The promised city: openness and immigration in the making of a world metropolis

This article was the keynote address for a conference organized by the Federal Reserve Bank of New York in April 2005, "Urban Dynamics in New York City." The goal of the conference was threefold: to examine the historical transformations of the engine-of-growth industries in New York and distill the main determinants of the city's historical dominance as well as the challenges to its continued success; to study the nature and evolution of immigration flows into New York; and to analyze recent trends in a range of socioeconomic outcomes, both for the general population and recent immigrants more specifically.Economic conditions - New York (N.Y.) ; Federal Reserve District, 2nd ; Immigrants

Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping

The use of an unidirectional auxiliary pump at approximately 1600 nm in conjunction with a 980 nm primary pump for Ytterbium (Yb3+)-sensitized-Thulium (Tm3+)-doped single mode silica fiber (YTDF) is found to be very effective to activate the most significant resonance energy transfer from Yb3+ to Tm3+, in order to obtain significant emission in the near-infrared. The resulting laser performance of the YTDF at 1874 nm is reported here. The influence of the Tm3+/Yb3+ concentration, their relative proportions and the host glass composition on the lasing efficiency has also been investigated to optimize the fiber parameters for maximum laser output power

Justice in Black and Brown: The impact of political control and representative bureaucracy on street level outcomes

This study tests the explanatory power of two prominent public administration theories—political control and representative bureaucracy—in understanding disparities in public service provision. While prior research focused on street-level bureaucracy, we study here how political and group identities of top elected law enforcement officials affect the distribution of youth arrests, alternatives, and prosecutions among minority groups. Data from Florida's 67 counties between 2015 and 2020 demonstrate that sheriff's and state attorney's party affiliation, race, and ethnicity do affect street-level outcomes. However, the effects are more pronounced for race than ideology. Also, representative bureaucracy appears more relevant for race than ethnicity and explains the behavior of Black sheriffs but not Black state attorneys

Repulsive Casimir forces

We discuss repulsive Casimir forces between dielectric materials with non trivial magnetic susceptibility. It is shown that considerations based on naive pair-wise summation of Van der Waals and Casimir Polder forces may not only give an incorrect estimate of the magnitude of the total Casimir force, but even the wrong sign of the force when materials with high dielectric and magnetic response are involved. Indeed repulsive Casimir forces may be found in a large range of parameters, and we suggest that the effect may be realized in known materials. The phenomenon of repulsive Casimir forces may be of importance both for experimental study and for nanomachinery applications

The Naturalistic Flight Deck System: An Integrated System Concept for Improved Single-Pilot Operations

This paper reviews current and emerging operational experiences, technologies, and human-machine interaction theories to develop an integrated flight system concept designed to increase the safety, reliability, and performance of single-pilot operations in an increasingly accommodating but stringent national airspace system. This concept, know as the Naturalistic Flight Deck (NFD), uses a form of human-centered automation known as complementary-automation (or complemation) to structure the relationship between the human operator and the aircraft as independent, collaborative agents having complimentary capabilities. The human provides commonsense knowledge, general intelligence, and creative thinking, while the machine contributes specialized intelligence and control, extreme vigilance, resistance to fatigue, and encyclopedic memory. To support the development of the NFD, an initial Concept of Operations has been created and selected normal and non-normal scenarios are presented in this document

Identification of Class I HLA T Cell Control Epitopes for West Nile Virus

The recent West Nile virus (WNV) outbreak in the United States underscores the importance of understanding human immune responses to this pathogen. Via the presentation of viral peptide ligands at the cell surface, class I HLA mediate the T cell recognition and killing of WNV infected cells. At this time, there are two key unknowns in regards to understanding protective T cell immunity: 1) the number of viral ligands presented by the HLA of infected cells, and 2) the distribution of T cell responses to these available HLA/viral complexes. Here, comparative mass spectroscopy was applied to determine the number of WNV peptides presented by the HLA-A*11:01 of infected cells after which T cell responses to these HLA/WNV complexes were assessed. Six viral peptides derived from capsid, NS3, NS4b, and NS5 were presented. When T cells from infected individuals were tested for reactivity to these six viral ligands, polyfunctional T cells were focused on the GTL9 WNV capsid peptide, ligands from NS3, NS4b, and NS5 were less immunogenic, and two ligands were largely inert, demonstrating that class I HLA reduce the WNV polyprotein to a handful of immune targets and that polyfunctional T cells recognize infections by zeroing in on particular HLA/WNV epitopes. Such dominant HLA/peptide epitopes are poised to drive the development of WNV vaccines that elicit protective T cells as well as providing key antigens for immunoassays that establish correlates of viral immunity. © 2013 Kaabinejadian et al

More Nipple Cup Drinkers to Fewer Pigs on the Day of Weaning Into a Conventional Nursery Results in Reduced Aggression and More Visits to the Drinker

