Subsidizing Migration? Mexican Agricultural Policies and Migration to the United States

Migration theories often ignore the role that states play in stimulating migration through public assistance policies. Using the case of Mexico, this article explores the role of the state as a migrant‐producing actor by examining the relationship between migration and social assistance policies in the form of monetary cash transfers. It argues that direct, unconditional cash transfers, like those provided by agricultural programs such as Procampo, rather than providing the incentives needed to retain individuals in their home country, may instead be providing the resources needed to migrate, particularly if the amount of the transfer is insufficient to spur investment. Instead of discouraging migration by enhancing economic opportunities and reducing poverty, such policies can actually make it easier and more appealing for its beneficiaries to migrate.     

Simon McBurney’s Ambitious Pursuit of the Pure Maths Play

Abstract

When Simon McBurney set out to create a play about the fabled relationship between Cambridge mathematician G. H. Hardy and the self-taught Indian genius Srinivasa Ramanujan, he was immediately confronted by the question of how to engage the mathematics authentically. Undaunted by his own uneasiness with the subject, McBurney incorporated a host of experts into the rehearsal process, calling on mathematical educators, expositors, and Fields medalists to come work with the company. While on the surface maths and drama make an incongruous pair, the result was a vibrant collaboration. The final product — the award-winning play A Disappearing Number — shines an interesting light on the surprising similarity between the creative process in mathematics and the creative process in theatre, especially as manifested by the company at Complicite.     

Walking a Fine Scientific Line: The Extraordinary Deeds of Dutch Neuroscientist C. U. Ariëns Kappers Before and During World War II

Dutch neuroscientist Cornelius Ubbo Ariëns Kappers is famous for pioneering neuroembryological work and for establishing the Amsterdam Central Institute for Brain Research. Less well known is his anthropological work, which ultimately played a role in saving Dutch Jews from deportation to their deaths during the Holocaust. Ariëns Kappers extensively campaigned against anti-Semitism and Nazi persecution during the 1930s. During World War II, he utilized his credentials to help create anthropological reports “proving” full-Jews were “actually” partial- or non-Jews to evade Nazi criteria, and at least 300 Jews were thus saved by Ariëns Kappers and colleagues. His earlier work demonstrating differences between Ashkenazic and Sephardic Jewish skull indices became the focus of an attempt to save hundreds of Dutch Portuguese Jews collectively from deportation. Ariëns Kappers and colleagues brilliantly understood how anthropology and neuroscience could be utilized to make a difference and to save lives during a tragic era.     

贵州基本建设考古初探

基本建设考古是当前考古工作的重要组成,在国家经济建设大背景下,是一项长期艰巨的任务。本文对贵州基本建设考古历程、成果、状况进行梳理,提出问题与对策,力促此项工作顺利开展。     

“长江口二号”沉船出水青花瓷中的污染物研究

位于长江入海口的“长江口二号”清代沉船是中国目前发现的保存最为完整的古代木制沉船之一，已于2022年11月完成整体打捞。在进行水下考古调查时，沉船出水的部分青花瓷出现的病害现象引起了考古工作者的关注，特别是裂纹中黑色污染物及表面铁锈状污染物对文物的外观产生了很大影响。本工作选取了三件具有典型被污染特征的青花瓷标本作为代表，使用能量色散X射线荧光分析(EDXRF)、光学显微镜(OM)、X射线衍射分析(XRD)、拉曼光谱分析(Raman)和扫描电子显微镜-能谱分析(SEM-EDS)等方法，对污染物进行了研究，探讨了其形成原因以及环境的影响作用，并对其潜在危害进行了分析。研究表明，污染物主要以方解石、菱铁矿等碳酸盐以及铁的氧化物、氢氧化物和硫化物为主。长期处于河口淤泥中的还原性环境是导致菱铁矿和亚稳的铁硫化物形成的原因，船体中铁质构件腐蚀对局部环境的污染是重要的影响因素，这也反映出被污染的青花瓷所处位置和环境的特殊性。出水的部分青花瓷釉中裂纹的形态表明其形成是由物理撞击造成，而釉中硅灰石晶体的选择性腐蚀会导致腐蚀坑的形成，裂纹和腐蚀坑均为外部污染物进入釉层内部提供了通道，导致瓷器劣化。出水后...     

Das erste Jahrhundert deutschsprachiger meteorologischer Lehrbücher

Sequences of text books published during a longer time span offer the opportunity to describe the development and forming of scientific disciplines. Here, the forming of meteorology as a separate discipline is analysed from German textbooks published between 1803 and 1901. This first century of meteorological textbooks can be divided into three phases: (1) a phase of the final definition of meteorology as a discipline within physics (1800–1840), (2) a phase which sees meteorology as an established part of physics (1839–1870), and (3) a phase of further developments within meteorology on the basis of the theoretical equations of hydrodynamics (1875–1901) during which meteorology finally forms as a separate discipline. In phase 1, meteorological textbooks were written by physicists, mathematicians, and other natural scientists. In phase 2, the textbooks were based nearly completely on Pouillet's textbook on physics and meteorology, and finally in phase 3, meteorologoical textbooks were written by meteorologists. The Germanlanguage meteorological textbooks from 1803 to 1901 are listed in Table 1. These books document the shaking off of old views in the beginning of the 19^th century, the establishment of meteorology as a separate discipline in natural sciences in the middle of that century, and the beginning of a specialisation within meteorology at the end of that century.     

Idealistisch geprägte Axiomatik des Selbstorganisationsparadigmas

The essay shows that the axiomatics of the systemic‐cybernetic‐biological theory of self‐organization by Humberto Maturana and Francisco Varela have their roots in the philosophy of German Idealism. Especially the completely subject‐centered philosophy of Johann Gottlieb Fichte already contains the central axiomatics of Maturana and Varela.     

Die Grippe‐Pandemie 1918–20 in der medizinischen Debatte

The Influenza Pandemic of 1918–20 in medical debate. The history of the so called Spanish Influenza 1918–1920 is summarized especially in regard to the developments in medical debate. In Germany, Richard Pfeiffer, who had discovered Haemophilus influenzae after the previous pandemic 1890 / 91, managed it to defend his thesis that his “bacillus” was the causative agent of the flu, by modifying his theory moderately. The Early Virology of influenza in postwar times was still fixed to bacteriology and did not yet have the force of school‐building. Aggressive therapy, e.g. with derivatives of chinine, were used in a concept of polypragmasy. The connection between influenza in animals and influenza in mankind was unknown or of no major interest till the rise of virology as an academic discipline in the 1950s. Since the outbreak of avian influenza in Asia 1997 virological archaeology is challenged to fill the historical part in the attempt to fight the threat of the highly pathogenic bird flu. In the beginning of the “short 20. century” politicians and doctors had no interest to build a “monument” of influenza. Today, virological reductionism does not have the power to (re‐)construct such a monument.