Ultrafast low-loss 42-70 GHz differential SPDT switch in 0.35 μm SiGe technology

This paper presents an ultrafast wideband low-loss single-pole double-throw (SPDT) differential switch in 0.35 µ m SiGe bipolar technology. The proposed topology adopting current-steering technique results in a total measured switching time of 75 ps , which suggests a maximum switching rate of 13 Gb/s, the fastest ever reported at V-band. In addition, the switch exhibits an insertion loss lower than 1.25 dB and an isolation higher than 18 dB from 42 GHz to 70 GHz. © 2006 IEEE.

Energy levels, radiative rates and lifetimes for transitions in Br-like ions with 38 ≤ Z ≤ 42

Energy levels and radiative rates for transitions in five Br-like ions (Sr IV, Y V, Zr VI, Nb VII and Mo VIII) are calculated with the general-purpose relativistic atomic structure package (GRASP). Extensive configuration interaction has been included and results are presented among the lowest 31 levels of the 4s²4p⁵, 4s²4p⁴4d and 4s4p⁶ configurations. Lifetimes for these levels have also been determined, although unfortunately no measurements are available with which to compare. However, recently theoretical results have been reported by Singh et al (2013 Phys. Scr. 88 035301) using the same GRASP code. But their reported data for radiative rates and lifetimes cannot be reproduced and show discrepancies of up to five orders of magnitude with the present calculations.

Escaping the Holocaust: human and health capital of refugees to the United States, 1940-42

The large-scale persecution of Jews during World War II generated massive refugee movements. Using data from 20,441 predominantly Jewish passengers from 19 countries traveling from Lisbon to New York between 1940 and 1942, we analyze the last wave of refugees escaping the Holocaust and verify the validity of height as a proxy for human and health capital. We further show this episode of European migration displays well-known features of migrant self-selection: early migrants were taller than late migrants; a large migrant stock reduces migrant selectivity; and economic barriers to migration
apply. Our findings show that Europe experienced substantial losses in human and health capital while the US benefitted from the immigration of European refugees.

Unesp Ciência, 2013, ano 4, número 42

Revista elaborada pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

Association of N-acetylaspartate and cerebrospinal fluid Aβ42 in dementia.

The interplay of amyloid and mitochondrial function is considered crucial in the pathophysiology of Alzheimer's disease (AD). We tested the association of the putative marker of mitochondrial function N-acetylaspartate (NAA) as measured by proton magnetic resonance spectroscopy within the medial temporal lobe and cerebrospinal fluid amyoid-β42 (Aβ42), total Tau and pTau181. 109 patients were recruited in a multicenter study (40 mild AD patients, 14 non-AD dementia patients, 29 mild cognitive impairment (MCI) AD-type patients, 26 MCI of non-AD type patients). NAA correlated with Aβ42 within the AD group. Since the NAA concentration is coupled to neuronal mitochondrial function, the correlation between NAA and Aβ42 may reflect the interaction between disrupted mitochondrial pathways and amyloid production.

SUCLG2 identified as both a determinator of CSF Aβ1-42 levels and an attenuator of cognitive decline in Alzheimer's disease.

Cerebrospinal fluid amyloid-beta 1-42 (Aβ1-42) and phosphorylated Tau at position 181 (pTau181) are biomarkers of Alzheimer's disease (AD). We performed an analysis and meta-analysis of genome-wide association study data on Aβ1-42 and pTau181 in AD dementia patients followed by independent replication. An association was found between Aβ1-42 level and a single-nucleotide polymorphism in SUCLG2 (rs62256378) (P = 2.5×10(-12)). An interaction between APOE genotype and rs62256378 was detected (P = 9.5 × 10(-5)), with the strongest effect being observed in APOE-ε4 noncarriers. Clinically, rs62256378 was associated with rate of cognitive decline in AD dementia patients (P = 3.1 × 10(-3)). Functional microglia experiments showed that SUCLG2 was involved in clearance of Aβ1-42.

Trends and characteristics of attendance at the emergency department of a Swiss university hospital: 2002-2012.

BACKGROUND: The numbers of people attending emergency departments (EDs) at hospitals are increasing. We aimed to analyse trends in ED attendance at a Swiss university hospital between 2002 and 2012, focussing on age-related differences and hospital admission criteria. METHODS: We used hospital administrative data for all patients aged ≥16 years who attended the ED (n = 298,306) at this university hospital between 1 January 2002, and 31 December 2012. We descriptively analysed the numbers of ED visits according to the admission year and stratified by age (≥65 vs <65 years). RESULTS: People attending the ED were on average 46.6 years old (standard deviation 20 years, maximum range 16‒99 years). The annual number of ED attendances grew by n = 6,639 (27.6%) from 24,080 in 2002 to 30,719 in 2012. In the subgroup of patients aged ≥65 the relative increase was 42.3%, which is significantly higher (Pearson's χ2 = 350.046, df = 10; p = 0.000) than the relative increase of 23.4% among patients <65 years. The subgroup of patients ≥65 years attended the ED more often because of diseases (n = 56,307; 85%) than accidents (n = 9,844; 14.9%). This subgroup (patients ≥65 years) was also more often admitted to hospital (Pearson's χ2 = 23,377.190; df = 1; p = 0.000) than patients <65 years. CONCLUSIONS: ED attendance of patients ≥65 years increased in absolute and relative terms. The study findings suggest that staff of this ED may want to assess the needs of patients ≥65 years and, if necessary, adjust the services (e.g., adapted triage scales, adapted geriatric screenings, and adapted hospital admission criteria).

