Momentum-Space Entanglement Spectrum of Bosons and Fermions with Interactions

We study the momentum space entanglement spectra of bosonic and fermionic formulations of the spin-1/2 XXZ chain with analytical methods and exact diagonalization. We investigate the behavior of the entanglement gaps, present in both partitions, across quantum phase transitions in the XXZ chain. In both cases, finite size scaling reveals that the entanglement gap closure does not occur at the physical transition points. For bosons, we find that the entanglement gap observed in [Thomale et al., Phys. Rev. Lett. 105, 116805 (2010)] depends on the scaling dimension of the conformal field theory as varied by the XXZ anisotropy. For fermions, the infinite entanglement gap present at the XX point persists well past the phase transition at the Heisenberg point. We elaborate on how these shifted transition points in the entanglement spectra may in fact support the numerical study of physical transitions in the momentum space density matrix renormalization group.Comment: 4+e pages, 4 figures; 3 pages of supplementary materia

Concomitant arginine-vasopressin and hydrocortisone therapy in severe septic shock: association with mortality

Purpose: To evaluate the association between concomitant arginine-vasopressin (AVP)/hydrocortisone therapy and mortality in severe septic shock patients. Methods: This retrospective study included severe septic shock patients treated with supplementary AVP. To test the association between concomitant AVP/hydrocortisone use and mortality, a multivariate regression and Cox model (adjusted for admission year, initial AVP dosage and the Sepsis-related Organ Failure Assessment score before AVP) as well as a propensity score-based analysis were used. In both models, intensive care unit (ICU) and 28-day mortality served as outcome variables. Results: One hundred fifty-nine patients were included. Hydrocortisone was administered to 76 (47.8%) at a median daily dosage of 300 (200-300)mg. In the multivariate logistic regression model, concomitant use of AVP and hydrocortisone was associated with a trend towards lower ICU (OR, 0.51; CI 95%, 0.24-1.08; p=0.08) and 28-day (HR, 0.69; CI 95%, 0.43-1.08; p=0.11) mortality. The probability of survival at day 28, as predicted by the regression model, was significantly higher in patients treated with concomitant AVP and hydrocortisone compared to those receiving AVP without hydrocortisone (p=0.001). In a propensity score-based analysis, ICU (45 vs. 65%; OR, 0.69; CI 95% 0.38-1.26; p=0.23) and 28-day mortality (35.5 vs. 55%; OR, 0.59; CI 95%, 0.27-1.29; p=0.18) was not different between patients treated with (n=40) or without concomitant hydrocortisone (n=40). Conclusion: Concomitant AVP and hydrocortisone therapy may be associated with a survival benefit in septic shock. An adequately powered, randomised controlled trial appears warranted to confirm these preliminary, hypothesis-generating result

Homelessness and the meaning of home: rooflessness or rootlessness?

This paper has several objectives. These are: (1) to analyse the meaning of homelessness in the light of recent contributions on the meaning of home: (2) to criticize some current perspectives on homelessness as a social problem; (3) to identify and explore a number of different dimensions of the meaning of home and homelessness; (4) to reassess the evidence on the context of home and homelessness, and re-examine the meaning of homelessness in the light of that reassessed evidence; and (5) to explain the political meaning of homelessness as expressed in official definitions, legislation and state provision (or lack of it)

Increased hypoglycemia associated with renal failure during continuous intravenous insulin infusion and specialized nutritional support

Objective: To evaluate glycemic control for critically ill, hyperglycemic trauma patients with renal failure who received concurrent intensive insulin therapy and continuous enteral (EN) or parenteral nutrition (PN). Methods: Adult trauma patients with renal failure, who were given EN or PN concurrently with continuous graduated intravenous regular human insulin (RHI) infusion for at least 3 days were evaluated. Our conventional RHI algorithm was modified for those with renal failure by allowing greater changes in blood glucose concentrations (BG) before the infusion rate was escalated. BG was determined every 1-2 hours while receiving the insulin infusion. BG control was evaluated on the day prior to RHI infusion and for a maximum of 7 days while receiving RHI. Target BG during the RHI infusion was 70 to 149 mg/dL (3.9 to 8.3 mmol/L). Glycemic control and incidence of hypoglycemia for those with renal failure were compared to a historical cohort of critically ill, hyperglycemic trauma patients without renal failure given our conventional RHI algorithm. Results: Twenty-one patients with renal failure who received the modified RHI algorithm were evaluated and compared to forty patients without renal failure given our conventional RHI algorithm. Average BG was significantly greater for those with renal failure (133 + 14 mg/dL or 7.3 + 0.7 mmol/L) compared to those without renal failure (122 + 15 mg/dL or 6.8 + 0.8 mmol/L), respectively (p \u3c 0.01). Patients with renal failure experienced worsened glycemic variability with 16.1 + 3.3 hours/day within the target BG range, 6.9 + 3.2 hours/day above the target BG range, and 1.4 + 1.1 hours below the target BG range compared to 19.6 + 4.7 hours/day (p \u3c 0.001), 3.4 + 3.0 hours/day (p \u3c 0.001), and 0.7 + 0.8 hours/day (p \u3c 0.01) for those without renal failure, respectively. Moderate hypoglycemia (\u3c 60 mg/dL or \u3c 3.3 mmol/L) occurred in 76% of patients with renal failure compared to 35% without renal failure (p \u3c 0.005). Severe hypoglycemia (BG \u3c 40 mg/dL or \u3c 2.2 mmol/L) occurred in 29% of patients with renal failure compared to none of those without renal failure (p \u3c 0.001). Conclusion: Despite receiving a modified RHI infusion, critically ill trauma patients with renal failure are at higher risk for developing hypoglycemia and experience more glycemic variability than patients without renal failure

