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“A very significant contribution. . . . This book tells a story that is usually left out of the master narrative of the history of exploration. . . . Moreover, it tells a story based on real expeditions and experiences, and it quotes liberally and effectively from engaging reports and sixteenth-century treatises, so it should appeal to general readers as well.” -Carla Rahn Phillips, Union Pacific Professor in Comparative Early Modern History, University of Minnesota As Spain colonized the Americas during the sixteenth century, Spanish soldiers, bureaucrats, merchants, adventurers, physicians, ship pilots, and friars explored the natural world, gathered data, drew maps, and sent home specimens of America's vast resources of animals, plants, and minerals. This amassing of empirical knowledge about Spain's American possessions had two far-reaching effects. It overturned the medieval understanding of nature derived from Classical texts and helped initiate the modern scientific revolution. And it allowed Spain to commodify and control the natural resources upon which it built its American empire. In this book, Antonio Barrera-Osorio investigates how Spain's need for accurate information about its American colonies gave rise to empirical scientific practices and their institutionalization, which, he asserts, was Spain's chief contribution to the early scientific revolution. He also conclusively links empiricism to empire-building as he focuses on five areas of Spanish activity in America: the search for commodities in, and the ecological transformation of, the New World; the institutionalization of navigational and information-gathering practices at the Spanish Casa de la Contratación (House of Trade); the development of instruments and technologies for exploiting the natural resources of the Americas; the use of reports and questionnaires for gathering information; and the writing of natural histories about the Americas.

In 1830, with France's colonial empire in ruins, Charles X ordered his army to invade Ottoman Algiers. Victory did not salvage his regime from revolution, but it began the French conquest of Algeria, which was continued and consolidated by the succeeding July Monarchy. InBy Sword and Plow, Jennifer E. Sessions explains why France chose first to conquer Algeria and then to transform it into its only large-scale settler colony. Deftly reconstructing the political culture of mid-nineteenth-century France, she also sheds light on policies whose long-term consequences remain a source of social, cultural, and political tensions in France and its former colony. In Sessions's view, French expansion in North Africa was rooted in contests over sovereignty and male citizenship in the wake of the Atlantic revolutions of the eighteenth century. The French monarchy embraced warfare as a means to legitimize new forms of rule, incorporating the Algerian army into royal iconography and public festivals. Colorful broadsides, songs, and plays depicted the men of the Armée d'Afrique as citizen soldiers. Social reformers and colonial theorists formulated plans to settle Algeria with European emigrants. The propaganda used to recruit settlers featured imagery celebrating Algeria's agricultural potential, but the male emigrants who responded were primarily poor, urban laborers who saw the colony as a place to exercise what they saw as their right to work. Generously illustrated with examples of this imperialist iconography, Sessions's work connects a wide-ranging culture of empire to specific policies of colonization during a pivotal period in the genesis of modern France. In 1830, with France's colonial empire in ruins, Charles X ordered his army to invade Ottoman Algiers. Victory did not salvage his regime from revolution, but it began the French conquest of Algeria, which was continued and consolidated by the succeeding July Monarchy. InBy Sword and Plow, Jennifer E. Sessions explains why France chose first to conquer Algeria and then to transform it into its only large-scale settler colony. Deftly reconstructing the political culture of mid-nineteenth-century France, she also sheds light on policies whose long-term consequences remain a source of social, cultural, and political tensions in France and its former colony. In Sessions's view, French expansion in North Africa was rooted in contests over sovereignty and male citizenship in the wake of the Atlantic revolutions of the eighteenth century. The French monarchy embraced warfare as a means to legitimize new forms of rule, incorporating the Algerian army into royal iconography and public festivals. Colorful broadsides, songs, and plays depicted the men of the Armée d'Afrique as citizen soldiers. Social reformers and colonial theorists formulated plans to settle Algeria with European emigrants. The propaganda used to recruit settlers featured imagery celebrating Algeria's agricultural potential, but the male emigrants who responded were primarily poor, urban laborers who saw the colony as a place to exercise what they saw as their right to work. Generously illustrated with examples of this imperialist iconography, Sessions's work connects a wide-ranging culture of empire to specific policies of colonization during a pivotal period in the genesis of modern France.

