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Search Results: 1 - 10 of 6466 matches for " Jeffrey Skeer "
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Potential for Biomass and Biofuel through Sustainable Intensification of Agriculture and Reduction of Food Losses and Waste  [PDF]
Jeffrey Skeer, Shunichi Nakada
Natural Resources (NR) , 2016, DOI: 10.4236/nr.2016.71002
Abstract: Substantial potential exists to expand supplies of biomass for energy applications through more systematic collection of agricultural residues, more intensive cultivation of croplands, and reduced waste and losses in the food chain. This study aims to show how the potential can be calculated from public information sources, to put the potential in the context of global needs for liquid transport fuels, and to suggest some practical policy options for bringing part of the potential to market. It finds that if the theoretical potential is fully realized, enough liquid biofuel could be produced to displace the equivalent of all current global liquid fuel use for transport.
Pretense Theory and the Imported Background  [PDF]
Jeffrey Goodman
Open Journal of Philosophy (OJPP) , 2011, DOI: 10.4236/ojpp.2011.11004
Abstract: Kendall Walton’s pretense theory, like its rivals, says that what’s true in a fiction F depends in part on the importation of background propositions into F. The aim of this paper is to present, explain, and defend a brief yet straightforward argument–one which exploits the specific mechanism by which the pretense theory says propositions are imported into fictions–for the falsity of the pretense theory.
Analysis on Double Loop Wireless Power Transfer  [PDF]
Jeffrey Wu
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2017, DOI: 10.4236/jemaa.2017.96008
Abstract: This paper examines the properties of the double loop wireless power transmitter using numerical simulations. The double loop wireless power transmitter consists of two coupling and parallel loop antennas which transmit field energy through resonant electromagnetic waves. This tech-nology can be applied in RFIDs (Radio Frequency Identification) and re-mote charging scenarios where wires cannot be applied to, including the wireless charging of drones and satellites.
Cavernous Hemangioma of the Nasal Cavity  [PDF]
Peter Kalina, Jeffrey Rykken
Open Journal of Medical Imaging (OJMI) , 2011, DOI: 10.4236/ojmi.2011.12007
Abstract: A 22 year old six month pregnant female presented with right eye tearing, proptosis and nasal congestion. CT revealed a large right nasal cavity mass with involvement of the ethmoids, right maxillary sinus, lamina papyracea, cribriform plate and nasal septum. There was significant remodeling of the right cribriform plate with mild extra-axial intracranial and mild intraorbital extension. Transnasal endoscopic excision confirming the diagnosis of cavernous hemangioma of the nasal cavity. Hemangiomas are benign slow-growing vascular neoplasms classified as capillary, cavernous or mixed. Hemangiomas of the nasal cavity and paranasal sinuses are very rare with only a few reported cases. The occurrence and growth of these lesions during pregnancy may be related to increased blood volume or hormonal factors. The most common therapeutic option is complete surgical resection via transnasal endoscopic approach. Pre-operative embolization may be utilized in some cases to decrease the risk of intraoperative bleeding.
System-on-a-Chip (SoC) Based Hardware Acceleration for Video Codec  [PDF]
Xinwei Niu, Jeffrey Fan
Optics and Photonics Journal (OPJ) , 2013, DOI: 10.4236/opj.2013.32B028
Abstract:

Nowadays, from home monitoring to large airport security, a lot of digital video surveillance systems have been used. Digital surveillance system usually requires streaming video processing abilities. As an advanced video coding method, H.264 is introduced to reduce the large video data dramatically (usually by 70X or more). However, computational overhead occurs when coding and decoding H.264 video. In this paper, a System-on-a-Chip (SoC) based hardware acceleration solution for video codec is proposed, which can also be used for other software applications. The characteristics of the video codec are analyzed by using the profiling tool. The Hadamard function, which is the bottleneck of H.264, is identified not only by execution time but also another two attributes, such as cycle per loop and loop round. The Co-processor approach is applied to accelerate the Hadamard function by transforming it to hardware. Performance improvement, resource costs and energy consumption are compared and analyzed. Experimental results indicate that 76.5% energy deduction and 8.09X speedup can be reached after balancing these three key factors.

