scholarly journals Seasonal Variations in the Phosphate and Silicate Content of Sea Water. Part VI. 1948 Compared with the 1923–25 Period

Author(s):  
W. R. G. Atkins

The fifth paper of this series (1930) was the author's last, after which the work was handed over to L. H. N. Cooper. It was resumed by the author in 1948 to compare the early years with the post-war, since the determinations had lapsed. Measurements of the extinction coefficient of the water were also resumed, and it was desirable to obtain the chemical data at precisely the same time.The phosphate results are, as before, expressed as P2O5 in mg./m.3, since for crop calculations this old unit is convenient; to convert to mg. P, which is more rational, multiply by 0437; to bring to milligram atoms multiply by 0–0141. The analyses have not been corrected for salt error, since the early results were not^ and the factor for this correction has not as yet been agreed upon.The silicate results are given as mg./m.3, of SiO2, but though the standard used in Plymouth was checked for me by Dr E. J. King in Canada and agreed with his (King & Lucas, 1928), yet a different value had to be assigned to the silica factor of the picric acid solution. All values have accordingly been multiplied by I.44.The phosphate results for E1, surface, from 11 February 1948 to 1 February 1949 are shown in Fig. plotted against the dates.

Author(s):  
W. R. G. Atkins

In the previous numbers of this series (1923, 1925, 1926, 1928) it was fully established that the phosphate and silicate content of sea-water becomes greatly reduced in spring and summer. It is possible to calculate a minimum value for the phytoplankton crop from the amount of phosphate used up, also to ascertain the production up to and between various dates; such information has a direct bearing on the supply of food for copepods and other animals upon which young fish feed. The accumulation of data of this type should in time permit of some generalization as to the favourableness or otherwise of any season with respect to the survival of relatively large numbers of young fish of various species in the locality studied. The present paper is a further contribution towards the amassing of seasonal productivity data which has been in progress since March 1923, with a gap from March to October, inclusive, during 1927. Information has moreover been sought as to the extent to which the removal of the phosphate approaches completion; the analyses of water samples low in phosphate have been carried out with a rather greater degree of accuracy than heretofore, by using a more exact method of allowing for the reagent blank, by using weaker standard solutions and by ensuring that in nearly every case the analyses were performed on the day following that on which the water samples had been taken. When the cruise extended for two days this was not possible as regards samples taken on the first day. Furthermore, measurements have been made (Poole and Atkins, 1928) of the illumination, both aerial and submarine, obtaining when the samples were taken.


Author(s):  
W. R. G. Atkins

1. A comparison of the strength of the wind, Beaufort Scale, and of its direction during the periods when the vernal diatom outburst caused phosphate depletion of the surface water, has failed to indicate that there is any connection between either strength or direction and the date of the outburst. The spring sunshine still appears to be the important factor at El.2. The sequence of the years studied as regards the main spring diatom outburst deduced from phosphate depletion at Station El is as follows: 1924, early March; 1926, late March to early April; 1925, early April; 1923, early May.


2008 ◽  
pp. 177-205
Author(s):  
Adam Kopciowski

In the early years following World War II, the Lublin region was one of the most important centres of Jewish life. At the same time, during 1944-1946 it was the scene of anti-Jewish incidents: from anti-Semitic propaganda, accusation of ritual murder, economic boycott, to cases of individual or collective murder. The wave of anti-Jewish that lasted until autumn of 1946 resulted in a lengthy and, no doubt incomplete, list of 118 murdered Jews. Escalating anti-Jewish violence in the immediate post-war years was one of the main factors, albeit not the only one, to affect the demography (mass emigration) and the socio-political condition of the Jewish population in the Lublin region


Author(s):  
R.V. Vaidyanatha Ayyar

The chapter is a prologue to the main narrative of the book. It offers an evaluation of Macaulay’s minute which paved the way for introduction of modern education in India, the idea of National System Of Education which dominated Indian thinking on education for over sixty years from the Partition of Bengal (1905) to the Kothari Commission (1964), and the division of responsibility between the Central and Provincial Governments for educational development during British Raj. It offers a succinct account of the key recommendations of the landmark Sarjent Committee on Post-War Educational Development, the Radhakrishnan Commission on University Development, and the Mudaliar Commission on Secondary Education, of the drafting history of the provisions relating to education in the Constitution, the spectacular expansion of access after Independence, the evolution of regulatory policies and institutions like the University Grants Commission (UGC), and of the delicate compromise over language policy.


