Black mothering,paid work and identity

Recent figures suggest that in Britain today, 77.3% of black women are engaged in full-time paid work, a figure which has remained fairly consistent since the introduction of statistical data assessing the work activity of African-Caribbean women from post-war years (CRE 1997). The study addresses the extent to which black women's high work rate derives from a combination of historical cultural and structural economic factors. Historical and cultural, because the experiences of slavery, colonialism and economic migration have had a direct impact on black women's relationship to full-time paid work today in contemporary Britain. In addition, structural economic factors such as high rates of unemployment for black men and lower rates of pay for black men and women compared to their white male and female counterparts, actively encourage a high proportion of black women towards full-time paid work in order to make up for this economic shortfall. A primary consequence of these inter-locking factors is that full-time paid work becomes central to black women's mothering and black mothers' work status is part of their everyday family experience.     

"Interesting Psychology"

Over the past few years, a considerable number of schoolteachers, methodologists, teachers in teachers' colleges and institutions, and managerial personnel at various levels have become interested in the system of developmental teaching that originated with D.B. El'konin. Many of them are trying to use the materials of this system in their practical work. Centers retraining specialists desiring to work in this system are already operating in a number of cities (Moscow, Kharkov, Tomsk, Kemerovo, Samara, Riga, etc.). Efforts are being made to initiate full-time and correspondence-course training of students who will then be able to work as teachers in this system of developmental teaching.     

The origin of a ‘true’ worker caste in termites: phylogenetic evidence is not decisive

The phylogenetic study of the origin of a ‘true’ worker caste in termites by Thompson et al. [J. Evol. Biol. 13 (2000) 869] did not take into account all possibilities of character coding and character optimization on the phylogenetic tree. Actually, contrary to the authors' statements, the phylogenetic evidence presented does not permit to answer decisively most of the questions asked concerning the origin and evolution of worker castes in termites. Particular attention was paid to assumptions implied by the coding of the characters of interest, namely concerning the homology between pseudergates and a ‘true’ worker caste and the kind of the cockroach life type.     

Modeling and Optimization of a Coal‐Chemical Eco‐industrial System in China

China is coal dependent, and this situation will persist for a long time. Because more and more attention has been paid to energy security, the coal‐chemical industry has become a hot topic and has developed quickly. To improve efficiency and reduce emissions, industrial symbiosis (IS) can be introduced when establishing a coal‐chemical eco‐industrial system to achieve harmonious development between nature, industry, and society. In order to learn the influence of IS on the current industrial system, a model of coal‐chemical eco‐industrial systems was built. Using scenario optimization and linear programming, the behaviors and optimal industrial structures of the system under different scenario settings were compared, and industrial ecological analysis was performed. By comparative analysis, results showed that the greatest proportional decrease in the use of coal for coking was 15% compared with actual data for 2005. The resource‐productivity and eco‐productivity were 828 yuan/ton and 2.51, which are much higher than the values of 548 yuan/ton and 1.23 in 2005. The symbiosis index and the link density were found to be 0.675 and 1.67, compared with 0.588 and 0.94 in 2005. Research results showed that the coal‐chemical eco‐industrial system achieved a high value‐added utilization of coal and an updated product profile. Such systems will constitute the main direction and the inevitable trend of China's coal utilization in the future, which will reduce the harm to the environment from increased coal use and benefit the energy industry, the economy, and society.     

Peak cement‐related CO2 emissions and the changes in drivers in China

In order to fight against the climate change, China has set a series of emission reduction policies for super‐emitting sectors. The cement industry is the major source of process‐related emissions, and more attention should be paid to this industry. This study calculates the process‐related, direct fossil fuel–related, and indirect electricity‐related emissions from China's cement industry. The study finds that China's cement‐related emissions peaked in 2014. The emissions are, for the first time, divided into seven parts based on the cement used in different new building types. The provincial emission analysis finds that developed provinces outsourced their cement capacities to less developed regions. This study then employs index decomposition analysis to explore the drivers of changes in China's cement‐related emissions. The results show that economic growth was the primary driver of emission growth, while emission intensity and efficiency were two offsetting factors. The changes in the construction industry's structure and improvement in efficiency were the two major drivers that contributed to the decreased emissions since 2014.     

