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https://www.readbyqxmd.com/read/27933984/a-statistical-thermodynamic-model-for-surface-tension-of-organic-and-inorganic-aqueous-mixtures
#1
Hallie C Boyer, Bryan Richard Bzdek, Jonathan Philip Reid, Cari S Dutcher
The surface composition and tensions of aqueous aerosols govern a set of processes that largely determine the fate of particles in the atmosphere. Predictive modeling of surface tension can provide significant contributions to studies of atmospheric aerosol effects on climate and human health. A previously derived surface tension model for single solute aqueous solutions used adsorption isotherms and statistical mechanics to enable surface tension predictions across the entire concentration range as a function of solute activity...
December 9, 2016: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/27933636/primary-headaches-in-an-elderly-population-seeking-medical-care-for-cognitive-decline
#2
Michele Feleppa, Silvia Fucci, Marcelo E Bigal
OBJECTIVES: To assess the prevalence of specific headache disorders in a population older than 65 years seeking consultation due to memory problems or cognitive impairment. METHODS: We verified the occurrence of headache symptoms and the impact of headaches on daily life. Headaches were classified as per the International Classification of Headache Disorders, 2nd edition (ICHD-2). All patients were screened with the Mini-Mental State Examination (MMSE), followed by the Selective Reminding Test and neuroimaging...
December 9, 2016: Headache
https://www.readbyqxmd.com/read/27929605/nasopharyngeal-airway-to-prevent-tension-pneumocephalus-after-open-resection-of-anterior-skull-base-tumors
#3
Matthew E Spector, Jon-Paul Pepper, Stephen Sullivan, Lawrence Marentette, Erin McKean
We conducted a retrospective study to assess the efficacy of using a nasopharyngeal airway in lieu of a tracheotomy or prolonged intubation for the diversion of airflow to prevent tension pneumocephalus after an open resection of anterior skull base tumors. Our study population was made up of 120 patients-74 males and 46 females, aged 12 to 84 years (mean: 48.7)-who had undergone an anterior skull base resection with documented nasopharyngeal airway placement from 1996 through 2009. Our main outcome measure was the presence of tension pneumocephalus while controlling for the placement of a lumbar drain, the development of a cerebrospinal fluid (CSF) leak, and the type of reconstruction...
December 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27924616/the-prevalence-of-primary-headache-disorders-in-ethiopia
#4
Mehila Zebenigus, Redda Tekle-Haimanot, Dawit K Worku, Hallie Thomas, Timothy J Steiner
BACKGROUND: Knowledge of the epidemiology of primary headache disorders in sub-Saharan Africa (SSA) remains very limited. We performed a population-based survey in rural and urban areas of Ethiopia, using methods similar to those of an earlier study in Zambia and tested in multiple other countries by Lifting The Burden. METHODS: In a cross-sectional survey we visited households unannounced in four regions of Ethiopia: the mostly urban populations in Addis Ababa and its environs and rural populations of selected districts in Oromia, Amhara and South Nations Nationalities and People's Regions States (SNNPRS)...
December 2016: Journal of Headache and Pain
https://www.readbyqxmd.com/read/27922567/validity-of-the-european-society-of-cardiology-s-psychosocial-screening-interview-in-patients-with-coronary-heart-disease-the-thoresci-study
#5
Eveline van Montfort, Johan Denollet, Jos Widdershoven, Nina Kupper
AIM: To examine the validity of the European Society of Cardiology (ESC) psychosocial screening instrument. METHOD: 508 acute (67%) or elective (33%) percutaneous coronary intervention (PCI) patients (mean age=63 years, SD=10; 81% male) completed the ESC screening interview and established questionnaires for psychosocial risk markers, i.e., depression (PHQ-9), anxiety (GAD-7), Type D personality (DS14), hostility (CMHS-7), and marital/work stress (MMQ-6, ERI) during or close after hospital admission...
