Bone histology, palaeobiology, and early diagenetic history of extinct equids from Turkey

2020 ◽  
pp. 1-20
Author(s):  
Carmen Nacarino-Meneses ◽  
Anusuya Chinsamy ◽  
Serdar Mayda ◽  
Tanju Kaya ◽  
Ugur Cengiz Erismis

Abstract Bone histology has proved to be a valuable tool to obtain information about the palaeobiology and early taphonomic history of fossil vertebrates. However, there are still many extinct taxa for which bone histology studies could be applied to deduce information about their life history and early diagenetic changes. Here, we partially fill this gap by studying bone microstructure and bone micropreservation in the third metapodia of Hipparion and Equus recovered from several Miocene, Pliocene, and Pleistocene localities in Turkey. Our histological analysis reveals that most of the bone cortices under study are composed of a well-vascularized fibrolamellar bone. Furthermore, we record the presence of compact coarse cancellous bone in a Hipparion metatarsal. In terms of histological preservation, our findings provide supporting evidence that differences in moisture, oxygen, and/or temperature during fossilisation at the different localities impacted the quality of bone preservation. Bacterial bioerosion was extensive in the samples, and we also identified a specific tunnelling morphology that we tentatively consider to be damage caused by freshwater algae. The present study provides novel insight into the palaeobiology and early diagenetic history of extinct horses from Turkey and sets the stage for further research in this area.

2014 ◽  
Vol 4 (2) ◽  
pp. 54-78
Author(s):  
Petr Adamec ◽  
Marián Svoboda

This paper deals with the results of sociological survey focused on identification of the attitudes of elderly people to further education. The research was carried out in September 2010. Experience of elderly people with further education, their readiness (determination) for further education as well as their motivation and barriers in further education were also subjects of this research. Detecting elderly population’s awareness of universities of the third age and finding out their further education preferences were an integral part of the research. Research sample consisted of citizens over 55 years living in the South Moravian region. The survey results are structured by socio-demographic features e.g.: age, sex, educational attainment etc. and provide an interesting insight into the attitudes of the target group to one of the activities that contributes to improvement of their quality of life.


2010 ◽  
Vol 63 (7-8) ◽  
pp. 516-521 ◽  
Author(s):  
Radmila Ljustina-Pribic ◽  
Slobodanka Petrovic ◽  
Jelena Tomic

Introduction. This article summarizes the contribution of epidemiology to the understanding of childhood asthma. The first task in epidemiology is to determine prevalence and incidence of any disease. Prevalence. Epidemiological investigations are aimed at evaluating hypotheses about causes of disease by defining demographic characteristics of a certain population as well as by determining possible effects of environmental factors. In spite of some limitations, data obtained by epidemiological investigations have been valuable in confirming both the increasing incidence of asthma and the differences in prevalence in certain population groups. The observance of this phenomenon has led to much speculation and a lot of attempts to identify the reasons behind the rising prevalence. Risk factors. Epidemiological studies have identified risk factors for the development of childhood asthma and provided insight into natural history of disease and prognosis. Factors ranging from increased numbers of immunizations to increased air pollution have been suggested, but subsequent analysis has failed to provide the supporting evidence to implicate most of these possibilities. The concept known as the hygiene hypothesis has gained some support from epidemiological studies. Conclusion. The development of asthma as well as its severity are affected by numerous factors and their interactions can be explained by the heterogeneous nature of this disease.


1999 ◽  
Vol 13 (3) ◽  
pp. 385-408 ◽  
Author(s):  
SHARLENE HESSE-BIBER ◽  
MARGARET MARINO ◽  
DIANE WATTS-ROY

This study provides insight into factors that determine whether women in the college population who exhibit eating-disordered behavior during their college years recover during their postcollege years. The study assessed changes in the eating patterns of 21 women across a six-year time period, from sophomore year in college to two years postcollege. Eleven of the women get better during their postcollege year, whereas 10 of the women continue to struggle with disordered eating. The major differences between the two groups revolve around the relationship between autonomy and relation. Women who get better negotiate the tension between autonomy and relatedness and are more likely to have higher selfesteem based on a more positive self-concept; this, in turn, leads to healthier relationships with food and body image. Two factors that appear to influence this negotiation include (I) one's history of chronic physical or sexual abuse and (2) the quality of familial messages about food, body image, relationship, and autonomy.


2015 ◽  
Vol 52 (2) ◽  
pp. 100-104 ◽  
Author(s):  
Valesca DALL'ALBA ◽  
Sidia Maria CALLEGARI-JACQUES ◽  
Cláudio KRAHE ◽  
Juliana Paula BRUCH ◽  
Bruna Cherubini ALVES ◽  
...  