Interference of low‐molecular substances with the thioflavin‐T fluorescence assay of amyloid fibrils

Abnormal fibrillization of amyloidogenic peptides/proteins has been linked to various neurodegenerative diseases such as Alzheimer's and Parkinson's disease as well as with type‐II diabetes mellitus. The kinetics of protein fibrillization is commonly studied by using a fluorescent dye Thioflavin T (ThT) that binds to protein fibrils and exerts increased fluorescence intensity in bound state. Recently, it has been demonstrated that several low‐molecular weight compounds like Basic Blue 41, Basic Blue 12, Azure C, and Tannic acid interfere with the fluorescence of ThT bound to Alzheimers' amyloid‐β fibrils and cause false positive results during the screening of fibrillization inhibitors. In the current study, we demonstrated that the same selected substances also decrease the fluorescence signal of ThT bound to insulin fibrils already at submicromolar or micromolar concentrations. Kinetic experiments show that unlike to true inhibitors, these compounds did neither decrease the fibrillization rate nor increase the lag‐period. Absence of soluble insulin in the end of the experiment confirmed that these compounds do not disaggregate the insulin fibrils and, thus, are not fibrillization inhibitors at concentrations studied. Our results show that interference with ThT test is a general phenomenon and more attention has to be paid to interpretation of kinetic results of protein fibrillization obtained by using fluorescent dyes. Copyright © 2011 European Peptide Society and John Wiley & Sons, Ltd.     

Returning to Paid Employment after Stroke: The Psychosocial Outcomes In StrokE (POISE) Cohort Study

Objectives

To determine which early modifiable factors are associated with younger stroke survivors'' ability to return to paid work in a cohort study with 12-months of follow-up conducted in 20 stroke units in the Stroke Services NSW clinical network.

Participants

Were aged >17 and <65 years, recent (within 28 days) stroke, able to speak English sufficiently to respond to study questions, and able to provide written informed consent. Participants with language or cognitive impairment were eligible to participate if their proxy provided consent and completed assessments on the participants'' behalf. The main outcome measure was return to paid work during the 12 months following stroke.

Results

Of 441 consented participants (average age 52 years, 68% male, 83% with ischemic stroke), 218 were in paid full-time and 53 in paid part-time work immediately before their stroke, of whom 202 (75%) returned to paid part- or full-time work within 12 months. Being male, female without a prior activity restricting illness, younger, independent in activities of daily living (ADL) at 28 days after stroke, and having private health insurance was associated with return to paid work, following adjustment for other illnesses and a history of depression before stroke (C statistic 0·81). Work stress and post stroke depression showed no such independent association.

Conclusions

Given that independence in ADL is the strongest predictor of return to paid work within 12 months of stroke, these data reinforce the importance of reducing stroke-related disability and increasing independence for younger stroke survivors.

Trial Registration

Australian New Zealand Clinical Trials Registry ANZCTRN 12608000459325     

Mobility,white bodies and desire: Euro‐American women in Jakarta

This paper illustrates how cultural logics of desire are being transformed in the context of the global economy refashioning intimate lives. Exploring the experiences of Euro‐American female professionals in Jakarta, it suggests that they become uncomfortably visible as ‘white bodies’; their desirability appears compromised, especially given Orientalist discourses which valorise Asian women's bodies. At the same time, women's position as well‐paid employees generates a contradictory logic of desire: the ‘ego‐boost’ they experience at work may intensify their demands on the masculinity and enlightened views of potential partners, thus rendering Indonesian men, with their perceived bodily effeminacy and ‘traditional values’ unattractive. As one response to the lack of desirability, some women engage in a moral discourse that casts Indonesian women whom they consider ‘bargirls’, as well as the Euro‐American men they attract, as morally deficient. The paper thus provides an alternative perspective on reconfigurations of desire in the context of global gendered mobility.     

