A $q$-queens problem V. some of our favorite pieces: queens, bishops, rooks, and nightriders

Seth Chaiken,Christopher R. H. Hanusa,Thomas Zaslavsky 대한수학회 2020 대한수학회지 Vol.57 No.6

Parts~I--IV showed that the number of ways to place $q$ nonattacking queens or similar chess pieces on an $n\times n$ chessboard is a quasipolynomial function of $n$ whose coefficients are essentially polynomials in $q$. For partial queens, which have a subset of the queen's moves, we proved complete formulas for these counting quasipolynomials for small numbers of pieces and other formulas for high-order coefficients of the general counting quasipolynomials. We found some upper and lower bounds for the periods of those quasipolynomials by calculating explicit denominators of vertices of the inside-out polytope. Here we discover more about the counting quasipolynomials for partial queens, both familiar and strange, and the nightrider and its subpieces, and we compare our results to the empirical formulas found by \Kot. We prove some of \Kot's formulas and conjectures about the quasipolynomials and their high-order coefficients, and in some instances go beyond them.

Understanding Nativist Elements Relating to Immigration Policies and to the American Constitution’s Natural Born Citizen Clause

Seth Barrett Tillman 미국헌법학회 2021 美國憲法硏究 Vol.32 No.2

이 에세이는 두 가지 관련된 질문을 던집니다. 첫째, 사회는 시민과 이민자를 구별하는 것이 정당화됩니까? 둘째, 사회는 (1) 태어날 때부터 시민, (2) 태어나고 얼마 후 귀화를 통해 시민이 된 사람을 구별하는 것이 정당한가? 이러한 관련 질문을 다루면서 이 에세이는 (1) 국제 국경을 넘는 것과 관련된 정책 및 (2) 미국 헌법 2조 1항 5절 - “천연 시민 조항”에 대해 논의합니다. 현대 주석가들은 후자의 헌법 조항이 도덕적으로 건전하거나 합리적인 목적에 부합하지 않으며 그 조항이 편견과 외국인 혐오에 뿌리를 두고 있다고 일관되게 제안했습니다. 저자는 반대 입장을 취하며 초기 비준 후 헌법학을 참조하고 소크라테스식 대화에서 독자에게 가설을 제시함으로써 자신의 관점을 지지합니다. This essay asks two related questions: First, is a society justified in distinguishing: citizens and immigrants? Second, is a society justified in distinguishing: (1) citizens from birth, and (2) persons who become citizens through naturalization some time after they are born? In addressing these related questions, this essay discusses: (1) policies relating to crossing international frontiers, and (2) United States Constitution, Article 2, Section 1, Clause 5 the “Natural Born Citizen Clause.” Modern commentators have uniformly suggested: that the latter constitutional provision serves no morally sound or reasonable purpose, and that the provision is rooted in bigotry and xenophobia. The author takes a contrary position, and supports his viewpoint by referencing early post-ratification constitutional scholarship and by posing hypotheticals to the reader in a Socratic dialogue.

Solving the Mystery of Consistent Negative/Low Net Promoter Score (NPS) in Cross-Cultural Marketing Research

Seth, Sanjay,Scott, Don,Svihel, Chad,Murphy-Shigematsu, Stephen Korean Marketing Association 2016 ASIA MARKETING JOURNAL Vol.17 No.4

This paper has identified some theoretical reasons and empirical evidence for negative scores that occur in Japan and Korea or unstable NPS scores that can be experienced. A psychological analysis of NPS results sheds light on the validity of the negative NPS scores that are often found in Japan and Korea. Usually customer experience surveys utilize a "single stimulus" such as the "company" or the "company's products / services." However, in the case of the "recommendation to friend" question of the NPS system there are two stimuli namely the "company product/service" and the influence of "friends." Hence, the survey outcomes from this question can be very different when compared with other single stimulus questions such as "overall satisfaction" or "repurchase." Japanese and Korean people may have a positive attitude towards the company but they will provide low NPS scores because they are reflecting that they would not run the risk of ruining their relationships with their friends by making a recommendation. As a result, in the NPS system these people will be labeled as "detractors" when in fact they are "ambivalent customers." Using several Japanese and Korean based marketing research industry examples and case studies, different strategies are proposed to address the issue of negative scores in the NPS system in Japan and Korea. The Customers Psyche appears to be the key determinant factors for both types of behavioural items (items with a single stimulus as well as items with two stimuli).

