bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bridgeman Island, Antarctica, ‘burning mount’ or old eroded volcano?
Authors: Williams Karen Louise 
Published: August 2021

Abstract
Deception, Bridgeman and Penguin are the three most recently active volcanic islands in the South Shetland Islands. Since the discovery of the archipelago in 1819, Deception Island has erupted on frequent occasions, most recently in August 1970. A number of nineteenth-century observers reported fumarolic or volcanic activity from Bridgeman Island. No eyewitness accounts of activity from Penguin Island have been found. A chronological list detailing the historic reports from Bridgeman Island was compiled to compare and establish their veracity. This process revealed a consistency of observation from independent observers. An effort has been made to consider if any of these reports of activity may have belonged instead to Penguin Island volcano, 60 km (32 NM) away. A review of the timing of discovery and availability of the first charts of the South Shetlands was also examined to narrow the period when mariners might have mistaken one island for another. Only the three earliest observations of activity from an unnamed volcano, during the short period when no maps were available, may be questioned. A useful chart of the region was published in 1822, and all subsequent observations of activity were from Bridgeman, not Penguin Island.
Treating depression with a smartphone-delivered self-help cognitive behavioral therapy for insomnia: a parallel-group randomized controlled trial
Authors: Chan Christian S. , Wong Christy Y. F. , Yu Branda Y. M. , Hui Victoria K. Y. , Ho Fiona Y. Y. , Cuijpers Pim 
Published: August 2021

AbstractBackgroundDespite its efficacy in treating comorbid insomnia and depression, cognitive behavioral therapy for insomnia (CBT-I) is limited in its accessibility and, in many countries, cultural compatibility. Smartphone-based treatment is a low-cost, convenient alternative modality. This study evaluated a self-help smartphone-based CBT-I in alleviating major depression and insomnia.MethodsA parallel-group randomized, waitlist-controlled trial was conducted with 320 adults with major depression and insomnia. Participants were randomized to receive either a 6-week CBT-I via a smartphone application,proACT-S, or waitlist condition. The primary outcomes included depression severity, insomnia severity, and sleep quality. The secondary outcomes included anxiety severity, subjective health, and acceptability of treatment. Assessments were administered at baseline, post-intervention (week 6) follow-up, and week 12 follow-up. The waitlist group received treatment after the week 6 follow-up.ResultsIntention to treat analysis was conducted with multilevel modeling. In all but one model, the interaction between treatment condition and time at week 6 follow-up was significant. Compared with the waitlist group, the treatment group had lower levels of depression [Center for Epidemiologic Studies Depression Scale (CES-D): Cohen'sd= 0.86, 95% CI (−10.11 to −5.37)], insomnia [Insomnia Severity Index (ISI): Cohen'sd= 1.00, 95% CI (−5.93 to −3.53)], and anxiety [Hospital Anxiety and Depression Scale – Anxiety subscale (HADS-A): Cohen'sd= 0.83, 95% CI (−3.75 to −1.96)]. They also had better sleep quality [Pittsburgh Sleep Quality Index (PSQI): Cohen'sd= 0.91, 95% CI (−3.34 to −1.83)]. No differences across any measures were found at week 12, after the waitlist control group received the treatment.ConclusionproACT-Sis an efficacious sleep-focused self-help treatment for major depression and insomnia.Trial registrationClinicalTrials.gov, NCT04228146. Retrospectively registered on 14 January 2020.https://clinicaltrials.gov/ct2/show/NCT04228146
South Africa in 1998: Trends and Developments During the Next Twenty-Five Years
Authors: Keppel-Jones A. M. 
Published: August 2021

Prophecy is one of the simplest ways for an historian to destroy his credit and reputation. Having been persuaded to take this risk, I shall partly cover it with one small insurance policy: I shall set forth what seem to me to be the relevant facts, but not be too dogmatic about the conclusions to be drawn from them.Where will South Africa stand twenty-five years from now? What will have happened during those years? In theory there are, I think, only four possibilities: (i) that the status quo will remain essentially unchanged; (ii) that radical changes, involving or at least leading to the abolition of all racial discrimination, will come about peacefully, by constitutional means; (iii) that the regime will be overthrown by invading foreign forces; and (iv) that it will be overthrown by revolution within the country, with or without foreign support. As there are strong reasons for believing that none of these alternatives is really possible, some factor seems to have been overlooked. Perhaps it will appear as the four alternatives are examined.
Safaris in the Bush of Ghosts: Gamara Laye, Saul Bellow, and Ayi Kwei Armah
Authors: Johnson Lemuel A. 
Published: August 2021

