5,696 research outputs found
The Wisdom of the Strict Locality Rule
Unlike the preceding article, this article favors the retention of the strict locality rule in medical malpractice cases in Maryland. The authors, after analyzing many of the arguments put forth to liberalize or extinguish Maryland\u27s version of the strict locality rule, discuss the case history that has solidified Maryland\u27s position and demonstrate the justification for the rule\u27s continued application in this jurisdiction
The Wisdom of the Strict Locality Rule
Unlike the preceding article, this article favors the retention of the strict locality rule in medical malpractice cases in Maryland. The authors, after analyzing many of the arguments put forth to liberalize or extinguish Maryland\u27s version of the strict locality rule, discuss the case history that has solidified Maryland\u27s position and demonstrate the justification for the rule\u27s continued application in this jurisdiction
High-resolution measurements of surface topography with airborne laser altimetry and the global positioning system
Recently, an airborne lidar system that measures laser pulse time-of-flight and the distortion of the pulse waveform upon reflection from earth surface terrain features was developed and is now operational. This instrument is combined with Global Positioning System (GPS) receivers and a two-axis gyroscope for accurate recovery of aircraft position and pointing attitude. The laser altimeter system is mounted on a high-altitude aircraft platform and operated in a repetitively-pulsed mode for measurements of surface elevation profiles at nadir. The laser transmitter makes use of recently developed short-pulse diode-pumped solid-state laser technology in Q-switched Nd:YAG operating at its fundamental wavelength of 1064 nm. A reflector telescope and silicon avalanche photodiode are the basis of the optical receiver. A high-speed time-interval unit and a separate high-bandwidth waveform digitizer under microcomputer control are used to process the backscattered pulses for measurements of terrain. Other aspects of the lidar system are briefly discussed
Degree Extension for Technicians (DEFT)
The Degree Extension for Technicians (DEFT) programme addresses a particular niche in Irish engineering education by offering qualified technicians (currently working in Irish electronics industry) an opportunity to undertake, principally via the Internet, a flexible learning programme leading to a professional engineering degree. This paper addresses the various aspects that make such a mode of learning appropriate to the programme and also looks at the motivation behind the decision to develop a new virtual learning environment (VLE) in-house. The paper also documents the implementation of a challenging project schedule which brought the DEFT programme and VLE to fruition over a 10-month period. The current status of the project, together with experiences to date, conclude the paper
Microbial mats in the Turks and Caicos Islands reveal diversity and evolution of phototrophy in the Chloroflexota order Aggregatilineales
Genome-resolved metagenomic sequencing approaches have led to a substantial increase in the recognized diversity of microorganisms; this included the discovery of novel metabolic pathways in previously recognized clades, and has enabled a more accurate determination of the extant distribution of key metabolisms and how they evolved over Earth history. Here, we present metagenome-assembled genomes of members of the Chloroflexota (formerly Chloroflexi or Green Nonsulfur Bacteria) order Aggregatilineales (formerly SBR1031 or Thermofonsia) discovered from sequencing of thick and expansive microbial mats present in an intertidal lagoon on Little Ambergris Cay in the Turks and Caicos Islands. These taxa included multiple new lineages of Type 2 reaction center-containing phototrophs that were not closely related to previously described phototrophic Chloroflexota—revealing a rich and intricate history of horizontal gene transfer and the evolution of phototrophy and other core metabolic pathways within this widespread phylum
Microbial mats in the Turks and Caicos Islands reveal diversity and evolution of phototrophy in the Chloroflexota order Aggregatilineales
Genome-resolved metagenomic sequencing approaches have led to a substantial increase in the recognized diversity of microorganisms; this included the discovery of novel metabolic pathways in previously recognized clades, and has enabled a more accurate determination of the extant distribution of key metabolisms and how they evolved over Earth history. Here, we present metagenome-assembled genomes of members of the Chloroflexota (formerly Chloroflexi or Green Nonsulfur Bacteria) order Aggregatilineales (formerly SBR1031 or Thermofonsia) discovered from sequencing of thick and expansive microbial mats present in an intertidal lagoon on Little Ambergris Cay in the Turks and Caicos Islands. These taxa included multiple new lineages of Type 2 reaction center-containing phototrophs that were not closely related to previously described phototrophic Chloroflexota—revealing a rich and intricate history of horizontal gene transfer and the evolution of phototrophy and other core metabolic pathways within this widespread phylum
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