1,347 research outputs found
DK conjecture for Grassmannian flips
No full textPh.D.We investigate the DK conjecture on derived categories of coherent sheaves stated by Bondal-Orlov and Kawamata: there should be a derived embedding for any flip and in particular a derived equivalence for any flop. Unlike the situations for flops, there are few examples of flips proven to satisfy the DK conjecture except for some toroidal flips.We construct new examples of flips from Grassmannians, called Grassmannian flips, that satisfy the DK conjecture.我們對由彭督-奧爾洛夫（Bondal-Orlov）和川又（Kawamata）提出關於凝聚層的導出範疇相關的DK猜測進行探討：即對於任何翻轉（flip），都應該有導出（範疇的）嵌入，尤其是對於任何平轉 （flop），都應該有導出（範疇的）等價。與平轉（flop）的情況不同，除了一些環形翻轉（toroidal flips） 之外，鮮有反轉的例子證明能夠被證明滿足DK猜想。我們從格拉斯曼簇出發構造了滿足DK猜想的新例子，稱為格拉斯曼翻轉（Grassmannian flips）。Xie, Ying.Thesis Ph.D. Chinese University of Hong Kong 2020.Includes bibliographical references (leaves 84-88).Abstracts also in Chinese.Title from PDF title page (viewed on February 7, 2022)
Nu-DESC DK: the Danish version of the nursing delirium screening scale (nu-DESC)
No full textAbstract Background Delirium is one of the most common complications among elderly hospitalized patients, postoperative patients and patients on intensive care units with a prevalence between 11 and 80%. Delirium is associated with higher morbidity and mortality. Reliable instruments are required to detect delirium at an early time point. The Nursing-Delirium Screening Scale (Nu-DESC) is a screening tool with high sensitivity and good specificity. However, there is currently no official translation after ISPOR guidelines of any Danish delirium assessment tools available. Thereby hampering the implementation of 2017 ESA-Guidelines on postoperative Delirium in the clinical routine. The aim of this study is to provide an official translation and evaluation of the Nu-DESC into Danish following the ISPOR process. Methods The Nu-DESC was translated after International Society for Pharmacoecomonics and Outcome Research (ISPOR) guidelines to Danish after permission of the original author, and is evaluated by medical staff and finally approved by the original author. Results All steps of the ISPOR guideline were consecutively followed, without any major problems. The evaluation of the Nu-DESC DK regarding its intelligibility and feasibility showed no statistically significant differences between nurses and medical doctors ratings. The translation was authorized and approved by the original author. Conclusion This study provides the Nu-DESC DK, an official Danish delirium screening instrument, which can detect all psychomotor types of delirium
Relativistic segmented contraction basis sets with core-valence correlation effects for atoms 57La through 71Lu : Sapporo-DK-nZP sets (n = D, T, Q)
No full textFor the 15 lanthanide atoms 57La through 71Lu, we report Sapporo-DK-nZP sets (n = D, T, Q), which are natural extensions of the Sapporo-(DK)-nZP sets for lighter atoms and efficiently incorporate the correlation among electrons in the N through P shells as well as the relativistic effect. The present sets well describe the correlation among the 4s and 4p electrons, which are important in the excitation of 4f electrons. Atomic test calculations of 57La, 58Ce, 59Pr, and 60Nd at configuration interaction with the Davidson correction level of theory confirm high performance of the present basis sets. Molecular test calculations are carried out for 57LaF and 70YbF diatomics at the coupled cluster level of theory. The calculated spectroscopic constants approach smoothly to the experimental values as the quality of the basis set increases
The Gender Gap in Political Knowledge: Is It All About Guessing? An Experimental Approach
No full textThis article analyzes the extent to which the format and the “Do not know” (DK) protocol of political knowledge questions influence the size of the gender gap. By using a set of experiments that manipulated the DK protocol and the format (open vs. closed ended) of political knowledge questions in a face-to-face representative survey of the Spanish population, we show that the format of the questions (open vs. closed ended) is not relevant in explaining the gender gap. DK protocols, however, influence outspoken levels of political knowledge differently for men and women. DK-discouraging protocols tend to encourage the emergence of hidden knowledge among women, whereas they mostly boost guessing among men. This finding suggests that the meaning and the use of the DK option appear to be gender biased