The land of Zanj is vast, wrote Suleiman the Merchant. Its plants are all black in colour.When he gets to heaven, I don't think he'll walk through the pearly gates. He'll swing in on a grape vine. – Pat Buttram, actor, upon the death of Johnny Weismuller, January 1984.I did not know the time that I entered into a dreadful bush which is called the “Bush of Ghosts” because I was very young to understand the meaning of “bad” or “good”. This “Bush of Ghosts” was so dreadful so that no superior earthly person ever entered it. – Amos Tutuola, My Life in the Bush of Ghosts.
“Cent Moutons Font Un Loup”
Authors: Rodegem F. 
Published: August 2021

One of the most perplexing features of the welter of events that led to the slaughter of 1972 has to do with the emergence, or the resurgence, of intra-Tutsi rivalries. These were particularly noticeable in the months immediately preceding the holocaust and involved among other things a struggle for power between the so-called Tutsi-Hima and the Tutsi-Banyaruguru. The following passage is excerpted from Father Rodegem’s article “Burundi: La Face Cachée de la Rébellion” (Intermédiaire, 15 June 1973) in which the author emphasizes the historical dimensions of the Hima-Banyaruguru conflict. One may or may not agree with the facts and interpretations presented by the author; however, the article suggests at least one possible explanation for the scale of the massacre: by systematically killing all educated Hutu elements, the Hima elites also destroyed the basis for a potential alliance between Hutu intellectuals and Tutsi-Banyaruguru.Father Rodegem spent many years in Burundi and is intimately acquainted with the traditional aspects of Rundi culture. He is the author of Sagesse Kirundi (Tervueren: 1961) and “Ainsi Parlait Samandari: Analyse ethnolinguistique d’un phénomène de déviance dans une société à caractère empirique” (Anthropos, Vol. 69, 1974). The latter is a pioneering effort to penetrate the political culture of Burundi through techniques of analysis borrowed from ethnolinguistics.
Angola
Authors: Wheeler Douglas L. 
Published: August 2021

I would like to thank the Subcommittee for inviting me to testify before it on the subject of Angola.In this presentation I shall make six major points. Briefly, and in summary, they are the following: one, the historical record in Angola, both remote and recent, suggests that there are deep roots to the current political fragmentation and conflict in that country and that, even under good conditions, political unity and stable government will be difficult to establish. Two, the Alvor Agreement, signed on January 15, 1975, between Portugal and the three major Angolan nationalist parties is, on paper, a masterful piece of diplomacy and compromise; its provisions should be studied and enforced.
Testimony on South Africa and U.S. Foreign Policy
Authors: Butcher Goler T. 
Published: August 2021

Mr. Chairman, I wish to express appreciation for the invitation to appear before the Committee. It is Congress that must take the lead to end what is essentially a “cover-up” of U.S. policy on southern Africa. The Congress must insist on(1)a frank statement of the facts on the situation in South Africa,(2)an open analysis of U.S. interests in that area,(3)progress towards a therapeutic confrontation, discussion, debate, and analysis of what U.S. policy should be,(4)change with a view towards developing an honest, sensible and rational U.S. policy—consistent with U.S. interests—towards South Africa.
Update South Africa; Cooptation Versus Confrontation
Authors: Carter Gwendolen M. 
Published: August 2021

May 1983 saw two diametrically opposed efforts to change some fundamental features of contemporary South Africa. On May 3, Prime Minister Botha’s new Constitutional Bill was introduced in the House of Assembly providing for the first time for the inclusion of Coloured and Indians in the previously all white national legislature. Minor as the role of these two minorities will be should the new structure be adopted, the provisions signaled two white objectives: to split the black front, such as it is, and to underline the permanent exclusion of the majority Africans from any share in making national decisions.On May 20, what might be considered the response to that formal exclusion came with the use for the first time by the seventy-year-old African National Congress of a new and deadly tactic when it exploded a car bomb outside airforce headquarters in Pretoria, killing eighteen people.
Common infectious morbidity and white blood cell count in middle childhood predict behavior problems in adolescence
Authors: Beer Rachael J. , Dent Kallisse R. , Robinson Sonia L. , Oliveros Henry , Mora-Plazas Mercedes , Marin Constanza , Villamor Eduardo 
Published: August 2021