Background Heartburn and regurgitation frequently occur in the third trimester of pregnancy, but their impact on quality of life has not been thoroughly investigated. Objective To measure health-related quality of life of third-trimester pregnant women with heartburn and regurgitation. Methods Data on obstetric history, heartburn and regurgitation frequency and intensity, history of heartburn and regurgitation and health-related quality of life were collected of 82 third-trimester pregnant women. Results Sixty-two (76%) women had heartburn, and 58 (71%), regurgitation; 20 were asymptomatic. Mean gestational age was 33.8±3.7 weeks; 35 (43%) women had a family history of heartburn and/or regurgitation, and 57 (70%) were asymptomatic before pregnancy. The following quality of life concepts were significantly reduced: physical problems and social functioning for heartburn; physical problems and emotional functioning for regurgitation. There was agreement between heartburn in present and previous pregnancies. Conclusion Heartburn and/or regurgitation affected health-related quality of life of third trimester pregnant women


Author(s):  
Renata Elżbieta Paliga

On the Need for Research into the History of Hematology Hematology emerged from the study of internal diseases in the twentieth century. Its history can be divided into three periods: the first (elementary) – separation from internal diseases, the second (interdisciplinary) – development by combining the achievements from other fields and joint activities of research teams, and the third (which is difficult to label as it is ongoing) – cognition at the genetic and molecular level. Thanks to the progress of science (immunology, serology, genetics, cytogenetics, genetic engineering, etc.) and the use of their discoveries in broadly-understood hematology, there has been a spectacular change in the knowledge about blood diseases and prognosis. The spectrum of treatment of chronic diseases has been expanded, improving the quality of patients’ lives, and the diagnostic possibilities have been enlarged. The history of such an important field of medicine has been little studied in Poland. This article aims to justify the need to research the history of Polish hematology.


2021 ◽  
Author(s):  
Maria J. Redondo ◽  
Ingrid Libman ◽  
David M Maahs ◽  
Sarah K. Lyons ◽  
Mindy Saraco ◽  
...  

The American Diabetes Association 2020 Standards of Medical Care in Diabetes (Standards of Care) recommends a hemoglobin A1C of <7% (53 mmol/ml) for many children with type 1 diabetes (T1D), with an emphasis on target personalization. A higher A1C target of <7.5% may be more suitable for youth who cannot articulate symptoms of hypoglycemia or have hypoglycemia unawareness, and for those who do not have access to analog insulins, advanced diabetes technologies, or cannot monitor blood glucoses regularly. Even less stringent A1C targets (e.g. <8%) may be warranted for children with a history of severe hypoglycemia, severe morbidities, or short life expectancy. During the “honeymoon” period and in situations where lower mean glycemia is achievable without excessive hypoglycemia or reduced quality of life, an A1C <6.5% may be safe and effective


Author(s):  
Ārija Kolosova ◽  

The aim of this article is to provide an insight into the theoretical principles of the district history, and to actualize the significance and problems of regional history research. Local district historians are the inhabitants and patriots of the area. Their work is an important contribution to the identification and pre-servation of local cultural heritage. In the local research there are no uniform standards, so the results are diverse. However, in the district history research, the level and quality of the research may vary as local researchers are mostly amateur researchers who have focused on researching the history of the region in their spare time for their own interest. Consequently, errors and shortcomings are possible in the research process. This study analyzes the history books of the neighboring regions – Grobiņa, Nīca and Rucava. The authors are local researchers and the content of the books has a large amount of historical sources and literature. The advantages and disadvantages of such studies are also indicated in this article.


2017 ◽  
Vol 2017 ◽  
pp. 1-3
Author(s):  
Chelsea Casey ◽  
Stephen E. Weis

Vitiligo is a disorder of skin pigmentation. It affects approximately 1% of the world’s population. Vitiligo occurs equally between the sexes with no racial predilections. The majority of cases are acquired and arise between the second and third decades of life. Acquired vitiligo has an unpredictable clinical course. Congenital vitiligo is rare with few reported cases. Due to the rarity of congenital vitiligo, little is known about the clinical course. For patients with acquired or congenital vitiligo, the psychosocial burden can have a profound impact on quality of life. The unknown course of congenital vitiligo can exacerbate the feelings of distress and embarrassment. We report of a case of congenital vitiligo that has been stable for 23 years. The patient had no associated autoimmune disease. The pathogenesis of congenital vitiligo is unknown. This case may be useful to assist clinicians caring for newborns with congenital vitiligo in reassuring parents.


2011 ◽  
Vol 7 (S283) ◽  
pp. 498-499
Author(s):  
Miguel Santander-García ◽  
Valentín Bujarrabal ◽  
Javier Alcolea

AbstractTracking the mass-loss history of planetary nebulae (PNe) by means of molecular emission lines (mainly mm and sub-mm ranges) is fundamental to gain insight into the mechanism of nebular shaping. This is particularly important in cases such as NGC 7027, where most of the nebula is constituted by molecular gas (85% of a total of 1.4 M⊙, see Fong et al. 2001).To this aim, Herschel/HIFI provides an invaluable tool to probe warm molecular gas (~50-1000 K). It produces 1-D, high resolution spectra of the whole nebula (convolved with the telescope beam) in high-excitation molecular transitions (e.g. CO J=6–5, 10–9 and 16–15). Although the morphological information is therefore lost, the kinematics and the excitation conditions can be studied with unprecedented detail (see (see Bujarrabal et al. 2011).).We have developed a code, shapemol, which, used along the existing SHAPE software (Steffen et al. 2010), implements spatiokinematical modeling with accurate non-LTE calculations of line excitation and radiative transfer in molecular species. The high quality of the data, together with this code, have allowed us to study, for the first time, the kinematics and excitation conditions of the warm gas of a PN with such a high-excitation.


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