Search for the decay B-0 -> DK*(0) followed by D -> K- pi(+)
No full textWe report a study of the decay B-0 -> DK+ pi(-) followed by D -> K- pi(+) , where D indicates D-0 or (D) over bar (0). We reconstruct the DK+ pi(-) state in a phase space corresponding to DK*(892)(0). The CP-violating angle phi(3) affects its decay rate via the interference between b -> u and b -> c transitions. The result is obtained from a 711 fb(-1) data sample that contains 772 X 10(6)B (B) over bar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We measure the ratio R-DK*0 Gamma(B-0 -> [K- pi(+) ](D)K+ pi(-))/Gamma(B-0 -> [K+ pi(-)](D)K+ pi(-)) to be (4.5(-5.0-1.8)(+5.6+2.8)) X 10(-2), and set an upper limit of R-DK*0 < 0.16 at the 95% credible interval.LPH
Reinterpretation of the Fragment DK B6 of Parmenides’ Poem
No full textU ovom članku razmatra se fragment DK B6 Parmenidove poeme. Autor zastupa tezu da bi najkoherentnija interpretacija DK B6 bila sljedeća: na početku fragmenta boginja izlaže kriterij istinitoga govora i mišljenja te zahtijeva od učenika da ga se pridržava; potom zahtijeva od učenika da prijeđe oba puta istraživanja – put istine i put smrtnika; poslije toga izlaže neka svojstva mnijenja smrtnika, kao i njihovu osnovnu zabludu; na kraju ona kaže da za smrtnike postoji put natrag ili izlaz, koji bi se sastojao u njihovom povratku na ono što je rečeno na početku fragmenta ili u njihovom povratku na kriterij istinitoga govora i mišljenja. Pomno čitanje toga fragmenta uzima se kao osnova za širu reinterpretaciju Parmenidove misli. U radu se brani teza da Parmenid u poemi u osnovi govori o dva, a ne o tri puta istraživanja. Također se brani teza da okosnicu izlaganja u poemi predstavlja sukob između dvije prima facie prihvatljive intuicije: intuicije o kriteriju istinitoga govora i mišljenja te intuicije nastale na našem osjetilnom iskustvu o događajima u svijetu, koju Parmenid naziva mnijenjem smrtnika. Općenito gledano, Parmenid prihvaća prvu intuiciju, ali njegova radikalna interpretacija te intuicije vodi do odbacivanja druge.This paper discusses the fragment DK B6 of Parmenides’ poem. The author defends the thesis that the most coherent interpretation of DK B6 were as follows: at the beginning of the fragment the goddess offers the criterion of truthful talking and thinking, and demands from her student to follow it; then, she requires the student to traverse both ways of inquiry, the way of truth and the way of mortals. After that, she exhibits some characteristics of the opinion of the mortals, as well as their crucial mistake; at the end she says that for the mortals there is a backward way, or a way out, which would consist in their return to what was said at the beginning of the fragment, or in their return to the criterion of truthful talking and thinking. Advanced reading of this fragment is taken as the basis for a more general reinterpretation of the thoughts of the famous Greek philosopher. The paper defends the thesis that Parmenides in his poem basically talks about two, not about three ways of inquiry. The paper also defends the thesis that the backbone of exposition of the poem represents a conflict between two prima facie acceptable intuitions: intuition about the criterion of truthful talking and thinking, and intuition incurred on our sensory experience of the events in the world, which Parmenides called the opinion of the mortals. In general, the thesis is that Parmenides accepted the first intuition, but that his radical interpretation of it lead to the rejection of the second
OPTIMALISASI KESIAPAN SEKOCI PENOLONG GUNA PELAKSANAAN DRILL MENINGGALKAN KAPAL DI MV. DK 02
No full textPuguh Iswara, 2018, 50134853. N, “The prepared optimally of lifeboat for carry out
abbandonship drill at MV. DK 02”. Diploma Program IV of Nautical
Department, Merchant Marine Polytechnic Semarang, Supervisor
Material (I): Capt. Rudy Susanto, M.Pd, Supervisor Methodology and
Writing (II): Okvita Wahyuni, S.ST, MM.
Safety lifeboats equipment were not working optimally and less skilled
crew in the operation of lifeboats on vessel MV. DK 02 will affect the safety of
the crew on vessel in carrying out the operation of the safety boat correctly to run
in any inspection as well as doing familirization to crew the vessel and carry out
abbandonship drill according to the schedule because it affects the operation of
the safety equipment lifeboats optimally this creating a state of the ship is safe,
conducive and ship operation goes smoothly.
