Echoes of the sea around us—Human hopes in the balance

Earth’s human life-support system shows signs of failing. Human capacity to alter landscapes and the atmosphere is reaching catastrophic levels. Only the oceans seemed to be beyond control, but still they are not beyond human influence. Limited experience in protecting nature’s integrity, health, and resilience in seascapes offers the potential to reverse sliding global environmental conditions by providing realistic expectations, offering moral fortitude, stimulating imagination, and proffering hope. The ocean’s capacity to evoke human awe and inspiration may be sufficient to focusmankind on the global existential threats we face. It is now vital to heed Rachael Carson’s 1937 prescient observation “Against this cosmic background the lifetime of a particular plant or animal appears not as a drama complete in itself but only as a brief interlude in a panorama of endless change.” The world will keep spinning, whether people are able to enjoy the ride or not

An analysis in mental imagery in grade five.

Thesis (M.A.)--Boston Universit

Some Aspects of the Life Histories of Three Closely Related Crayfish Species, Orconectes Obscurus, O. Sanborni, and O. Propinquus

Author Institution: Department of Biological Sciences, Kent State University, Kent, OhioThe life histories of three closely related species of crayfish, Orconectes obscurus (Hagen), Orconectes sanborni (Faxon) and Orconectes propinquus (Girard), which occupy separate rivers in northeastern Ohio, were studied and compared. Crayfish were collected from the same location, approximately bi-weekly, from April through October 1967. Major aspects of life histories of the three species are similar and can be summarized as follows. Mature crayfish mate in August and September; eggs are laid in April and May and young become independent in June. Growth and activity cease during the winter and resume in the spring. First-form males change to second form in the spring and in late summer revert back to first form. Immature individuals molt several times during the summer, each time increasing in carapace length by one mm, or sometimes by two mm or more. Males of Orconectes obscurus and 0. sanborni do not attain sexual maturity until their second summer, but many 0. propinquus males become sexually mature in their first summer. Attempts at interspecific mating in the laboratory yielded one successful mating, that between a male Orconectes propinquus and a female 0. sanborni. This female could not be kept, so it is not known whether viable young would have been produced. The pleura were clipped in different combinations for marking and recapture studies which were conducted during the summer of 1967. Rates of recapture of marked individuals were: Orconectes obscurus, 28%; 0. sanborni, 1%; and 0. propinquus, 14%

Parallelism between classical tragedy and the tragedy of William Butler Yeats

This item was digitized by the Internet Archive

(The) philosophy of ten modern religious dramas ..

Typewritten sheets in cover. Thesis (M.A.)--Boston University This item was digitized by the Internet Archive. Bibliography: 2 p. at end

Beyond the scenery: Parks as giant living classrooms

Parks offer numerous forms of educational value, but these values will be diminished or lost if society is left unaware of history or we become oblivious to our surroundings

Effects of Clinostat Rotation on Aurelia Statolith Synthesis

Aurelia ephyrae develop eight graviceptors (rhopalia) during their metamorphosis from polyps, which are used for positional orientation with respect to gravity. In three experiments for each speed of 1/15, 1/8, 1/2, 1, and 24 rpm, groups of six polyps were rotated in the horizontal or vertical plane (control) using clinostats. Other controls were kept stationary in the two planes. Ten ephyrae from each group were collected after 5 to 6 days at 27 C in iodine and the number of statoliths per rhopalium were counted. Statistical analyses of statolith numbers revealed that horizontal clinostat rotation at 1/4 and 1/2 rpm caused the formation of significantly fewer statoliths per rhopalium than were found in controls. The finding that these slow rates of rotation reduces statolith numbers suggests that the developing ephyrae were disoriented with respect to gravity at these speeds, causing fewer statocytes to differentiate or to mineralize

The Ursinus Weekly, September 28, 1964

Sue Harman places in Penna. title contest • Curtain Club programs Fall theater events • Customs continue at UC: Frosh don dinks, signs, socks in annual orientation program • 249 freshmen weather first week of orientation, classes: Arrive Saturday for weekend of preliminary assemblies and introductions • Messiah chorus begins practice • Ursinus receives $1,000 grant from Gulf Oil Co. • Letter to the editor • Young Democrats plan campaign • Three classes participate in Summer program • Something to live up to: Ursinus stars in Inquirer article • 47 freshmen arrive with honors • Teacher exams for student teachers • Poetry contest for students • Dean announces stiffer parking enforcement • UC gridmen out-hustle and out-last PMC, 13-6 • Hockey practice officially starts • Pancoast vacates baseball spot to seek seat in the State House: Siebman find themselves Sieb-less • UC names Hess mat mentor • Spirit Committee undertakes enthusiasm drive • UC Sailing Team breezes through first regatta • APO continues PA system drive • YM-YW camp held for freshmen • Invitations mark opening of Greek rushing today • Ursinus elects insurance leader to directorship • Schellhase joins seminary staff • Dr. W. F. Philip, Ursinus, attends music festival • Greek gleaningshttps://digitalcommons.ursinus.edu/weekly/1228/thumbnail.jp

Web-based Education: Revolution or Fad?

This debate will follow the traditional model. Two speakers will argue that the Web will revolutionize education and two will present the opposing argument. Gordon Davis will adjudicate the debate and make a concluding statement