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https://www.readbyqxmd.com/read/28324950/a-preliminary-evaluation-of-myoelectrical-energy-distribution-of-the-front-neck-muscles-in-pharyngeal-phase-during-normal-swallowing
#1
Mingxing Zhu, Wanzhang Yang, Oluwarotimi Williams Samuel, Yun Xiang, Jianping Huang, Haiqing Zou, Guanglin Li
Pharyngeal phase is a central hub of swallowing in which food bolus pass through from the oral cavity to the esophageal. Proper understanding of the muscular activities in the pharyngeal phase is useful for assessing swallowing function and the occurrence of dysphagia in humans. In this study, high-density (HD) surface electromyography (sEMG) was used to study the muscular activities in the pharyngeal phase during swallowing tasks involving three healthy male subjects. The root mean square (RMS) of the HD sEMG data was computed by using a series of segmented windows as myoelectrical energy...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323702/effect-of-an-outer-sleeve-on-an-inflatable-balloon-tamp-in-terms-of-height-restoration-under-simulated-physiological-load
#2
Walter C Peppelman, William Beutler, Michael Gordon, Suresh R Chintakunta, Damien O'Halloran, Brandon Bucklen
STUDY DESIGN: An in vitro biomechanical study. OBJECTIVE: The aim of this study was to determine the effect of an optional sleeve on height restoration and compare it with the fracture reduction achieved by a commercially available inflatable bone tamp under simulated physiological load (110 N). SUMMARY OF BACKGROUND DATA: Loss of reduction after bone tamp deflation before cement injection still remains a concern. The optional sleeve surrounds the bone tamp to help maintain height during the kyphoplasty procedure while filling the created cavity with bone cement on the contralateral side...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28320172/neuropathological-findings-from-an-autopsied-case-showing-posterior-reversible-encephalopathy-syndrome-like-neuroradiological-findings-associated-with-premedication-including-tacrolimus-for-autologous-peripheral-blood-stem-cell-transplantation
#3
Yuichi Hayashi, Akio Kimura, Hiroshi Nakamura, Maya Mimuro, Yasushi Iwasaki, Akira Hara, Mari Yoshida, Takashi Inuzuka
Posterior reversible encephalopathy syndrome (PRES) is diagnosed based on neuroradiological findings. Typically, PRES is reversible and presents with a good outcome; however, fatal outcomes have been reported. We report an autopsied case showing PRES-like neuroradiological findings associated with premedication including tacrolimus for autologous peripheral blood stem cell transplantation in a 28-year-old woman with a 2-year history of acute myeloid sarcoma/acute myeloid leukemia. Neurological examination revealed disturbed consciousness, muscle weakness in all extremities, and bilaterally diminished tendon reflexes...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320044/multiple-concomitant-oral-cavity-cancers-incidence-management-and-outcomes
#4
Huang-Kai Kao, Mohamed Abdelrahman, Yenlin Huang, Chia-Hsuan Tsai, Megias J Barrera, Ngan-Ming Tsang, Adam J Couves, Ming-Huei Cheng, Kai-Ping Chang
BACKGROUND: Little is known about the appropriate treatment and long-term survival of patients with multiple concomitant oral cavity cancers (MOC). The aim of this study was to clarify the clinicopathological features of MOC, to compare the prognosis of MOC patients with that of patients with single oral cavity cancers (SOC), and to describe reconstructive options based on the concept of economy in autologous tissue transfer. METHODS: Data from 603 patients diagnosed with at least one squamous cell carcinoma of the oral cavity who underwent surgery for primary oral cavity cancers between 2006 and 2014 were reviewed retrospectively to identify MOC patients...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28319705/contributions-of-vehicular-emissions-and-secondary-formation-to-nitrous-acid-concentrations-in-ambient-urban-air-in-tokyo-in-the-winter
#5
Yoshihiro Nakashima, Yasuhiro Sadanaga, Shinji Saito, Junya Hoshi, Hiroyuki Ueno
Nitrous acid (HONO) plays an important role in the formation of OH radicals, which are involved in photochemical oxidation. HONO concentrations in ambient air at urban sites have previously been measured, but very few studies have been performed in central Tokyo. In this study, HONO concentrations in ambient air in southeast central Tokyo (near Tokyo Bay) in winter were determined by incoherent cavity enhanced absorption spectroscopy. The O3, NO, NO2, and SO2 concentrations were simultaneously determined. The NO concentrations were used to classify the parts of the study period into types I (high pollution), II (medium pollution), and III (low pollution)...
