Beachrockvorkommen im Korallenarchipel der Malediven: ein topographisch-morphologischer Geneseansatz

Seit mehreren Jahrzehnten findet eine intensive wissen-schaftliche Auseinandersetzung mit Beachrockvorkommen verschiedenster Lokalitäten statt. Der Forschungsschwerpunkt zur Ergründung von Bildungsmilieu und der bei der Genese beteiligten Prozessen, liegt auf der chemischen und mineralogischen Analyse des Beachrock, ohne dass dabei bis dato einheitliche Ergebnisse vorliegen. Die Analyse topo-graphischer und morphologischer Daten fand bislang nur selten Berücksichtigung. Basierend auf dieser Tatsache erschien es sinnvoll, Beachrockvorkommen stärker nach topographisch-morphologischen Gesichtspunkten zu analy-sieren um weitere Hinweise auf Prozesse und Milieu der Beachrockbildung zu erlangen. Entgegen der allgemein geltenden These der Beachrockbildung im Intertidal weisen die Ergebnisse der durchgeführten Analysen, allen voran die topographisch-morphologischen Auswertungen, eindeutig auf eine Genese im Supratidal hin. Dabei kann die Sedimentakkumulation durch hochenergetische Wellen als Einzelereignis oder als eine Abfolge einzelner, zeitlich versetzter und auch von der Auflaufrichtung her unterschiedlicher Wellenereignisse stattfinden

Manejo de la defoliación y fertilización nitrogenada en pasto llorón, Eragrostis curvula, cv. Tanganyka : 1-rendimiento de materia seca, digestibilidad in vitro y rendimiento de materia seca digestible

p.7-14En una pradera de pasto llorón ubicada en Argerich se estudió el efecto de dos tratamientos de defoliación y tres niveles de fertilización nitrogenada durante tres ciclos consecutivos. El forraje se cortó con una frecuencia de 35 cm de altura o acumulado, hasta el 20 de febrero (primavera-verano), y sus rebrotes otoñales se cortaron en invierno (diferido). En primavera-verano el corte a 35 cm, produjo en promedio más materia seca que el acumulado y en el diferido a la inversa. Sus totales anuales fueron similares. La fertilización aumentó los rendimientos promedios parciales y totales (P menor a 0,05). La digestibiüdad primavera-estival fue mayor con cortes a 35 cm que en el acumulado y ambos tratamientos de defoliación respondieron al nitrógeno pero en sus diferidos el efecto fue de pequeña magnitud. Los rendimientos de materia seca digestible siguieron la misma tendencia que los de materia seca aunque, por influencia primavera-estival, en el total anual el corte a 35 cm superó al acumulado (P menor a 0,05). El rebrote primaveral sólo mostró un efecto residual parcial del fertilizante

Effects of zilpaterol hydrochloride and zinc methionine on growth performance and carcass characteristics of beef bulls

Sixty beef bulls with a body weight (BW) of 314.79 16.2 kg were used to evaluate the effects of zilpaterol hydrochloride (ZH) and zinc methionine (ZM) on growth performance and carcass characteristics. The experimental design was a randomized complete block, with a factorial 22 arrangement of treatments (ZH: 0 and 0.15 mg kg 1 BW; ZM: 0 and 80 mg kg 1 dry matter). The ZH increased (PB0.05) the final BW, average daily gain, feed conversion, carcass yield and longissimus dorsi area. Bulls fed ZH plus ZM had less (PB0.01) backfat thickness and intramuscular fat (IMF) compared with those fed ZH or ZM alone. The ZH increased (PB0.02) the meat crude protein content and cooking loss. It is therefore concluded that ZH increases growth performance, carcass yield, longissimus dorsi area, and meat crude protein. The interaction of ZM and ZH did not present additional advantages. The reason for the reduction in backfat thickness and IMF by ZH plus ZM is unclear, and implies that our knowledge of b-agonistic adrenergic substances and their interactions with minerals is incomplete

Data from: Health IT, hacking, and cybersecurity: national trends in data breaches of protected health information

OBJECTIVE: The rapid adoption of health IT coupled with growing reports of ransomware and hacking has made cybersecurity a priority in healthcare. This study leverages federal data in order to better understand current cybersecurity threats in the context of health IT. MATERIALS AND METHODS: Retrospective observational study of all available reported data breaches in the United States from 2013-2017, downloaded from a publicly available federal regulatory database. RESULTS: There were 1512 data breaches affecting 154,415,257 patient records from a heterogeneous distribution of covered entities (p<0.001). There were 128 EMR-related breaches of 4,867,920 patient records, while 363 hacking incidents affected 130,702,378 records. DISCUSSION AND CONCLUSION: Despite making up less than 25% of all breaches, hacking was responsible for nearly 85% of all affected patient records. As medicine becomes increasingly interconnected and informatics-driven, significant improvements to cybersecurity must be made so our health IT infrastructure is simultaneously effective, safe, and secure

HHS_BreachDataset_JAMIAO

Data downloaded from HHS OCR portal: https://ocrportal.hhs.gov/ocr/breach/breach_report.js

MARTE: Technology development and lessons learned from a mars drilling mission simulation

29 pages, 21 figures, 2 tables.-- ISI Article Identifier: 000250768000006.-- Special issue: Mining Robotics.The NASA Mars Astrobiology Research and Technology Experiment (MARTE) performed a field test simulating a robotic drilling mission on Mars in September 2005. The experiment took place in Minas de Riotinto in southwestern Spain, a highly relevant Mars analog site. The experiment utilized a 10 m class dry auger coring drill, a robotic core sample handling system, onboard science and life detection instruments, and a borehole inspection probe, all of which were mounted to a simulated lander platform. Much of the operation of the system was automated, and the resulting data were transmitted via satellite to remote science teams for analysis. The science team used the data to characterize the subsurface geology and to search for signs of life. Based on the data being received and operational constraints, the science team also directed the daily operation of the equipment. The experiment was highly successful, with the drill reaching over 6 m in depth in 23 days of simulated mission. The science team analyzed remote sensing data obtained from 28 cores and detected biosignatures in 12 core subsamples. This experiment represents an important first step in understanding the technology and operational requirements for a future Mars drilling mission. In the past there have been numerous rover field tests that have helped guide the design and implementation of the highly successful rover missions to Mars. However, a drilling mission potentially adds a new level of complexity, and it is important to understand the associated challenges. This paper documents the design of the experimental system, highlighting some of the more important design criteria and design trades. It also discusses the results of the field testing and lists some of the key technological lessons learned.MARTE was jointly funded by the NASA Astrobiology Science and Technology for Exploring Planets (ASTEP) program through NRA 02-OSS-01. Partial funding for automation was provided by the NASA Intelligent Systems program. Spanish participation in MARTE was funded by the Centro de Astrobiología. We also thank the Museo Minero de Rio Tinto, Spain and the staff of the Vazquez Díaz Hotel in Nerva, Spain for providing field facilities and logistical support to the MARTE project.Peer reviewe