MRJ Consulting (United States)

Objective: To evaluate changes in superficial temperature of hindlimb muscles before and after a 6-min walk in healthy dogs.Methods: Two infrared thermographic images were captured of the proximal and distal hindlimbs of 11 healthy dogs before and after a 6-min walk. Orthopedic exam and objective gait analysis confirmed the healthy status of study subjects. Superficial temperatures of the gastrocnemius, biceps femoris, and gracilis were assessed. Analysis of images was performed using 2 different methods of region of interest (ROI) selection. ROI were selected first using one point (single pixel) in the muscle and then separately by selecting a line (LN) corresponding to many points of each muscle belly from which an average was taken. P < 0.05 was considered significant.Results: There was no significant change in temperature using point ROI before and after 6 min of walking of the gastrocnemius, gracilis, and biceps femoris muscles (p = 0.273, p = 0.349, p = 0.351, respectively). Using linear ROI, both biceps femoris and gracilis muscles exhibited significant increases in temperature (p < 0.0001, p = 0.032, respectively). There was no significant increase in temperature of gastrocnemius muscle for both point and linear ROI selection (p = 0.273, p = 0.448, respectively). The right biceps femoris temperatures were higher compared to left biceps femoris using the linear ROI before and after walks (p < 0.0001). The overall (left and right limbs pooled) standard deviation of point selected values were greater than LN selected values of the biceps femoris (1.35 and 1.11) and gastrocnemius (1.51 and 1.23). In contrast, standard deviation for the gracilis measurements were decreased using point selection vs. LN selection (1.09 and 1.3).Conclusions: The biceps femoris and gracilis muscles demonstrated significant increases in surface temperature after 6 min of walking using the linear method of ROI. Measurement of numerous points along the entire length of the biceps femoris and gastrocnemius muscles may provide a more accurate assessment of the increased vascularity within the tissues resulting from work compared to single point selection.Clinical Significance: Prior activity and ROI selection method should be considered when interpreting thermography results.

BackgroundEndoluminal tracheal stenting can relieve signs associated with tracheal collapse syndrome (TCS) in dogs, but major complications can result.ObjectiveTo identify associations among tracheal dimensions, stent dimensions, and subsequent complications requiring additional stent placement after endoluminal stenting for TCS.AnimalsFifty‐two dogs from the hospital population.MethodsMedical records of dogs that received an endoluminal self‐expanding tracheal stent for TCS by the interventional radiology service between 2009 and 2014 were reviewed for relevant data. Signalment and clinical details, including tracheal collapse type, tracheal measurements, nominal stent dimensions, follow‐up evaluation times, and stent complications, were recorded.ResultsFifty‐two dogs that received an endoluminal stent for TCS met the inclusion criteria. Major complications included stent fracture (13/52; 25%), obstructive tissue ingrowth (10/52; 19%), and progressive tracheal collapse (6/52; 12%). Natural tracheal taper (P = .04) and more stent diameter oversizing (P = .04) in the intrathoracic (IT) trachea were associated with caudodorsal stent fracture. Only stents with a 14‐mm nominal diameter fractured. Progressive tracheal collapse was associated with smaller maximum tracheal diameters (P = .02). The majority of dogs with obstructive tissue ingrowth (7/10; 70%; P = .30) and all dogs with thoracic inlet fractures (3/3; 100%) had tracheal malformations.Conclusions and Clinical ImportanceA higher taper in tracheal diameter may lead to increased risk of fracture in the IT location. Dogs with tracheal malformations may have higher risk for thoracic inlet fracture and development of obstructive tissue ingrowth. Clinicians should be aware of the possible risk factors for tracheal stent complications.

BackgroundNovel feline RBC antigens might contribute to decreased efficacy of RBC transfusion and increased incidence of acute transfusion reactions (ATR).ObjectivesTo examine the effect of major cross‐match in transfusion‐naïve anemic cats on the incidence of acute immunologic transfusion reaction and transfusion efficacy for up to 24 hours after transfusion.AnimalsForty‐eight client owned transfusion‐naïve anemic cats.MethodsProspective, randomized, controlled study. All transfusion‐naïve cats receiving packed red blood cells (pRBC) transfusions from January 2016 to August 2017 were eligible for inclusion. Cats in the study group received cross‐match and blood type compatible pRBCs and cats in the control group received noncross‐matched blood type compatible pRBCs. Incidence of ATR and change in PCV after transfusion was recorded.ResultsNo significant difference in incidence of transfusion reactions between cross‐matched and noncross‐matched groups (CM+ 4/24; 17%, CM– 7/24; 29%, P = .16). No significant difference between groups in mean change in PCV after transfusion scaled to dose of pRBCs administered at any time point after transfusion (immediate: CM+ 0.62 ± 0.59, CM– 0.75 ± 0.48, P = .41; 1 hour: CM+ 0.60 ± 0.66, CM– 0.74 ± 0.53, P = .43; 12 hours: CM+ 0.70 ± 0.55, CM– 0.66 ± 0.60, P = .81; 24 hours: CM+ 0.64 ± 0.71, CM– 0.55 ± 0.48, P = .70).Conclusions and Clinical ImportanceOur results do not support use of the major cross‐match test to increase efficacy of, and to decrease adverse events associated with, RBC transfusion in AB blood typed transfusion‐naïve cats.