Russo-Finnish Relations, 1937-1947

In 1967 the Finnish Republic celebrated Its fiftieth anniversary. That Finland can celebrate her freedom is rather amazing In view of the Soviet Union’s domination, with the exception of Greece, of every nation In East Europe from the Baltic to the Mediterranean. It is hard to believe that Finland, which In the period from 1939 to 19444 fought two wars against the Soviet Union and lost both, can still be independent. In the 1920's and 1930’s Finland was regarded, by foreigners and Finns alike, as the extreme outpost of the Western "civilized" world against the East. Prevailing Finnish attitudes toward the Russians were antagonistic In the extreme. One Russian diplomat of the 1930's characterized the Finn's attitude as "a zoological hate." This "zoological hate" carried over into Finnish-Soviet relations, which were strained from the time of Finland's declaration of independence In 1917 to the end of the Second World War. Considering the above factors, It would appear inconceivable that Soviet leaders would disregard any chance to Incorporate Finland Into the Union of Soviet Socialist Republics. The first such chance to incorporate Finland occurred for Russia with the completion of the Nazi-Soviet Non-Aggression Pact of 1939. Prior to that time, Finnish Independence was based upon the opposing interests of Germany and Russia In the Baltic. It was this conflict of Interests that kept Finland free from Soviet control. However, once the Pact was concluded and German attention turned westward and northward, Finland was open to Soviet aggression. Certainly after the Winter War of 1939-1940, the Soviet Union could have Incorporated Finland, given the fact that although Finland's resistance was heroic, Russia's victory was complete. Surprisingly, however, Russia was content with limited gains: the Hanko naval base and a few hundred square miles of border territory and other minor concessions. In view of this restraint, it should be apparent that the primary goal of the Soviet Union was not to terminate Finland's independence but rather to preserve It In order to advance other Soviet policies In Europe. This becomes even more apparent when, following the "Continuation War" and three years of stalemated warfare, Russian troops finally broke through Finnish defense lines. All Finland lay open to Russian occupation. The Western Allies were not greatly concerned with Finland's fate. Even had they been, it is doubtful that any nation could have prevented the Soviet Union from absorbing Finland given the situation In Europe from 1944 to 1947. And yet, once again, the Soviet government ignored the opportunity of incorporating Finland. In view of these facts, quite naturally the historian wonders why, after two successful wars, the Soviet government settled the Finnish affair without ending the independence of Finland. It is the contention of this thesis that Finland remained independent only because the Soviet Union allowed her to do so. Be it noted that such an explanation is not generally accepted. Prominent historians advance two major explanations for Finland's continued freedom from Soviet domination: the performance of the Finnish Army and the interest and protection of the Western democratic powers

Potential of three microbial bio-effectors to promote maize growth and nutrient acquisition from alternative phosphorous fertilizers in contrasting soils

Background Agricultural production is challenged by the limitation of non-renewable resources. Alternative fertilizers are promoted but they often have a lower availability of key macronutrients, especially phosphorus (P). Biological inoculants, the so-called bio-effectors (BEs), may be combined with these fertilizers to improve the nutrient use efficiency. Methods The goal of this study was to assess the potential of three BEs in combination with alternative fertilizers (e.g., composted manure, biogas digestate, green compost) to promote plant growth and nutrient uptake in soils typical for various European regions. Pot experiments were conducted in Czech Republic, Denmark, Germany, Italy, and Switzerland where the same variety of maize was grown in local soils deficient in P in combination with alternative fertilizers and the same set of BEs (Trichoderma, Pseudomonas, and Bacillus strains). Common guidelines for pot experiment implementation and performance were developed to allow data comparison, and soils were analyzed by the same laboratory. Results Efficiency of BEs to improve maize growth and nutrient uptake differed strongly according to soil properties and fertilizer combined. Promising results were mostly obtained with BEs in combination with organic fertilizers such as composted animal manures, fresh digestate of organic wastes, and sewage sludge. In only one experiment, the nutrient use efficiency of mineral recycling fertilizers was improved by BE inoculation. Conclusions These BE effects are to a large extent due to improved root growth and P mobilization via accelerated mineralization

LABOR LAW - NATIONAL LABOR RELATIONS ACT - NECESSITY OF A WRITTEN CONTRACT TO MEET REQUIREMENT OF GOOD FAITH COLLECTIVE BARGAINING

Having found that the petitioner, by refusing to sign an agreement reached with the union, was refusing to bargain collectively, the National Labor Relations Board ordered it to bargain by signing a written agreement. The Circuit Court of Appeals for the Sixth Circuit directed enforcement of the board\u27s order. On certiorari to that court, held that the board\u27s order should be enforced. H.J. Heinz Co. v. National Labor Relations Board, (U. S. 1941) 61 S. Ct. 320, affirming (C. C. A. 6th, 1940) 110 F. (2d) 843