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https://www.readbyqxmd.com/read/29343738/critical-conditions-for-escape-of-a-high-speed-fullerene-from-a-bnc-nanobeam-after-collision
#1
Kun Cai, Li-Kui Yang, Jiao Shi, Qing-Hua Qin
For a resonator-based nano-balance, the capability of capturing a nanoparticle is essential for it to measure the mass of the particle. In the present study, a clamped-clamped nanobeam from a Boron-Nitride and Carbon (BNC) nanotube acts as the nano-balance, and a fullerene, e.g., C60, is chosen as the particle, and the capturing capability is quantitatively estimated by the minimal escape velocity (MEV) of the fullerene from the nanobeam after collision. When centrally colliding with the nanobeam, the escape of fullerene depends on both incidence of fullerene and temperature of the system...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334776/multiple-intracranial-aneurysms-in-a-patient-with-type-i-gaucher-disease-a-case-report-and-literature-review
#2
Matthew R Reynolds, Daniel M Heiferman, Andrew B Boucher, Brian M Howard, Daniel L Barrow, Jacques E Dion
Multiple intracranial aneurysms (IAs) have never been reported in a patient with Gaucher disease (GD). A 69-year-old-female with type I GD presented with a left sixth nerve palsy due to a large posterior inferior cerebellar artery (PICA) aneurysm. Cerebral angiography demonstrated fifteen unruptured IAs (UIAs).
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29330412/high-expression-of-endogenous-retroviruses-from-intrauterine-life-to-adulthood-in-two-mouse-models-of-autism-spectrum-disorders
#3
Chiara Cipriani, Laura Ricceri, Claudia Matteucci, Alessia De Felice, Anna Maria Tartaglione, Ayele Argaw-Denboba, Francesca Pica, Sandro Grelli, Gemma Calamandrei, Paola Sinibaldi Vallebona, Emanuela Balestrieri
Retroelements, such as Human Endogenous Retroviruses (HERVs), have been implicated in many complex diseases, including neurological and neuropsychiatric disorders. Previously, we demonstrated a distinctive expression profile of specific HERV families in peripheral blood mononuclear cells from Autistic Spectrum Disorders (ASD) patients, suggesting their involvement in ASD. Here we used two distinct ASD mouse models: inbred BTBR T+tf/J mice and CD-1 outbred mice prenatally exposed to valproic acid. Whole embryos, blood and brain samples from the offspring were collected at different ages and the expression of several ERV families (ETnI, ETnII-α, ETnII-β, ETnII-γ, MusD and IAP), proinflammatory cytokines (IL-1β, IL-6 and TNF-α) and Toll-like receptors (TLR3 and TLR4) was assessed...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322965/endovascular-strategies-for-management-of-intradural-vertebral-artery-dissecting-aneurysms
#4
Swati D Chinchure, Vijay Jaykrishnan, B P Krishna Prasad
OBJECTIVE: Endovascular treatment of vertebral intradural dissecting aneurysms is complex and requires different strategies for each case. The current study aims to classify these aneurysms for an easy selection of optimal strategies for endovascular therapy. MATERIALS AND METHODS: This study is a retrospective evaluation of 10 patients harbouring a vertebral intradural dissecting aneurysm (including 6 female and 4 male patients). The clinical, procedural, and angiographic data were evaluated...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29312715/multidisciplinary-approach-to-chest-wall-resection-and-reconstruction-for-chest-wall-tumors-a-single-center-experience
#5
Elisa Scarnecchia, Valeria Liparulo, Alessandra Pica, Giuseppe Guarro, Carmine Alfano, Francesco Puma
Background: Chest wall resection and reconstruction (CWRR) is quite challenging in surgery, due to evolution in techniques. Neoplasms of the chest wall, primary or secondary, have been considered inoperable for a long time. Thanks to evolving surgical techniques, reconstruction after extensive chest wall resection is possible with good functional and aesthetic results. Methods: In our single-center experience, seven cases of extensive CWRR for tumors were performed with a multidisciplinary approach by both thoracic and plastic surgeons...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29301049/treatment-of-an-anterior-inferior-cerebellar-artery-aneurysm-with-microsurgical-trapping-and-in-situ-posterior-inferior-cerebellar-artery-to-anterior-inferior-cerebellar-artery-bypass-case-report
#6
Bryan S Lee, Alex M Witek, Nina Z Moore, Mark D Bain
BACKGROUND: Anterior inferior cerebellar artery (AICA) aneurysms are rare lesions whose treatment can involve microsurgical and/or endovascular techniques. Such treatment can be challenging and may carry a significant risk of neurological morbidity. OBJECTIVE: To demonstrate a case involving a complex AICA aneurysm that was treated with a unique microsurgical approach involving trapping the aneurysm and performing in Situ bypass from the posterior inferior cerebellar artery (PICA) to the distal AICA...
