Die Sondersammelgebietsbibliothek Heidelberg: ein zeitlicher Überblick über die Förderung der Universitätsbibliothek durch die Notgemeinschaft der Deutschen Wissenschaft von 1921 bis 1960

Einen geschichtlichen Überblick über das Sondersammelgebiet der Universitätsbibliothek Heidelberg steht aus. Die Studie widmet sich dem Thema und zeigt am Beispiel der Universitätsbibliothek Heidelberg die Formen der Wissenschaftsförderung durch die Notgemeinschaft der Deutschen Wissenschaft. Der zeitliche Schwerpunkt liegt dabei auf der Periode von 1920 bis 1960. Nach 1921 entwickelte die Deutsche Notgemeinschaft zur Förderung des Wissenschaftssektors das System der Universitätsbibliotheken mit Sondersammelgebieten aus. Der Universitätsbibliothek Heidelberg wurde durch die Notgemeinschaft im Jahr 1922 die Pflege des Sondersammelgebiets Astronomie, Ägyptologie und Epigraphik zugeteilt. Mehr durch ein Versehen als durch aktive Bestrebungen seitens der Universitätsbibliothek wurde ihr im Jahr 1926 Klassische Archäologie, eingeschlossen Ägyptologie, und Kunstgeschichte zur Pflege anvertraut. Mit dem Ende des 2. Weltkrieges und der Gründung der Bundesrepublik Deutschland wurde das Sondersammelgebietssystem der Notgemeinschaft und auch die Wissenschaftsorganisation selbst wieder gegründet

AAH Cage Out-Link and In-Link Antenna Characterization

This final report encapsulates the accomplishments of the third year of work on an Advanced Biotelemetry System (ABTS). Overall MU/ABTS project objectives are to provide a biotelemetry system that can collect data from and send commands to an implanted biotransceiver. This system will provide for studies of rodent development in space. The system must be capable of operating in a metal animal cage environment. An important goal is the development of a small, "smart", micropower, -channel data output and single channel command implantable biotransceiver with eight input capabilities with the flexibility for easy customization for a variety of physiologic investigations. The NASA Ames/Marquette University Joint Research work has been devoted to the system design of such a new state of the art biotelemetry system, having multiple physiologic inputs, and bi-directional data transfer capabilities. This work has provided a successful prototype system that connects, by two-way radio links, an addressable biotelemetry system that provides communication between an animal biotelemeter prototype and a personal computer. The operational features of the prototype system are listed below: Two-Way PCM Communication with Implanted Biotelemeter Microcontroller Based Biotelemeter Out-Link: Wideband FSK (60 kbaud) In-Link: OOK (2.4 kbaud) Septum Antenna Arrays (In/Out-Links) Personal Computer Data Interface The important requirement of this third year's work, to demonstrate two-way communication with transmit and receive antennas inside the metal animal cage, has been successfully accomplished. The advances discussed in this report demonstrate that the AAH cage antenna system can provide Out-link and In-link capability for the ABTS bi-directional telemetry system, and can serve as a benchmark for project status

Radio Links for the NASA ABTS

The closed loop prototype has operational bi-directional wireless links. The Wideband PCM-FSK receiver has been designed and characterized. Now that both links function, communication performance can be addressed. For example, noise problems with the received outlink signal that caused the PC program to lockup were just recently revealed and minimized by software "enhancements" to the Windows based PC program. A similar problem with inlink communication was uncovered several days before this report: A noise spike or dropout (expected events in the animal Habitat) caused an interrupt to the implant microcontroller which halted outlink transmission. Recovery of outlink transmission did not reliably occur. The problem has been defined and implant software is being modified to better recognize noise from data by changing the timing associated with valid data packet identification and by better utilizing the error flags generated by the microcontroller's SCI circuits. Excellent inlink performance will also require improvements in the implant's receiver. The biggest performance improvement can be provided by antenna design for the Habitat. The quarter wavelength whip antennas used with the demo prototype inlink leave much to be desired

Memory effect of Mn5_5Ge3_3 nanomagnets embedded inside a Mn-diluted Ge matrix

Crystalline Mn5Ge3 nanomagnets are formed inside a Mn-diluted Ge matrix using Mn ion implantation. A temperature-dependent memory effect and slow magnetic relaxation are observed below the superparamagnetic blocking temperature of Mn5Ge3. Our findings corroborate that the observed spin-glass-like features are caused by the size distribution of Mn5Ge3 nanomagnets, rather than by the inter-particle interaction through the Mn-diluted Ge matrix.Comment: 10 pages, 4 figures,. submitted to Appl. Phys. Let