Artificial Feeding Systems for Plant-Parasitic Nematodes

Feeding of an "obligate" plant-parasitic nematode (nonfungal feeder), Pratylenchus scribneri, in the absence of plant tissue was demonstrated in an artificial system consisting of liquid media and indicator dyes including amaranth and various nontoxic food colors. Among the compounds tested, sucrose, dextrose, Gamborg''s B5 medium, and DL-methionine stimulated a small percentage of feeding (12-36%). A high percentage of feeding (90-100%) occurred in a filtrate from excised corn roots cultured in Gamborg''s B5 medium. This feeding system has the potential to develop an artificial medium for plant-parasitic nematodes and to screen novel nematicides that are stomach poisons.     

A Database to Facilitate a Process‐Oriented Approach to Urban Metabolism

In view of urbanization trends coupled with climate‐change challenges, it is increasingly important to establish less‐harmful means of urban living. To date, urban metabolism (UM) studies have quantified the aggregate material and energy flows into and out of cities and, further, have identified how consumer activity causes these flows. However, little attention has been paid to the networks of conversion processes that link consumer end‐use demands to aggregate metabolic flows. Here, we conduct a systematic literature search to assemble a database of 202 urban energy, water, and waste management processes. We show how the database can help planners and policy makers choose the preferred process to meet a specific resource management need; identify synergies between energy, water, and waste management processes; and compute optimal networks of processes to meet an area's consumer demand at minimum environmental cost. We make our database publicly available under an open‐source license and discuss the possibilities for how it might be used alongside other industrial ecology data sets to enhance research opportunities. This will encourage more holistic UM analyses, which appreciate how both consumer activity and the engineered urban system work together to influence aggregate metabolic flows and thus support efforts to make cities more sustainable.     

Challenges and opportunities of publishing supplements at <Emphasis Type="Italic">Arthritis Research &; Therapy</Emphasis>