December 2, 2016: Psychosomatic Medicine
https://www.readbyqxmd.com/read/27920575/an-individually-tailored-behavioral-medicine-treatment-in-physical-therapy-for-tension-type-headache-two-experimental-case-studies
#6
Anne Söderlund, Helena Lagerlöf
AIM: The aim of this study was to describe and evaluate the effect of an individually tailored behavioral medicine treatment in physical therapy, based on a functional behavioral analysis (FBA), for tension-type headache (TTH). PATIENTS AND METHODS: Two case studies with A1-A2-B-A3 design of two patients with TTH was conducted. Outcome variables were headache frequency, headache index (mean intensity), consumption of analgesics, self-efficacy in headache management (Headache Management Self-efficacy Scale [HMSE]), disability, and perceived loss of happiness for activities with family and friends...
2016: Journal of Pain Research
https://www.readbyqxmd.com/read/27919024/trigger-points-are-associated-with-widespread-pressure-pain-sensitivity-in-people-with-tension-type-headache
#7
María Palacios-Ceña, Kelun Wang, Matteo Castaldo, Amparo Guillem-Mesado, Carlos Ordás-Bandera, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas
OBJECTIVE: To investigate the association between trigger points (TrPs) and widespread pressure pain sensitivity in people with tension-type headache (TTH) and to determine if this association is different between frequent episodic (FETTH) or chronic (CTTH) headache. DESIGN: A cross-sectional study. METHODS: One hundred and fifty-seven individuals (29% male) with TTH participated. Clinical features of headache, i.e., intensity, duration, and frequency, were recorded in a headache diary...
November 14, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27919021/a-lost-track-in-ichd-3-beta-a-comprehensive-review-on-osmophobia
#8
Giorgio Zanchin, Matteo Fuccaro, Pierantonio Battistella, Mario Ermani, Federico Mainardi, Ferdinando Maggioni
BACKGROUND: Osmophobia (Os) has been reported to be much more prevalent in migraine (M) than in other primary headaches, and its high specificity in the differential diagnosis between M and tension-type headache (TTH) has been reported. Os was included in the ICHD II Appendix as a diagnostic criterion of M. It disappeared in ICHD-3 beta. To understand this choice, we reviewed the literature after 2004. METHODS: This was a systematic review. We searched in PubMed, MEDLINE and Cochrane library for "osmophobia", "odour/odorphobia AND headache", "odour/odor hypersensitivity AND headache" and "olfactory hypersensitivity AND headache"...
November 14, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27919020/psychosocial-factors-associated-with-migraine-and-tension-type-headache-in-medical-students
#9
Elena R Lebedeva, Natalia R Kobzeva, Denis V Gilev, Nadezhda V Kislyak, Jes Olesen
BACKGROUND: In our previous study of workers, blood donors and medical students, students stood out with a higher 1-year prevalence of migraine (28%) and tension-type headache (TTH) (74%). General factors associated with headache were common for all groups except low physical activity. The hypothesis of this study was therefore that a number of psychosocial factors relating to the personal sphere would better explain the high prevalence of migraine and TTH in students. METHODS: The study population consisted of 1042 students (719 females, 323 males, mean age 20...
November 8, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27914840/coracoclavicular-stabilization-using-a-suture-button-device-for-neer-type-iib-lateral-clavicle-fractures
#10
Chul-Hyun Cho, Jae-Hoon Jung, Beom-Soo Kim
BACKGROUND: The purpose of this study was to evaluate the radiologic and clinical outcomes of coracoclavicular (CC) stabilization using a suture button device for Neer type IIB lateral clavicle fractures. METHODS: Eighteen consecutive patients with Neer type IIB fractures were treated with CC stabilization using a TightRope device (Arthrex, Naples, FL, USA). The mean follow-up period was 46.6 months (range, 24-75 months). Radiologic outcomes were assessed using serial plain radiographs...