March 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28319183/an-integrated-analysis-of-micro-and-macro-habitat-features-as-a-tool-to-detect-weather-driven-constraints-a-case-study-with-cavity-nesters
#6
D Campobello, J Lindström, R Di Maggio, M Sarà
The effects of climate change on animal populations may be shaped by habitat characteristics at both micro- and macro-habitat level, however, empirical studies integrating these two scales of observation are lacking. As analyses of the effects of climate change commonly rely on data from a much larger scale than the microhabitat level organisms are affected at, this mismatch risks hampering progress in developing understanding of the details of the ecological and evolutionary responses of organisms and, ultimately, effective actions to preserve their populations...
2017: PloS One
https://www.readbyqxmd.com/read/28318633/capillary-leak-syndrome-etiologies-pathophysiology-and-management
#7
REVIEW
Eric Siddall, Minesh Khatri, Jai Radhakrishnan
In various human diseases, an increase in capillary permeability to proteins leads to the loss of protein-rich fluid from the intravascular to the interstitial space. Although sepsis is the disease most commonly associated with this phenomenon, many other diseases can lead to a "sepsis-like" syndrome with manifestations of diffuse pitting edema, exudative serous cavity effusions, noncardiogenic pulmonary edema, hypotension, and, in some cases, hypovolemic shock with multiple-organ failure. The term capillary leak syndrome has been used to describe this constellation of disease manifestations associated with an increased capillary permeability to proteins...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28318263/deterministic-coupling-of-quantum-emitters-in-2d-materials-to-plasmonic-nanocavity-arrays
#8
Toan Trong Tran, Danqing Wang, Zaiquan Xu, Ankun Yang, Milos Toth, Teri W Odom, Igor Aharonovich
Quantum emitters in two dimensional materials are promising candidates for studies of light-matter interaction and next generation, integrated on-chip quantum nanophotonics. However, realization of integrated nanophotonic systems requires coupling of emitters to optical cavities and resonators. In this work, we demonstrate hybrid systems in which quantum emitters in 2D hexagonal boron nitride (hBN) are deterministically coupled to high quality plasmonic nanocavity arrays. The plasmonic nanoparticle arrays offer a high quality, low loss cavity in the same spectral range as the quantum emitters in hBN...
March 20, 2017: Nano Letters
https://www.readbyqxmd.com/read/28318147/effects-of-alfapump-system-on-kidney-and-circulatory-function-in-patients-with-cirrhosis-and-refractory-ascites
#9
Elsa Solà, Santiago Sanchez-Cabús, Ezequiel Rodriguez, Chiara Elia, Raquel Cela, Rebeca Moreira, Elisa Pose, Jordi Sánchez-Delgado, Nuria Cañete, Manuel Morales-Ruiz, Francisco Campos, Jaume Balust, Mónica Guevara, Juan Carlos García-Valdecasas, Pere Ginès
The alfapump system has been proposed as a new treatment for the management of refractory ascites. The system removes ascites from the peritoneal cavity to urinary bladder, producing a continuous low-volume paracentesis. AIM: To investigate the effects of treatment with the alfapump system on kidney and circulatory function in patients with cirrhosis and refractory ascites. METHODS: Prospective study including 10 patients with cirrhosis and refractory ascites. Primary outcomes were changes in glomerular filtration rate (GFR), as assessed by isotopic techniques, and changes in circulatory function assessed by arterial pressure, cardiac output and activity of vasoconstrictor systems...
