Why Are There Revisions to the Jobs Numbers?

At the beginning of each month, the Bureau of Labor Statistics (BLS) reports the change in payroll employment for the previous month. This estimate of jobs gained or lost over the month is closely watched by policymakers and those who work in financial markets and the media. When the estimate is revised in subsequent months, however, data users sometimes perceive a very different picture of the job market than what was initially reported. Data users frequently ask why the number was revised. The short answer is, the revised estimate includes additional information that was not available at the time of the initial release— information that makes the revised estimate more accurate. This BEYOND THE NUMBERS article explains the data collection process that BLS conducts every month to produce the estimate of U.S. employment. The article also should help clarify why BLS releases revisions to the initial estimate so that users will understand the change, if any, in the data

A TYPICAL FARM SERIES: DEVELOPMENT AND APPLICATION TO A MISSISSIPPI DELTA FARM

Farm Management,

Mapping the Reading Improvement Sector in New York City The Role of External Support Providers in Improving K-3 Reading Outcomes

This report shares the results of a project designed to help build the collective capacity and increase the impact of the external support providers working to improve K-3 reading outcomes in New York City public elementary schools. In the first phase of the project, we identified all the programs in what we call the K-3 reading improvement sector in NYC 2014-15. In the second phase, we examined the extent to which a sample of these programs have the goals, resources, and personnel to improve reading outcomes system-wide. In the third phase, we mapped the relationships among a sample of programs in the sector in 2016-17, the sources they rely on to support their work, and the NYC schools with whom they partner. Making these relationships visible shows the extent to which students from different backgrounds and schools can get access to information, resources, and expertise, and the extent to which programs are in a position to increase their collective impact through coordination and collaboration. Among the findings: Over 100 programs are working in the K-3 Reading Improvement Sector in NYC The sample programs in the sector focus on a wide range of reading-related goals, but a limited number of programs have demonstrated effectiveness Twenty-six sample programs are connected to 161 different schools comprising 16% of all elementary schools in NYC (including 28% of the elementary schools in the Bronx and 26% of the elementary schools in Manhattan); and the programs are partnering with schools with relatively high levels of need in terms of both performance and poverty Just over half of the sample programs describe themselves as collaborating or partnering with at least one other sample program, but almost half were not in regular contact with any other sample program Sample programs received support from 57 different funders and 75 different sources for literacy expertise with little overlap These results suggest that sector programs have the goals, services, and personnel that could help improve K-3 reading outcomes in New York City; they have the connections to share resources and expertise with a large percentage of elementary schools; and several clusters of connected programs could serve as a powerful force for increased focus and collaboration in reading improvement across the city. However, the collective impact of the sector suffers from the evidence that goals vary considerably. Student and teacher programs differ in terms of their goals and personnel, and only a few programs have had formal outside evaluations completed. In addition, many of the sample programs in the sector are working in isolation from other sample programs and are informed by a wide range of sources of funding and expertise that are themselves likely to be only loosely connected. Although the clusters of collaborating and frequently connected programs could serve as a basis for expansion within the sector, the unconnected programs and the disparate sources of funding and expertise suggest that explicit strategies will need to be developed to support greater coherence in the sector and to increase the effectiveness of the sector overall

Carry-over effects of food supplementation on recruitment and breeding performance of long-lived seabirds

Supplementation of food to wild animals is extensively applied as a conservation tool to increase local production of young. However, in long-lived migratory animals, the carry-over effects of food supplementation early in life on the subsequent recruitment of individuals into natal populations and their lifetime reproductive success are largely unknown. We examine how experimental food supplementation early in life affects: (i) recruitment as breeders of kittiwakes Rissa tridactyla born in a colony on Middleton Island (Alaska) between 1996 and 2006 (n = 1629) that bred in the same colony through 2013 (n = 235); and (ii) breeding success of individuals that have completed their life cycle at the colony (n = 56). Birds were raised in nests that were either supplemented with food (Fed) or unsupplemented (Unfed). Fledging success was higher in Fed compared with Unfed nests. After accounting for hatching rank, growth and oceanic conditions at fledging, Fed fledglings had a lower probability of recruiting as breeders in the Middleton colony than Unfed birds. The per-nest contribution of breeders was still significantly higher for Fed nests because of their higher productivity. Lifetime reproductive success of a subset of kittiwakes that thus far had completed their life cycle was not affected by the food supplementation during development. Our results cast light on the carry-over effects of early food conditions on the vital rates of long-lived animals and support food supplementation as an effective conservation strategy for long-lived seabirds

Cold gas in the Intra Cluster Medium: implications for flow dynamics and powering optical nebulae

We show that the mechanical energy injection rate generated as the intra-cluster medium (ICM) flows around cold clouds may be sufficient to power the optical and near infra-red emission of nebulae observed in the central regions of a sample of seven galaxy clusters. The energy injection rate is extremely sensitive to the velocity difference between the ICM and cold clouds, which may help to explain why optical and infra-red luminosity is often larger than expected in systems containing AGNs. We also find that mass recycling is likely to be important for the dynamics of the ICM. This effect will be strongest in the central regions of clusters where there is more than enough cold gas for its evaporation to contribute significantly to the density of the hot phase.Comment: 8 pages, 2 figures, accepted for publication in MNRA

Early respiratory viral infections in infants with cystic fibrosis

This article is made available for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.Background Viral infections contribute to morbidity in cystic fibrosis (CF), but the impact of respiratory viruses on the development of airway disease is poorly understood. Methods Infants with CF identified by newborn screening were enrolled prior to 4 months of age to participate in a prospective observational study at 4 centers. Clinical data were collected at clinic visits and weekly phone calls. Multiplex PCR assays were performed on nasopharyngeal swabs to detect respiratory viruses during routine visits and when symptomatic. Participants underwent bronchoscopy with bronchoalveolar lavage (BAL) and a subset underwent pulmonary function testing. We present findings through 8.5 months of life. Results Seventy infants were enrolled, mean age 3.1 ± 0.8 months. Rhinovirus was the most prevalent virus (66%), followed by parainfluenza (19%), and coronavirus (16%). Participants had a median of 1.5 viral positive swabs (range 0–10). Past viral infection was associated with elevated neutrophil concentrations and bacterial isolates in BAL fluid, including recovery of classic CF bacterial pathogens. When antibiotics were prescribed for respiratory-related indications, viruses were identified in 52% of those instances. Conclusions Early viral infections were associated with greater neutrophilic inflammation and bacterial pathogens. Early viral infections appear to contribute to initiation of lower airway inflammation in infants with CF. Antibiotics were commonly prescribed in the setting of a viral infection. Future investigations examining longitudinal relationships between viral infections, airway microbiome, and antibiotic use will allow us to elucidate the interplay between these factors in young children with CF