keyword
MENU ▼
Read by QxMD icon Read
search

Forest

keyword
https://www.readbyqxmd.com/read/28103565/a-scan-line-forest-growing-based-hand-segmentation-framework-with-multipriority-vertex-stereo-matching-for-wearable-devices
#1
Yiyi Ren, Xiang Xie, Guolin Li, Zhihua Wang
A hand segmentation framework is proposed for 3-D hand gesture interaction for wearable devices. In this framework, all the objects in a scene are regarded as directed trees in a forest, and the problem of the hand segmentation can be converted into finding the target tree (called hand tree) in the forest with proper hand properties including color consistency, space consistency, disparity, and hand shape constraints. The forest grows scan-line by scan-line from high reliable regions to low reliable regions...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28103408/functional-planning-units-for-the-management-of-an-endangered-brazilian-titi-monkey
#2
Sidney F Gouveia, João Pedro Souza-Alves, Bruno B de Souza, Raone Beltrão-Mendes, Leandro Jerusalinsky, Stephen F Ferrari
Conservation practices in the tropics often rely on the data available for a few, better-known species and the adoption of an appropriate spatial scale. By defining a set of landscape units that account for critical aspects of the focal species, the information available on these conservation targets can support regional conservation policies. Here, we define and classify adjacent landscapes, termed planning units, to orientate management decisions within and among these landscapes, which are occupied by an endangered flagship primate species (Coimbra-Filho's titi monkey, Callicebus coimbrai) from eastern Brazil...
January 19, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28103281/selection-of-native-tree-species-for-subtropical-forest-restoration-in-southwest-china
#3
Yang Lu, Sailesh Ranjitkar, Rhett D Harrison, Jianchu Xu, Xiaokun Ou, Xuelan Ma, Jun He
The use of native species in forest restoration has been increasingly recognized as an effective means of restoring ecosystem functions and biodiversity to degraded areas across the world. However, successful selection of species adapted to local conditions requires specific knowledge which is often lacking, especially in developing countries. In order to scale up forest restoration, experimental data on the responses of native species to propagation and restoration treatments across a range of local conditions are required...
2017: PloS One
https://www.readbyqxmd.com/read/28103120/compassionate-options-for-pediatric-ems-cope-addressing-communication-skills
#4
Aaron W Calhoun, Erica R H Sutton, Anita P Barbee, Beth McClure, Carrie Bohnert, Richard Forest, Peter Taillac, Mary E Fallat
INTRODUCTION: Each year, 16,000 children suffer cardiopulmonary arrest, and in one urban study, 2% of pediatric EMS calls were attributed to pediatric arrests. This indicates a need for enhanced educational options for prehospital providers that address how to communicate to families in these difficult situations. In response, our team developed a cellular phone digital application (app) designed to assist EMS providers in self-debriefing these events, thereby improving their communication skills...
January 19, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28102945/learning-based-deformable-image-registration-for-infant-mr-images-in-the-first-year-of-life
#5
Shunbo Hu, Lifang Wei, Yaozong Gao, Yanrong Guo, Guorong Wu, Dinggang Shen
PURPOSE: Many brain development studies have been devoted to investigate dynamic structural and functional changes in the first year of life. To quantitatively measure brain development in such a dynamic period, accurate image registration for different infant subjects with possible large age gap is of high demand. Although many state-of-the-art image registration methods have been proposed for young and elderly brain images, very few registration methods work for infant brain images acquired in the first year of life, because of (a) large anatomical changes due to fast brain development and (b) dynamic appearance changes due to white-matter myelination...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102913/autumn-photosynthetic-decline-and-growth-cessation-in-seedlings-of-white-spruce-are-decoupled-under-warming-and-photoperiod-manipulations
#6
Joseph R Stinziano, Danielle A Way
Climate warming is expected to increase the seasonal duration of photosynthetic carbon fixation and tree growth in high latitude forests. However photoperiod, a crucial cue for seasonality, will remain constant, which may constrain tree responses to warming. We investigated the effects of temperature and photoperiod on weekly changes in photosynthetic capacity, leaf biochemistry and growth in seedlings of a boreal evergreen conifer, white spruce (Picea glauca (Moench) Voss). Warming delayed autumn declines in photosynthetic capacity, extending the period when seedlings had high carbon uptake...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28102441/the-effect-of-land-use-on-bacterial-communities-in-saline-alkali-soil
#7
Mu Peng, Hongbai Jia, Qiuyu Wang
Saline-alkali soil can inhibit the growth of crops as a consequence of cellular damage through oxidation of lipids and proteins and degradation of nucleic acids, ultimately leading to cell death. The bacterial community composition and diversity in saline-alkali soil across different land uses, such as agricultural land, forest land, and grassland, were evaluated using high-throughput sequencing of the bacterial 16S rRNA gene. Significant differences in the soil physicochemical characteristics and bacterial community among different land uses were observed in this study...
January 19, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28102258/conservation-pristine-forests-are-shrinking-fast
#8
(no author information available yet)
No abstract text is available yet for this article.
