur, Dengyumei Du, Komaldeep Gill, Muhammad Ali Raza Khan, Camila Arteaga, Helena Barbosa, Simcha Weissman

Journal of Community Hospital Internal Medicine Perspectives

Aim This study evaluates demographics, clinicopathological features, and mortality influencers among 16,466 US patients with ovarian cancer diagnosed between 2010 and 2017, focusing on CA 125 levels and racial disparities affecting outcomes.

Methods We analyzed SEER data for 16,466 patients diagnosed from 2010 to 2017. Demographic, clinical, overall mortality (OM), and cancer-specific mortality (CSM) variables were assessed. Factors with P < 0.1 on univariate Cox regression were entered into multivariate Cox models to identify independent prognostic factors, with hazard ratios greater than one indicating adverse prognosis.

Results Among 16,466 patients with ovarian cancer diagnosed between 2010 and 2017, most were aged 40–79 years and presented with distant-stage disease. The majority of patients were non-Hispanic White, followed by Hispanic and non-Hispanic Black patients. Serous carcinoma was the …

Correlation Between Aortic Valve Area Measured By Cardiac Computed Tomography And Transthoracic Echocardiography In Patients With Aortic Stenosis, Shehroz Sultan, Neeraj Joshi, Ali Haider Awan, Shabana Kauser, Hafsa Malik Aulakh, Bilal Ghafoor, Muhammad Ammar Ajmal, Abida Perveen, Jahanzeb Malik

Journal of Community Hospital Internal Medicine Perspectives

Background: Accurate assessment of aortic valve area (AVA) is essential for determining the severity of aortic stenosis (AS) and guiding clinical management. Transthoracic echocardiography (TTE) is the standard first-line imaging modality, while cardiac computed tomography (CT) provides direct anatomical planimetry and may offer complementary information in selected patients.

Objective: To evaluate the correlation and agreement between CT-derived and TTE-derived AVA measurements and to examine their association with clinical outcomes in patients with AS.

Methods: This single-center retrospective cohort study included 1,857 consecutive adults with moderate to severe AS who underwent both TTE and cardiac CT at the Rawalpindi Institute of …

Improving Pneumococcal Vaccination Rates During Hospitalization Via Resident Education Intervention: A Hospital-Based Quality Improvement Project In A Teaching Community Hospital, Shun Nakahara, Takahiko Tsutsumi, Masaru Kurihara

Journal of Community Hospital Internal Medicine Perspectives

Background: Pneumococcal vaccination coverage among eligible adults in Japan remains suboptimal. This gap may be partly attributable to insufficient physician and patient education, as well as limited coordination in delivery of preventive care. Therefore, we conducted a hospital-based quality improvement project combining resident education with system-level workflow modifications to enhance pneumococcal vaccination rates.

Methods: A single-center quality improvement study was conducted at a teaching community hospital in Japan, comparing outcomes between pre-intervention and intervention periods. The intervention included resident education, patient educational materials, integration of vaccination status into admission documentation, discharge checklists, and weekly reminders. The primary outcome was the …

Systematic Review Of Randomized Clinical Trials For The Treatment Of Long Covid Syndrome, Leonardo Tamariz, Dariel Rodriguez, Elizabeth Bast, Nancy Klimas, Morgan Pyne, Maricarmen Cruz-Jimenez, Diana Gomez Manjarrez, Ana Palacio

Journal of Community Hospital Internal Medicine Perspectives

Background: There is a critical need for interventions for long COVID. Our aim was to conduct a systematic review on the efficacy and safety of different interventions in patients with long COVID.

Methods: We searched the MEDLINE 1965 until August 2024. We included randomized clinical trials that reported a primary outcome. We evaluated the GRADE certainty of the effect measures.

Results: Our initial search yielded 2,606 potentially relevant studies. We include 43 randomized clinical trials that ultimately included 2,878 participants with long COVID. The GRADE criteria found all but one study had low certainty. Eight studies reported on the use …

Cipropad Learning Model To Improve Elementary School Students’ Hots In Geometry, Ria J. Salman, Heris Hendriana, Masta Hutajulu

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The latest digital technology developments demand innovative learning models that are able to integrate active learning approaches, problem-solving, and digital collaborative platforms. This study aims to develop a CIPROPAD (Circuit Learning, Problem-Based-Learning, Padlet) learning model designed to improve students' HOTS. This study uses the Borg and Gall R&D method which includes the stages of needs analysis, model design, initial product development, expert validation, limited trials, revisions, and field trials. The research subjects consisted of 74 elementary school students divided into experimental and control groups. The research instruments used included expert validation sheets, HOTS tests, student activity observation sheets, and student …

Management Of Skeletal Class Iii Malocclusion With Deep Bite And Moderate Overjet Using Improved Super-Elastic Ti-Ni Alloy Wire (Isw), Wen-Hsuan Lin, Ching-Yu Yang, Yuan-Hou Chen, Jian-Hong Yu

Taiwanese Journal of Orthodontics

A 20-year-old female presented with concerns about poor dental alignment and a tendency to bite on her lip easily. Clinical examination revealed a concave and brachy facial profile, accompanied by a deep overbite and a moderate overjet. Radiographic examination showed skeletal Class III with a low mandibular plane angle. Correction of the deep bite was achieved by using the Improved Super-elastic Ti-Ni alloy Wire (ISW) and Intermaxillary elastics (IMEs). To correct the moderate overjet, interproximal reduction (IPR), the Multi-bend Edgewise Archwire (MEAW) technique, and arch lengthening of the lower arch were applied. The active treatment duration took approximately 54 months, …