Nanomaterials for enhanced immunity as an innovative paradigm in nanomedicine.

Seth, Anushree,Oh, Doo-Byoung,Lim, Yong Taik Future Medicine Ltd 2015 Nanomedicine Vol.10 No.6

<P>Since the advent of nanoparticle technology, novel and versatile properties of nanomaterials have been introduced, which has constantly expanded their applications in therapeutics. Introduction of nanomaterials for immunomodulation has opened up new avenues with tremendous potential. Interesting properties of nanoparticles, such as adjuvanticity, capability to enhance cross-presentation, polyvalent presentation, siRNA delivery for silencing of immunesuppressive gene, targeting and imaging of immune cells have been known to have immense utility in vaccination and immunotherapy. A thorough understanding of the merits associated with nanomaterials is crucial for designing of modular and versatile nanovaccines, for improved immune response. With the emerging prerequisites of vaccination, nanomaterial-based immune stimulation, seems to be capable of taking the field of immunization to a next higher level.</P>

A Study on Community Perceptions of Common Cancers, Determinants of Community Behaviour and Program Implementation in New Delhi, India

Seth, Tulika,Kotwal, Atul,Thakur, Rakesh Kumar,Ganguly, K.K. Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.6

Assessment of perceptions of the community, the determinants and development of their behavior regarding common malignancies, helps in establishing evidence-based activities for prevention and early diagnosis of cancer. However information on this important aspect is lacking in our country. Qualitative methods were here used to obtain information through in depth interviews and Focus Group Discussions (FGDs) with all categories of identified stakeholders. Most were unaware of the activities of the cancer control program. Even the providers were not fully conversant. All respondents mentioned lack of diagnostic and treatment facilities in government, primary and secondary level facilities. Perceptions of different categories of stakeholders regarding why many community members did not attend screening camps and other services reflect the determinants of community behavior, acting independently as well as in combination. The cancer control program was thought to be restricted only to some private facilities and overcrowded government tertiary care facilities where the visits were time consuming. Almost all the facilities were considered curative oriented. Issues of supervision, monitoring and feedback were inadequately addressed by providers who were inadequately trained in many program activities. The program lacked effective planning, coordination and appropriate implementation at the grass roots level in Delhi. Social mobilization was grossly inadequate, as most of the community members were unaware of the existence of the program. Misconceptions about the risk factors, signs and symptoms, diagnosis, and treatment were common amongst community members as well as many of the providers. Thus the national cancer control program in our country needs further community participation and social mobilization. Accessibility, availability, acceptability and affordability of various preventive, curative and rehabilitative activities, as well as intersectoral coordination, training, supervision and monitoring of program activities, all need to be addressed to ensure the success of this important public health program.

Behavior of multi-story steel buildings under dynamic column loss scenarios

Seth T. Hoffman,Larry A. Fahnestock 국제구조공학회 2011 Steel and Composite Structures, An International J Vol.11 No.2

This paper presents a computational study of column loss scenarios for typical multi-story steel buildings with perimeter moment frames and composite steel-concrete floors. Two prototype buildings (threestory and ten-story) were represented using three-dimensional nonlinear finite element models and explicit dynamic analysis was used to simulate instantaneous loss of a first-story column. Twelve individual column loss scenarios were investigated in the three-story building and four in the ten-story building. This study provides insight into: three-dimensional load redistribution patterns; demands on the steel deck, concrete slab, connections and members; and the impact of framing configuration, building height and column loss location. In the dynamic simulations, demands were least severe for perimeter columns within a moment frame, but the structures also exhibited significant load redistribution for interior column loss scenarios that had no moment connectivity. Composite action was observed to be an important load redistribution mechanism following column loss and the concrete slab and steel deck were subjected to high localized stresses as a result of the composite action. In general, the steel buildings that were evaluated in this study demonstrated appreciable robustness.