Supplements are the cause of much debate in the world of journal publishing. Supplements are criticized for the fact that often they are funded by an external source, and journals have been known to shy away from their publication [1]. But is refusing to publish supplements the only answer? At Arthritis Research & Therapy, we feel that - if subjected to the full rigors of peer review - supplements can provide invaluable educational resources, exploring themes in a detailed and focused way that might not always be possible in the main journal.At Arthritis Research & Therapy, we have decided that the potential risk of a loss of objectivity in industry-sponsored supplements can be managed by scrupulous attention to the peer-review process. Therefore, in our experience, the benefit of publishing supplements greatly outweighs any perception of loss of objectivity. We should note that our colleagues in the pharmaceutical industry have embraced our approach with no efforts to circumvent our rules, as far as we know.We consider proceedings, review collections, and meeting abstracts for inclusion as supplements. Examples of recent supplements are easily accessed on the journal website. It will be apparent that the emphasis is on the molecular and cellular basis of immune and inflammatory mechanisms of disease. The underwriting by the sponsor of the cost of peer review and production ensures that the high-quality publication is freely available. Outlined below is the procedure that we follow when considering any potential supplements for the journal. We recognize the potential for competing interests to influence the content of articles where there is industry involvement, but we believe that by adhering to a stringent publication process we negate this risk with our supplement content.So, what is the procedure? First, in a change from the approach taken by many journals, we appoint an ''internal'' Supplement Editor (usually from the journal''s Editorial Board), whose role is to select peer reviewers and assess the suitability of the supplement articles for publication in the journal. This internal editor is selected by the Editors-in-Chief, and the sponsor''s approval is not sought in making this appointment. Before their appointment, internal editors are asked to declare any potential conflicts of interest, and full disclosures are included in both online and print versions of any supplements. In cases in which internal editors receive a stipend, this is paid for by the publisher - not the sponsor. All conflict of interest disclosures associated with supplement publications follow the National Library of Medicine policy for indexing supplement articles in MEDLINE [2].For some supplements, particularly where articles are commissioned externally, there may be an ''external'' Supplement Editor as well as the internal editor. Before their appointment, external supplement editors must be approved by the Editors-in-Chief. Their role is to identify the subject matter and propose suitable authors for the individual supplement articles, with the proviso that all content must be approved by the Editors-in-Chief. The external editor is not involved in the peer review of any of the articles once submitted. They are also asked for full conflict of interest disclosures, which are included in the supplement publication alongside those of the internal editor.One of the common criticisms levied against supplements is that the articles are not peer-reviewed to the journal''s normal standards. At Arthritis Research & Therapy, supplement articles go through the same thorough peer-review process as articles do in the main journal [3]. The Editors-in-Chief have full editorial control, including the ability to ask authors to make extensive revisions, and reserve the right to reject articles that do not meet the journal''s standards. And in accordance with the guidelines of the International Committee for Medical Journal Editors [4], all contracts clearly include information about editorial control and the role of the internal supplement editor.In addition to disclosures from the individual editors, sources of funding for a supplement are prominently displayed on the supplement title page, and funding is also acknowledged in each individual article. We ensure that supplements can be clearly distinguished as separate from the main journal content on the journal homepage. As with all of our articles, individual authors declare their conflicts of interest. This complies with the good publication practice (GPP2) guidelines [5]. We also adhere to the guidelines of the European Medical Writers Association [6] by ensuring that the involvement of any medical writers is disclosed in an article''s acknowledgments section along with their sources of funding.We hope that by ensuring that there is full transparency of disclosures from everyone involved in supplements and following strictly the peer-review procedure described above, we avoid the potential pitfalls of supplement publishing. The guidelines of the International Committee of Medical Journal Editors themselves state that supplements ''serve useful purposes'' and it is our responsibility as editors to ensure that they continue to be useful without allowing ourselves to be subject to industry influence. By publicly disclosing our policy for supplement review here, we hope that other journals will be more open about their peer-review policies for supplements and that they adopt similarly stringent practices in the future.     

Evolution of mechanisms of Ca<Superscript>2+</Superscript>-signaling: Role of calcium ions in signal transduction in prokaryotes

The review considers current concepts of mechanisms of Ca²⁺-signaling in cells of prokaryotes. Problems of structural-functional organization of the Ca²⁺-messenger system, mechanisms of membrane transport, and Ca²⁺ homeostasis are discussed. A special attention is paid to analysis of role of calcium ions and Ca²⁺-receptor proteins in regulation of intracellular processes in bacteria.Translated from Zhurnal Evolyutsionnoi Biokhimii i Fiziologii, Vol. 41, No. 1, 2005, pp. 12–17.Original Russian Text Copyright © 2005 by Shemarova, Nesterov.     

Primordial germ cells and lymphomyeloid system in the embryos of the Aleutian skate,Bathyraja aleutica

Organogenesis in embryos (1 and 5 mm-disk widths) of the Aleutian skate,Bathyraja aleutica was described histologicaily in complete serial paraffin sections. Special attention was paid to localization of primordial germ cells (PGC) and development of lymphoid tissues. The embryo of 1 mm-disk width was at the somite stage with no evidence of organogenesis. PGC, gathered in the genital ridge, were seen in the somatic mesodermal layer as well as in the mesenchyme between the endoderm and splanchnic mesoderm of the 1 mm-embryo. Most of the visceral organs were developing in the embryo of 5 mm-disk width. With respect to the development of immune system, two pairs of thymus anlagen, filled with numerous thymic lymphocytes, were recognized in the pharyngeal region. A small focus of numerous immature blood cells appeared to be an anlage of the spleen was found between the stomach and the liver.     