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28102238/fibronectin-guided-migration-of-carcinoma-collectives
#9
Sandeep Gopal, Laurence Veracini, Dominique Grall, Catherine Butori, Sébastien Schaub, Stéphane Audebert, Luc Camoin, Emilie Baudelet, Agata Radwanska, Stéphanie Beghelli-de la Forest Divonne, Shelia M Violette, Paul H Weinreb, Samah Rekima, Marius Ilie, Anne Sudaka, Paul Hofman, Ellen Van Obberghen-Schilling
Functional interplay between tumour cells and their neoplastic extracellular matrix plays a decisive role in malignant progression of carcinomas. Here we provide a comprehensive data set of the human HNSCC-associated fibroblast matrisome. Although much attention has been paid to the deposit of collagen, we identify oncofetal fibronectin (FN) as a major and obligate component of the matrix assembled by stromal fibroblasts from head and neck squamous cell carcinomas (HNSCC). FN overexpression in tumours from 435 patients corresponds to an independent unfavourable prognostic indicator...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28101636/a-slow-opportunist-physiological-and-growth-responses-of-an-obligate-understory-plant-to-patch-cut-harvesting
#10
Jennifer L Chandler
Understory light environments change rapidly following timber harvest, and while many understory species utilize and benefit from the additional light, this response is not ubiquitous in shade-obligate species. I examined the effects of patch cut timber harvest on the physiology and growth of an obligate forest understory species to determine if disturbances via timber harvest are physiological stressors or whether such disturbances provide physiological benefits and growth increases in understory species. Forest canopy structure, along with photosynthesis, respiration, water use efficiency, stomatal conductance, and growth rates of American ginseng were quantified one summer before and two summers after patch cut timber harvest...
January 19, 2017: Oecologia
https://www.readbyqxmd.com/read/28101587/factors-limiting-formation-of-community-forestry-enterprises-in-the-southern-mixteca-region-of-oaxaca-mexico
#11
José Antonio Hernández-Aguilar, Héctor Sergio Cortina-Villar, Luis Enrique García-Barrios, Miguel Ángel Castillo-Santiago
Many studies have considered community-based forestry enterprises to be the best option for development of rural Mexican communities with forests. While some of Mexico's rural communities with forests receive significant economic and social benefits from having a community forestry enterprise, the majority have not formed such enterprises. The purpose of this article is to identify and describe factors limiting the formation of community forestry enterprise in rural communities with temperate forests in the Southern Mixteca region of Oaxaca, Mexico...
January 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28101400/choriocapillaris-evaluation-in-choroideremia-using-optical-coherence-tomography-angiography
#12
Simon S Gao, Rachel C Patel, Nieraj Jain, Miao Zhang, Richard G Weleber, David Huang, Mark E Pennesi, Yali Jia
The choriocapillaris plays an important role in supporting the metabolic demands of the retina. Studies of the choriocapillaris in disease states with optical coherence tomography angiography (OCTA) have proven insightful. However, image artifacts complicate the identification and quantification of the choriocapillaris in degenerative diseases such as choroideremia. Here, we demonstrate a supervised machine learning approach to detect intact choriocapillaris based on training with results from an expert grader...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28101125/preventive-transarterial-embolization-in-upper-nonvariceal-gastrointestinal-bleeding
#13
Aleksejs Kaminskis, Aina Kratovska, Sanita Ponomarjova, Anna Tolstova, Maksims Mukans, Solvita Stabiņa, Raivis Gailums, Andrejs Bernšteins, Patricija Ivanova, Viesturs Boka, Guntars Pupelis
BACKGROUND: Transarterial embolization (TAE) is a therapeutic option for patients with a high risk of recurrent bleeding after endoscopic haemostasis. The aim of our prospective study was a preliminary assessment of the safety, efficacy, and clinical outcomes following preventive TAE in patients with non-variceal acute upper gastrointestinal bleeding (NVUGIB) with a high risk of recurrent bleeding after endoscopic haemostasis. METHODS: Preventive visceral angiography and TAE were performed after endoscopic haemostasis on patients with NVUGIB who were at a high risk of recurrent bleeding (PE+ group)...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28100803/a-new-cue-for-torpor-induction-charcoal-ash-and-smoke
#14
Clare Stawski, Julia Nowack, Gerhard Körtner, Fritz Geiser
Recent work has shown that the use of torpor for energy conservation increases after forest fires in heterothermic mammals, probably in response to the reduction of food. However, the specific environmental cues for this increased torpor expression remain unknown. It is possible that smoke and the novel substrate of charcoal and ash act as signals for an impending period of starvation requiring torpor. We therefore tested the hypothesis that the combined cues of smoke, a charcoal/ash substrate and food shortage will enhance torpor expression in a small forest-dwelling marsupial, the yellow-footed antechinus (Antechinus flavipes), because like other animals that live in fire-prone habitats they must effectively respond to fires to ensure survival...
