Organic Crop Production Overview

This publication provides an overview of the key concepts and practices of certified organic crop production. It also presents perspectives on many of the notions, myths, and issues that have become associated with organic agriculture over time. A guide to useful ATTRA resources and to several non-ATTRA publications is provided

Crash, Boom, Bang - reload: Metamorphosen eines Softwareprojekts in Zeiten des New Economy-Hypes

In diesem Essay werden die Metamorphosen eines Software-Projekts nachgezeich-net, das von der choice mobilitätsproviding GmbH initiiert wurde. Das Ziel des Vor-habens war, die informationstechnische Unterstützung für eine Dienstleistung des Integrierten Verkehrs bereit zu stellen. Das Papier verfolgt die drastischen Volten im Projekt, welche in Folge des Anpassungsdrucks an sich permanent ändernde Umweltbedingungen vorgenommen wurden. Das Projekt kann als Fallstudie des Auf-stiegs und Niedergangs der New Economy angesehen werden: Zunächst war da eine gute Idee von enthusiastischen Gründern. Dann brach der Internet-Boom aus und es konnte eine beträchtliche Summe Geld für die Realisierung der neuen Software akquiriert werden. Wenig später tauchten die Glücksritter der New Economy auf und transformierten die anwenderspezifische Mittelstands-Software in eine Big-Busi-ness-Application. Dafür benötigten sie immer mehr Geld. Schließlich kam der große Knall. Die New Economy-Blase platzte, und nachdem die ausführende Software-Firma beinahe bankrott gegangen wäre, stellte sie alle Arbeiten daran ein. Das Millionen-projekt endete als Datentorso. Trotzdem gab es für das Projekt ein Leben nach dem Tod.This essay analyzes the process of a software-project launched by the choice mobility providing company. The project's purpose centered around creating suitable information technology (IT) to integrate different means of transportation. The paper traces the changes the project underwent due to the successions of startling rup-tures within the business environment. The project could serve as a case study for the decline of the New Economy. First, a good idea emerged that was promoted by enthusiastic founders. Next, during the time of the internet boom, considerable financial support was poured into the project. The soldiers of fortune appeared and completely changed the character of the project. The new driving force transformed the project from a small, customer-related application into a big business case. This required more money. The project collapsed during the big bang of the new economy bubble, thereby affecting the executing firm. The IT-company reached a near-bankrupt and the project ended in ruins. Nevertheless the project could be reanimated under newly changed condition

Crash, Boom, Bang - reload: Metamorphosen eines Softwareprojekts in Zeiten des New Economy-Hypes

In diesem Essay werden die Metamorphosen eines Software-Projekts nachgezeich-net, das von der choice mobilitätsproviding GmbH initiiert wurde. Das Ziel des Vor-habens war, die informationstechnische Unterstützung für eine Dienstleistung des Integrierten Verkehrs bereit zu stellen. Das Papier verfolgt die drastischen Volten im Projekt, welche in Folge des Anpassungsdrucks an sich permanent ändernde Umweltbedingungen vorgenommen wurden. Das Projekt kann als Fallstudie des Auf-stiegs und Niedergangs der New Economy angesehen werden: Zunächst war da eine gute Idee von enthusiastischen Gründern. Dann brach der Internet-Boom aus und es konnte eine beträchtliche Summe Geld für die Realisierung der neuen Software akquiriert werden. Wenig später tauchten die Glücksritter der New Economy auf und transformierten die anwenderspezifische Mittelstands-Software in eine Big-Busi-ness-Application. Dafür benötigten sie immer mehr Geld. Schließlich kam der große Knall. Die New Economy-Blase platzte, und nachdem die ausführende Software-Firma beinahe bankrott gegangen wäre, stellte sie alle Arbeiten daran ein. Das Millionen-projekt endete als Datentorso. Trotzdem gab es für das Projekt ein Leben nach dem Tod. -- This essay analyzes the process of a software-project launched by the choice mobility providing company. The project's purpose centered around creating suitable information technology (IT) to integrate different means of transportation. The paper traces the changes the project underwent due to the successions of startling rup-tures within the business environment. The project could serve as a case study for the decline of the New Economy. First, a good idea emerged that was promoted by enthusiastic founders. Next, during the time of the internet boom, considerable financial support was poured into the project. The soldiers of fortune appeared and completely changed the character of the project. The new driving force transformed the project from a small, customer-related application into a big business case. This required more money. The project collapsed during the big bang of the new economy bubble, thereby affecting the executing firm. The IT-company reached a near-bankrupt and the project ended in ruins. Nevertheless the project could be reanimated under newly changed conditions