يدخل هذا الكتاب في صميم الاهتمامات الهادفة إلى التعريف بالتاريخ المحلي لمدينة تيارت، فلا يمكننا فهم الحاضر دون الرجوع إلى الماضي واستيعاب ما يحتويه من أحداث وبه نستقرأ المستقبل، إذ تهدف الكاتبة في هذا الكتاب إلى محاولة التركيز على خصوصية منطقة تيارت ومساهمة شخصياته في تطور الأحداث في مواجهة الاستعمار الفرنسي من الفترة 1936-1954.

To provide a contemporary global prevalence of mental health issues among the general population amid the coronavirus disease-2019 (COVID-19) pandemic. We searched electronic databases, preprint databases, grey literature, and unpublished studies from January 1, 2020, to June 16, 2020 (updated on July 11, 2020), with no language restrictions. Observational studies using validated measurement tools and reporting data on mental health issues among the general population were screened to identify all relevant studies. We have included information from 32 different countries and 398,771 participants. The pooled prevalence of mental health issues amid the COVID-19 pandemic varied widely across countries and regions and was higher than previous reports before the COVID-19 outbreak began. The global prevalence estimate was 28.0% for depression; 26.9% for anxiety; 24.1% for post-traumatic stress symptoms; 36.5% for stress; 50.0% for psychological distress; and 27.6% for sleep problems. Data are limited for other aspects of mental health issues. Our findings highlight the disparities between countries in terms of the poverty impacts of COVID-19, preparedness of countries to respond, and economic vulnerabilities that impact the prevalence of mental health problems. Research on the social and economic burden is needed to better manage mental health problems during and after epidemics or pandemics. Systematic review registration : PROSPERO CRD 42020177120.

We developed computational models to predict the emergence of depression and Post-Traumatic Stress Disorder in Twitter users. Twitter data and details of depression history were collected from 204 individuals (105 depressed, 99 healthy). We extracted predictive features measuring affect, linguistic style, and context from participant tweets (N = 279,951) and built models using these features with supervised learning algorithms. Resulting models successfully discriminated between depressed and healthy content, and compared favorably to general practitioners’ average success rates in diagnosing depression, albeit in a separate population. Results held even when the analysis was restricted to content posted before first depression diagnosis. State-space temporal analysis suggests that onset of depression may be detectable from Twitter data several months prior to diagnosis. Predictive results were replicated with a separate sample of individuals diagnosed with PTSD (N users  = 174, N tweets  = 243,775). A state-space time series model revealed indicators of PTSD almost immediately post-trauma, often many months prior to clinical diagnosis. These methods suggest a data-driven, predictive approach for early screening and detection of mental illness.

يتناول الكتاب \"الجزائر في مواجهة الاستعمار الفرنسي\" حيث تعرضت الجزائر سنة 1830 الى اخطر اشكال الاستعمار وهو الاستعمار الاستيطاني الفرنسي والذي قامت سياسته على ( الفرنسة-التنصير-الاندماج)، ومع مطلع القرن العشرين فكر الشعب الجزائري في تغيير اسلوب كفاحه المسلح الذي تعدى السبعون عام ليأخذ الصبغة السلمية السياسية، ولعل اهم الحركات التي ظهرت منتصف ثلاثينات القرن الماضي نجد الكشافة الاسلامية الجزائرية كحركة وطنية تناضل دفاعا عن الشخصية الجزائرية.

Several common psychiatric and neurodegenerative diseases share epidemiologic risk; however, whether they share pathophysiology is unclear and is the focus of our investigation. Using 25 GWAS results and LD score regression, we find eight significant genetic correlations between psychiatric and neurodegenerative diseases. We integrate the GWAS results with human brain transcriptomes ( n  = 888) and proteomes ( n  = 722) to identify cis - and trans - transcripts and proteins that are consistent with a pleiotropic or causal role in each disease, referred to as causal proteins for brevity. Within each disease group, we find many distinct and shared causal proteins. Remarkably, 30% (13 of 42) of the neurodegenerative disease causal proteins are shared with psychiatric disorders. Furthermore, we find 2.6-fold more protein-protein interactions among the psychiatric and neurodegenerative causal proteins than expected by chance. Together, our findings suggest these psychiatric and neurodegenerative diseases have shared genetic and molecular pathophysiology, which has important ramifications for early treatment and therapeutic development. Studying the shared genetic etiology of disease can help improve diagnosis and treatment. Here, the authors find evidence for shared genetic and molecular pathophysiology between several common psychiatric and neurodegenerative diseases using results of 25 GWAS and large-scale human brain transcriptomic and proteomic sequencing.