keyword
MENU ▼
Read by QxMD icon Read
search

Margins

keyword
https://www.readbyqxmd.com/read/28092750/assessing-common-birds-ecological-requirements-to-address-nature-conservation-in-permanent-crops-lessons-from-italian-vineyards
#1
Giacomo Assandri, Giuseppe Bogliani, Paolo Pedrini, Mattia Brambilla
Viticulture has contributed to shaping cultural landscapes in several regions across all continents. Recent farming intensification is causing landscape homogenization and biodiversity loss in several of those areas, but knowledge about the impacts on biodiversity in vineyards is still scarce. Simplified agro-ecosystems resulting from intensification host mainly generalist and common species, which still play a key role in the regulation of ecosystems and in the provision of ecosystem services. We assessed the abundance of 11 common bird species at 47 linear transects in a vineyard-dominated landscape in Trentino (NE Italy), in both spring and winter, and analysed abundance variation in relation to three independent groups of predictors: landscape, management, and topographic-climatic variables...
January 13, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28092599/wild-boars-sus-scrofa-as-bioindicators-of-environmental-levels-of-selenium-in-poland
#2
E Nowakowska, B Pilarczyk, R Pilarczyk, A Tomza-Marciniak, M Bąkowska, A Marciniak
The objective of the study was to determine selenium content in selected organs (liver, kidney) of wild boars from different regions of Poland. Materials for the study were obtained from 28 sites located in 16 provinces of Poland. Selenium concentrations in organs were determined using spectrofluorometric methods after wet mineralization in HNO3 and HClO4 mixture. Mean selenium concentrations in the investigated wild boars from Poland were 0.230 μg/g wet weight in the liver and 1.327 μg/g w.w. in the kidneys...
December 1, 2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28092552/discriminative-elastic-net-regularized-linear-regression
#3
Zheng Zhang, Zhihui Lai, Yong Xu, Ling Shao, Jian Wu, Guo-Sen Xie
In this paper, we aim at learning compact and discriminative linear regression models. Linear regression has been widely used in different problems. However, most of the existing linear regression methods exploit the conventional zeroone matrix as the regression targets, which greatly narrows the flexibility of the regression model. Another major limitation of theses methods is that the learned projection matrix fails to precisely project the image features to the target space due to their weak discriminative capability...
January 11, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28092544/discriminative-multi-view-interactive-image-re-ranking
#4
Jun Li, Chang Xu, Wankou Yang, Changyin Sun, Dacheng Tao
-Given unreliable visual patterns and insufficient query information, content-based image retrieval (CBIR) is often suboptimal and requires image re-ranking using auxiliary information. In this paper, we propose Discriminative Multi-view INTeractive Image Re-ranking (DMINTIR), which integrates User Relevance Feedback (URF) capturing users' intentions and multiple features that sufficiently describe the images. In DMINTIR, heterogeneous property features are incorporated in the multi-view learning scheme to exploit their complementarities...
January 10, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28092529/sub-category-classifiers-for-multiple-instance-learning-and-its-application-to-retinal-nerve-fiber-layer-visibility-classification
#5
Siyamalan Manivannan, Caroline Cobb, Stephen Burgess, Emanuele Trucco
We propose a novel multiple instance learning method to assess the visibility (visible/not visible) of the retinal nerve fiber layer (RNFL) in fundus camera images. Using only image-level labels, our approach learns to classify the images as well as to localize the RNFL visible regions. We transform the original feature space to a discriminative subspace, and learn a region-level classifier in that subspace. We propose a margin-based loss function to jointly learn this subspace and the region-level classifier...
January 16, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28092523/longitudinal-study-of-automatic-face-recognition
#6
Lacey Best-Rowden, Anil K Jain
The two underlying premises of automatic face recognition are uniqueness and permanence. This paper investigates the permanence property by addressing the following: Does face recognition ability of state-of-the-art systems degrade with elapsed time between enrolled and query face images? If so, what is the rate of decline w.r.t. the elapsed time? While previous studies have reported degradations in accuracy, no formal statistical analysis of large-scale longitudinal data has been conducted. We conduct such an analysis on two mugshot databases, which are the largest facial aging databases studied to date in terms of number of subjects, images per subject, and elapsed times...
