MS-057: The Papers of Donna O. Schaper, Class of 1969: The Gettysburg Years

This collection consists of correspondence and college papers from Donna Osterhoudt Schaper, who graduated from Gettysburg College in 1969. As a student, she was part of the student protest movement against the Vietnam War, and she interned for the College Chapel before attending the Lutheran Theological Seminary. Special Collections and College Archives Finding Aids are discovery tools used to describe and provide access to our holdings. Finding aids include historical and biographical information about each collection in addition to inventories of their content. More information about our collections can be found on our website http://www.gettysburg.edu/special_collections/collections/.https://cupola.gettysburg.edu/findingaidsall/1052/thumbnail.jp

Modified Method of Kluver-Barrera's Staining with Microwave Irradiation

クリューバー･バレラ(KB)染色は中枢神経系の白質における重要成分である髄鞘を選択的に染色する方法として日常的に広く使われている｡しかし現在の所,ルクソール･ファスト青(LFB)染色後の0.05%炭酸リチウム及び70%アルコールによる分別時間が確定されていないので,分別の良否を経験的にしか判断せざるをえないという欠点がある｡そこで,本研究において,マイクロウェーブ照射をLFB染色に応用することで,その後の分別について検討した結果,従来の0.05%炭酸リチウムでは良好な結果が得られなかったが分別液として,0.05%炭酸水素ナトリウムおよび70%アルコールを用いることで分別時間の確定が可能となった。Kluver-Barrera's (KB) staining is the well-known and widely used method for staining the Schwann's sheath of the central nervous systems. On the contrary, the optimum time is not established yet, which incubated with 0.05% lithium carbonate and 70% alcohol after luxol fast blue staining. The modified method was studied that was stained with the microwave irradiation and used 0.05% sodium bicarbonate in stead of 0.05% lithium carbonate. This method was simple and useful to differentiate Schwann's sheath from other components

VLBI Detections of Parsec-Scale Nonthermal Jets in Radio-Loud Broad Absorption Line Quasars

We conducted radio detection observations at 8.4 GHz for 22 radio-loud broad absorption line (BAL) quasars, selected from the Sloan Digital Sky Survey (SDSS) Third Data Release, by a very-long-baseline interferometry (VLBI) technique. The VLBI instrument we used was developed by the Optically ConnecTed Array for VLBI Exploration project (OCTAVE), which is operated as a subarray of the Japanese VLBI Network (JVN). We aimed at selecting BAL quasars with nonthermal jets suitable for measuring their orientation angles and ages by subsequent detailed VLBI imaging studies to evaluate two controversial issues of whether BAL quasars are viewed nearly edge-on, and of whether BAL quasars are in a short-lived evolutionary phase of quasar population. We detected 20 out of 22 sources using the OCTAVE baselines, implying brightness temperatures greater than 10^5 K, which presumably come from nonthermal jets. Hence, BAL outflows and nonthermal jets can be generated simultaneously in these central engines. We also found four inverted-spectrum sources, which are interpreted as Doppler-beamed, pole-on-viewed relativistic jet sources or young radio sources: single edge-on geometry cannot describe all BAL quasars. We discuss the implications of the OCTAVE observations for investigations for the orientation and evolutionary stage of BAL quasars.Comment: 10 pages, no figure, 3 tables, accepted for publication in PAS

Relationship Between Mobile Device Use and Self-Regulation in Early Childhood : Examination by Nursery School Survey

本研究の目的は，幼少期の子どものモバイル端末利用と自己制御の関連を検討することであった。自己制御は，気質的側面であり子どもの養育者によって測定されるエフォートフル・コントロール（EC）と，認知的側面であり子どもへの課題の実施によって測定される実行機能の2つの観点から捉え，モバイル端末利用頻度や利用規則との相関係数を算出した。その結果，幼少期の子どものモバイル端末利用頻度は，自己制御の低さと関連することが示された。This study examined whether mobile device use was associated with self-regulation in early childhood. Self-regulation was assessed by two aspects: effortful control (i.e., a temperamental aspect and evaluated by the caregiver) and executive function, (i.e., a cognitive aspect and measured by performing tasks on children). We calculated the correlation coefficient between mobile device use and self-regulation. We found that the frequency of mobile device use was associated with lower levels of executive function among infants

Delphi Method Consensus-Based Identification of Primary Trauma Care Skills Required for General Surgeons in Japan