Given the importance of the function of safety devices lifeboat and
knowledge crew boats in the operation of lifeboats, hence the existence of tools
lifeboat should be treated in accordance with inspection and do familirization and
training abbandonship drill on schedule, in writing thus essay the author used
qualitative methods to approach the problem of observational analytical , Ie by
observing the existing activities and carry out interviews directly to the crew
aboard the MV. DK 02.
With the implementation of inspection of safety equipment lifeboat and
do familirization to crew the vessel and carry out abbandonship drills on time thus
avoiding any obstacles to the operation of the safety of the boat so as to create an
atmosphere that is safe, conducive and created operational ship smoothly, at the
end of chart paper the author presents conclusions and suggestions.
Keywords: Optimalization, Lifeboat, Abbandonship Dril
Measurement of the CKM angle gamma from a combination of B->Dh analyses
No full textA combination of three LHCb measurements of the CKM angle gamma is presented. The decays B->DK and B->Dpi are used, where D denotes an admixture of D0 and D0-bar mesons, decaying into K+K-, pi+pi-, K+-pi-+, K+-pi-+pi+-pi-+, KSpi+pi-, or KSK+K- final states. All measurements use a dataset corresponding to 1.0 fb-1 of integrated luminosity. Combining results from B->DK decays alone a best-fit value of gamma = 72.0 deg is found, and confidence intervals are set gamma in [56.4,86.7] deg at 68% CL, gamma in [42.6,99.6] deg at 95% CL. The best-fit value of gamma found from a combination of results from B->Dpi decays alone, is gamma = 18.9 deg, and the confidence intervals gamma in [7.4,99.2] deg or [167.9,176.4] deg at 68% CL, are set, without constraint at 95% CL. The combination of results from B->DK and B->Dpi decays gives a best-fit value of gamma = 72.6 deg and the confidence intervals gamma in [55.4,82.3] deg at 68% CL, gamma in [40.2,92.7] deg at 95% CL are set. All values are expressed modulo 180 deg, and are obtained taking into account the effect of D0-D0bar mixing
PENANGGULANGANAN BONGKAR MUATAN BATU BARA YANG TERBAKAR PADA MV. DK 01
No full textArva Novella Ghoibunka, 49124468.N, Unloading Cargo Handling Coal Has Been Burned in MV. DK 01 Supervisor : (1) Dr. Capt. Tri Cahyadi,M.H,M.Mar (2) Drs.Marmin,MM
Implementation of the unloading of coal that has been burning required good handling and correct . Fire load should be prevented by handling cargo for on the boat, but the fires often occur during the process of demolition . On that basis the authors formulate the problem of how the process of loading the coal has been burned in the MV. DK 01 and what are the actions to be taken by the ship crew to prevent coal cargo fires . In writing this essay , the author describes the theory of handling unload coal has been burned are used in the manufacture of the research report and as a basis for solving the existing problems in the research process . Based on the results of research by the author during practice sailing on the MV. DK 01 regarding the handling of cargo unloading coal has been burned discovered the existence of problems in the implementation of the burning unloading cargo cover over the cargo handling is not exactly on board , the lack of coordination between the crew aboard the shipper regarding the nature of the charge , the charge is too old to be in hatch , less precise fire fighting coal in the hold and the less skilled crane operator . Due to the above problems during the process of unloading the coal cargo has been delayed . From the above analysis it can be concluded that the implementation of the process of loading and unloading on the ship MV. DK 01 is still often experience problems, especially during the demolition process, which is due to the lack of regular monitoring of the state of charge of coal for sailing boats and actions taken by the boat crew to avoid the charge of coal fires are still not in accordance with the provisions contained in the MSDS ship namely by using foam, carbon dioxide, dry chemical and water fog. The author's suggestion is better handling of cargo fires during the process of demolition remain guided by or in accordance with the demolition of the existing procedures on board and international rules as listed in the IMSBC, Better when it will carry out the process of loading the first implementation of a briefing or safety meeting the ship with the foreman to exchange information on measures to be taken to prevent the occurrence of fire load, so if there is a fire load, fire can be extinguished quickly and precisely.
Keywords : Cargo Handling, Coal, and Burne
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