Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 320 for “"sentinel"”.
-
Sentinel behaviour and urban environments: A corvid’s perspective
… success of urbanized species are underexplored. Sentinel behaviour is a social behaviour that could increase a species' survival of group members. Using a scoping review approach, several intrinsic (or internal, e.g. sex or body mass) and extrinsic (or external, e.g. predation risk or …
-
Mezőgazdasági táblák talajheterogenitás vizsgálata Sentinel 2 NDVI adatok felhasználásával
… mentes, 10×10 méteres térbeli felbontású Sentinel 2 műholdfelvételből készítettem növényi vegetációs index (NDVI) képeket. A térinformatikai adatbázis adataiból „Attribute based clustering” modulját felhasználva 40x futtatott k-közép (k-mean) eljárással három csoportot (klasztert) …
-
Sentinel palydovinių duomenų analizės taikymas karo poveikiui aplinkai tirti /
… located in different war-affected areas. Using Sentinel 2 data, it examines the impact of direct hostilities on fields located in Zaporizhzhya, Luhansk and Kharkiv oblasts, where clashes and shelling are still ongoing. It also uses Sentinel 2, Sentinel 1 and historical weather data to …
-
Petrology of the Sentinel Butte Formation (Paleocene), North Dakota
<p> Sedimentary materials of the Sentinel Butte Formation have been petrographically examined using optical and scanning electron micro scope/microprobe techniques. The formation consists of fine-grained materials which generally are classified mineralogically as volcanic litharenites or …
-
Characterization of Sentinel Butte Petrified Wood and Host Lithology Associations
… of petrified wood occur in the Paleocene Sentinel Butte Formation in western North Dakota. An examination of this petrified wood has provided information about modes and degrees of fossilization, silica phases present, organic structure preservation, and parent tree type. In the study …
-
Ecological and Anthropogenic Influences on a Sentinel Species' Gut Microbiome
… diseases and pathogens. Therefore, their role as sentinels of ecosystems, as well as a greater comprehension of what aspects of habitat are driving the gut microbiome, merits conservation and research. I seek to add to our understanding of what habitat factors are driving a sentinel species’ …
-
The use of lymphoscintigraphy to localise the sentinel lymph node
Sentinel lymph node (SLN) biopsy is being used increasingly for staging early breast carcinoma in place of complete axillary lymph node dissection. The optimal method to identify the SLN and has not been clearly elucidated in the literature. A number of techniques have been proposed for identifying …
-
The sentinel hypothesis : a role for the mammalian superior colliculus
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Psychology, 1980.
-
Sentinel Lymph Node in Rectal Cancer: Role of Transanal Endoscopic Microsurgery
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Detecting prostate cancer metastases - PET/CT and the sentinel node technique
… in bone, lymph nodes, and other organs. Sentinel node (SN) detection is an invasive method that allows selective dissection of the lymph nodes most likely to contain metastases. The SN technique may increase the detection rate by identifying metastases also outside the template of a …
-
Water Surfaces Detection from Sentinel-1 SAR Images using Deep Learning
… the So2sat dataset, which contains patches of Sentinel-1 satellite SAR images. Next, we use the trained neural network to detect water from SAR images of several cities. The obtained results show satisfactory scores and also visually appear accurate. In the final optimization phase, we: a) …
-
An investigation of genetic heterogeneity in a biological sentinel species (Lumbricus rubellus)
… sources of genetic heterogeneity within the sentinel species Lumbricus rubellus that could compromise its suitability for ecotoxicological assessment. The species appears to consist of two genetically divergent cryptic lineages and has been demonstrated to display genetic adaptation towards …
-
Remote sensing and GIS approaches for elaborating Sentinel-2 images: application on volcanic areas [Metodi di telerilevamento e GIS per l’elaborazione delle immagini Sentinel-2: applicazioni in aree vulcaniche]
… utilizzando le immagini multispettrali di Sentinel-2. L’approccio integra il toolbox PolyGrid per l’estrazione automatica degli affioramenti di roccia nuda con un insieme di rapporti di bande spettrali mirati a rilevare le variazioni negli stati di ossidazione del ferro, supportati da …
-
Sentinel Lymph Node Biopsy in a Resource Limited Setting: A Retrospective Comparison of Sentinel Lymph Node Biopsy before and after the introduction of SentiMag at an Academic Breast Unit
Background: Sentinel lymph node biopsy (SLNB) is performed for the staging and prognostication of breast cancer in cases with a clinically and radiologically negative axilla. Using blue dye and a radioactive colloid injection is considered the gold standard for SLNB. This study aims to evaluate the …
-
Heavy Metal Distribution Across Three Georgia Estuaries Using Coastal Sharks As Sentinel Species
<p>Estuaries are transitional environments that play key roles in coastal ecosystem functioning by providing essential habitats to ecologically important plant and animal species. Estuaries are exposed to a number of anthropogenic impacts, including heavy metal contamination from human activities. …
-
Experience using a small field of view gamma camera for intraoperative sentinel lymph node procedures
Staging is critical in the management of cancer. Sentinel lymph node (SLN) biopsy is one method used in the assessment of cancer spread. SLN procedures are standard practice in the management of some cancers although; these procedures have only recently been developed and refined. SLN procedures …
Page 1 of 16