November 30, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27914318/older-adults-attentional-deployment-differential-gaze-patterns-for-different-negative-mood-states
#11
Ineke Demeyer, Alvaro Sanchez, Rudi De Raedt
BACKGROUND AND OBJECTIVES: Older adults are characterized by an attentional preference for positive over negative information. Since this positivity effect is considered to be an emotion regulation strategy, it should be more pronounced when emotion regulation is needed. In contrast to previous studies that focused on the effects of sad mood on attention, we used a stressor to activate emotion regulation and evaluate the effects of different types of mood state changes. Moreover, we evaluated mood effects on attentional processes using a paradigm that allows disentangling between different attentional engagement and disengagement processes...
November 24, 2016: Journal of Behavior Therapy and Experimental Psychiatry
https://www.readbyqxmd.com/read/27913119/mechanical-forces-during-muscle-development
#12
REVIEW
Sandra B Lemke, Frank Schnorrer
Muscles are the major force producing tissue in the human body. While certain muscle types specialise in producing maximum forces, others are very enduring. An extreme example is the heart, which continuously beats for the entire life. Despite being specialised, all body muscles share similar contractile mini-machines called sarcomeres that are organised into regular higher order structures called myofibrils. The major sarcomeric components and their organisational principles are conserved throughout most of the animal kingdom...
November 29, 2016: Mechanisms of Development
https://www.readbyqxmd.com/read/27905079/the-potential-impact-of-primary-headache-disorders-on-stroke-risk
#13
Chia-Lin Tsai, Chung-Hsing Chou, Pei-Jung Lee, Jiu-Haw Yin, Shao-Yuan Chen, Chun-Chieh Lin, Yueh-Feng Sung, Fu-Chi Yang, Chi-Hsiang Chung, Wu-Chien Chien, Chia-Kuang Tsai, Jiunn-Tay Lee
BACKGROUND: Headache such as migraine is associated with stroke. Studies focused on primary headache disorders (PHDs) as a risk factor for stroke are limited. The purpose of this population-based cohort study was to explore whether patients with PHDs were at a high risk for developing stroke. METHODS: A total of 1346 patients with PHDs were enrolled and compared with 5384 age-, gender- and co-morbidity-matched control cohorts. International Classification of Diseases, Clinical Modification codes were administered for the definition of PHDs, stroke, and stroke risk factors...
December 2016: Journal of Headache and Pain
https://www.readbyqxmd.com/read/27901275/peripheral-nerve-blocks-for-the-treatment-of-headache-in-older-adults-a-retrospective-study
#14
Jacob R Hascalovici, Matthew S Robbins
OBJECTIVE: The objective of this study is to provide demographical and clinical descriptions of patients age 65 years old and older who were treated with peripheral nerve blocks (PNBs) at our institution and evaluate the safety and efficacy of this treatment. BACKGROUND: Headache disorders are common, disabling chronic neurological diseases that often persist with advancing age. Geriatric headache management poses unique therapeutic challenges because of considerations of comorbidity, drug interactions, and adverse effects...
November 30, 2016: Headache
https://www.readbyqxmd.com/read/27898302/a-novel-sandwich-type-traveling-wave-piezoelectric-tracked-mobile-system
#15
Liang Wang, Chengyou Shu, Quan Zhang, Jiamei Jin
In this paper, a novel sandwich-type traveling wave piezoelectric tracked mobile system was proposed, designed, fabricated and experimentally investigated. The proposed system exhibits the advantages of simple structure, high mechanical integration, lack of electromagnetic interference, and lack of lubrication requirement, and hence shows potential application to robotic rovers for planetary exploration. The tracked mobile system is comprised of a sandwich actuating mechanism and a metal track. The actuating mechanism includes a sandwich piezoelectric transducer and two annular parts symmetrically placed at either end of the transducer, while the metal track is tensioned along the outer surfaces of the annular parts...
