Graded and Anisotropic Porous Materials for Broadband and Angular Maximal Acoustic Absorption.

The design of graded and anisotropic materials has been of significant interest, especially for sound absorption purposes. Together with the rise of additive manufacturing techniques, new possibilities are emerging from engineered porous micro-structures. In this work, we present a theoretical and numerical study of graded and anisotropic porous materials, for optimal broadband and angular absorption.

Acoustic wave propagation in effective graded fully anisotropic fluid layers.

This work deals with the sound wave propagation modeling in anisotropic and heterogeneous media. The considered scattering problem involves an infinite layer of finite thickness containing an anisotropic fluid whose properties can vary along the layer depth. The specular transmission and reflection of an acoustic plane wave by such a layer is modeled through the state vector formalism for the acoustic fields.

Design, fabrication and modeling of an AmBe neutron irradiator for TLD screening for neutron dose measurement in mixed radiation fields.

TLDs dosimeters are frequently presented as a viable choice for dosimetric studies when dealing with mixed neutron-gamma radiation fields. However, this choice is not without some drawbacks, because not only TLD response is highly dependent on particle type but also on neutron energy spectrum. Therefore, a correct screening and calibration of the dosimeter are required, and a simple shift from gamma screening methodology for mixed field is not suitable.

Instrumental Activities of Daily Living, Neuropsychiatric Symptoms, and Neuropsychological Impairment in Mild Cognitive Impairment.

Background: Neuropsychological deficits, neuropsychiatric symptoms, and problems with instrumental activities of daily living are common in participants with mild cognitive impairment (MCI).

Objectives: To assess how subtle to mildly impaired instrumental activities of daily living (IADLs) might be related to neuropsychological abilities (including executive control and episodic memory) and neuropsychiatric symptoms (including apathy and depression) among participants with a diagnosis of MCI.

Methods: Participants were evaluated for MCI and possible dementia at an outpatient memory clinic on the basis of a comprehensive neuropsychological evaluation, a geriatric psychiatry evaluation, a magnetic resonance image of the brain, and serum studies to evaluate for a possible reversible cause of cognitive decline.

Frailty Phenotype and Neuropsychological Test Performance: A Preliminary Analysis.

Context: Frailty is a common problem that affects adults older than 65 years. Correlations between the frailty phenotype and neuropsychological impairment have not been thoroughly researched.

Objective: To examine the association between frailty phenotype, neuropsychological screening test results, and neuropsychological domains known to characterize patients with mild cognitive impairment and dementia.

Effective Patient-Physician Communication Based on Osteopathic Philosophy in Caring for Elderly Patients.

The objective of this article is to discuss effective communication strategies between elderly patients and their physicians from the perspective of osteopathic heritage. The patient-physician communication styles of Andrew Taylor Still, MD, DO, and early osteopathic physicians (ie, DOs) may have influenced how DOs today communicate with their patients. Historical literature describes how Still would discuss with his patients the causes of their health problems using analogies and language they would understand, and how, when caring for a patient at the end of life, he empathically provided emotional support for both patients and their families.

Axioms, osteopathic culture, and a perspective from geriatric medicine.

Osteopathic medicine is a rapidly growing discipline in health care that has much to offer the wider biomedical community. A distinction of the osteopathic medical profession is the importance of an overall guiding philosophy. Despite the osteopathic medical profession's success, there remains concern about the profession's ability to maintain its unique identity.

Promoting successful aging through effective prevention and management of osteoporosis.

Successful aging has been described as having 3 components: a low probability of disease and disease-related disability, a capacity for high cognitive and physical function, and active engagement with social and productive activities. Osteopathic physicians play a critical role in the promotion of successful aging through the prevention, early detection, and management of osteoporosis. Not many years ago, osteoporosis was viewed as an age-related disorder for which there was a lack of effective approaches for early intervention and management.

A single dose of amoxicillin and dexamethasone for prevention of postoperative complications in third molar surgery: a randomized, double-blind, placebo controlled clinical trial.

Background: The aim of this study was to assess the efficacy of a single prophylactic dose of amoxicillin and/or dexamethasone in preventing postoperative complications (PC) after a surgical removal of a single mandibular third molar (M3).

Methods: This study is a randomized, placebo controlled clinical trial. Four groups were included: Group 1 (G1) included a prophylactic dose of 2 g of amoxicillin and 8 mg of dexamethasone; Group 2 (G2) included a prophylactic dose of 2 g of amoxicillin and 8 mg of placebo; Group 3 (G3) included a prophylactic dose of 8 mg of dexamethasone and 2 g of placebo and; Group 4 (G4) placebo.

Practice patterns of osteopathic physicians providing end-of-life care: a survey-based study.

Context: In 1996, the American Medical Association drafted and organized the Education for Physicians on End-of-Life Care (EPEC) curriculum. Leadership in the osteopathic medical profession has similarly recognized the goals of EPEC-resulting in the development of Osteopathic-EPEC, which incorporates the core tenets of osteopathic medicine.

Objective: To assess the impact of EPEC training and the integration of osteopathic principles and practice in end-of-life care provided by osteopathic physicians (DOs).

Inhibition of p53 by pifithrin-alpha reduces myocyte apoptosis and leukocyte transmigration in aged rat hearts following 24 hours of reperfusion.

Ischemic heart disease is a common age-related disease. Apoptotic cell death and inflammation are the major contributors to I/R injury. The mechanisms that trigger myocyte apoptosis and inflammation during myocardial I/R (MI/R) remain to be elucidated.

Management of pain in older adults.

