Economic Agendas in Civil Wars: What We Know, What We Need to Know

civil war, conflict prevention, human security

Economic agendas in civil wars: what we know, what we need to know

The political economy of civil wars has acquired unprecedented scholarly and policy attention. Among others, the International Peace Academy’s programme on Economic Agendas in Civil Wars (EACW) has aimed to contribute to a better understanding of the complex dynamics of civil war economies and has identified areas for policy development critical for improved conflict prevention, conflict resolution, and postconflict peacebuilding. While much of the earlier debate on the economic dimensions has been polarized around the ‘greed versus grievance’ dichotomy, there is now a better understanding of how economic dynamics can influence the onset, character, and duration of armed conflicts. This paper discusses key research findings and their policy relevance, provides a preliminary assessment of policy efforts to address the economic dimensions of conflict and conflict transformation, and offers some issues for further research and policy action

Spermiogramm und Seminalplasma: Der andrologische Faktor

Zusammenfassung: Das Spermiogramm liefert als wenig standardisierte Methode nur grobe Informationen zur Diagnostik männlicher Subfertilität. Daher sollte außer bei hoch pathologischen Werten das Spermiogramm nicht als alleinige Entscheidungsgrundlage für die Therapie dienen. Therapeutisch können neben der ICSI (intrazytoplasmatische Spermieninjektion) bei einer männlichen Infertilität auch mit intrauterinen Inseminationen gute Ergebnisse erzielt werden. In Fällen, bei denen selbst die ICSI-Methode versagt, scheint die IMSI-Technik (intrazytoplasmatische, morphologische selektierte Spermieninjektion) vielversprechend zu sein. Unabhängig von der Behandlungsmethode ist es von entscheidender Bedeutung, eine möglichst gute Samenprobe zu gewinnen. Dabei ist es möglich, mit einfachen Methoden wie einer Verkürzung der Abstinenzzeit oder einer Probengewinnung zu Hause die Samenqualität entscheidend zu verbessern. Neueste Erkenntnisse zeigen, dass die Anwendung von Seminalplasma in der Reproduktionsmedizin das Endometrium rezeptiver macht und somit die Implantation des Embryos unterstützen kann. Auch Geschlechtsverkehr um den Zeitpunkt des Embryotransfers scheint die Behandlung positiv zu beeinflusse

Elementary laser-less quantum logic operations with (anti-)protons in Penning traps

Static magnetic field gradients superimposed on the electromagnetic trapping potential of a Penning trap can be used to implement laser-less spin-motion couplings that allow the realization of elementary quantum logic operations in the radio-frequency regime. An important scenario of practical interest is the application to $g$-factor measurements with single (anti-)protons to test the fundamental charge, parity, time reversal (CPT) invariance as pursued in the BASE collaboration [Smorra et al., Eur. Phys. J. Spec. Top. 224, 3055-3108 (2015), Smorra et al., Nature 550, 371-374 (2017), Schneider et al., Science 358, 1081-1084 (2017)]. We discuss the classical and quantum behavior of a charged particle in a Penning trap with a superimposed magnetic field gradient. Using analytic and numerical calculations, we find that it is possible to carry out a SWAP gate between the spin and the motional qubit of a single (anti-)proton with high fidelity, provided the particle has been initialized in the motional ground state. We discuss the implications of our findings for the realization of quantum logic spectroscopy in this system.Comment: 10 pages, 4 figures, 1 table; published versio

Quantum logic inspired techniques for spacetime-symmetry tests with (anti-)protons

Cosmological observations as well as theoretical approaches to physics beyond the standard model provide strong motivations for experimental tests of fundamental symmetries, such as CPT invariance. In this context, the availability of cold baryonic antimatter at CERN has opened an avenue for ultrahigh-precision comparisons of protons and antiprotons in Penning traps. This work discusses an experimental method inspired by quantum logic techniques that will improve particle localization and readout speed in such experiments. The method allows for sympathetic cooling of the (anti-)proton to its quantum-mechanical ground state as well as the readout of its spin alignment, replacing the commonly used continuous Stern–Gerlach effect. Both of these features are achieved through coupling to a laser-cooled 'logic' ion co-trapped in a double-well potential. This technique will boost the measurement sampling rate and will thus provide results with lower statistical uncertainty, contributing to stringent searches for time dependent variations in the data. Such measurements ultimately yield extremely high sensitivities to CPT violating coefficients acting on baryons in the standard-model extension, will allow the exploration of previously unmeasured types of symmetry violations, and will enable antimatter-based axion-like dark matter searches with improved mass resolution

Nurses' perceptions of aids and obstacles to the provision of optimal end of life care in ICU

Contains fulltext : 172380.pdf (publisher's version ) (Open Access