[Review of] Milton J. Esman (Ed.), Ethnic Conflict in the Western World

Ethnic conflict has reemerged in the economic and political arenas of the western world, less between nation states, more within the boundaries of particular nations. The type of conflict that emerged in the United States during the 1950\u27s and 1960\u27s was racial, in sharp contrast to the ethnonationalist conflict in western Europe and Canada. The latter has a long history and has been shaped by cultural, linguistic, and religious differences. This conflict declined after World War II but is now back on the scene. The explanation of its return is one of the major purposes of this book. A second purpose is to raise the question of whether the Democratic Conflict Management model of consociationalism is a useful tool by which ethnic conflicts can be solved in a manner fair to all

[Review of] Hubert M. Blalock, Jr., Race and Ethnic Relations

In the field of race relations, particularly in the United States, many scholars have turned their attention to the area of government policy and its implication for American racial relations.1 Race and Ethnic Relations by Blalock is concerned with this issue, but not exclusively. He makes the point that racial and ethnic conflict is not simply an American problem but indeed exists as a problem for most societies and emphasizes the desirability of comparative analysis whenever possible. Blalock also wants to rescue us from the naive assumption that it is possible to view race and ethnic relations in isolation

The Economy and Loss Given Default: Evidence from Two UK Retail Lending Datasets

Loss given default (LGD) models predict losses as a proportion of the outstanding loan, in the event a debtor goes into default. The literature on corporate sector LGD models suggests LGD is correlated to the economy and so changes in the economy could translate into different predictions of losses. In this work, the role of macroeconomic variables in loan-level retail LGD models is examined by testing the inclusion of macroeconomic variables in two different retail LGD models: a two-stage model for a residential mortgage loans data set and an ordinary least squares model for an unsecured personal loans data set. To improve loan-level predictions of LGD, indicators relating to the macroeconomy are considered with mixed results: the selected macroeconomic variable seemed able to improve the predictive performance of mortgage loan LGD estimates, but not for personal loan LGD. For mortgage loan LGD, interest rate was most beneficial but only predicted better during downturn periods, underestimating LGD during non-downturn periods. For personal loan LGD, only net lending growth is statistically significant but including this variable did not bring any improvement to R2

Intraspecific variation in thermal acclimation and tolerance between populations of the winter ant, Prenolepis imparis.

Thermal phenotypic plasticity, otherwise known as acclimation, plays an essential role in how organisms respond to short-term temperature changes. Plasticity buffers the impact of harmful temperature changes; therefore, understanding variation in plasticity in natural populations is crucial for understanding how species will respond to the changing climate. However, very few studies have examined patterns of phenotypic plasticity among populations, especially among ant populations. Considering that this intraspecies variation can provide insight into adaptive variation in populations, the goal of this study was to quantify the short-term acclimation ability and thermal tolerance of several populations of the winter ant, Prenolepis imparis. We tested for correlations between thermal plasticity and thermal tolerance, elevation, and body size. We characterized the thermal environment both above and below ground for several populations distributed across different elevations within California, USA. In addition, we measured the short-term acclimation ability and thermal tolerance of those populations. To measure thermal tolerance, we used chill-coma recovery time (CCRT) and knockdown time as indicators of cold and heat tolerance, respectively. Short-term phenotypic plasticity was assessed by calculating acclimation capacity using CCRT and knockdown time after exposure to both high and low temperatures. We found that several populations displayed different chill-coma recovery times and a few displayed different heat knockdown times, and that the acclimation capacities of cold and heat tolerance differed among most populations. The high-elevation populations displayed increased tolerance to the cold (faster CCRT) and greater plasticity. For high-temperature tolerance, we found heat tolerance was not associated with altitude; instead, greater tolerance to the heat was correlated with increased plasticity at higher temperatures. These current findings provide insight into thermal adaptation and factors that contribute to phenotypic diversity by revealing physiological variance among populations

A novel ZePoC encoder for sinusoidal signals with a predictable accuracy for an AC power standard

