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https://www.readbyqxmd.com/read/28446702/alteration-of-cerebrovascular-haemodynamic-patterns-due-to-atrial-fibrillation-an-in-silico-investigation
#1
S Scarsoglio, A Saglietto, M Anselmino, F Gaita, L Ridolfi
There has recently been growing evidence that atrial fibrillation (AF), the most common cardiac arrhythmia, is independently associated with the risk of dementia. This represents a very recent frontier with high social impact for the number of individuals involved and for the expected increase in AF incidence in the next 40 years. Although a number of potential haemodynamic processes, such as microembolisms, altered cerebral blood flow, hypoperfusion and microbleeds, arise as connecting links between the two pathologies, the causal mechanisms are far from clear...
April 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28444540/impact-of-residual-disease-after-unplanned-excision-of-primary-localized-adult-soft-tissue-sarcoma-of-the-extremities-evaluation-of-452-cases-at-a-single-institution
#2
G Bianchi, A Sambri, S Cammelli, A Galuppi, A Cortesi, A Righi, E Caldari, S Ferrari, D Donati
BACKGROUND: Soft tissue sarcomas are often inappropriately excised; it is, however, still a matter of debate whether the presence of residual disease in the re-excision specimen can affect patients' prognosis. The aim of this study is to investigate the impact of re-excision after unplanned surgery of primary soft tissue sarcomas (STS) of the extremities. PATIENTS AND METHODS: We retrospectively evaluated 452 adults with grade 2-3, localized STS (349 primary and 103 unplanned excisions)...
April 25, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28443816/segmental-volvulus-in-the-neonate-a-particular-clinical-entity
#3
Naziha Khen-Dunlop, Sylvie Beaudoin, Blandine Marion, Véronique Rousseau, Agnes Giuseppi, Muriel Nicloux, David Grevent, Laurent J Salomon, Yves Aigrain, Alexandre Lapillonne, Sabine Sarnacki
BACKGROUND: Complete intestinal volvulus is mainly related to congenital anomalies of the so-called intestinal malrotation, whereas segmental volvulus appears as a distinct entity, mostly observed during the perinatal period. Because these two situations are still lumped together, the aim of this study was to describe the particular condition of neonatal segmental volvulus. STUDY DESIGN: We analyzed the circumstances of diagnosis and management of 17 consecutives neonates operated for segmental volvulus more than a 10-year period in a single institution...
March 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28443369/electro-activation-of-persulfate-using-iron-sheet-as-low-cost-electrode-the-role-of-the-operating-conditions
#4
Jefferson E Silveira, Tais O Cardoso, Marcio Barreto-Rodrigues, Juan A Zazo, José A Casas
This work assesses the role of the operational conditions upon the electro-activation of persulfate (PS) using sacrificed iron electrode as a continuous low-cost Fe(2+) source. An aqueous phenol solution (100 mg L(-1)) was selected as model effluent. The studied variables include current density (1-10mA cm(-2)), persulfate concentration (0.7-2.85 g L(-1)), temperature (30-90°C>) and the solution conductivity (2.7 to 20.7 mS cm(-1)) using Na2SO4 and NaCl as supporting electrolyte. A mineralization degree around 80% with Na2SO4 and 92% in presence of NaCl was achieved at 30°C using 2...
April 26, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28442848/dermatofibrosarcoma-protuberance-of-the-breast-a-diagnostic-challenge
#5
Ismail A S Burud, Ng Sze How, Gan CheeWei, Suboh Roslina
Dermatofibrosarcoma protuberans (DFSP) is an uncommon slow growing neoplasm of the dermis with tendency to invade the subcutaneous tissues. It presents during the third to fourth decade of life and is commonly seen over the trunk, extremities and head and neck. DFSP presenting as a breast lump is rare but few cases have been reported in the literature. Pre-operative diagnosis with mammography, ultrasonography and FNAC is challenging. We report a case of a DFSP of the right breast in a middle aged lady with history of recurrent breast lumps excised and diagnosed in the past as benign...
April 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28442608/unexpected-relations-of-historical-anthrax-strain
#6
M H Antwerpen, J W Sahl, D Birdsell, T Pearson, M J Pearce, C Redmond, H Meyer, P S Keim
In 1998, it was claimed that an 80-year-old glass tube intentionally filled with Bacillus anthracis and embedded in a sugar lump as a WWI biological weapon still contained viable spores. Today, genome sequencing of three colonies isolated in 1998 and subjected to phylogenetic analysis surprisingly identified a well-known B. anthracis reference strain isolated in the United States in 1981, pointing to accidental laboratory contamination.IMPORTANCE Next-generation sequencing and subsequent phylogenetic analyses are useful and reliable tools for the classification of recent and historical samples...
April 25, 2017: MBio
https://www.readbyqxmd.com/read/28436344/inattention-tests-for-delirium
#7
Paul Regal
Voyer and colleagues (2016) report an interesting and important comparison of ten attention/concentration tests for DSM-5 delirium. I have a number of questions and comments as follows: (1) What training did the research assistants have? DSM-5 diagnosis is generally regarded as a decision by medical specialists. When the person has prior dementia, identifying delirium is a high-level medical skill. Behavioral and psychological symptoms of dementia can closely mimic delirium unless the examiner focuses on behavioral triggers and the speed of cognitive decline...