March 20, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28317958/the-collective-behavior-of-spring-like-motifs-tethered-to-a-dna-origami-nanostructure
#10
E-C Schöneweiß, B Saccà
Dynamic DNA nanotechnology relies on the integration of small switchable motifs at suitable positions of DNA nanostructures, thus enabling the manipulation of matter with nanometer spatial accuracy in a trigger-dependent fashion. Typical examples of such motifs are hairpins, whose elongation into duplexes can be used to perform long-range, translational movements. In this work, we used temperature-dependent FRET spectroscopy to determine the thermal stabilities of distinct sets of hairpins integrated into the central seam of a DNA origami structure...
March 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28317908/determination-of-low-loss-in-isotopically-pure-single-crystal-28-si-at-low-temperatures-and-single-microwave-photon-energy
#11
Nikita Kostylev, Maxim Goryachev, Andrey D Bulanov, Vladimir A Gavva, Michael E Tobar
The low dielectric losses of an isotopically pure single crystal (28)Si sample were determined at a temperature of 20 mK and at powers equivalent to that of a single photon. Whispering Gallery Mode (WGM) analysis revealed large Quality Factors of order 2 × 10(6) (dielectric loss ~5 × 10(-7)) at high powers, degrading to 7 × 10(-5) (dielectric loss ~1.4 × 10(-6) at single photon energy. A very low-loss narrow line width paramagnetic spin flip transition was detected with extreme sensitivity in (28)Si, with very small concentration below 10(10) cm(-3) (less than 10 parts per trillion) and g-factor of 1...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317772/ultrasensitive-detection-of-clenbuterol-by-a-covalent-imprinted-polymer-as-a-biomimetic-antibody
#12
Yiwei Tang, Jingwen Gao, Xiuying Liu, Xue Gao, Tao Ma, Xiaonan Lu, Jianrong Li
As an ideal biomimetic antibody, molecularly imprinted polymer (MIP) has shown great promise in immunoassays. Here, we developed a covalent imprinting method to prepare MIP artificial antibody towards clenbuterol on the well surface of a microtiter plate. Template molecule (clenbuterol) was splited by hydrolysis with functional monomer and removed by methanol/acetic acid solution, and then three-dimensional cavities were fabricated in the MIP, which can rebind template molecule via hydrogen bond interaction...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28317682/intraocular-lens-scaffold-technique-to-prevent-posterior-capsule-rupture-in%C3%A2-cases%C3%A2-of-morgagnian-cataract
#13
Rohit Om Parkash, Shruti Mahajan, Tushya Om Parkash, Vittal Nayak
We describe a technique for performing safe phacoemulsification of a Morgagnian cataract using the intraocular lens (IOL) scaffold. An IOL scaffold has been used in cases in which posterior capsule rupture has occurred, leaving nonemulsified nuclear pieces. The scaffold provides a barrier that prevents the nuclear fragments from falling posteriorly into the vitreous cavity. Our technique uses the IOL as a scaffold to prevent the vulnerable posterior capsule from rupturing during nuclear emulsification in Morgagnian cataract...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28317574/role-of-oral-microbial-infections-in-oral-cancer
#14
REVIEW
Brett L Ferguson, Scott Barber, Imani H Asher, Chalmers R Wood
The role of bacterial and viral carcinogenesis in the oral cavity is increasingly of interest, as a means to provide more methods of cancer prevention. There may be relationships between bacteria and multiple strains of viruses in the progression of malignancy. Cancer cause is closely related to the type of carcinogen, as well as the synergistic or additive actions of combined risk factors, the susceptibility of the host, and duration of interaction between host and exposure to risk factor. Much research is underway to further define the role of microbial and bacterial agents in the progression of malignancy...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317570/oral-viral-infections-diagnosis-and-management
#15
REVIEW
Earl Clarkson, Fatima Mashkoor, Saif Abdulateef