The elderly are often untreated or undertreated for pain. Barriers to effective management include challenges to proper assessment of pain; underreporting on the part of patients; atypical manifestations of pain in the elderly; a need for increased appreciation of the pharmacokinetic and pharmacodynamic changes of aging; and misconceptions about tolerance and addiction to opioids. Physicians can effectively manage pain in the elderly by understanding different types of pain (nociceptive and neuropathic), and appropriate use of nonopioid, opioid, and adjuvant medications.

Research funding at colleges of osteopathic medicine: 15 years of growth.

Context: Colleges of osteopathic medicine (COMs) trying to stimulate research and develop research infrastructures must overcome the challenge of obtaining adequate funding to support growing research interests. The authors examine changes in research funding at COMs during the past 15 years.

Objectives: To track 1999-2004 data on COM research funding, COM faculty size, educational backgrounds of principal investigators receiving funding, and funding institutions.

Pifithrin-alpha attenuates p53-mediated apoptosis and improves cardiac function in response to myocardial ischemia/reperfusion in aged rats.

Ischemic cardiovascular disease is a common age-related disease. The p53-dependent cardiac myocyte apoptosis induced by myocardial ischemia/reperfusion (MI/R) is an important feature in the progression of ischemic heart disease. In the present studies, we hypothesized that inhibition of p53-dependent myocyte apoptosis may improve cardiac dysfunction in aged rats after MI/R.

Privacy and patient-clergy access: perspectives of patients admitted to hospital.

Background: For patients admitted to hospital both pastoral care and privacy or confidentiality are important. Rules related to each have come into conflict recently in the US. Federal laws and other rules protect confidentiality in ways that countermand hospitals' methods for facilitating access to pastoral care.

Physicians' practices related to the use of terminal sedation: moral and ethical concerns.

Objective: Although terminal sedation (TS) has generally been seen as legal and ethically acceptable, ethical and moral issues remain. Little is known about the use of TS in general clinical practice and about how TS is viewed by physicians, given moral and ethical concerns. The objectives of this study are (1) to describe attitudes of physicians regarding terminal sedation; (2) to explore demographic characteristics, such as age, gender, subspecialty, and number of years in practice, that might be related to the use of TS; and (3) to compare physicians who have and have not used TS on the degree to which they view TS as moral and consistent with their professional and personal ethics.

Attenuation of antioxidative capacity enhances reperfusion injury in aged rat myocardium after MI/R.

Mortality due to ischemic cardiovascular diseases is significantly higher in elderly than in young adults. Myocardial ischemia-reperfusion (MI/R) can induce oxidative stress and an inflammatory response. We hypothesized that increased vulnerability of aged myocardium to reperfusion injury could be caused by decreased antioxidative capacity, rather than increased oxidant production, after MI/R.

Predictive validity of osteopathic medical licensing examinations for osteopathic medical knowledge measured by graduate written examinations.

The purpose of this study was to evaluate the predictive validity of osteopathic medical licensing examinations for osteopathic medical knowledge measured by graduate written medical examinations. Performances on the three osteopathic initial licensing examinations, the three osteopathic internal medicine in-service examinations, and the osteopathic internal medicine board certification examinations were analyzed for a cohort of the most recent osteopathic internal medicine board certification examination candidates (N = 82). Multiple regressions were performed for the predictive value of licensing examination scores for the late examination scores.

Age-related difference in myocardial function and inflammation in a rat model of myocardial ischemia-reperfusion.

Objective: Aging is associated with a reduced tolerance to myocardial ischemia reperfusion injury when compared to the young adult. However, there is very little information in the literature regarding age-related changes in myocardial function and inflammation during myocardial ischemia-reperfusion (MI/R) in vivo.

Methods: We examined age-related differences in myocyte apoptosis and the inflammatory response in a rat model of myocardial ischemia-reperfusion (MI/R).

How physicians approach advance care planning in patients with mild to moderate Alzheimer's disease.

Decision-making ability regarding end-of-life issues is often compromised by dementia in patients with Alzheimer's disease. This study assessed physicians' discussions of advance care planning with patients with mild to moderate Alzheimer's disease. Data were collected by a survey of full-time faculty in the departments of Medicine and Family Medicine and the Center for Aging at the University of Medicine and Dentistry of New Jersey-School of Osteopathic Medicine, as well as physicians in private practice affiliated with the Kennedy Health System.

Pain management in the elderly.

Pain in the elderly is often unrecognized and undertreated. Ineffective pain management can have a significant impact on the quality of life of older adults, leading to depression, social isolation, and a loss of function. Proper assessment of older adults requires the physician to regularly ask about the presence of pain and be skillful in assessment strategies to evaluate the frequency and intensity of pain.

Osteoporosis prevention project: a model multidisciplinary educational intervention.

Osteoporosis is a systemic metabolic disease resulting in low bone mass, which increases the risk for fracture. Evidence suggests that lifestyle changes to prevent or delay development of osteoporosis should be implemented throughout the life span. The purpose of this study was to evaluate the effectiveness of a multidisciplinary primary osteoporosis prevention program for community-dwelling women aged 25 to 75 years to determine if osteoporosis prevention program participants (treatment group) increased their knowledge of osteoporosis, calcium intake, and exercise compared with a control group.

Ethical issues at the end of life.

Providing good care for dying patients requires that physicians be knowledgeable of ethical issues pertinent to end-of-life care. Effective advance care planning can assure patient autonomy at the end of life even when the patient has lost decision-making capacity. Medical futility is difficult to identify in the clinical setting but may be described as an intervention that will not allow the intended goal of therapy to be achieved.