Histopathology of Okra and Ridgeseed Spurge Infected with Meloidodera charis

Histological observations of okra Abelomoschus esculentus ''Clemson Spineless'' and ridgeseed spurge Euphorbia glyptosperma (a common weed) infected with Meloidodera charis Hopper, indicated that the juvenile nematode penetrated the roots intercellularly. Within 5 days after plant emergence the nematode positioned its body in the cortical tissue parallel to the vascular system. By 10 days after plant emergence the juvenile had extended its head into the vascular system and initiated giant cell formation, generally in protophloem tissue. Giant cells were one celled and usually multi-nucleate. Eggs were observed in the female body 30 days after plants emerged and juveniles were found within the female body by 40 days. Nematode development progressed equally in the root system of either host plant. Generally, throughout the nematode''s life cycle its entire body remained inside the cortical tissue of okra. In ridgeseed spurge, however, the posterior portion of the female erupted through the host epidermis as early as 15 days after plant emergence; only the head and neck remained embedded in the host. The nematode caused extensive tissue disruption in the cortical and vascular system of both plant species. Corn, Zea mays, was another host of the nematode.     

Study of the Accumulation of Rec A from <Emphasis Type="Italic">Bacillus subtilis</Emphasis> in the Mitochondria of a Recombinant Strain of the Yeast <Emphasis Type="Italic">Yarovia lipolytica</Emphasis>

No eukaryotic species has a system for homologous DNA recombination of the mitochondrial genome. We report on an integrative genetic system based on the pQ-SRUS construct that allows the expression of the RecA recombinase from Bacillus subtilis and its transportation to mitochondria of Yarrowia lipolytica. The targeting of recombinant RecA to mitochondria is provided by leader sequences (5'-UTR and 3'-UTR) derived from the SOD2 gene mRNA, which exhibit affinity to the outer mitochondrial membrane and provides cotranslational import of RecA to the inner space of mitochondria. The accumulation of RecA in mitochondria of the Y. lipolytica recombinant strain bearing the pQ-SRUS construct has been shown by immunoblotting of purified mitochondrial preparations.     

Steering Between Scylla and Charybdis: The Northwest Passage as Territorial Sea

Heightened attention is being paid to the Northwest Passage, the waters that flow among the islands of northern Canada and that, in the next decades, may be amenable to commercial navigation. Most debates regarding the Passage's legal status focus on Canada's contention that it is its internal waters and the United States’ contention that it is an international strait. This article proposes that a designation of the Passage as Canada's territorial sea would be as legally robust as the internal waters or international strait designations while satisfying both Canada's and the United States’ political objectives.     

Fixity and Flux: Bidayuh (Dis)engagements with the Malaysian Ethnic System

This article explores conceptions of the Malaysian ethnic system from the perspective of certain Bidayuhs, an indigenous group of Sarawak, Borneo. Recent scholarship has highlighted the ‘fluid’ and ‘shifting’ nature of Malay identity; but less attention has been paid to how ethnic minorities in the region depict Malayness. I suggest that for many Bidayuhs, Malay-ness is marked by an inescapable flxity which stifies a fluidity that they value as intrinsic to Bidayuh-ness and other aspects of life. Moreover, this sense of flxity has been mapped onto their conceptions of the (Malay-dominated) Malaysian ethnic system, in which they are inescapably entangled. The article investigates some of the consequent tensions arising from Bidayuh (dis)engagements with Malaysia's ethnic ‘flxity’, while tracing certain trends and changes in this relationship.     

如何学好人体断层解剖学

断层解剖学作为解剖学与医学影像学等学科相结合的交叉学科,对现代化的影像技术及临床应用具有非常重要的意义。要学好断层解剖学:必须明确断层解剖学的重要性;培养学习的兴趣,注意临床针对性;抓好学习的重点,注意学习方法;打好局部解剖学知识的基础,始终贯彻断层标本与影像相结合的原则;并高度重视现代化多媒体资料的应用。