AbstractWe examined the associations of middle childhood infectious morbidity and inflammatory biomarkers with adolescent internalizing and externalizing behavior problems. We recruited 1018 Colombian schoolchildren aged 5–12 years into a cohort. We quantified white blood cell (WBC) counts and C-reactive protein at enrollment and prospectively recorded incidence of gastrointestinal, respiratory, and fever-associated morbidity during the first follow-up year. After a median 6 years, we assessed adolescent internalizing and externalizing behavior problems using child behavior checklist (CBCL) and youth self-report (YSR) questionnaires. Behavior problem scores were compared over biomarker and morbidity categories using mean differences and 95% confidence intervals (CI) from multivariable linear regression. Compared with children without symptoms, CBCL internalizing problem scores were an adjusted 2.5 (95% CI: 0.1, 4.9; p = .04) and 3.1 (95% CI: 1.1, 5.2; p = .003) units higher among children with moderate diarrhea with vomiting and high cough with fever rates, respectively. High cough with fever and high fever rates were associated with increased CBCL somatic complaints and anxious/depressed scores, respectively. WBC >10,000/mm3 was associated with both internalizing problem and YSR withdrawn/depressed scores. There were no associations with externalizing behavior problems. Whether or not decreasing the burden of common infections results in improved neurobehavioral outcomes warrants further investigation.
AN ANALYTICAL OPTION PRICING FORMULA FOR MEAN-REVERTING ASSET WITH TIME-DEPENDENT PARAMETER
Authors: NONSOONG P. , MEKCHAY K. , RUJIVAN S. 
Published: August 2021

AbstractWe present an analytical option pricing formula for the European options, in which the price dynamics of a risky asset follows a mean-reverting process with a time-dependent parameter. The process can be adapted to describe a seasonal variation in price such as in agricultural commodity markets. An analytical solution is derived based on the solution of a partial differential equation, which shows that a European option price can be decomposed into two terms: the payoff of the option at the initial time and the time-integral over the lifetime of the option driven by a time-dependent parameter. Finally, results obtained from the formula have been compared with Monte Carlo simulations and a Black–Scholes-type formula under various kinds of long-run mean functions, and some examples of option price behaviours have been provided.
Determination of electromagnetic source localization with factorization method
Authors: Karakiraz Nuri Gokmen , Ertay Agah Oktay , Göse Ersin 
Published: August 2021

AbstractThe factorization method (FM) is an attractive qualitative inverse scattering technique for the detection of geometrical features of unknown objects. This method depends on the selection of regularization parameters slightingly and has low calculation necessities. The aim of this work is to present a near-field FM for inverse source problems that have many applications. A modified test equation is obtained by converting the far-field term to Hankel's function. A different method has been proposed by manipulating the asymptotic approximation of Hankel's function in order to obtain near-field equations with incident angle and distance parameters. The novelty of this study is an integral equation based on the FM, which consists of multifrequency sparse near-field electric field measurements. We proved that the solution of the proposed integral equation gives information about the location of scatterers. The proposed algorithm is validated with simulation results and the capabilities of the presented method are assessed with several frequency regions and sources. Additionally, the presented method is compared with the direct sampling method in order to understand the performance of the proposed approach over a given scenario. The developed FM provides accurate results for electromagnetic source problems.
Magnetic Signatures of Ionospheric Disturbance Dynamo for CME and HSSWs Generated Storms
Authors: Younas Waqar , Amory‐Mazaudier C. , Khan Majid , Le Huy M. 
Published: August 2021

AbstractIonospheric disturbance dynamo is one of the main processes that causes perturbations in the upper atmosphere during a magnetic storm. We present a new method, based on the least square fitting, for estimation of the magnetic signatures associated with ionospheric disturbance currents. Using a wavelet semblance analysis, the durations of disturbance dynamo electric fields have been investigated at three longitudinal sectors. For that we have analyzed the disturbance dynamo (Ddyn) for 19 magnetic storms. It has been found that during CME generated storms magnetic signature of Ddyn may be observed—depending on strength of the storm as well as on the duration of interplanetary magnetic field (IMF) Bz southward—in one, two or all three longitudes. The Oscillatory behavior of IMF Bz during the high‐speed solar wind streams (HSSWs) generates Ddyn globally and the corresponding effects are observed at all low latitude magnetic observatories. In this regard, the Joule heating estimation shows that CME and HSSWs generated storms have very different patterns. The Ddyn duration is found to be maximum for the storms occurring during equinox season. Moreover, the HSSWs events are more likely to cause—because of the oscillatory IMF Bz—long lasting Ddyn as compared to CME generated counterpart. This study presents a detailed analysis of disturbance dynamo as affected by longitudinal and seasonal variations. In this regard the difference in magnetic signatures, of CME and HSSWs originated storms, have been highlighted.
Deletion of Glut1 in early postnatal cartilage reprograms chondrocytes toward enhanced glutamine oxidation
Authors: Wang Cuicui , Ying Jun , Niu Xiangfeng , Li Xiaofei , Patti Gary J. , Shen Jie , O’Keefe Regis J. 
Published: August 2021