April 24, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28432953/new-and-practical-mathematical-model-of-membrane-fouling-in-an-aerobic-submerged-membrane-bioreactor
#8
Mst Fazana Rahman Zuthi, Wenshan Guo, Huu Hao Ngo, Duc Long Nghiem, Faisal I Hai, Siqing Xia, Jianxin Li, Jixiang Li, Yi Liu
This study aimed to develop a practical semi-empirical mathematical model of membrane fouling that accounts for cake formation on the membrane and its pore blocking as the major processes of membrane fouling. In the developed model, the concentration of mixed liquor suspended solid is used as a lumped parameter to describe the formation of cake layer including the biofilm. The new model considers the combined effect of aeration and backwash on the foulants' detachment from the membrane. New exponential coefficients are also included in the model to describe the exponential increase of transmembrane pressure that typically occurs after the initial stage of an MBR operation...
April 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28428440/-i-ve-got-a-lump-in-my-throat
#9
Anam Ahmad, Gerald George
No abstract text is available yet for this article.
April 20, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28420534/adaptive-compensation-control-for-attitude-adjustment-of-quad-rotor-unmanned-aerial-vehicle
#10
Zhankui Song, Kaibiao Sun
A compensation control strategy based on adaptive back-stepping technique is presented to address the problem of attitude adjustment for a quad-rotor unmanned aerial vehicle (QR- UAV) with inertia parameter uncertainties, the limited airflow disturbance and the partial loss of rotation speed effectiveness. In the design process of control system, adaptive estimation technique is introduced into the closed loop system in order to compensate the lumped disturbance term. More specifically, the designed controller utilizes "prescribed performance bounds" method, and therefore guarantees the transient performance of tracking errors, even in the presence of the lumped disturbance...
April 15, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28415195/ultrafast-probing-of-magnetic-field-growth-inside-a-laser-driven-solenoid
#11
C Goyon, B B Pollock, D P Turnbull, A Hazi, L Divol, W A Farmer, D Haberberger, J Javedani, A J Johnson, A Kemp, M C Levy, B Grant Logan, D A Mariscal, O L Landen, S Patankar, J S Ross, A M Rubenchik, G F Swadling, G J Williams, S Fujioka, K F F Law, J D Moody
We report on the detection of the time-dependent B-field amplitude and topology in a laser-driven solenoid. The B-field inferred from both proton deflectometry and Faraday rotation ramps up linearly in time reaching 210 ± 35 T at the end of a 0.75-ns laser drive with 1 TW at 351 nm. A lumped-element circuit model agrees well with the linear rise and suggests that the blow-off plasma screens the field between the plates leading to an increased plate capacitance that converts the laser-generated hot-electron current into a voltage source that drives current through the solenoid...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28413544/abdominal-schwannoma-in-a-case-of-neurofibromatosis-type-2-a-report-of-a-rare-combination
#12
Khandkar Ali Kawsar, Md Raziul Haque, Forhad Hossain Chowdhury
Neurofibromatosis-2 (NF2) is an autosomal-dominant disease, which is characterized by vestibular schwannomas (VSs) (acoustic neurinoma) as well as tumours of the peripheral and central nervous system, demonstrating a variety of expression. A 12-year-old girl presented to us with headache and ataxia for four months. We examined and found a lump in the right side of her abdomen. On magnetic resonance imaging (MRI) of brain, a bilateral VS at the cerebellopontine (CP) angle was detected, and on computerized tomography (CT) scan and ultrasonography of her abdomen a large retroperitoneal schwannoma was revealed in the right side of her abdomen...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28413396/mammary-analogue-secretory-carcinoma-presenting-as-a-cervical-lymph-node-metastasis-of-unknown-primary-site-a-case-report
#13
Kensuke Suzuki, Masao Yagi, Akira Kanda, Yoshiki Kobayashi, Masaya Konishi, Chika Miyasaka, Takashi Tashiro, Hiroshi Iwai
BACKGROUND: Mammary analogue secretory carcinoma (MASC) is a pathological entity arising in the salivary glands first described by Skalova et al. [Am J Surg Pathol 2010;34: 599-608]. Here, we report the first case of MASC presenting as a cervical lymph node metastasis of unknown primary site together with a brief review of the literature. CASE REPORT: We present a 74-year-old male with a painless lump in his left neck. Based on the fine-needle aspiration cytological findings, a possible malignant tumor was suspected...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28413369/evaluation-of-quality-indicators-of-integrated-care-in-a-regional-psychiatry-budget-a-pre-post-comparison-by-secondary-data-analysis
#14
Anne Berghöfer, Svenja Hubmann, Thomas Birker, Torsten Hejnal, Felix Fischer
The Regional Psychiatry Budget (RPB), as a special arrangement within the German Federal Hospital Refund Regulation, is based on the capitation principle. A lump sum is allocated to a major inpatient care provider in a large region on a yearly basis. Under this model, the provider is free to offer all forms of treatment and to construct individual models of integrated care that specifically suit the region and the needs of community members. The present study aimed to evaluate selected aspects that represent a change in the psychiatric health status of patients in the covered region under the conditions of the RPB...