System Verification of Hardware Optimization Based on Edge Detection  [PDF]
Xinwei Niu, Jeffrey Fan
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.43040
Abstract: Nowadays, digital camera based remote controllers are widely used in people’s daily lives. It is known that the edge detection process plays an essential role in remote controlled applications. In this paper, a system verification platform of hardware optimization based on the edge detection is proposed. The Field-Programmable Gate Array (FPGA) validation is an important step in the Integrated Circuit (IC) design workflow. The Sobel edge detection algorithm is chosen and optimized through the FPGA verification platform. Hardware optimization techniques are used to create a high performance, low cost design. The Sobel edge detection operator is designed and mounted through the system Advanced High-performance Bus (AHB). Different FPGA boards are used for evaluation purposes. It is proved that with the proposed hardware optimization method, the hardware design of the Sobel edge detection operator can save 6% of on-chip resources for the Sobel core calculation and 42% for the whole frame calculation.
Improving Model Specifications When Estimating Treatment Effects across Alternative Medical Interventions  [PDF]
Yawen Jiang, Jeffrey McCombs
Open Journal of Statistics (OJS) , 2014, DOI: 10.4236/ojs.2014.410081
Abstract: Objective: The purpose of this paper is to critique the list of independent variables commonly used in observational research and test the impact of variables for prior use and treatment history on estimates of treatment effects. Methods: Using data from the California Medicaid program, this study generated a series of OLS estimates of the effect of atypical antipsychotic medications on costs and duration of therapy to illustrate the impact of alternative model specifications on treatment effects. The first sequence of estimates consisted of six model specifications, the last of which included variables reflecting the type of episode defined according to prior treatment history and compliance. The second sequences repeated the specification of the first 6 models but were carried out separately by episode type to examine the heterogeneity of treatment effect. The second sequence of models documented the impact of additional drug history variables. Results: Estimates of the impact of atypical antipsychotic use on total costs and duration on initial drug were statistically significant in the first 6 models. Estimates changed significantly when dummy variables indicating prior use of inpatient service and nursing home care were included in the model specification. Estimated effects changed substantially when prior total cost was included in cost analysis, or when prior treatment duration was included in duration analysis. Significant variation also existed in estimated effects across episode types, and it was particularly pronounced before controlling for prior cost/duration. Conclusion: It is important to add prior measures of the outcome variable to control for unobserved bias in retrospective studies. Also, the accuracy and utility of results to clinicians can be improved significantly if analyses are performed by episode type.
Effects of Short Term Administration of Genistein on Hypothalamic and Anterior Pituitary Hormones in Ovariectomized Gilts  [PDF]
Jeffrey Clapper, Carolyn Paulson
Open Journal of Animal Sciences (OJAS) , 2015, DOI: 10.4236/ojas.2015.52019
Abstract: Administration of genistein to barrows increased anterior pituitary (AP) concentrations of IGF-I and LH and increased expression of AP IGF receptor. Whether similar changes occur in gilts remains to be determined. The objective of this experiment was to determine if short term administration of genistein increased expression of components of the AP IGF system and hypothalamic hormones and receptors involved in gonadotropin synthesis and/or release in the gilt. Sixteen crossbred gilts of similar weight (97.7 kg) were ovariectomized and assigned to either control (C; n = 8) or genistein (G; n = 8) groups. Genistein pigs received 800 mg of genistein in DMSO while C pigs received an equal volume of DMSO i.m. on day 0, 1, 2, and 3. Blood samples were obtained on day 0, 1, 2, and 3. Pigs were slaughtered on d 4 when blood, AP, and medial basal hypothalami (MBH) were collected. No difference was detected (P > 0.05) in AP concentrations of IGF-I or serum concentrations of IGF-I in C and G pigs. Anterior pituitary concentrations of LH were greater (P < 0.05) in G pigs compared with C pigs. Relative expression of AP IGF-I was greater (P < 0.05) in G pigs than C pigs. Relative expression of AP IGF-IR, IGFBP-2 and IGFBP-3 did not differ (P > 0.05) in C and G pigs. Relative expression of AP IGFBP-5 and GnRHR was increased (P < 0.05) in G pigs compared with C pigs. Relative expression of AP LHβ did not differ between C and G pigs. Relative expression of MBH kisspeptin was greater (P < 0.01) in G pigs than C pigs. These data provided evidence that short term administration of genistein increased expression of hypothalamic and hypophyseal hormones in gilts which could influence subsequent reproduction.
RETRACTED: Pros and Cons of General Anaesthesia on Total Knee Angioplasty (TKA) and Total Hip Angioplasty (THA)  [PDF]
Jeffrey Y. Tsai
Open Journal of Orthopedics (OJO) , 2015, DOI: 10.4236/ojo.2015.54009
Abstract:

Short Retraction Notice

The paper does not meet the standards of \"Open Journal of Orthopedics\".

This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused.

Editor guiding this retraction: Dr. Samer El Hage (EB of OJO)

The full retraction notice in PDF is preceding the original paper, which is marked \"RETRACTED\".

US State Economic Freedom and the Labor Supply of Young Workers  [PDF]
Jeffrey J. Yankow
Modern Economy (ME) , 2016, DOI: 10.4236/me.2016.77084
Abstract: Matching panel data drawn from the National Longitudinal Survey of Youth 1979 to the state-level index of economic freedom published in Economic Freedom of North America 2010, this study examines the empirical relationship between the degree of economic freedom in US states and individual labor supply. OLS estimation identifies a positive correlation between economic freedom and annual hours worked. However, this relationship disappears when the model accounts for time-invariant person-specific fixed effects. Although states with higher degrees of economic freedom appear to generate higher productivity and therefore labor earnings potential among workers, most workers do not increase their hours of work in response.
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