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A Campollo-Ovalle, D Sánchez
Lestrimelitta spp. are stingless bees that steal food and nesting materials from other highly social bees to survive. Though most of their victim species respond, either aggressively or submissively, to cephalic components of Lestrimelitta, little is known about if such response changes at some point during extended periods of exposure. Moreover, potential synergistic effects due to a mixture of victim's alarm/defense pheromones and Lestrimelitta mandibular pheromones, like in an actual attack, have not been examined so far...
March 16, 2018: Neotropical Entomology
Mehmet Akif Cakar, Ersun Tatli, Alptug Tokatli, Harun Kilic, Huseyin Gunduz, Ramazan Akdemir
INTRODUCTION: Percutaneous endovascular therapy is an accepted and preferred procedure for symptomatic subclavian artery disease. However, the technical feasibility and effectiveness of treating chronic total occlusion of the subclavian artery with this approach is uncertain. We aimed to evaluate the initial and mid-term results of endovascular therapy for patients with symptomatic chronic total occlusion of the left subclavian artery. METHODS: Consecutive patients who underwent balloon angioplasty and stenting for chronic total occlusion of the left subclavian artery between January 2010 and February 2014 were included...
March 16, 2018: Singapore Medical Journal
Anne A Fast, Jennifer Van Reet
Is it wrong to pretend to kick or pretend to steal? The current experiment examined whether preschoolers extend their moral principles from reality into pretense and whether this transfer depends on the proximity of the pretend world to the real world. Children are known to transfer their knowledge of object properties, causality, and problem solutions between pretend and real worlds. However, do children maintain their real-world moral reasoning in pretense? Preschoolers (N = 63) judged the acceptability of antisocial behaviors in pretend, fantastical, or non-pretend scenarios...
January 2018: Cognitive Development
Chundong Wang, Likun Zhu, Liangyi Gong, Zhentang Zhao, Lei Yang, Zheli Liu, Xiaochun Cheng
With the development of the Internet-of-Things (IoT), wireless network security has more and more attention paid to it. The Sybil attack is one of the famous wireless attacks that can forge wireless devices to steal information from clients. These forged devices may constantly attack target access points to crush the wireless network. In this paper, we propose a novel Sybil attack detection based on Channel State Information (CSI). This detection algorithm can tell whether the static devices are Sybil attackers by combining a self-adaptive multiple signal classification algorithm with the Received Signal Strength Indicator (RSSI)...
March 15, 2018: Sensors
Yoko Kaneko, Takamoto Yanagawa, Yoshinori Taru, Sonoko Hayashi, Hong Zhang, Tomoki Tsukahara, Tsuneaki Matsunaga, Takashi Ishizu
INTRODUCTION: We describe a hemodialysis patient who developed subclavian steal syndrome via an arteriovenous fistula after percutaneous transluminal angioplasty. CASE DESCRIPTION: A 55-year-old female with end-stage renal failure due to polycystic kidney disease had been treated with hemodialysis for 10 years. Because of an autologous arteriovenous fistula stenosis, percutaneous transluminal angioplasty was performed. After successful treatment with percutaneous transluminal angioplasty, the patient developed dizziness...
March 1, 2018: Journal of Vascular Access
Yang-Yang Fei, Xiang-Dong Meng, Ming Gao, Hong Wang, Zhi Ma
Quantum key distribution (QKD) protocol has been proved to provide unconditionally secure key between two remote legitimate users in theory. Key distribution signals are transmitted in a quantum channel which is established by the calibration process to meet the requirement of high count rate and low error rate. All QKD security proofs implicitly assume that the quantum channel has been established securely. However, the eavesdropper may attack the calibration process to break the security assumption of QKD and provide precondition to steal information about the final key successfully...
March 9, 2018: Scientific Reports
Kelsey D Oliva, Jill M Cavanaugh, Brian A Cobb
Immunoglobulin G (IgG) antibodies function, in part, through ligation of cell-surface Fc receptors such as FcγRIIIA (also known as CD16A). IgG glycosylation is known to impact antibody function, but the role of FcγRIIIA glycans, if any, is unclear. Patel et al. now reveal that these glycans do impact protein conformation and IgG affinity and display cell-specific glycosylation patterns, leading to a potential model in which the affinity and possibly function of Fc receptors is dictated by the cell type and its surface glycome...
March 9, 2018: Journal of Biological Chemistry
Dario Buccheri, Paola Rosa Chirco, Salvatore Geraci, Giuseppe Caramanno, Bernardo Cortese
Coronary artery fistula (CAF) is a relatively rare anatomic abnormality of the coronary arteries that afflicts 0.002% of the general population and represents 14% of all the anomalies of coronary arteries. Its clinical relevance focusses mainly on the mechanism of "coronary steal phenomenon", causing myocardial functional ischaemia even in the absence of stenosis, hence common symptoms are angina or effort dyspnoea. The suggested diagnostic approach is guided by the patient's symptoms and consists of a number of instrumental examinations like ECG, treadmill test, echocardiography, computed tomography scan, cardiac magnetic resonance and coronary angiography...
February 9, 2018: Heart, Lung & Circulation
Zheng-Hong Li, M Suhail Zubairy, M Al-Amri
We propose a quantum secure group communication protocol for the purpose of sharing the same message among multiple authorized users. Our protocol can remove the need for key management that is needed for the quantum network built on quantum key distribution. Comparing with the secure quantum network based on BB84, we show our protocol is more efficient and securer. Particularly, in the security analysis, we introduce a new way of attack, i.e., the counterfactual quantum attack, which can steal information by "invisible" photons...
March 1, 2018: Scientific Reports
Mitch Leslie
No abstract text is available yet for this article.
