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03:16 EDT 24th September 2018 | BioPortfolio

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Showing "Relay Life something everybody Norwalk Reflector" PubMed Articles 1–25 of 9,200+

UAV Based Relay for Wireless Sensor Networks in 5G Systems.

Relay is one of the most significant issues in smart industrial wireless sensor networks (WSN) due to the low transmitting power of sensors. By relay, the signals of sensors can be concentrated at the relay and further transmitted to the base station for decreasing energy consumption in the system. In the past decades, the relay in WSN is generally one super sensor with large transmitting power. However, the placement of the super sensor is static, which leads to the instability of performance in WSN under ...

A quinoline-based fluorescence "on-off-on" probe for relay identification of Cu and Cd ions.

A novel fluorescent probe based 8-hydroxyquinoline (8-HQ) has been designed and synthesized. The probe 1 exhibits fast relay recognition performance for Cu and Cd via a fluorescence "on-off-on" response signal. The probe 1 itself has a strong emission peak at 471 nm in EtOH/HO (v/v = 1:9) solution with a blue fluorescence. The addition of Cu immediately results in the quenching of fluorescence and the limit of detection is 2.7 × 10 M. Moreover, the formation of [1-Cu] complexes can also serve a...

Diastereo- and Enantioselective Formal 3+2 Cycloaddition of Cyclopropyl Ketones and Alkenes via Ti-catalyzed Radical Redox Relay.

We report a stereoselective [3+2] cycloaddition of cyclopropyl ketones and radical-acceptor alkenes to form polysubstituted cyclopentane derivatives. Catalyzed by a chiral Ti(salen) complex, the cycloaddition occurs via a radical redox-relay mechanism and constructs two C-C bonds and two contiguous stereogenic centers with generally excellent diastereo- and enantioselectivity.

Direct Conversion of Syngas into Methyl Acetate, Ethanol and Ethylene by Relay Catalysis via Dimethyl Ether Intermediate.

Selective conversion of syngas (CO/H2) into C2+ oxygenates is a highly attractive but challenging target. Here, we report the direct conversion of syngas into methyl acetate (MA) by relay catalysis. MA can not only be formed at a lower temperature (~473 K) using Cu-Zn-Al oxide/H-ZSM-5 and zeolite mordenite (H-MOR) catalysts separated by quartz wool (denoted as Cu-Zn-Al/H-ZSM-5│H-MOR) but also at higher temperatures (603-643 K) without significant deactivation using spinel-structured ZnAl2O4│H-MOR. The s...

Distribution and Establishment of the Lone Star Tick in Connecticut and Implications for Range Expansion and Public Health.

In the United States, the lone star tick, Amblyomma americanum (L.) (Acari: Ixodidae), is an aggressive southeastern species whose range has reportedly been steadily expanding northward. The number of A. americanum specimens submitted to the Tick Testing Laboratory (TTL) at the Connecticut Agricultural Experiment Station (CAES) increased by 58% from the period of 1996-2006 (n = 488) to 2007-2017 (n = 773), mainly from Fairfield County in the southwestern corner of the state. The greatest numbers of A. ameri...

High salinity relay as a post-harvest processing method for reducing Vibrio vulnificus levels in oysters (Crassostrea virginica).

High salinity relay of Eastern oysters (Crassostrea virginica) was evaluated as a post-harvest processing (PHP) method for reducing Vibrio vulnificus. This approach relies on the exposure of oysters to natural high salinity waters and preserves a live product compared to previously approved PHPs. Although results of prior studies evaluating high salinity relay as a means to decrease V. vulnificus levels were promising, validation of this method as a PHP following approved guidelines is required. This study ...

Highly sensitive quasi-distributed fiber-optic acoustic sensing system by interrogating a weak reflector array.