Improved Super-Elastic Ti-Ni Alloy Wire For The Treatment Of Skeletal Class Iii Malocclusion With Anterior Crossbite And Missing Lower Molar, De-Lun Zhuang, Yuan-Hou Chen, Jian-Hong Yu

Taiwanese Journal of Orthodontics

This case report describes the use of Improved Super-elastic Ti-Ni alloy wire (ISW), developed by Tokyo Medical and Dental University, in managing a skeletal Class III malocclusion with anterior crossbite and a missing lower molar. A 26-year-old female presented with a chief complaint of poor dental alignment. Clinical and radiographic evaluation revealed Angle Class III malocclusion, anterior crossbite, a missing mandibular first molar (36), and a centric occlusion–centric relation (CO–CR) functional shift, consistent with a skeletal Class III pattern. Treatment involved the use of ISW for leveling and alignment of both arches and correction of the anterior crossbite, while maintaining …

Inferior Alveolar Nerve Proximity In Mandibular Molar Distalization: Implications For Orthodontic Treatment Planning, Samantha Hsien-Chu Mao, Chia-Hsuan Chan, Yu-Jen Chang, Shiu-Shiung Lin, Chen-Feng Cheng, Te-Ju Wu

Taiwanese Journal of Orthodontics

Purpose: This study aimed to clarify the anatomical boundaries of mandibular molar distalization, emphasizing the risk of inferior alveolar nerve (IAN) contact. Patients and Methods: In total, 30 skeletal Class III patients undergoing orthognathic surgery (59 mandibular hemi-arches) were analyzed using pretreatment three-dimensional (3D) computed tomography scans. The shortest horizontal distance between the mandibular second molar and the inferior alveolar canal (M2-IAC) was measured at multiple depths below the cementoenamel junction, along with the distance to the lingual cortical plate (M2-MLC). Samples were categorized by vertical facial pattern (low-, normal-, and high-angle case). Simulated distalization cases predicting IAN contact were …

Comparative Evaluation Of Selected Properties Of Tetrahedral Amorphous Carbon (Ta-C) Coated And Uncoated Beta Titanium (Β-Ti) Archwires - An In Vitro Study, Abhinaya Jotheswaran, Kurunji Kumaran Navaneethakrishnan

Taiwanese Journal of Orthodontics

Objective: The development of newer archwires can be achieved either by discovering novel materials or by modifying existing ones. The objective of the present study was to coat beta-titanium (β-Ti) archwires with tetrahedral amorphous carbon (ta-C)/hard carbon and to evaluate selected physical and mechanical properties. Methods: Hard carbon–coated (n = 5) and uncoated (n = 5) β-Ti wires were assessed for surface roughness, wear resistance, load-deflection characteristics, and friction using appropriate testing apparatus under dry in vitro conditions. Results: Compared to uncoated β-Ti wires, ta-C–coated β-Ti wires demonstrated a statistically significant reduction in surface roughness, increased wear resistance, and lower …

The Significance Of Medical Terminology In The Arabic 111 Course At King Saud Bin Abdulaziz University For Health Sciences (Ksau-Hs): An Analytical Pragmatic Study, Nuwair Abdullah Khalaf Al-Anzi

UB Journal for Humanities

Medical terminology in the “Arab 111” curriculum varies in its use within the educational context, which may affect students’ comprehension and understanding. Therefore, this study seeks to examine the suitability of these terms from a pragmatic perspective and their relationship to the effectiveness of scientific communication. Medical terminology possesses multiple contextual dimensions and is not confined solely to the scientific context among physicians, patients, and society. Pragmatics thus focuses on the way these terms are employed in everyday communication, since their circulation requires simplification to suit non-specialists. Moreover, misunderstanding medical terminology may lead to errors in diagnosis or treatment, making …

Profiling Students’ Academic Language Readiness For English‑Medium Instruction In Saudi Higher Education, Hanan Sarhan Alsubaiai

UB Journal for Humanities

Saudi universities have been rolling out English‑Medium Instruction (EMI) at a fast pace. But no standardized and validated instrument currently exists to assess students’ readiness. The present study developed the Academic Language Readiness Test (ALRT), administered it to undergraduate students, and determined the score cut-offs distinguishing those who are Ready, Borderline, and those who are Not Ready. A crosssectional, multisite quantitative design was employed with 712 undergraduate students from seven colleges at Bisha University. The ALRT measured four subskills: academic listening, academic reading, academic vocabulary and grammar, and academic study skills (notetaking and visual data interpretation). Psychometric analysis combined Classical …

How Rude?: Prohibitions On Insults And Abuse In International Human Rights Complaint Proceedings, Lisa Reinsberg

Northwestern Journal of Human Rights

May international human rights mechanisms close their doors to individuals who insult their members or Member States? Several do so, but the basis, scope, and impact of such rejections remain mostly unexamined. This article maps the relevant practices of regional and United Nations human rights bodies and compares them to other courts’ responses to contempt of court or vexatious litigation, to understand whether this admissibility criterion is a proper application of the prohibition on abuse of the right of petition or a legitimate exercise of a human rights body’s inherent powers. Three approaches emerge: ignore, balance, and punish. While the …

Grit And Psychological Well-Being As Predictors Of Job Persistence Among K–12 Teachers In The United States, Tina Marie Sheppard

Walden Dissertations and Doctoral Studies

Throughout the United States, K–12 public school teachers are leaving the profession, contributing to teacher shortages and instability in classrooms and schools. Teacher persistence is critical to student success, yet little was known about the nature of the predictive relationship between grit and psychological well-being on job persistence among K–12 public school teachers in the United States. Guided by the framework of positive psychology, the purpose of this quantitative nonexperimental correlational study was to investigate the nature of the predictive relationship between the independent variables grit, as measured by the 12-Item Grit Scale, and psychological well-being, as measured by the …