December 31, 2016: International Journal of Integrated Care
https://www.readbyqxmd.com/read/28401875/-tumors-of-unknown-origin-case-report
#15
Arni Jon Geirsson, Sigridur Thordis Valtysdottir, Andres Sigvaldason, Margret Sigurdardottir
IgG4 related disease is a recently recognized chronic fibrotic, inflammatory condition, caused by infiltrating IgG4 positive plasma cells that can cause tumor like disease in almost any organ in the body. Typical histopathology is lymphoplasmocytic infiltration of IgG4 positive cells, storiform fibrosis and obliterative phlebitis. Glucocorticoids alone or in combination with B-cell depletion with rituximab causes often good, lasting response. We present here a lady with recurrent lung infiltration that simulated pneumonia and later tumor of the lung...
April 2017: Læknablađiđ
https://www.readbyqxmd.com/read/28399518/validation-and-modification-of-the-masood-scoring-index-for-the-diagnosis-of-atypical-breast-lesions
#16
Shruti Semwal, Deepti Joshi, Akriti Khare, Garima Goel, Neelkamal Kapoor
INTRODUCTION: Cytological diagnosis of borderline breast lesions remains challenging, and interobserver variability exists in their interpretation. The Masood scoring index (MSI) has been proposed to help in the subgrouping of breast lesions using objective criteria. AIM: The aim of the present study was to assess the interobserver variability in the scoring of breast lesions according to MSI and to see the utility of a modified scheme for discriminating benign and atypical lesions...
April 12, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28397391/simple-nanodroplet-templating-functional-surfaces-with-tailored-wettability-and-microstructures
#17
Shuhua Peng, Xuehua Zhang
Recently, solvent exchange has been demonstrated as a simple, solution based approach for the controlled formation of surface nanodroplets over large areas. The as-formed surface nanodroplets provide new opportunities for a wide range of droplet based applications. In this work, we demonstrate that surface nanodroplets can be used as versatile structural templates for fabrication of functional surfaces with tailored wettability and morphology. Guided by the microstructural and wetting properties of desert beetle back and cactus spine, we prepared two types of functional surfaces...
April 10, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28395362/phylogenetic-analysis-and-molecular-characterization-of-xanthium-sibiricum-using-dna-barcoding-pcr-rflp-and-specific-primers
#18
Salvatore Tomasello, Günther Heubl
The fruits of Xanthium sibiricum have been widely used in traditional Chinese medicine for the treatment of nasal sinusitis and headaches. The genus Xanthium (cocklebur) is a taxonomically complex genus. Different taxonomic concepts have been proposed, some including several species, others lumping the different taxa in a few extremely polymorphic species. Due to the morphological similarities between species, the correct authentication of X. sibiricum is very difficult. Therefore, we established a polymerase chain reaction-restriction fragment length polymorphism method and diagnostic PCR based on nuclear internal transcribed spacer and chloroplast trnQ-rps16 barcodes to differentiate X...
April 10, 2017: Planta Medica
https://www.readbyqxmd.com/read/28394552/multiple-intracranial-schwannomas-case-report
#19
Mario Mihalj, Krešimir Dolić, Pavao Jurinović, Nikolina Ivica Miše, Marina Titlić, Irena Pintarić
Schwannomas are benign encapsulated tumors arising from the sheaths of peripheral nerves. They present as slowly enlarging solitary lumps, which may cause neurological defects. Multiple schwannomas in non-neurofi bromatosis type 2 patients are extremely rare. We report a case of a 60-year-old female patient, without any family history of neurofibromatosis or schwannomatosis, presented with trigeminal neuralgia and progressive facial nerve palsy. Magnetic resonance imaging revealed the presence of acoustic schwannoma involving facial nerve and trigeminal schwannoma of the cisternal part of the nerve involving gasserian ganglion (Meckel’s cave)...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28391652/investigation-on-the-incidence-of-adverse-reactions-viraemia-and-haematological-changes-following-field-immunization-of-cattle-using-a-live-attenuated-vaccine-against-lumpy-skin-disease
#20
P-D Katsoulos, S C Chaintoutis, C I Dovas, Z S Polizopoulou, G D Brellou, E I Agianniotaki, K E Tasioudi, E Chondrokouki, O Papadopoulos, H Karatzias, C Boscos
The present study was performed to investigate the clinical impact and certain virological and haematological parameters following immunization of cattle against lumpy skin disease (LSD). The study was conducted in a dairy cattle farm (215 animals), immunized with a Neethling strain-based live vaccine. Twenty-seven animals (14 lactating cows, four dry cows and nine calves) were randomly selected for repetitive blood and saliva samplings. An EvaGreen-based real-time PCR was designed to differentiate vaccine from field LSDVs...
April 8, 2017: Transboundary and Emerging Diseases
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