In this Letter, we demonstrate a highly sensitive quasi-distributed fiber-optic acoustic sensing system. This system interrogates a weak reflector array by using phase-sensitive optical time domain reflectometry with coherent detection. A phase-noise-compensated configuration is proposed to reduce the influence of 1/f noise, which is the main limitation when coherent detection is used in this high-sensitivity system. In the experiment to simulate the scenario with a link loss of 20 km fiber and 10 m array...

GeSn resonant-cavity-enhanced photodetectors on silicon-on-insulator platforms.

We report GeSn p-i-n resonant-cavity-enhanced photodetectors (RCEPDs) grown on silicon-on-insulator substrates. A vertical cavity, composed of a buried oxide as the bottom reflector and a deposited SiOlayer on the top surface as the top reflector, is created for the GeSn p-i-n structure to enhance the light-matter interaction. The responsivity experiments demonstrate that the photodetection range is extended to 1820 nm, completely covering all the telecommunication bands, because of the introduction of 2.5...

Priority Queue Based Reactive Buffer Management Policy for Delay Tolerant Network under City Based Environments.

Delay Tolerant Network (DTN) multi-copy routing protocols are privileged to create and transmit multiple copies of each message that causes congestion and some messages are dropped. This process is known as reactive drop because messages were dropped re-actively to overcome buffer overflows. The existing reactive buffer management policies apply a single metric to drop source, relay and destine messages. Hereby, selection to drop a message is dubious because each message as source, relay or destine may have...

Varying Success of Relaying To Reduce Vibrio parahaemolyticus Levels in Oysters ( Crassostrea virginica).

Vibrio parahaemolyticus is the leading cause of seafood-borne human infections in the United States, and many of these illnesses are associated with consumption of raw molluscan shellfish. V. parahaemolyticus levels in shellfish vary temporally and spatially with environmental conditions in and around production areas. The objective of this study was to study the potential for reducing levels of V. parahaemolyticus in live oysters by relaying them during higher-risk warm weather to a site with elevated sali...

Reactivation of Dormant Relay Pathways in Injured Spinal Cord by KCC2 Manipulations.

Exact and heuristic algorithms for Space Information Flow.

Space Information Flow (SIF) is a new promising research area that studies network coding in geometric space, such as Euclidean space. The design of algorithms that compute the optimal SIF solutions remains one of the key open problems in SIF. This work proposes the first exact SIF algorithm and a heuristic SIF algorithm that compute min-cost multicast network coding for N (N ≥ 3) given terminal nodes in 2-D Euclidean space. Furthermore, we find that the Butterfly network in Euclidean space is the second ...

A New Measure of Life Satisfaction: The Riverside Life Satisfaction Scale.

The Satisfaction With Life Scale (Diener, Emmons, Larsen, & Griffin, 1985) has been the dominant measure of life satisfaction since its creation more than 30 years ago. We sought to develop an improved measure that includes indirect indicators of life satisfaction (e.g., wishing to change one's life) to increase the bandwidth of the measure and account for acquiescence bias. In 3 studies, we developed a 6-item measure of life satisfaction, the Riverside Life Satisfaction Scale, and obtained reliability and...

Perhaps quality of life should not be used as a trigger for discussing resuscitation and advance care plans.

As a subjective measure, quality of life should not be used as a trigger for discussing resuscitation, goals of care or advanced care plans. Limitations and challenges in measurement and assessment of quality of life have been recognised. It is a fluid construct and subject to changes and response shifts. Surrogate quality of life estimations may misrepresent individual worth and self-perceived quality of life. Disagreement over quality of life statements may cause harm.

An Interactive Real-Time Locating System Based on Bluetooth Low-Energy Beacon Network .

The ubiquity of Bluetooth-enabled smartphones and peripherals has brought tremendous convenience to our daily life. In recent years, Bluetooth beacons have also been gaining popularity in implementing a variety of innovative location-based services such as self-guided systems in exhibition centers. However, the broadcast-based beacon technology can only provide unidirectional communication. In case smartphone users would like to respond to the beacon messages, they have to rely on their own mobile Internet ...

