In most seasonally breeding vertebrates, changes in photoperiod trigger the remodeling of neuroendocrine and glial cells known to be involved in activation of the reproductive axis. We used electron microscopy to determine whether similar remodeling occurs under conditions of co…
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The plant cell wall is a vitally important interface connecting plant cells to their outside environment and neighboring cells. Acting as a hub for defense, signaling, and physiological processes, the plant cell wall was a crucial innovation in plant evolution. Current cell wall…
The human immune system is a vital mechanism that protects the host from outside threats. The two main branches of this system, consisting of innate and adaptive immunity, aid the host when dangers of both imminent and protracted nature occur. Innate lymphoid cells (ILC) play a …
Previous studies on microtaphonomy have identified multiple different organic microstructures in fossil vertebrates from a variety of time periods and environmental settings. This study seeks to investigate the potential taphonomic, paleoclimatic, and geochemical controls on sof…
This dissertation focuses on how a specific conceptual thread of the history of mathematics unfolded throughout the centuries from its original account in Ancient Greece to its demise in the Modern era due to new mathematical developments and, finally, to its revival in the work…
People who analyze images of biological tissue often rely on segmentation of structures as a preliminary step. In particular, laboratories studying the rat brain manually delineate brain regions to position scientific findings on a brain atlas to propose hypotheses about the rat…
Histology is a technique that has any number of diagnostic uses in modern hospital laboratories. However, as a scientific method employed in the study of ancient and mummified remains, it appears to have lost its popularity.This project explores the advantages and limitations of…
The most important prognostic factor in breast cancer is the presence or absence of metastases in axillary lymph nodes. Frozen section and touch imprint cytology are conventional intra-operative methods used in the detection of metastatic breast cancer with varying sensitivities…
Introdução: Atualmente o Cancro Colorretal é uma das neoplasias mais diagnosticadas nos países desenvolvidos. Na Europa, acomete 17 em cada 100 000 habitantes. Apresenta baixa incidência abaixo dos 50 anos de idade e é mais frequente em homens do que mulheres. Os principais fato…
A conte ulceroso e uma doença innamatona crónica ao intestino, que se caractenza por uma inflamação contínua da mucosa ("revestimento interno") do intestino grosso ou cólon. Esta doença é também caracterizada por períodos de remissão e exacerbações agudas, com um curso imprevisí…
Caenagnathidae is a clade of derived oviraptorosaurian theropods that existed in both Asia and North America during the late Cretaceous, forming the sister clade to Oviraptoridae. While the oviraptorids are known from many well-preserved fossils including brooding specimens and …
Sour rot, is a pre-harvest disease that affects many grape varieties including Red Globe, Crimson Seedless, Thompson Seedless, plus others. Typical sour rot symptoms include berry cracking and breakdown of berry tissue with juice leakage onto the berries below the rot. This is c…
Introdução : A colestase neonatal, apesar de ser uma doença com baixa incidência mundial, apresenta uma elevada taxa de mortalidade se não for identificada e tratada de forma precoce. A colestase neonatal é classificada em dois grupos etiológicos distintos: colestase extra-hepát…
Amaç: Bu araştırmada elit kürekçiler ile sedanter bireylerin nöroanatomik farklılıklarının araştırılması hedeflenmiştir. Gereç ve Yöntem: : 18-35 yaş arasındaki 15 elit kürekçi ile 15 sedanter gönüllüden Manyetik Rezonans (MR) ile toplanan anatomik beyin görüntüleri bölütlenerek…
Musa paradisiaca (Plantain) is widely consumed in sub-Sahara Africa and prepared as different delicacies. However, its peels are known to constitute a menace to the society hence adding to the prevailing problem of environmental pollution, particularly in places where ruminants …
Looking out at the international political landscape of the late 1940s and the early 1950s, the Eisenhower administration was determined to challenge the evident appeal of Communism, particularly in Western Europe. NATO, which was a fragile organization due to the devastation of…
In this dissertation we propose two novel image restoration schemes. The first pertains to automatic detection of damaged regions in old photographs and digital images of cracked paintings. In cases when inpainting mask generation cannot be completely automatic, our detection al…