January 16, 2017: IEEE Transactions on Pattern Analysis and Machine Intelligence
https://www.readbyqxmd.com/read/28092495/nonhypervascular-pancreatic-neuroendocrine-tumors-differential-diagnosis-from-pancreatic-ductal-adenocarcinomas-at-mr-imaging-retrospective-cross-sectional-study
#7
Sun Kyung Jeon, Jeong Min Lee, Ijin Joo, Eun Sun Lee, Hyun Jeong Park, Jin-Young Jang, Ji Kon Ryu, Kyung Bun Lee, Joon Koo Han
Purpose To determine useful magnetic resonance (MR) imaging features to differentiate nonhypervascular pancreatic neuroendocrine tumors (PNETs) from pancreatic ductal adenocarcinomas (PDACs). Materials and Methods The institutional review board approved this retrospective study and waived the informed consent requirement. Seventy-four patients with surgically confirmed PNETs and 82 patients with PDACs who underwent gadobutrol-enhanced MR imaging were included. Two radiologists independently evaluated the morphologic characteristics and temporal enhancement patterns of each tumor...
January 13, 2017: Radiology
https://www.readbyqxmd.com/read/28092475/temperature-development-on-the-external-root-surface-during-laser-assisted-endodontic-treatment-applying-a-microchopped-mode-of-a-980%C3%A2-nm-diode-laser
#8
Franziska Beer, Eleftherios Terry R Farmakis, Josip Kopic, Christoph Kurzmann, Andreas Moritz
OBJECTIVE: The aim of this article was to investigate the temperature increase of the external root surface during laser-assisted endodontic treatment using a diode laser (980 nm) in a microchopped mode. METHODS: Ten freshly extracted, human maxillary incisors with mature apices were collected, prepared to size F4 at working length (ProTaper; Dentsply Maillefer, Ballaigues, Switzerland), mounted to a holder, and irradiated (using spiral movements in coronal direction) with a diode laser (GENTLEray 980 Classic Plus; KaVo, Biberach, Germany) with a 200 μm fiber in four different treatment groups: Group 1 (control group) was irradiated in six cycles of 5-sec irradiation/20-sec pause with 2...
January 12, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28092230/octamethylcyclotetrasiloxane-d4
#9
(no author information available yet)
Octamethylcyclotetrasiloxane (D4; CAS No. 556-67-2) is used as a monomer in the manufacture of polymeric materials, which are widely used in various industrial and/or medical applications, such as breast implants. D4 has a relatively low order of toxicity following acute administration via the oral, dermal, and inhalation routes of exposure and is not considered to be a dermal or eye irritant or to be a dermal sensitizer. There is no appreciable dermal absorption of D4 based on results from in vivo and in vitro studies...
January 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28092229/decamethylcyclopentasiloxane-d5
#10
(no author information available yet)
Decamethylcyclopentasiloxane (D5; CAS No. 541-02-6) is a precursor in the production of siloxane polymers for industry and medicine and is a carrier ingredient in many toiletries and cosmetics. D5 has a relatively low order of toxicity following acute administration via the oral, dermal, and inhalation routes of exposure. It is not considered to be a dermal or eye irritant or a dermal sensitizer. There is no appreciable dermal absorption of D5 based on results from in vivo and in vitro studies. It has not been shown to be genotoxic/mutagenic when tested in a number of short-term in vitro and in vivo assays and did not cause reproductive or developmental toxicity in rats...