Etymology of U.S. Place Names

Seth, Michel J 한국외국어대학교 영어과 1984 外英 Vol.2 No.1

In Vitro Activity of Extract and Fractions of Natural Cocoa Powder on Plasmodium falciparum

Seth K. Amponsah,Kwasi A. Bugyei,Dorcas Osei-Safo,F. Kwaku Addai,George Asare,Emmanuel Aheto Tsegah,Joseph Baah,Michael Ofori,Ben A. Gyan 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.5

Several flavonoids isolated from certain plants have demonstrated antiplasmodial activity, after their initial indigenous use in malaria treatment. Cocoa has been found to be a rich food source of flavonoids in comparison with many common foods and beverages. The aim of this work was to investigate the in vitro activity of natural cocoa powder on the growth of Plasmodium falciparum. Prepared crude methanol extract was partitioned successively with petroleum ether, ethyl acetate,chloroform, and butanol. Total flavonoid concentration in the crude methanol extract and fractions was measured by the AlCl3colorimetric assay. Direct inhibitory activity of the natural cocoa powder was assessed by culturing extract and fractions with P. falciparum in vitro. Greater antiplasmodial activity was observed in nonpolar solvent fractions (chloroform, ethyl acetate, and petroleum ether) compared with polar solvents. The chloroform fraction was most active, with mean – SEM 50% and 90%inhibition concentrations of 48.3 – 0.9 and 417 – 7.8 lg/mL, respectively. The study showed a weak association between total flavonoid concentration and antiplasmodial activity. Early trophozoite (ring-stage) synchronized cultures treated with the chloroform fraction of natural cocoa powder showed a decline in growth. Further reduction in parasitemia was also observed for other erythrocytic stages. These results suggest that natural cocoa powder has measurable direct in vitro inhibitory effect on P. falciparum and support the anecdotal reports of its ability to prevent malaria as a result of regular intake as a beverage.

민족사에 있어서의 서술적 오류

Seth, Michael 한국외국어대학교 1986 한국외국어대학교 논문집 Vol.19 No.1

Venous Thromboembolism Chemoprophylaxis Within 24 Hours of Surgery for Spinal Cord Injury: Is It Safe and Effective?

Seth Ahlquist,Howard Y. Park,Benjamin Kelley,Langston Holly,Ayra N. Shamie,Don Y. Park 대한척추신경외과학회 2020 Neurospine Vol.17 No.2

Objective: Current guidelines recommend initiation of venous thromboembolism (VTE) chemoprophylaxis within 72 hours of spinal cord injury (SCI). This study investigated the safety and efficacy of chemoprophylaxis within 24 hours of surgery for SCI. Methods: A retrospective review of 97 consecutive patients who underwent surgery for acute traumatic SCI at a single level 1 trauma center from 2013–2018 was performed. VTE/ postoperative bleeding rates during hospitalization, demographics, medical/surgical complications, drain output, length of stay, and disposition were obtained. Chi–square with odds ratios (ORs), 1-way analysis of variance, and logistic regression were performed to establish significant differences between groups. Results: Seventy–nine patients were included, 49 received chemoprophylaxis within 24 hours and 20 within 24–72 hours. Cohort characteristics included an average age of 51.8 years, 77.2% male, 62.0% cervical, and 35.4% thoracic SCIs. Using the American Spinal Injury Association Impairment Scale (AIS), 39.2% were AIS-A injuries, 19.0% AIS-B, 25.3% AIS-C, and 16.5% AIS-D. Unfractionated heparin was administered in 88.6% of patients and 11.4% received low molecular weight heparin. Chemoprophylaxis within 24 hours of surgery was associated with a lower rate of VTE (6.1% vs. 35.0%; OR, 0.121; 95% confidence interval [CI], 0.027–0.535) and deep vein thrombosis (4.1% vs. 30.0%; OR, 0.099; 95% CI, 0.018–0.548) versus 24–72 hours. Pulmonary embolism rates were not significantly different (6.1% vs. 5.0%, p = 1.0). There were no postoperative bleeding complications and no significant difference in drain output between cohorts. Conclusion: Early VTE chemoprophylaxis is effective with lower VTE rates when initiated within 24 hours of surgery for SCI and is safe with no observed postoperative bleeding complications.