More nipple cup drinkers to fewer pigs on the day of weaning into a conventional nursery results in reduced aggression and more visits to the drinker. Background: Piglets develop their drinking behaviour over the first few days after weaning. Enhancing drinking opportunities for nursery pigs can affect growth, health, welfare, and overall profit. The objectives of this study were to determine how 1, 2, or 3 drinkers per pen affected drinker visit numbers, length of visits at the drinker, and aggressive interactions in the drinker vicinity on placement day for nursery pigs. Methods and Findings: One-hundred and fifty crossbred gilts (21 ± 4 days of age at weaning) weighing 5.38 ± 2.65 Kg were enrolled and assigned to pens by body weight with 25 pigs per pen. Six pens were used with 2 pens per treatment. Each pen contained 1, 2, or 3 stainless steel nipple cup drinkers. Four measures were collected: number and length of visits to the drinker which started each time the individual nursery pig’s head was in the drinker and terminated when the pig’s head moved out of the drinker for a period lasting 5 s or more and number and length of aggressive interactions in the drinker vicinity defined as any fight, bully, head-knock, or chase which occurred in a radius of 0.61 m or less from the edge of the drinker. Total number and length of visits to the nipple cup drinker were greatest for treatment 2 (2 drinkers per pen; 1,894 ± 289 visits and 21,413 ± 6,236 s) and lowest for treatment 1 (1 drinker per pen; 1,129 ± 88 visits and 13,277 ± 1,117). Pigs in treatment pens given 3 drinkers had the lowest total number (676 ± 269 interactions) and the shortest length (4,614 ± 1,912) of aggressive interactions in the vicinity of the drinkers. Conclusion: Offering multiple drinkers provided more frequent and longer water access along with decreased aggression near the water source which could improve nursery pig welfare on placement day

The prevalence and importance of frailty in heart failure with reduced ejection fraction – an analysis of PARADIGM-HF and ATMOSPHERE

Aims: Frailty, characterized by loss of homeostatic reserves and increased vulnerability to physiological decompensation, results from an aggregation of insults across multiple organ systems. Frailty can be quantified by counting the number of ‘health deficits’ across a range of domains. We assessed the frequency of, and outcomes related to, frailty in patients with heart failure and reduced ejection fraction (HFrEF). Methods and results: Using a cumulative deficits approach, we constructed a 42‐item frailty index (FI) and applied it to identify frail patients enrolled in two HFrEF trials (PARADIGM‐HF and ATMOSPHERE). In keeping with previous studies, patients with FI ≤0.210 were classified as non‐frail and those with higher scores were divided into two categories using score increments of 0.100. Clinical outcomes were examined, adjusting for prognostic variables. Among 13 625 participants, mean (± standard deviation) FI was 0.250 (0.10) and 8383 patients (63%) were frail (FI >0.210). The frailest patients were older and had more symptoms and signs of heart failure. Women were frailer than men. All outcomes were worse in the frailest, with high rates of all‐cause death or all‐cause hospitalization: 40.7 (39.1–42.4) vs. 22.1 (21.2–23.0) per 100 person‐years in the non‐frail; adjusted hazard ratio 1.63 (1.53–1.75) (P < 0.001). The rate of all‐cause hospitalizations, taking account of recurrences, was 61.5 (59.8–63.1) vs. 31.2 (30.3–32.2) per 100 person‐years (incidence rate ratio 1.76; 1.62–1.90; P < 0.001). Conclusion: Frailty is highly prevalent in HFrEF and associated with greater deterioration in quality of life and higher risk of hospitalization and death. Strategies to prevent and treat frailty are needed in HFrEF

Sturgeon in the Sacramento–San Joaquin Watershed: New Insights to Support Conservation and Management

The goal of a day-long symposium on March 3, 2015, Sturgeon in the Sacramento–San Joaquin Watershed: New Insights to Support Conservation and Management, was to present new information about the physiology, behavior, and ecology of the green (Acipenser medirostris) and white sturgeon (Acipenser transmontanus) to help guide enhanced management and conservation efforts within the Sacramento–San Joaquin watershed. This symposium identified current unknowns and highlighted new electronic tracking technologies and physiological techniques to address these knowledge gaps. A number of presentations, each reviewing ongoing research on the two species, was followed by a round-table discussion, in which each of the participants was asked to share recommendations for future research on sturgeon in the watershed. This article presents an in-depth review of the scientific information presented at the symposium with a summary of recommendations for future research

Acoustic detection and quantification of benthic egg beds of the squid Loligo opalescens in Monterey Bay, California

Author Posting. © Acoustical Society of America, 2006. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 119 (2006): 844-856, doi:10.1121/1.2149840.The squid Loligo opalescens is a key species in the nearshore pelagic community of California, supporting the most valuable state marine fishery, yet the stock biomass is unknown. In southern Monterey Bay, extensive beds occur on a flat, sandy bottom, water depths 20–60 m, thus sidescan sonar is a prima-facie candidate for use in rapid, synoptic, and noninvasive surveying. The present study describes development of an acoustic method to detect, identify, and quantify squid egg beds by means of high-frequency sidescan-sonar imagery. Verification of the method has been undertaken with a video camera carried on a remotely operated vehicle. It has been established that sidescan sonar images can be used to predict the presence or absence of squid egg beds. The lower size limit of detectability of an isolated egg bed is about 0.5 m with a 400-kHz sidescan sonar used with a 50-m range when towed at 3 knots. It is possible to estimate the abundance of eggs in a region of interest by computing the cumulative area covered by the egg beds according to the sidescan sonar image. In a selected quadrat one arc second on each side, the estimated number of eggs was 36.5 million.funding from the National Sea Grant, Essential Fish Habitat Program, Sea Grant Project No. NA16RG2273