December 30, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29300352/risk-assessment-for-children-exposed-to-arsenic-on-baseball-fields-with-contaminated-fill-material
#7
Alesia C Ferguson, Jennifer C Black, Isaac B Sims, Jennifer N Welday, Samir M Elmir, Kendra F Goff, J Mark Higginbotham, Helena M Solo-Gabriele
Children can be exposed to arsenic through play areas which may have contaminated fill material from historic land use. The objective of the current study was to evaluate the risk to children who play and/or spend time at baseball fields with soils shown to have arsenic above background levels. Arsenic in soils at the study sites located in Miami, FL, USA showed distinct distributions between infield, outfield, and areas adjacent to the fields. Using best estimates of exposure factors for children baseball scenarios, results show that non-cancer risks depend most heavily upon the age of the person and the arsenic exposure level...
January 4, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29297106/idalopirdine-a-selective-5-ht6-receptor-antagonist-reduces-food-intake-and-body-weight-in-a-model-of-excessive-eating
#8
Magdalena Kotańska, Klaudia Lustyk, Adam Bucki, Monika Marcinkowska, Joanna Śniecikowska, Marcin Kołaczkowski
Obesity, from early childhood onwards, is a common societal problem. The overconsumption of sweet, salty and high-fat products are the main factors that cause excessive weight gain. It is therefore necessary to search for new drugs that affect satiety centers and reduce the sense of hunger and caloric intake. It has been suggested that the blockade of 5-HT6 receptors may reduce food intake, and since idalopirdine is a clinically tested, selective 5HT6 receptor antagonist, it was chosen to be examined in animal models of obesity...
January 3, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29294918/abuse-is-abuse-the-influence-of-type-of-abuse-victim-age-and-defendant-age-on-juror-decision-making
#9
Chelsea L Sheahan, Emily Pica, Joanna D Pozzulo
The purpose of the current study was to examine the role of victim age, defendant age, and type of abuse on mock juror decision making. Mock jurors ( N = 556) read a trial transcript in which a soccer coach was accused of sexual abuse or physical abuse against a player. The victim's age (child, adolescent, or young adult), the defendant's age (young, middle age, or older adult), and the type of abuse (sexual or physical) were varied. Mock jurors provided a dichotomous and continuous verdict and rated their perceptions of the victim and the defendant...
September 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29294785/-but-he-s-a-star-football-player-how-social-status-influences-mock-jurors-perceptions-in-a-sexual-assault-case
#10
Emily Pica, Chelsea Sheahan, Joanna Pozzulo
There have been several recent, high-profile cases in the media that have shed light on the perceived leniency in sentencing defendants in sexual assault cases. In a number of these cases, the defendant was well known within their community (e.g., Brock Turner; People v. Turner) or nationally (e.g., Ghomeshi; R v. Ghomeshi). The purpose of this study was to examine how the social status of the defendant (low vs. high), victim social status (low vs. high), victim gender (male vs. female), and the reason the victim was unconscious during the assault (consuming alcohol vs...