Endovascular repair of a penetrating aortic ulcer with a custom-made Relay stent-graft featuring a single celiac trunk fenestration and a superior mesenteric artery scallop.

We report the case of a 70-year-old man with an asymptomatic, fast-growing, paraceliac penetrating aortic ulcer (PAU). Guidelines recommend endovascular repair if an asymptomatic PAU shows a mean growth rate ≥5 mm per year: this patient's maximum aortic diameter was 47 mm but had increased 10 mm in the previous year. The very short sealing zones required a custom-made stent-graft. A custom-made Relay stent-graft with a single celiac trunk fenestration, a superior mesenteric artery (SMA) scallop measured a...

"It was the best worst day of my life": Narrative Content, Structure, and Process in Wisdom-Fostering Life Event Memories.

The purpose of this study was to examine laypeople's subjective understanding of their own wisdom development. To do this, autobiographical memories of wisdom-fostering life events were examined for (a) life-event characteristics, and (b) self-reflective processes believed to support growth in wisdom through life experience.

Life-threatening or Nearly Life-threatening complications in Living Liver Donors.

To determine the relationship between a transplant center's experience and life-threatening or nearly life-threatening complications during living donor hepatectomy (LDH).

Extracellular vesicles direct migration by synthesizing and releasing chemotactic signals.

Chemotactic signals are relayed to neighboring cells through the secretion of additional chemoattractants. We previously showed in that the adenylyl cyclase A, which synthesizes the chemoattractant cyclic adenosine monophosphate (cAMP), is present in the intraluminal vesicles of multivesicular bodies (MVBs) that coalesce at the back of cells. Using ultrastructural reconstructions, we now show that ACA-containing MVBs release their contents to attract neighboring cells. We show that the released vesicles ar...

Use of Oxygen at the End of Life: Attitudes, Beliefs, and Practices in Wisconsin.

Oxygen therapy for the management of breathlessness remains controversial and little information is available regarding the practice of using oxygen at end of life. Oxygen use in end-of-life care is increasingly being questioned, while the use of oxygen for routine "comfort care" at end of life continues.

Does Aortic Valve Replacement Surgery Improve Patients' Quality of Life?

Aortic valve replacement surgery is done to increase patients' life expectancy and improve their health-related quality of life. Several published studies have found improvement in health-related quality of life after this procedure, but none have involved patients in Portugal. This study sought to evaluate patients' health-related quality of life after the implantation of aortic prostheses and compare these values with preoperative health-related quality of life and the general Portuguese population's heal...

Assessing health-related quality of life in patients with breast cancer: a reply to Ribi et al.

Firing-rate based network modeling of the dLGN circuit: Effects of cortical feedback on spatiotemporal response properties of relay cells.

Visually evoked signals in the retina pass through the dorsal geniculate nucleus (dLGN) on the way to the visual cortex. This is however not a simple feedforward flow of information: there is a significant feedback from cortical cells back to both relay cells and interneurons in the dLGN. Despite four decades of experimental and theoretical studies, the functional role of this feedback is still debated. Here we use a firing-rate model, the extended difference-of-Gaussians (eDOG) model, to explore cortical f...

My partner's stories: relationships between personal and vicarious life stories within romantic couples.

In this paper, we examined relationships and differences between personal and vicarious life stories, i.e., the life stories one knows of others. Personal and vicarious life stories of both members of 51 young couples (102 participants), based on McAdams' Life Story Interview (2008), were collected. We found significant positive relationships between participants' personal and vicarious life stories on agency and communion themes and redemption sequences. We also found significant positive relationships bet...

Bringing Nanotubes into Line.

Science is ART! The recently published alignment relay technique (ART) is summarized. The new method for two-dimensional liquid crystal imprinting allows for the alignment of molecules and materials on oxide surfaces.

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