January 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/28092017/transanal-total-mesorectal-excision-for-a-large-leiomyosarcoma-at-the-lower-rectum-a-case-report-and-literature-review
#11
Nobuaki Hoshino, Koya Hida, Kenji Kawada, Takaki Sakurai, Yoshiharu Sakai
BACKGROUND: Rectal leiomyosarcoma (LMS) is an extremely rare disease. Previously, LMS was not properly distinguishable from gastrointestinal stromal tumor (GIST) until c-kit, a characteristic marker of GIST, was discovered in 1998. No standard therapeutic strategy for gastrointestinal LMS has been established except for surgical resection because of its rarity. Rectal LMS is often accompanied by symptoms, which can enable detection at a small size. However, when a large LMS is detected at the lower rectum, it is difficult to excise due to the narrow pelvic space...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28091980/comparison-of-tc-99m-maraciclatide-and-tc-99m-sestamibi-molecular-breast-imaging-in-patients-with-suspected-breast-cancer
#12
Michael K O'Connor, Melissa M B Morrow, Katie N Hunt, Judy C Boughey, Dietlind L Wahner-Roedler, Amy Lynn Conners, Deborah J Rhodes, Carrie B Hruska
BACKGROUND: Molecular breast imaging (MBI) performed with (99m)Tc sestamibi has been shown to be a valuable technique for the detection of breast cancer. Alternative radiotracers such as (99m)Tc maraciclatide may offer improved uptake in breast lesions. The purpose of this study was to compare relative performance of (99m)Tc sestamibi and (99m)Tc maraciclatide in patients with suspected breast cancer, using a high-resolution dedicated gamma camera for MBI. Women with breast lesions suspicious for malignancy were recruited to undergo two MBI examinations-one with (99m)Tc sestamibi and one with (99m)Tc maraciclatide...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28091923/experimental-study-of-the-effects-of-nanodispersed-ceria-on-wound-repair
#13
O A Legon'kova, T A Ushakova, I P Savchenkova, N V Perova, M S Belova, A A Torkova, A E Baranchikov, O S Ivanova, A I Korotaeva, V K Ivanov
We studied the effects of nanodispersed ceria on wound healing in vitro and in vivo. It was found that cerium dioxide stimulated wound healing, which manifested in shrinkage of burn wound area (by 1.5 times) and intensification (by 2.4 times) marginal epithelialization.
January 14, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28091875/the-effect-of-veneering-on-the-marginal-fit-of-cad-cam-generated-copy-milled-and-cast-metal-copings
#14
Sabit Melih Ates, Zeynep Yesil Duymus, Ipek Caglar, Bilal Hologlu
OBJECTIVE: This in vitro study investigated the marginal fit of metal and zirconia copings before and after veneering on dies with shoulder/chamfer (s/c) finish lines. MATERIALS AND METHODS: Using CAD/CAM, ten (n = 10) each s/c zirconia (NZ) copings and ten (n = 10) each s/c metal (MM) copings were generated. As controls, ten (n = 10) each s/c zirconia copings were copy-milled (ZZ) and ten (n = 10) each s/c metal copings were cast (CC). The vertical marginal discrepancy of the copings was measured at 20 predefined spots of the circular shoulder and chamfer finish lines in microns (μm) before and after a first and a second veneering firing using a stereomicroscope at ×40 magnification...
January 13, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28091845/comparison-of-the-clinical-results-of-abdominoperanal-intersphincteric-resection-and-abdominoperineal-resection-for-lower-rectal-cancer
#15
Shunsuke Tsukamoto, Yukihide Kanemitsu, Dai Shida, Hiroki Ochiai, Junichi Mazaki
BACKGROUND: The aim of this study was to compare the oncologic results of abdominoperanal intersphincteric resection (ISR) and abdominoperineal resection (APR). METHODS: Between 2003 and 2014, 277 consecutive patients with stage I-III low rectal cancer located within 5 cm from the anal verge underwent curative ISR and APR. A retrospective comparison of these two procedures was performed. RESULTS: Overall, 128 patients underwent ISR and 149 underwent APR...