January 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28100711/effects-of-structural-complexity-on-within-canopy-light-environments-and-leaf-traits-in-a-northern-mixed-deciduous-forest
#15
Alexander T Fotis, Peter S Curtis
Canopy structure influences forest productivity through its effects on the distribution of radiation and the light-induced changes in leaf physiological traits. Due to the difficulty of accessing and measuring forest canopies, few field-based studies have quantitatively linked these divergent scales of canopy functioning. The objective of our study was to investigate how canopy structure affects light profiles within a forest canopy and whether leaves of mature trees adjust morphologically and biochemically to the light environments characteristic of canopies with different structural complexity...
January 18, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28100710/tree-diversity-affects-chlorophyll-a-fluorescence-and-other-leaf-traits-of-tree-species-in-a-boreal-forest
#16
Martina Pollastrini, Ana Garcia Nogales, Raquel Benavides, Damien Bonal, Leena Finer, Mariangela Fotelli, Arthur Gessler, Charlotte Grossiord, Kalliopi Radoglou, Reto J Strasser, Filippo Bussotti
An assemblage of tree species with different crown properties creates heterogeneous environments at the canopy level. Changes of functional leaf traits are expected, especially those related to light interception and photosynthesis. Chlorophyll a fluorescence (ChlF) properties in dark-adapted leaves, specific leaf area, leaf nitrogen content (N) and carbon isotope composition (δ(13)C) were measured on Picea abies (L.) H.Karst., Pinus sylvestris L. and Betula pendula Roth. in monospecific and mixed boreal forests in Europe, in order to test whether they were affected by stand species richness and composition...
January 18, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28100029/isolation-with-asymmetric-gene-flow-during-the-nonsynchronous-divergence-of-dry-forest-birds
#17
Jessica A Oswald, Isaac Overcast, William M Mauck, Michael J Andersen, Brian Tilston Smith
Dry forest bird communities in South America are often fragmented by intervening mountains and rainforests, generating high local endemism. The historical assembly of communities often results from dynamic processes linked to numerous population histories among co-distributed species. Nevertheless, species may diversify in the same way through time if landscape and environmental features, or species ecologies, similarly structure populations. Here we tested whether six co-distributed taxon pairs that occur in the dry forests of the Tumbes and Marañón Valley of northwestern South America show concordant patterns and modes of diversification...
January 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28100027/moving-beyond-presence-and-absence-when-examining-changes-in-species-distributions
#18
Michael B Ashcroft, Diana H King, Ben Raymond, Johanna D Turnbull, Jane Wasley, Sharon A Robinson
Species distributions are often simplified to binary representations of the ranges where they are present and absent. It is then common to look for changes in these ranges as indicators of the effects of climate change, the expansion or control of invasive species or the impact of human land use changes. We argue that there are inherent problems with this approach, and more emphasis should be placed on species relative abundance rather than just presence. The sampling effort required to be confident of absence is often impractical to achieve, and estimates of species range changes based on survey data are therefore inherently sensitive to sampling intensity...
January 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28100018/conversion-of-amazon-rainforest-to-agriculture-alters-community-traits-of-methane-cycling-organisms
#19
Kyle M Meyer, Ann M Klein, Jorge L M Rodrigues, Klaus Nüsslein, Susannah G Tringe, Babur S Mirza, James M Tiedje, Brendan J M Bohannan
Land use change is one of the greatest environmental impacts worldwide, especially to tropical forests. The Amazon rainforest has been subject to particularly high rates of land use change, primarily to cattle pasture. A commonly observed response to cattle pasture establishment in the Amazon is the conversion of soil from a methane sink in rainforest, to a methane source in pasture. However, it is not known how the microorganisms that mediate methane flux are altered by land use change. Here we use the deepest metagenomic sequencing of Amazonian soil to date to investigate differences in methane-cycling microorganisms and their traits across rainforest and cattle pasture soils...
January 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28100016/validation-of-an-enzyme-immunoassay-and-comparison-of-fecal-cortisol-metabolite-levels-in-black-and-gold-howler-monkeys-alouatta-caraya-inhabiting-fragmented-and-continuous-areas-of-the-humid-chaco-region-argentina
#20
Verónica Inés Cantarelli, Maria Amparo Perez-Rueda, Martin M Kowalewski, Gabriela F Mastromonaco, Marina Flavia Ponzio
In the last years, the study of how environmental stimuli influence the physiology and specifically the endocrinology of an organism became increasingly important, relying mainly on the quantification of glucocorticoids to monitor animal welfare. Most studies investigating cortisol levels in primates were focused on the impact of social stressors; however, a major concern for the conservation of howler monkeys is the increased habitat fragmentation led by the advancement of the agricultural frontier. We compared fecal cortisol metabolite levels (FGCM) in howler monkeys (Alouatta caraya) living in fragmented and continuous forests of the Argentine humid Chaco region, throughout the warm season (spring-summer)...
January 18, 2017: American Journal of Primatology
keyword
keyword
26810
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"