Wachstum von Praseodymoxid auf Silizium (111) und (113)

Alternative gateoxide Pr2O3 : Growth characterization on Si (111) and Si (113) Several investigations have been made to desricbe the interface structure of this oxide on Si(111). These studies [Tarsa et al., Müssig et al.] did show that the (001) plane of the hexagonal phase of Pr2O3 is growning on the Si(111) surface. Last year we reported about the p(1x1) observed in LEED. With gracing incidence x-ray diffraction measurements, we can now explain the bonding and positions of the Pr-Atoms and the orientation of the oxide parallel to the surface. Several evidences lead to the assumption, that the layer only occurs as a monolayer (= one unit cell of hexagonal Pr2O3 bulk phase along the c vector). Thicker layers observed in LEED, did not show any different reconstructions. In situ GIXRD measurments of thicker layers are underway. Postannealing up to 760°C of the thicker layers leads to Island growth and forming PrSi2. The therby seen p(2x2) reconstruction in LEED is formed from submonolayer coverage of Pr on Si (111). The growth on Si(113) is reported the first time. The depostion was made out of a tungsten or out of a mo-crucible at 500°C, like it was used for Si (111). After the depostion of 0.2 nm of Pr2O3 one can observe a change in the LEED pattern from the exhibited (3x1) or (3x2) reconstruction of Si (113) into a weak (4x1) pattern. AFM pictures show an ordering in on dimension and islands of triangular to trapezioid forms. The roughness is lower than the one, seen on the p(2x2) reconstructed surface. First GIXD measurements did not show any reconstructions peaks, which indicates that the pattern seen in Leed is coming from the oxygen ordering

Replication of Known Dental Characteristics in Porcine Skin: Emerging Technologies for the Imaging Specialist

This study demonstrates that it is sometimes possible to replicate patterns of human teeth in pig skin and determine scientifically that a given injury pattern (bite mark) correlates with the dentitions of a very small proportion of a population dataset, e.g., 5 percent or even 1 percent. The authors recommend building on the template of this research with a sufficiently large database of samples that reflects the diverse world population. They also envision the development of a sophisticated imaging software application that enables forensic examiners to insert parameters for measurement, as well as additional methods of applying force to produce bite marks for research. The authors further advise that this project is applied science for injury pattern analysis and is only foundational research that should not be cited in testimony and judicial procedures. It supplements but does not contradict current guidelines of the American Board of Forensic Odontology regarding bite mark analysis and comparisons. A much larger population database must be developed. The project’s methodology is described in detail, accompanied by 11 tables and 41 figures

Playing the identity card: stereotypes in European football

The amount of space ‘quality’ newspapers devote to football reflects its increasing importance in European culture. European print media discourse on football does more than cover the game’s technicalities, though; it also shapes its readers’ awareness of national identities. It is the aim of this study to analyse football match reports and articles from Britain, Spain, France and Germany with a view to understanding the mechanisms at work in the construction of national stereotypes. The language used by these articles is varied, entertaining, highly inventive and often provocative, evoking references to warfare, politics, history, economics and popular culture. In many cases, the principal elements of the stereotypes represented by the European press are the same from country to country (English fighting spirit, Spanish toughness, French flair, German efficiency). European print media discourse on football may, therefore, be said to reinforce myths of national character and strengthen notions of collective identity associated with sport

Surface Generated Acoustic Wave Biosensors for the Detection of Pathogens: A Review

This review presents a deep insight into the Surface Generated Acoustic Wave (SGAW) technology for biosensing applications, based on more than 40 years of technological and scientific developments. In the last 20 years, SGAWs have been attracting the attention of the biochemical scientific community, due to the fact that some of these devices - Shear Horizontal Surface Acoustic Wave (SH-SAW), Surface Transverse Wave (STW), Love Wave (LW), Flexural Plate Wave (FPW), Shear Horizontal Acoustic Plate Mode (SH-APM) and Layered Guided Acoustic Plate Mode (LG-APM) - have demonstrated a high sensitivity in the detection of biorelevant molecules in liquid media. In addition, complementary efforts to improve the sensing films have been done during these years. All these developments have been made with the aim of achieving, in a future, a highly sensitive, low cost, small size, multi-channel, portable, reliable and commercially established SGAW biosensor. A setup with these features could significantly contribute to future developments in the health, food and environmental industries. The second purpose of this work is to describe the state-of-the-art of SGAW biosensors for the detection of pathogens, being this topic an issue of extremely importance for the human health. Finally, the review discuses the commercial availability, trends and future challenges of the SGAW biosensors for such applications