1969 ◽  
Vol 44 (6) ◽  
pp. 279-281 ◽  
Author(s):  
Faye Sweat Waldrop ◽  
Holde Puchtler ◽  
Mary S. Terry
Keyword(s):  

2021 ◽  
Vol 30 (1) ◽  
pp. 16-31
Author(s):  
Mira Markham

After the renewal of national independence in 1945 former anti-fascist partisans were among the Czechoslovak Communist Party's most reliable and radical allies. Nevertheless, following the communist coup of 1948, a group of partisans in the rural region of Moravian Wallachia began to mobilise wartime networks and tactics against the consolidating party dictatorship, establishing the Světlana resistance network. Simultaneously, state authorities also drew on partisan practices to reconstitute opposition and resistance in this region as evidence of an international conspiracy that could be understood and prosecuted within the framework of official ideology and propaganda. This article analyses the case of Světlana to examine the politics of people's democracy in Czechoslovakia and explore local dynamics of resistance and repression during the early years of the communist regime.


2013 ◽  
Author(s):  
Spero Simeon Zachary Paravantes

While trying to understand and explain the origins and dynamics of Anglo-American foreign policy in the pre and early years of the Cold War, the role thatperception played in the design and implementation of foreign policy became acentral focus. From this point came the realization of a general lack of emphasisand research into the ways in which the British government managed to convincethe United States government to assume support for worldwide British strategicobjectives. How this support was achieved is the central theme of this dissertation.This work attempts to provide a new analysis of the role that the British played in the dramatic shift in American foreign policy from 1946 to 1950. Toachieve this shift (which also included support of British strategic interests in theEastern Mediterranean) this dissertation argues that the British used Greece, first asa way to draw the United States further into European affairs, and then as a way toanchor the United States in Europe, achieving a guarantee of security of theEastern Mediterranean and of Western Europe.To support these hypotheses, this work uses mainly the British andAmerican documents relating to Greece from 1946 to 1950 in an attempt to clearlyexplain how these nations made and implemented policy towards Greece duringthis crucial period in history. In so doing it also tries to explain how Americanforeign policy in general changed from its pre-war focus on non-intervention, to the American foreign policy to which the world has become accustomed since 1950. To answer these questions, I, like the occupying (and later intervening)powers did, must use Greece as an example. In this, I hope that I may be forgivensince unlike them, I intend not to make of it one. My objectives for doing so lie notin justifying policy, but rather in explaining it. This study would appear to havespecial relevance now, not only for the current financial crisis which has placedGreece once again in world headlines, but also for the legacy of the Second WorldWar and the post-war strife the country experienced which is still playing out todaywith examples like the Distomo massacre, German war reparations and on-goingsocial, academic and political strife over the legacy of the Greek Civil War.


1948 ◽  
Vol 25 (3) ◽  
pp. 270-275
Author(s):  
H. BARNES ◽  
F. A. STANBURY

1. The results are given of the poisoning of Nitocra spinipes (Boeck) by copper and mercury salts used together and separately. 2. The state of copper and mercuric salts in sea water is examined using the available physico-chemical data. 3. The results suggest that the two poisons act in a different manner and possible reasons for this are considered. 4. The striking synergic effects obtained when the two metals are used together are considered to support the suggestion in 3 above and various possible explanations, both biological and chemical for this synergism, are examined.


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