Some new methods for planetary exploration

For many centuries the planets of our solar system have been objects of study by astronomers. Before the invention of the telescope, these studies were restricted to an attempt to understand and predict their motion. Telescopes and accurate clocks allowed more precise observations to be made. By the 19th century, minor perturbations of the motions of the planets were being analyzed. By the end of this century, however, astronomers were becoming more interested in stellar and galactic problems, and the group interested in celestial mechanics and planetary observations appeared to be decreasing to a vanishing point in the mid-20th century. Then came the space program, and the possibility of performing experiments on, or at least near, other planets encouraged interest in the solar system to a remarkable degree

Exploration of the moon and planets

Unmanned interplanetary flight - engineering problems of mariner ii space prob

Pioneer III News Release

No abstract availabl

The Radio Sonde

The radio sonde has been developed in recent years as a practical instrument for transmitting information from the stratosphere. This paper discusses some of the problems connected with the application of the radio-sonde principle to the radio meteorograph and also to the cosmic-ray radio sonde

MUNICIPAL CORPORATIONS - STATUS OF A CITY MANAGER - ARE HIS FUNCTIONS PRIMARILY EXECUTIVE OR LEGISLATIVE?

When defendant city adopted the city-manager form of municipal government, it duly abolished by ordinance the board of police and fire commissioners and expressly assigned the board\u27s powers and duties to the city manager. Among such powers was that of recommending salary decreases for firemen and policemen, without which recommendation a decrease by action of the council was invalid. After the abolition of the board of police and .fire commissioners, the council decreased the salary of plaintiff policeman without previous recommendation by the city manager. Plaintiff claimed that such action was invalid, and sued to recover the amount of the salary decrease. Held, that prior recommendation by the city manager was not necessary, since the power to recommend decreases was legislative and being such could not be assigned to the city manager, it being the intent of the legislature to make the city manager an administrative officer. Webb v. City of Beloit, 229 Wis. 51, 281 N. W. 662 (1938)

Biochemical diagnosis of ventricular dysfunction in elderly patients in general practice: observational study

Objective: To investigate the usefulness of measuring plasma concentrations of B type natriuretic peptide in the diagnosis of left ventricular systolic dysfunction in an unselected group of elderly people. Design: Observational study. Setting: General practice with four centres in Poole, Dorset. Participants: 155 elderly patients aged 70 to 84 years. Main outcome measures: Diagnostic characteristics of plasma B type natriuretic peptide measured by radioimmunoassay as a test for left ventricular systolic dysfunction assessed by echocardiography. Results: The median plasma concentration of B type natriuretic peptide was 39.3 pmol/l in patients with left ventricular systolic dysfunction and 15.8 pmol/l in those with normal function. The proportional area under the receiver operator curve was 0.85. At a cut-off point of 18.7 pmol/l the test sensitivity was 92% and the predictive value 18%. Conclusions: Plasma concentration of B type natriuretic peptide could be used effectively as an initial test in a community screening programme and, possibly, using a low cut-off point, as a means of ruling out left ventricular systolic dysfunction. It is, however, not a good test to “rule in” the diagnosis, and access to echocardiography remains essential for general practitioners to diagnose heart failure early

NEGLIGENCE - CONTRIBUTORY NEGLIGENCE - STANDARD OF CARE - OBJECTIVE OR SUBJECTIVE?

While anchoring a guy wire for a hay carrier on his farm, plaintiff suffered injuries caused by contact between the guy wire and a high tension line owned by defendant. After an answer denying negligence and setting up the defense of contributory negligence on the part of plaintiff, defendant had a directed verdict. Held, that the alleged contributory negligence of plaintiff was a question of fact for the jury which was to be guided by the standard of care of the ordinary, careful, prudent man in the situation of the injured party in all respects, the court saying, We think it well settled that, in determining whether a plaintiff in a particular case was guilty of contributory negligence, the knowledge and experience of such plaintiff and the appreciation which he should have had of the danger must be taken into consideration. Aller v. Iowa Electric Light & Power Co., (Iowa, 1938) 283 N. W. 81 at 85