January 16, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28091767/intramuscular-myxoma-clinical-and-surgical-observation-notes-on-eleven-cases
#16
Yahya Baltu, Şefik Murat Arikan, Utku Can Dölen, Hakan Uzun, Banu İnce Alkan, Orhan Aydın
PURPOSE: Intramuscular myxoma (IM) is a benign, soft tissue neoplasm of mesenchymal origin. We report our experience with this tumour. METHOD: This clinical study comprised 11 cases of IM that were operated on between March 2008 and June 2016. Tumour location and size, results of pre-operative radiological studies, preop-erative biopsies, pathology examinations, applied surgical method and post-operative complications were reported for all patients. RESULTS: In total, nine patients with 11 IMs with a mean age of 60...
January 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28091744/prediction-of-pancreatic-fistula-after-distal-pancreatectomy-based-on-cross-sectional-images
#17
Ye Rim Chang, Jae Seung Kang, Jin-Young Jang, Woo Hyun Jung, Mee Joo Kang, Kyung Bun Lee, Sun-Whe Kim
BACKGROUND: Postoperative pancreatic fistula (POPF) is one of the most common and clinically relevant complications after distal pancreatectomy (DP), occurring in 5-40% of patients. Determining risk factors for this complication may aid in its prevention. This study sought to predict the development of POPF after DP preoperatively and objectively based on radiologic findings. METHODS: This study included 60 patients who underwent DP using a stapler for pancreatic division between June 2011 and January 2013...
January 13, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28091728/value-of-nonrigid-registration-of-pre-procedure-mr-with-post-procedure-ct-after-radiofrequency-ablation-for-hepatocellular-carcinoma
#18
Juil Park, Jeong Min Lee, Dong Ho Lee, Ijin Joo, Jeong Hee Yoon, Jin Young Park, Ernst Klotz
PURPOSE: To evaluate the value of pre-radiofrequency ablation (RFA) MR and post-RFA CT registration for the assessment of the therapeutic response of hepatocellular carcinoma (HCC). MATERIALS AND METHODS: A total of 178 patients with single HCC who received RFA as an initial treatment and had available pre-RFA MR and post-RFA CT images were included in this retrospective study. Two independent readers (one experienced radiologist, one inexperienced radiologist) scored the ablative margin (AM) of treated tumors on a four-point scale (1, residual tumor; 2, incomplete AM; 3, borderline AM; 4, sufficient AM), in two separate sessions: (1) visual comparison between pre-and post-RFA images; (2) with addition of nonrigid registration for pre- and post-RFA images...
January 13, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28091721/influence-of-tooth-dimension-on-the-initial-mobility-based-on-plaster-casts-and-x-ray-images-a-numerical-study
#19
Martin Hartmann, Cornelius Dirk, Susanne Reimann, Ludger Keilig, Anna Konermann, Andreas Jäger, Christoph Bourauel
AIMS: The goal was to determine the influence of different geometric parameters of the tooth on the initial tooth mobility and the position of the center of resistance employing numerical models based on scaled X-ray images and plaster casts. METHODS: The dimensions of tooth 21 were measured in 21 patients, using radiographs and dental casts. Length and mesiodistal width of the tooth were obtained from the X-ray image and the orovestibular diameter from the plaster cast...
January 13, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28091593/economic-development-and-forest-cover-evidence-from-satellite-data
#20
Jesús Crespo Cuaresma, Olha Danylo, Steffen Fritz, Ian McCallum, Michael Obersteiner, Linda See, Brian Walsh
Ongoing deforestation is a pressing, global environmental issue with direct impacts on climate change, carbon emissions, and biodiversity. There is an intuitive link between economic development and overexploitation of natural resources including forests, but this relationship has proven difficult to establish empirically due to both inadequate data and convoluting geo-climactic factors. In this analysis, we use satellite data on forest cover along national borders in order to study the determinants of deforestation differences across countries...
January 16, 2017: Scientific Reports
keyword
keyword
83862
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"