Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
1,756
result(s) for
"French, John"
Sort by:
Analysis of 24 years of mesopause region OH rotational temperature observations at Davis, Antarctica – Part 1: long-term trends
The long-term trend, solar cycle response, and residual variability in 24 years of hydroxyl nightglow rotational temperatures above Davis research station, Antarctica (68∘ S, 78∘ E) are reported. Hydroxyl rotational temperatures are a layer-weighted proxy for kinetic temperatures near 87 km altitude and have been used for many decades to monitor trends in the mesopause region in response to increasing greenhouse gas emissions. Routine observations of the OH(6-2) band P-branch emission lines using a scanning spectrometer at Davis station have been made continuously over each winter season since 1995. Significant outcomes of this most recent analysis update are the following: (a) a record-low winter-average temperature of 198.3 K is obtained for 2018 (1.7 K below previous low in 2009); (b) a long-term cooling trend of -1.2±0.51 K per decade persists, coupled with a solar cycle response of 4.3±1.02 K per 100 solar flux units; and (c) we find evidence in the residual winter mean temperatures of an oscillation on a quasi-quadrennial (QQO) timescale which is investigated in detail in Part 2 of this work. Our observations and trend analyses are compared with satellite measurements from Aura/MLS version v4.2 level-2 data over the last 14 years, and we find close agreement (a best fit to temperature anomalies) with the 0.00464 hPa pressure level values. The solar cycle response (3.4±2.3 K per 100 sfu), long-term trend (-1.3±1.2 K per decade), and underlying QQO residuals in Aura/MLS are consistent with the Davis observations. Consequently, we extend the Aura/MLS trend analysis to provide a global view of solar response and long-term trend for Southern and Northern Hemisphere winter seasons at the 0.00464 hPa pressure level to compare with other observers and models.
Journal Article
تعجيز العقبات وتمكين البيئات
إنه حقا كتاب جيد البناء حظي بشهرة واسعة ويستخدمه الطلاب على نطاق واسع... بسبب خصائصه العظيمة وسهولة فهمه وتنوع مشارب المشاركين فى إعداده. يشتمل على أحدث النصوص المتاحة في مجال دراسة الإعاقة ؛ فبالإضافة إلى تحليل العوائق والعقبات التي يواجهها الأشخاص المعوقون في مجالات التعليم والسكن والترفيه والعمل، تضمنت هذه النسخة المنقحة فصولا جديدة حول القضايا الدولية، التنوع والاختلاف بين الأشخاص المعوقين، النشاط الجنسي، أخلاقيات علم الأحياء.
Book
Urinary signatures are associated with calorie restriction-mediated weight loss in obese Diversity Outbred mice
Metabolomic profiles are increasingly being used to identify responders to dietary interventions. Advances using this approach are particularly needed to personalize and enhance the effectiveness of dietary weight loss interventions. Using obese Diversity Outbred (DO) mice that model genetic and phenotypic heterogeneity of human populations, we aimed to identify urinary metabolite signatures associated with responsiveness to calorie restriction (CR)-mediated weight loss. DO mice (150 males, 150 females) were fed a high-fat diet for 12 weeks to induce obesity, then urine was collected and an 8-week CR regimen (30% decrease in energy intake) initiated. At study completion, mice were rank-ordered according to their percent body weight change, with mice in the extreme quartiles deemed CR responders (n = 67) versus nonresponders (n = 67). Targeted semi-quantitative metabolomics identified elevated glutamic acid and hydroxyproline as key urinary metabolites that distinguish CR responders from CR nonresponders, independent of sex. Three urinary metabolites (glutamic acid, hydroxyproline, and putrescine) distinguished male CR responders from nonresponders. Six metabolites (glutamic acid, hydroxyproline, dopamine, histamine, lysine, and spermine) distinguished female CR responders from nonresponders. Multivariate receiver operating characteristic analyses integrated these metabolites to reveal potential sex specific and sex-independent associations of CR-mediated weight loss. Further, pathway analysis identified several metabolic pathways, including arginine and proline metabolism, and alanine, aspartate, and glutamate biosynthesis, that distinguished CR responders from nonresponders and could be indicative of metabolic reprogramming to enhance insulin sensitivity and energy metabolism.