ABSTRACTTo date, little is known about psychosocial and behavioral effects of marijuana (MJ) use among youths in substance abuse disorder (SUD) treatment. We recruited 80 youths (Mage = 20.4 ± 3.5 years old) to participate in an aftercare pilot program from SUD treatment programs in Southern California. This article explores differences in psychosocial and behavioral treatment outcomes between youths in SUD treatment for MJ compared to youths in treatment for another primary substance other than MJ (i.e., stimulants, opioids, alcohol). Youths in SUD treatment for MJ reported being less likely to quit, continued MJ use at treatment completion, less substance use severity, less psychosocial distress, and fewer criminal behaviors compared to youths who received treatment for substances other than MJ. There were differences in HIV-risk outcomes in the past year; however, both groups reported risky sexual behavior in the past month at treatment discharge.

The concept of using Scanning Electron Microscopy and Die-to-Database techniques to rigorously inspect advanced lithography products such as X-ray Lithography, Imprint, and Stencil masks as well as other Next Generation Lithography (NGL) is compelling. Current optical capabilities reach down to 0.2μm and do so by interpolating pixilated optical data. Applications at 4x magnifications, such as Chrome on Glass or Phase Shift Photomasks mesh with this resolution of inspection and have been able to migrate down the lithography nodes hand in hand. As the demands for resolution progress, optical lithography has been increasing the requirements upon inspection systems presently available through the addition of assist features and serifs, which are difficult to directly verify. These assist features are effectively approaching 1x dimensions. A printed feature that is slightly out-of-tolerance for CD, shape, or position relative to other structures, may still yield acceptable performance. This added resolution challenge of working closer to a 1x Magnification with ever decreasing structure sizes is easily achieved with Scanning Electron Microscope technology. The Die-to-Database inspection technique utilizes the CAD image, which defines the designer's original intended structure, as the reference image. In this paper, we will introduce a revolutionary approach for utilizing the full potential of Scanning Electron Microscope images for inspection purposes. The technique incorporates an aggressive but reliable interpretation of the image data to recreate GDS data files which can then be validated against the desired GDS data for hard defects, abbreviated / missing features, and even shifts or placement errors.

Consumer products have at their core several features that are crucial to their success. First they are designed to deliver an easily understood application - both the salesperson and the customer can quickly grasp what the product does and why someone might want it. Second, they are readily available - you can find them at all major retail outlets. Third they provide instant gratification typically within minutes of opening the box, they are doing at least some of the things they were bought to do. And last, the instructions are simple to understand when, as a last resort, the consumer reads them to find out what else they can do with it.

An overview of home networks, as defined by the Home Networking and IT (HNIT) Division of the Consumer Electronics Association (CEA), is presented in this paper. HNIT's membership includes consumer electronics executives, marketing and market research professionals, engineers, and standards developers, which provide a broad perspective on this subject. The article first introduces the rational behind the definition. From that baseline, it moves on to review some of the most critical issues home networks must address so as to meet the expectations of content and service providers-and ultimately those of the consumer. With that foundation, the article provides an overview of each of the major home networking protocols and standards, as well as their respective strengths and weaknesses. Also included is a discussion of the interrelationships between the major standards and industry specifications: in other words, how they will work together to create a seamless home network environment.

Wide stripe semiconductor lasers can be used as optical power amplifiers for obtaining high power single spatial mode output beams. Anti-reflection coatings deposited on the facets of semiconductor lasers effectively suppress any self-oscillation. The input beam from a single spatial mode, low power master oscillator was injected into a laser diode amplifier using microscope objectives and cylindrical lenses. Our system produced up to 300 mW of continuous wave output power with good preservation of the master oscillator beam quality after transmission through the power amplifier.