June 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29288772/ph-driven-fibrillar-aggregation-of-the-super-sweet-protein-y65r-mnei-a-step-by-step-structural-analysis
#11
Andrea Pica, Serena Leone, Rocco Di Girolamo, Federica Donnarumma, Alessandro Emendato, Michele Fortunato Rega, Antonello Merlino, Delia Picone
BACKGROUND: MNEI and its variant Y65R-MNEI are sweet proteins with potential applications as sweeteners in food industry. Also, they are often used as model systems for folding and aggregation studies. METHODS: X-ray crystallography was used to structurally characterize Y65R-MNEI at five different pHs, while circular dichroism and fluorescence spectroscopy their thermal and chemical stability. ThT assay and AFM were used for studying the kinetics of aggregation and morphology of the aggregates...
December 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29288330/evaluation-of-vertebral-artery-anomaly-in-basilar-invagination-and-prevention-of-vascular-injury-during-surgical-intervention-cta-features-and-analysis
#12
Shuaishuai Xu, Shidong Ruan, Xiaoyu Song, Jinyu Yu, Jianrong Xu, Ruozhen Gong
OBJECTIVE: To evaluate vertebral artery anomaly at the craniovertebral junction (CVJ) in patients with basilar invagination (BI) by computed tomographic angiography (CTA), and to discuss the prevention strategy of vascular injury. METHODS: The primary axial, multiple planar reconstruction and volume-rendering cervicocranial CTA images of 39 BI patients were analysed to evaluate vertebral artery anomaly at the CVJ: persistent first intersegmental artery (PFIA), fenestrated vertebral artery (FEN), and extracranial C1/2 origin of posterior inferior cerebellar artery (PICA), high-riding vertebral artery, side-to-side asymmetry and irregular midline carotid artery loop was determined by subjective vision...
December 29, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29277587/the-use-of-flow-diverter-in-ruptured-dissecting-intracranial-aneurysms-of-the-posterior-circulation
#13
Volker Maus, Anastasios Mpotsaris, Franziska Dorn, Markus Möhlenbruch, Jan Borggrefe, Pantelis Stavrinou, Nuran Abdullayev, Utako Birgit Barnikol, Thomas Liebig, Christoph Kabbasch
OBJECTIVE: Acute dissecting aneurysms of the posterior circulation are a rare cause of SAH. Established endovascular treatment options include PAO and stent-assisted coiling, but appear to be associated with an increased risk of ischemic stroke. Vessel reconstruction with flow-diverters is an alternative treatment option, however, its safety and efficacy in the acute stage remains unclear. METHODS: Multi-centric retrospective analysis of 15 consecutive acutely ruptured dissecting posterior circulation aneurysms treated with flow-diverters...
December 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29227523/childhood-ingestions-of-environmental-toxins-what-are-the-risks
#14
Marissa Hauptman, Alan D Woolf
Infants and children are at higher risk than adolescents and adults for exposure to environmental toxins via ingestion for a number of reasons: their smaller size (and proportionately larger dose of ingested toxins), their closer proximity to the ground, dirt, and indoor dust, their boundless curiosity and oral exploratory behaviors, pica habits that may persist into school-age for children with autism or other developmental delays, their proportionately larger daily water and milk intake, and food preferences that differ markedly from adolescents and adults...
December 1, 2017: Pediatric Annals
https://www.readbyqxmd.com/read/29225989/case-report-of-foreign-body-stuck-in-esophagus-with-failure-of-endoscopic-management-in-a-man-with-a-history-of-pica
#15
Holly Mulinder, Allison Ammann, Yana Puckett, Sharmila Dissanaike
This is a case report of foreign body ingestion in a 55-year-old intellectually disabled man with a history of pica and previous removal of ten plastic gloves from his rectum four months prior to this presentation. The patient presented after ingesting plastic gloves which formed large, rigid esophageal and gastric bezoars that were not amenable to endoscopic removal. An exploratory laparotomy and gastrostomy was performed, and a 10 × 4.5 × 2 cm gastric bezoar consisting of rigid plastic gloves was removed without complication...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/29220377/3d-diffusion-model-within-the-collagen-apatite-porosity-an-insight-to-the-nanostructure-of-human-trabecular-bone
#16
Fabiano Bini, Andrada Pica, Andrea Marinozzi, Franco Marinozzi
Bone tissue at nanoscale is a composite mainly made of apatite crystals, collagen molecules and water. This work is aimed to study the diffusion within bone nanostructure through Monte-Carlo simulations. To this purpose, an idealized geometric model of the apatite-collagen structure was developed. Gaussian probability distribution functions were employed to design the orientation of the apatite crystals with respect to the axes (length L, width W and thickness T) of a plate-like trabecula. We performed numerical simulations considering the influence of the mineral arrangement on the effective diffusion coefficient of water...