This article focuses on common viral infections in the oral cavity with associated systemic manifestations. Discussed are the clinical features, histopathology, diagnosis, treatment, and prevention of viral infections in oral cavity. This will be a useful aid for general practitioners and other dental personnel wanting to expand their pathologic knowledge. This article discusses herpes simplex, varicella zoster, mononucleosis, cytomegalovirus, enteroviruses, rubeola, rubella, mumps, and human papillomavirus...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317569/oral-fungal-infections-diagnosis-and-management
#16
REVIEW
David R Telles, Niraj Karki, Michael W Marshall
Oral and maxillofacial fungal infections can appear in high-risk patients, including those immunocompromised. This article explores common oral manifestations of fungal infections in the oral cavity as primary lesions or as a result of disseminated disease. By far the most common oral fungal infection experienced in dentistry is oral candidiasis, which is reviewed in depth from simple oral infections to invasive candidiasis. The review aids the dental practitioner in understanding the full scope of Candida infections and other fungal infections...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317568/oral-bacterial-infections-diagnosis-and-management
#17
REVIEW
Glendee Reynolds-Campbell, Alison Nicholson, Camille-Ann Thoms-Rodriguez
The human oral cavity contains more than 500 different bacterial species. These organisms belong to several phyla including Bacteroidetes, Firmicutes, Tenericutes, Actinobacteria, Proteobacteria, Euryarchaeota, Chlamydiae, and Spirochaetes. Many of these have the ability to colonize the gingival crevices and the outer surface of the tooth forming biofilms often leading to dental plaque formation. These bacteria produce acid that erode teeth causing cavities or infections. The diagnosis of these infections is often clinical and antibiotics are used empirically to treat some infections or as prophylaxis...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317562/normal-oral-flora-and-the-oral-ecosystem
#18
REVIEW
Lakshman Samaranayake, Victor H Matsubara
The oral ecosystem comprises the oral flora, so-called oral microbiome, the different anatomic microniches of the oral cavity, and its bathing fluid, saliva. The oral microbiome comprises a group of organisms and includes bacteria, archaea, fungi, protozoa, and viruses. The oral microbiome exists suspended in saliva as planktonic phase organisms or attached to oral surfaces as a plaque biofilm. Homeostasis of the plaque biofilm and its symbiotic relationship with the host is critical for oral health. Disequilibrium or dysbiosis within the plaque biofilms is the initiating event that leads to major oral diseases, such as caries and periodontal disease...
April 2017: Dental Clinics of North America
https://www.readbyqxmd.com/read/28317372/a-pillararene-based-aie-active-supramolecular-system-for-simultaneous-detection-and-removal-of-mercury-ii-in-water
#19
Hong-Bo Cheng, Ziyan Li, Yao-Dong Huang, Lei Liu, Hai-Chen Wu
Supramolecular polymers are polymers based on monomeric units held together with directional and reversible noncovalent interactions. Compared with traditional polymers, they possess better processability and better recycling properties, owing to their reversible monomer-to-polymer transition. Herein, we report the construction of a new supramolecular system through self assembly of a thymine-substituted copillar[5]arene 1 and a tetraphenylethylene (TPE) derivative 2 in the presence of Hg2+. Copillar[5]arene 1 can coordinate with Hg2+ tightly through T-Hg2+-T pairings...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28317181/cyclic-bisporphyrin-based-flexible-molecular-containers-controlling-guest-arrangements-and-supramolecular-catalysis-by-tuning-cavity-size
#20
Sankar Prasad Rath, Pritam Mondal, Sabyasachi Sarkar
Three cyclic zinc(II) bisporphyrins (CB) with highly flexible linkers are employed as artificial molecular containers that efficiently encapsulate/coordinate various aromatic aldehydes within their cavities. Interestingly, the arrangements of the guests and their reactivity inside the molecular clefts are significantly influenced by the cavity size. In presence of polycyclic aromatic aldehydes such as 3-formylperylene as a guest, the cyclic bisporphyrin host having smaller cavity (CB1) forms 1:1 sandwich complex...
March 20, 2017: Chemistry: a European Journal
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