Purpose General surgeons at regional hospitals should have the primary trauma care skills necessary to treat critically ill trauma patients to withstand transfer. This study was conducted to identify a consensus on primary trauma care skills for general surgeons. Methods An initial list of acute care surgical skills was compiled, and revised by six trauma experts (acute care surgeons); 33 skills were nominated for inclusion in the Delphi consensus survey. Participants (councilors of the Japanese Society for Acute Care Surgery) were presented with the list of 33 trauma care skills and were asked (using web-based software) to rate how strongly they agreed or disagreed (using a 5-point Likert scale) with the necessity of each skill for a general surgeon. The reliability of consensus was predefined as Cronbach’s α ≥ 0.8, and trauma care skills were considered as primarily required when rated 4 (agree) or 5 (strongly agree) by ≥ 80% participants. Results There were 117 trauma care specialists contacted to participate in the Delphi consensus survey panel. In the 1st round, 85 specialists participated (response rate: 72.6%). In the 2nd round, 66 specialists participated (response rate: 77.6%). Consensus was achieved after two rounds, reliability using Cronbach’s α was 0.94, and 34 items were identified as primary trauma care skills needed by general surgeons. Conclusion A consensus-based list of trauma care skills required by general surgeons was developed. This list can facilitate the development of a new trauma training course which has been optimized for general surgeons

Various Spatiotemporal Expression Profiles of Anther-Expressed Genes in Rice

The male gametophyte and tapetum play different roles during anther development although they are differentiated from the same cell lineage, the L2 layer. Until now, it has not been possible to delineate their transcriptomes due to technical difficulties in separating the two cell types. In the present study, we characterized the separated transcriptomes of the rice microspore/pollen and tapetum using laser microdissection (LM)-mediated microarray. Spatiotemporal expression patterns of 28,141 anther-expressed genes were classified into 20 clusters, which contained 3,468 (12.3%) anther-enriched genes. In some clusters, synchronous gene expression in the microspore and tapetum at the same developmental stage was observed as a novel characteristic of the anther transcriptome. Noteworthy expression patterns are discussed in connection with gene ontology (GO) categories and gene annotations, which are related to important biological events in anther development, such as pollen maturation, pollen germination, pollen tube elongation and pollen wall formation

Identification of mutations through dominant screening for obesity using C57BL/6 substrains

The discovery of leptin substantiated the usefulness of a forward genetic approach in elucidating the molecular network regulating energy metabolism. However, no successful dominant screening for obesity has been reported, which may be due to the influence of quantitative trait loci between the screening and counter strains and the low fertility of obese mice. Here, we performed a dominant screening for obesity using C57BL/6 substrains, C57BL/6J and C57BL/6N, with the routine use of in vitro fertilization. The screening of more than 5000 mutagenized mice established two obese pedigrees in which single nucleotide substitutions in Mc4r and Sim1 genes were identified through whole-exome sequencing. The mutation in the Mc4r gene produces a premature stop codon, and the mutant SIM1 protein lacks transcriptional activity, showing that the haploinsufficiency of SIM1 and MC4R results in obesity. We further examined the hypothalamic neuropeptide expressions in the mutant pedigrees and mice with diet-induced obesity, which showed that each obesity mouse model has distinct neuropeptide expression profiles. This forward genetic screening scheme is useful and applicable to any research field in which mouse models work

The misasandry myth: An inaccurate stereotype about feminists' attitudes toward men

In six studies, we examined the accuracy and underpinnings of the damaging stereotype that feminists harbor negative attitudes toward men. In Study 1 (n = 1,664), feminist and nonfeminist women displayed similarly positive attitudes toward men. Study 2 (n = 3,892) replicated these results in non-WEIRD countries and among male participants. Study 3 (n = 198) extended them to implicit attitudes. Investigating the mechanisms underlying feminists’ actual and perceived attitudes, Studies 4 (n = 2,092) and 5 (nationally representative UK sample, n = 1,953) showed that feminists (vs. nonfeminists) perceived men as more threatening, but also more similar, to women. Participants also underestimated feminists’ warmth toward men, an error associated with hostile sexism and a misperception that feminists see men and women as dissimilar. Random-effects meta-analyses of all data (Study 6, n = 9,799) showed that feminists’ attitudes toward men were positive in absolute terms and did not differ significantly from nonfeminists'. An important comparative benchmark was established in Study 6, which showed that feminist women's attitudes toward men were no more negative than men's attitudes toward men. We term the focal stereotype the misandry myth in light of the evidence that it is false and widespread, and discuss its implications for the movement