2017: PloS One
https://www.readbyqxmd.com/read/29204032/subarachnoid-hemorrhage-due-to-ruptured-intracranial-aneurysm-arising-from-a-vertebral-artery-bihemispheric-posterior-inferior-cerebellar-artery-bifurcation
#17
Yasushi Ogasawara, Hiroshi Kashimura, Kenta Aso, Hiroaki Saura
Although the anatomy of the posterior inferior cerebellar artery (PICA) is highly variable, a solitary PICA supplying both hemispheres of the cerebellum is rare. A 76-year-old woman presented with severe headache and subsequent loss of consciousness and was admitted to our hospital. Initial computed tomography showed subarachnoid hemorrhage. Three-dimensional digital subtraction angiography revealed a saccular aneurysm arising from the right vertebral artery (VA)-PICA bifurcation. The PICA branching from the right VA was enlarged, tortuous, and crossed the midline to supply both cerebellar hemispheres...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29203291/independent-component-analysis-for-rectal-bleeding-prediction-following-prostate-cancer-radiotherapy
#18
Auréline Fargeas, Oscar Acosta, Juan David Ospina Arrango, Amine Ferhat, Nathalie Costet, Laurent Albera, David Azria, Pascal Fenoglietto, Gilles Créhange, Véronique Beckendorf, Mathieu Hatt, Amar Kachenoura, Renaud de Crevoisier
BACKGROUND AND PURPOSE: To evaluate the benefit of independent component analysis (ICA)-based models for predicting rectal bleeding (RB) following prostate cancer radiotherapy. MATERIALS AND METHODS: A total of 593 irradiated prostate cancer patients were prospectively analyzed for Grade ≥2 RB. ICA was used to extract two informative subspaces (presenting RB or not) from the rectal DVHs, enabling a set of new pICA parameters to be estimated. These DVH-based parameters, along with others from the principal component analysis (PCA) and functional PCA, were compared to "standard" features (patient/treatment characteristics and DVH bins) using the Cox proportional hazards model for RB prediction...
December 1, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29192876/posterior-inferior-cerebellar-artery-with-an-extradural-origin-from-the-v3-segment-higher-incidence-on-the-nondominant-vertebral-artery
#19
Taiki Isaji, Muneyoshi Yasuda, Reo Kawaguchi, Masahiro Aoyama, Aichi Niwa, Takahiro Nakura, Naoki Matsuo, Masakazu Takayasu
OBJECTIVE The posterior inferior cerebellar artery (PICA) and the vertebral artery (VA) often exhibit anatomical variations at the craniovertebral junction (CVJ). An example of this is the PICA originating extradurally from the V3 segment of the VA. To date, some cadaveric investigations have been reported, but the incidence and relationship of this variation to the VA and the atlas as observed on clinical imaging have not been discussed. This study evaluated the prevalence of PICAs originating from the V3 on CT scanning...
December 1, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29187607/interactions-between-cleaner-birds-and-ungulates-are-personality-dependent
#20
Rob Found
While a growing body of literature explores the ecological implications of consistent individual variation in the behaviour of wildlife, few studies have looked at the reciprocal influences of personality within interspecific interactions, despite the potentially significant impacts on biodiversity. Here I used two species involved in cleaner-bird behaviour-black-billed magpies (Pica pica) and Rocky mountain elk (Cervus canadensis)-to show that the exhibition of mutualistic behaviour can depend on the personality of the individual involved...
November 2017: Biology Letters
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