March 2, 2018: Science
Ihsen Zairi, Khadija Mzoughi, Zouhaier Jnifene, Marouene Boukhris, Kaies Mrabet, Sondos Kraiem
No abstract text is available yet for this article.
April 2017: La Tunisie Médicale
Bishwarup Paul, Sumana Annagiri
Thievery is ubiquitous in the animal kingdom, social insects not being an exception. Brood is invaluable for the survival of social insect colonies and brood theft is well documented in ants. In many species the stolen brood act as slaves in the thief colony as they take up tasks related to foraging, defence and colony maintenance. Slave-making (dulotic) ants are at an advantage as they gain workforce without investing in rearing immature young, and several slave-making species have been recorded in temperate regions...
2018: PloS One
Kelly A Lara, Rochelle Anne Chua, Trung D Vo
Autogenous arteriovenous fistula (AVF) is the primary recommended access for hemodialysis. Long term use will not uncommonly result in AVF aneurysmal degeneration. Aneurysm associated complications encompass pain, skin ulceration, infection, thrombosis, cannulation difficulties, and life-threatening bleeding. Various methods to repair aneurysmal AVFs have been described. However, there may be circumstances when this is not possible, and require insertion of a temporary hemodialysis catheter (HDC) until a new arteriovenous access is created...
February 23, 2018: Annals of Vascular Surgery
Akira Tempaku, Terumasa Kuroiwa, Akimasa Nishio
Purpose Right-sided aortic arch is a rare vessel anomaly with an incidence of 0.1% worldwide. Supra-aortic branches form a mirror image of the left-sided aortic arch or an aberrant left subclavian artery associated with Kommerell diverticulum. Most patients are diagnosed by a difference in blood pressure in each upper extremity or by the presence of left subclavian steal syndrome in their younger age. The diagnosis of onset of ischemic stroke in middle age is rare. Methods We present the case of a female patient who presented with an ischemic stroke in the left posterior circulation area...
January 1, 2018: Interventional Neuroradiology
Juan S Rubio, Carolina Rumbo, Pablo A Farinelli, Nicolás Aguirre, Diego A Ramisch, Hugo Paladini, Pablo D Angelo, Pablo Barros Schelotto, Gabriel E Gondolesi
Collateral circulation secondary to liver cirrhosis may cause the development of large PSSs that may steal flow from the main portal circulation. It is important to identify these shunts prior to, or during the transplant surgery because they might cause an insufficient portal flow to the implanted graft. There are few reports of "steal flow syndrome" cases in pediatrics, even in biliary atresia patients that may have portal hypoplasia as an associated malformation. We present a 12-month-old female who received an uneventful LDLT from her mother, and the GRWR was 4...
February 16, 2018: Pediatric Transplantation
Dakota M Spear, William A Foster, Andreas Dwi Advento, Mohammad Naim, Jean-Pierre Caliman, Sarah H Luke, Jake L Snaddon, Sudharto Ps, Edgar C Turner
Expansion of oil palm agriculture is currently one of the main drivers of habitat modification in Southeast Asia. Habitat modification can have significant effects on biodiversity, ecosystem function, and interactions between species by altering species abundances or the available resources in an ecosystem. Increasing complexity within modified habitats has the potential to maintain biodiversity and preserve species interactions. We investigated trophic interactions between Argyrodes miniaceus, a cleptoparasitic spider, and its Nephila spp...
February 2018: Ecology and Evolution
Georgios Sahsamanis, Georgios Vourliotakis, Konstantinos Pirgakis, Anastasios Lekkas, Ioannis Kantounakis, Alexandra Terzoglou, Vasileios Tzilalis
BACKGROUND: Right-sided subclavian artery stenosis is a rare cerebrovascular disease involving the upper extremities. Considering an endovascular approach for its management requires increased endovascular and catheterization skills, when compared to the left side, due to the close approximation of the right subclavian artery origin, vertebral and common carotid arteries. METHODS: Three patients suffering from proximal right sided subclavian artery stenosis were treated in our center through primary stenting...
February 5, 2018: Annals of Vascular Surgery
Oana Anisa Nutu, Iago Justo Alonso, Alberto Alejandro Marcacuzco Quinto, Jorge Calvo Pulido, Luis Carlos Jiménez Romero
Refractory ascites is an uncommon complication that may develop postoperatively after liver transplantation. The diagnosis and treatment of this condition is a real challenge. We report two cases of patients who underwent a transplant due to cryptogenic cirrhosis and developed refractory ascites during the immediate postoperative period. This is a serious complication associated with decreased survival by up to one year and a reduced quality of life. After ruling out the main causes of ascites, a portal hyperflow was a potential etiology...
February 7, 2018: Revista Española de Enfermedades Digestivas
Moataz Ehab Mohamed, Nagla Mohy, Sarah Salah
AIMS: The Survey aimed to capture the perceptions of undergraduate pharmacy students towards plagiarism in three major public universities in Cairo, Egypt; Helwan, Ain-Shams, and Cairo Universities. METHODS: This was a paper- based self-administrated survey study. The questionnaire was validated by both content and face validation. The final survey form captured the knowledge of the students on plagiarism definition, attitudes and practicing of plagiarism. RESULTS: Four hundred and fourteen students, 320 females and 94 males, participated in the study...
February 4, 2018: Accountability in Research
Laura Czech, Erhard Bremer
The cellular adjustment of Bacteria and Archaea to high-salinity habitats is well studied and has generally been classified into one of two strategies. These are to accumulate high levels either of ions (the "salt-in" strategy) or of physiologically compliant organic osmolytes, the compatible solutes (the "salt-out" strategy). Halophilic protists are ecophysiological important inhabitants of salt-stressed ecosystems because they are not only very abundant but also represent the majority of eukaryotic lineages in nature...
February 2018: PLoS Biology
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