Archives parlementaires de 1787 à 1860 ; 34-51. Assemblée nationale législative. Série 1 / Tome 42 / impr. par ordre du Sénat et de la Chambre des députés ; sous la dir. de M. J. Mavidal,... et de M. E. Laurent,... ; avec la collab. de MM. E. Tonnier et C. Pionnier

Collection : Les archives de la Révolution française ; 3.1

Œuvres manuscrites de Gustave Flaubert (manuscrits définitifs, avec copies annotées, brouillons et notes). VIII Trois contes. Premier volume

F. 1 – 85. Trois contes. Manuscrits autographes définitifs. F. 1 – 30 (foliotation de l’auteur). Un Cœur simple, chapitre I (f. 1-2) ; chapitre II (f. 2-10) ; chapitre III (f. 10-21) ; chapitre IV (f. 21-29) ; chapitre V (f. 29-30). F. 31 – 57 (foliotés 1 – 27 par l’auteur). La Légende de saint Julien l’Hospitalier, chapitre I (f. 31-41) ; chapitre II (f. 42-51) ; chapitre III (f. 52-57). F. 58-85 (foliotés 2 – 28 par l’auteur). Hérodias, chapitre I (f. 58-65) ; chapitre II (f. 66-75) ; chapitre III (f. 76-85). F. 85bis-232. Trois contes. Copies corrigées ayant servi pour l’impression de l’édition originale (Charpentier, 1877). F. 85bis-141 (foliotés 2-55 par le copiste). Un Cœur simple, page de titre (f. 85bis) ; chapitre I (f. 86-88) ; chapitre II (f. 89-102) ; chapitre III (f. 103-122) ; chapitre IV (f. 123-137) ; chapitre V (f. 138-141). Au f. 86, indications de l’imprimeur au crayon bleu ; aux f. 86, 91, 97, 103, 109, 115, 119, 125, 132, noms des typographes au crayon ; aux f. 90, 98, 99, 101, 105, 112, 114, 117, 121, 123, 134, corrections de la main de l’auteur. F. 142-183 (foliotés 2-41 par le copiste). La Légende de saint Julien l’Hospitalier, page de titre (f. 142) ; chapitre I (f.143-159) ; chapitre II (f.160-174) ; chapitre III (f.175-183). Aux f. 143, 153, 163, 173, 181, noms des typographes au crayon ; aux f. 144, 147, 148, 150, 152, 154, 155, 157, 158, 159, 161, 162, 164, 166, 167, 168, 169, 171, 172, 174, 179, 180, 182, corrections de la main de l’auteur. F. 184-232 (foliotés 2-48 par le copiste). Hérodias, page de titre (f. 184) ; chapitre I (f. 185-198) ; chapitre II (f. 199-216) ; chapitre III (f. 217-232). Aux f. 185, 195, 203, 213, 220, 226, 231, noms des typographes au crayon ; aux f. 188, 192, 193, 199, 200, 201, 205, 210, 214, 215, 217, 220, 222, 223, 227, 228, corrections de la main de l’auteur. F. 233-759. Trois contes. Manuscrits de travail, brouillons, plans, scénarios et notes. F. 233-406. Un cœur simple. F. 233-268 (foliotés 2-6 et 8-35 par l’auteur). Manuscrit de travail : page de titre portant « Un cœur simple./manuscrit » (f. 233) ; chapitres I-II (f. 234-249) ; chapitre III (f. 249-258) ; chapitre IV (f. 258-267) ; chapitre V (f. 267-268). F. 269-374. Brouillons foliotés par l’auteur (alternance de chiffres arabes, ou romains, de lettres ; les feuillets sont utilisés recto-verso, les versos étant rédigés tête bêche, sauf f. 275v, 290v, 291v, 352v), page de titre portant « Un cœur simple/brouillons » (f. 269) ; chapitre I (f. 270-273) ; chapitre II (f. 274-298) ; chapitre III (f. 298-324) ; chapitre IV (f. 325-345) ; chapitre V (f. 346-353) (les rectos et les versos peuvent se rapporter à des chapitres différents). F. 375-406. Plans, résumé, notes, scénarios : page de titre portant « Histoire d’un cœur simple » de la main de l’auteur (f. 375) ; plans (f. 376, 387v) ; résumé (f. 381v) ; chronologie (f. 387) ; scénario de la fin du chapitre IV (f. 383) ; brouillon du début du chapitre I (f. 382) ; notes non autographes sur la procession (f. 377) ; notes autographes sur Félicité et la religion (f. 381) ; notes sur le catéchisme et l’histoire sainte (f. 384) ; notes sur la pneumonie et la pleurésie (f. 385-386) ; notes sur les perroquets (f. 388) ; notes sur la messe (f. 389) ; scénarios (f. 390-406).