Pseudoscalar top-Higgs coupling: Exploration of CP\mathrm{CP}-odd observables to resolve the sign ambiguity

We present a collection of $\mathrm{CP}$-odd observables for the process $pp\to t\,\left(\rightarrow b {\ell}^+ \nu_{\ell}\right) \bar{t}\,\left(\rightarrow \bar{b} {\ell}^-{\bar{\nu}}_{\ell}\right)\,H$ that are linearly dependent on the scalar ($\kappa_t$) and pseudoscalar ($\tilde{\kappa}_t$) top-Higgs coupling and hence sensitive to the corresponding relative sign. The proposed observables are based on triple product (TP) correlations that we extract from the expression for the differential cross section in terms of the spin vectors of the top and antitop quarks. In order to explore other possibilities, we progressively modify these TPs, first by combining them, and then by replacing the spin vectors by the lepton momenta or the $t$ and $\bar{t}$ momenta by their visible parts. We generate Monte Carlo data sets for several benchmark scenarios, including the Standard Model ($\kappa_t=1$, $\tilde{\kappa}_t=0$) and two scenarios with mixed $\mathrm{CP}$ properties ($\kappa_t=1$, $\tilde{\kappa}_t=\pm 1$). Assuming an integrated luminosity that is consistent with that envisioned for the High Luminosity Large Hadron Collider, using Monte Carlo-truth and taking into account only statistical uncertainties, we find that the most promising observable can disentangle the "$\mathrm{CP}$-mixed" scenarios with an effective separation of $\sim 19\sigma$. In the case of observables that do not require the reconstruction of the $t$ and $\bar{t}$ momenta, the power of discrimination is up to $\sim 13\sigma$ for the same number of events. We also show that the most promising observables can still disentangle the $\mathrm{CP}$-mixed scenarios when the number of events is reduced to values consistent with expectations for the Large Hadron Collider in the near term.Comment: 28 pages, 7 figures. Published versio

Extension of effort for lunar flight handbook detailed technical report

Lunar flight handbook - orbital departure windows, libration points, and lunar flight orbit estimation, theory, and operation

Electronic structure of REREAuMg and REREAgMg (RERE = Eu, Gd, Yb)

We have investigated the electronic structure of the equiatomic EuAuMg, GdAuMg, YbAuMg and GdAgMg intermetallics using x-ray photoelectron spectroscopy. The spectra revealed that the Yb and Eu are divalent while the Gd is trivalent. The spectral weight in the vicinity of the Fermi level is dominated by the mix of Mg $s$, Au/Ag $sp$ and $RE$ $spd$ bands, and not by the $RE$ $4f$. We also found that the Au and Ag $d$ bands are extraordinarily narrow, as if the noble metal atoms were impurities submerged in a low density $sp$ metal host. The experimental results were compared with band structure calculations, and we found good agreement provided that the spin-orbit interaction in the Au an Ag $d$ bands is included and correlation effects in an open $4f$ shell are accounted for using the local density approximation + Hubbard $U$ scheme. Nevertheless, limitations of such a mean-field scheme to explain excitation spectra are also evident.Comment: 4 pages, 3 figures, Brief Repor

Flow-Design and Event-Based Components: A New Approach in Designing Software Compared to Established Procedures

Flow-Design is a new approach in developing software architectures. Flow-Design focuses on data processing function units and the communication among them. Event-Based Components represent a programming language independent methodology for implementing Flow-Design and can also be considered as a resulting software architecture. The Event-Based Components software architecture is structured by components that communicate via events. Therefore it is compared to the concept of service-oriented architecture and event-driven architecture which aim to create independent components as well. In conclusion Flow-Design and Event-Based Components provide a platform and programming language independent concept to develop software components. The resulting components are reusable, maintainable and testable. Although it can lead to a more complex coding