In this paper we present an analytical formulation of a Zero Position Coding (ZePoC) encoder for an AC power standard based on class-D topologies. For controlling a class-D power stage a binary signal with special spectral characteristics will be generated by this ZePoC encoder for sinusoidal signals. These spectral characteristics have a predictable accuracy within a separated baseband to keep the noise floor below a specified level. Simulation results will validate the accuracy of this novel ZePoC encoder. For a real-time implementation of the encoder on a DSP/FPGA hardware architecture a trade-off between accuracy and speed of the ZePoC algorithm has to be made. Therefore the numerical effects of different floating point formats will be analyzed. © 2015 Author(s)

A Dyadic Analysis of Emotion Regulation as a Moderator of Associations Between Marital Conflict and Marital Satisfaction Among First-married and Remarried Couples

We examined emotion regulation strategies as moderators of marital conflict and marital satisfaction between first-married and remarried couples. Remarried couples with a stepchild (n = 108) and first marriage couples (n = 111) with a child completed online surveys. Perceptions of both spouses were analyzed using actor–partner interdependence modeling. Although remarried spouses reported more marital conflict and lower marital satisfaction than first marriage spouses, emotion regulation strategies did not moderate the association between marital conflict and marital satisfaction differently for first-married and remarried couples. Expressive suppression exacerbated the negative association between marital conflict and marital satisfaction for men, and cognitive reappraisal attenuated the negative association for women. There was one partner effect; husbands’ greater cognitive reappraisal buffered the negative association between husbands’ marital conflict and wives’ marital satisfaction. Marriage order was less important than gender in how emotion regulation moderated the associations among marital conflict and marital satisfaction

BIMA and Keck Imaging of the Radio Ring PKS 1830-211

We discuss BIMA (Berkeley Illinois Maryland Association) data and present new high quality optical and near-IR Keck images of the bright radio ring PKS 1830-211. Applying a powerful new deconvolution algorithm we have been able to identify both images of the radio source. In addition we recover an extended source in the optical, consistent with the expected location of the lensing galaxy. The source counterparts are very red, I-K=7, suggesting strong Galactic absorption with additional absorption by the lensing galaxy at z=0.885, and consistent with the detection of high redshift molecules in the lens.Comment: To be published in the ASP Conference Proceedings, 'Highly Redshifted Radio Lines', Greenbank, W

Improving Water Quality Through BMPs For Crop Production Systems Whole Farm Soil and Water Management

The major objective of this demonstration project was to assess the usefulness of Global Positioning Systems/Geographic Information Systems (GPS/GIS), water testing, soil testing and yield monitoring in a whole farm water and soil management plan. An important part of this objective was to make recommendations to increase crop productivity and decrease the potential for surface water degradation through erosion and runoff at the farm. The farm was located on 2400 acres in the Bayou de View watershed in Monroe County, Arkansas. The farm lies approximately five miles southwest of the town of Brinkley straddling Highway 17 just south of its intersection with County Road 302 and with U. S. Highway 70. Slightly over 2200 acres were under cultivation and this was generally in a 1 :2 ratio of rice to soybeans, with approximately half of the soybean fields double-cropped with winter wheat each year

RNA modifications modulate gene expression during development.

RNA modifications have recently emerged as critical posttranscriptional regulators of gene expression programs. They affect diverse eukaryotic biological processes, and the correct deposition of many of these modifications is required for normal development. Messenger RNA (mRNA) modifications regulate various aspects of mRNA metabolism. For example, N 6-methyladenosine (m6A) affects the translation and stability of the modified transcripts, thus providing a mechanism to coordinate the regulation of groups of transcripts during cell state maintenance and transition. Similarly, some modifications in transfer RNAs are essential for RNA structure and function. Others are deposited in response to external cues and adapt global protein synthesis and gene-specific translational accordingly and thereby facilitate proper development.B.T.H is supported by National Cancer Institute fellowship F32 CA221007. C.H. is supported by National Institute of Health (HG008935 and GM071440). C.H. is an investigator of the Howard Hughes Medical Institute. M.F. is supported by a Cancer Research UK Senior Fellowship (C10701/A15181), the European Research Council (ERC; 310360), and the Medical Research Council UK (MR/M01939X/1). Part of this work was carried out in the framework of the European COST action EPITRAN 16120