November 15, 2016: Ultrasonics
https://www.readbyqxmd.com/read/27897258/lack-of-fibronectin-extra-domain-a-alternative-splicing-exacerbates-endothelial-dysfunction-in-diabetes
#16
Gianluca Gortan Cappellari, Rocco Barazzoni, Luigi Cattin, Andrés F Muro, Michela Zanetti
Glucose-induced changes of artery anatomy and function account for diabetic vascular complications, which heavily impact disease morbidity and mortality. Since fibronectin containing extra domain A (EDA + FN) is increased in diabetic vessels and participates to vascular remodeling, we wanted to elucidate whether and how EDA + FN is implicated in diabetes-induced endothelial dysfunction using isometric-tension recording in a murine model of diabetes. In thoracic aortas of EDA(-/-), EDA(+/+) (constitutively lacking and expressing EDA + FN respectively), and of wild-type mice (EDA(wt/wt)), streptozotocin (STZ)-induced diabetes impaired endothelial vasodilation to acetylcholine, irrespective of genotype...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893512/flap-designs-for-flap-advancement-during-implant-therapy-a-systematic-review
#17
Alexandra B Plonka, Rachel A Sheridan, Hom-Lay Wang
PURPOSE: Guided bone regeneration (GBR) procedures allow ridge augmentation before or at time of implant placement. GBR outcomes rely on primary passive tension-free wound closure, which may be achieved by a variety of flap designs and surgical procedures. A comprehensive literature review of flap design and management is provided, including material types, incision design, reflection, releasing, and suturing techniques. MATERIALS AND METHODS: Two reviewers completed a literature search using the PubMed database and a manual search of relevant journals...
November 23, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27890969/behavior-of-post-installed-anchors-tested-by-stepwise-increasing-cyclic-load-protocols
#18
Philipp Mahrenholtz, Rolf Eligehausen, Tara C Hutchinson, Matthew S Hoehler
Cyclic loads are a characteristic feature of actions acting on structures and anchorages during earthquakes. For this reason, seismic qualification of post-installed concrete anchors according to the internationally recognized American Concrete Institute (ACI) standard ACI 355 is based on cyclic load tests. The protocols for these tests, however, have limited scientific basis. Therefore, in the present paper newly-developed test protocols with stepwise-increasing load amplitudes are utilized to more realistically evaluate anchor seismic performance...
September 2016: ACI Struct J
https://www.readbyqxmd.com/read/27889613/two-approaches-one-problem-cultural-constructions-of-type-ii-diabetes-in-an-indigenous-community-in-yucat%C3%A3-n-mexico
#19
Sarah M Frank, T Elizabeth Durden
The emerging epidemic of obesity and type II diabetes in Mexico has recently propelled the nation into the public health spotlight. In the state of Yucatán, the experience of diabetes is greatly impacted by two cultural constructions of disease. In this setting, elements of Yucatec Mayan health practices as well as the biomedical model affect the approach to type II diabetes. Both frameworks offer unique understandings of the etiology of diabetes and recommend different ways to manage the condition. Based on in-depth and semi-structured interviews with both community members and clinicians, the present study seeks to understand how diabetes is understood and treated in indigenous settings in rural Yucatán...
November 16, 2016: Social Science & Medicine
https://www.readbyqxmd.com/read/27889555/correlation-between-microvascular-dysfunction-and-b-type-natriuretic-peptide-levels-in-non-ischemic-heart-failure-patients-with-cardiac-fibrosis
#20
Kyoko Hirakawa, Megumi Yamamuro, Tomoaki Uemura, Seiji Takashio, Koichi Kaikita, Daisuke Utsunomiya, Mina Nakayama, Eiichiro Yamamoto, Yasuyuki Yamashita, Seiji Hokimoto, Kenichi Tsujita
BACKGROUNDS: The relationship between microvascular dysfunction and plasma B-type natriuretic peptide (BNP) levels remains unclear in heart failure (HF) patients with cardiac fibrosis. METHODS: This study evaluated 55 consecutive non-ischemic HF patients in an effort to determine the relationship between endothelial independent coronary microvascular dysfunction and plasma BNP levels, as well as whether each measure is correlated with myocardial fibrosis. We evaluated plasma BNP levels in patients with stable HF...
November 8, 2016: International Journal of Cardiology
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