Journal Article
امرأة الضابط الفرنسي
يمكن اعتبار رواية \"امرأة الضابط الفرنسي\" رواية ذكية تكشف عن استفادة الكاتب الحديث من الموروث الفكتوري وبهذا تصبح رواية ليبراليى معمارها يقوم في الأساس على أساليب الواقعية الأخلاقية والتأويل الأخلاقي الذي ينتمي إلى أسلوب القرن التاسع عشر وبهذا فإن الرواية توسع مدى البصيرة الأخلاقية والوعي الاجتماعي الذي نحصل عليه من قراءة جورج إليوت على سبيل المثال، ليصبح مضافا إلى شكل أكثر حداثة من أشكال التصور تساعدنا في ذلك المعرفة التاريخية المتزايدة والمشاعر الطيبة الفياضة.
BOOK
Hydroxyl airglow observations for investigating atmospheric dynamics: results and challenges
Measurements of hydroxyl (OH*) airglow intensity are a straightforward and cost-efficient method which allows the derivation of information about the climate and dynamics of the upper mesosphere/lower thermosphere (UMLT) on different spatiotemporal scales during darkness. Today, instrument components can be bought “off-the-shelf” and developments in detector technology allows operation without cooling, or at least without liquid nitrogen cooling, which is difficult to automate. This makes instruments compact and suitable for automated operation. Here, we briefly summarize why an OH* airglow layer exists, how atmospheric dynamics influence it and how temperature can be derived from OH* airglow measurements. Then, we provide an overview of the scientific results regarding atmospheric dynamics (mainly gravity waves (GWs) but also planetary waves (PWs) and infrasound) achieved with OH* airglow measurements. We focus on long-term ground-based OH* airglow measurements or airglow measurements using a network of ground-based instruments. The paper includes further results from global or near-global satellite-based OH* airglow measurements, which are of special importance for characterizing the OH* airglow layer. Additionally, the results from the very few available airborne case studies using OH* airglow instruments are summarized. Scientific and technical challenges for the next few years are described.
Journal Article
Charisma's Birth from the Bottom Up: Lula, ABC's Metalworkers’ Strikes and the Social History of Brazilian Politics
If David Bell in his book Men on Horseback (2020) focuses on what is political charisma, how it functions, and what it means ‘to write its history’, this article examines how Brazil's ex-President Luís Inácio Lula da Silva (‘Lula’) acquired charisma during the dramatic 1978–80 metalworkers’ strikes in the industrial ABC region of São Paulo, Brazil. While generating a vast literature, scholars of the ABC strikes have evaded the question of how Lula, the gifted organiser, emerged as a recognisably charismatic figure. This article explains where, when and why this happened and how a charismatic bond was forged as 100,000 stigmatised, fearful, self-doubting ‘peons’ came to constitute themselves as a locally articulated social actor, a group in fusion, whose boldness and creativity led to extraordinary feats of organisation and mobilisation. Arguing against conflating charisma and populism, it also establishes the utility of the theorisation of group-making advanced in the Critique of Dialectical Reason (1960) by Jean-Paul Sartre.
Journal Article
From Dictatorship to the Brazilian New Republic in Crisis
Political biography is said to be “the disciplinary poor relation to the study of political science more generally,” and few would agree that, without biography, the discipline risks being “‘a form of taxidermy” (Arklay 2006, 17, 15). [...]it’s an honor that LAPS editors Alfred Montero and Juan Pablo Luna judged my biography worthy of a roundtable with stimulating commentaries by political scientists whose work I admire and have long relied on. Curiously enough, Lula’s particular role(s) and contribution(s) were also slighted in the vast literature on the New Unionism, the PT, and even his presidential campaigns, which focus on party strategy and platforms, internal ideological disputes, public opinion polling, political advertising, and voting patterns. When he was replaced by his vice presidential candidate, Fernando Haddad, a former PT minister and mayor of São Paulo, observers wondered “if Lula would be able to transfer his electoral capital to Haddad, who was unknown in most of the country, in that short, one-month period” (Rennó 2020, 6). With dozens of prosecutions subsequently abandoned, Lula was free to run for president again with a substantial lead in the polls in an election scheduled for when this roundtable will appear! A Biographical Study of Political Leadership Margaret Keck describes Lula and His Politics of Cunning as “about Lula as a leader and not about the party he led.”
Journal Article