AbstractGlucose metabolism is fundamental for the functions of all tissues, including cartilage. Despite the emerging evidence related to glucose metabolism in the regulation of prenatal cartilage development, little is known about the role of glucose metabolism and its biochemical basis in postnatal cartilage growth and homeostasis. We show here that genetic deletion of the glucose transporter Glut1 in postnatal cartilage impairs cell proliferation and matrix production in growth plate (GPs) but paradoxically increases cartilage remnants in the metaphysis, resulting in shortening of long bones. On the other hand, articular cartilage (AC) with Glut1 deficiency presents diminished cellularity and loss of proteoglycans, which ultimately progress to cartilage fibrosis. Moreover, predisposition to Glut1 deficiency severely exacerbates injury-induced osteoarthritis. Regardless of the disparities in glucose metabolism between GP and AC chondrocytes under normal conditions, both types of chondrocytes demonstrate metabolic plasticity to enhance glutamine utilization and oxidation in the absence of glucose availability. However, uncontrolled glutamine flux causes collagen overmodification, thus affecting extracellular matrix remodeling in both cartilage compartments. These results uncover the pivotal and distinct roles of Glut1-mediated glucose metabolism in two of the postnatal cartilage compartments and link some cartilage abnormalities to altered glucose/glutamine metabolism.
Highlights from ASCO-GI 2021 from EORTC Gastrointestinal tract cancer group
Authors: Koessler Thibaud , Alsina Maria , Arnold Dirk , Ben-Aharon Irit , Lutz Manfred P. , Obermannova Radka , Peeters Mark , Sclafani Francesco , Smyth Elizabeth , Valle Juan W. , Wagner Anna Dorothea , Wyrwicz Lucjan , Fontana Elisa , Moehler Markus 
Published: August 2021

AbstractLast year the field of immunotherapy was finally introduced to GI oncology, with several changes in clinical practice such as advanced hepatocellular carcinoma or metastatic colorectal MSI-H. At the virtual ASCO-GI symposium 2021, several large trial results have been reported, some leading to a change of practice. Furthermore, during ASCO-GI 2021, results from early phase trials have been presented, some with potential important implications for future treatments. We provide here an overview of these important results and their integration into routine clinical practice.
Genetic diversity and population structure of Alternaria species from tomato and potato in North Carolina and Wisconsin
Authors: Adhikari Tika B. , Muzhinji Norman , Halterman Dennis , Louws Frank J. 
Published: August 2021

AbstractEarly blight (EB) caused by Alternaria linariae or Alternaria solani and leaf blight (LB) caused by A. alternata are economically important diseases of tomato and potato. Little is known about the genetic diversity and population structure of these pathogens in the United States. A total of 214 isolates of A. alternata (n = 61), A. linariae (n = 96), and A. solani (n = 57) were collected from tomato and potato in North Carolina and Wisconsin and grouped into populations based on geographic locations and tomato varieties. We exploited 220 single nucleotide polymorphisms derived from DNA sequences of 10 microsatellite loci to analyse the population genetic structure between species and between populations within species and infer the mode of reproduction. High genetic variation and genotypic diversity were observed in all the populations analysed. The null hypothesis of the clonality test based on the index of association $$\left( {\overline{r}_{d} } \right)$$

r
¯

d

was rejected, and equal frequencies of mating types under random mating were detected in some studied populations of Alternaria spp., suggesting that recombination can play an important role in the evolution of these pathogens. Most genetic differences were found between species, and the results showed three distinct genetic clusters corresponding to the three Alternaria spp. We found no evidence for clustering of geographic location populations or tomato variety populations. Analyses of molecular variance revealed high (> 85%) genetic variation within individuals in a population, confirming a lack of population subdivision within species. Alternaria linariae populations harboured more multilocus genotypes (MLGs) than A. alternata and A. solani populations and shared the same MLG between populations within a species, which was suggestive of gene flow and population expansion. Although both A. linariae and A. solani can cause EB on tomatoes and potatoes, these two species are genetically differentiated. Our results provide new insights into the evolution and structure of Alternaria spp. and can lead to new directions in optimizing management strategies to mitigate the impact of these pathogens on tomato and potato production in North Carolina and Wisconsin.
A case–control study in France showing that a pro-inflammatory diet is associated with a higher risk of breast cancer
Authors: Hajji-Louati Mariem , Cordina-Duverger Emilie , Laouali Nasser , Mancini Francesca-Romana , Guénel Pascal 
Published: August 2021

AbstractDietary regimens promoting inflammatory conditions have been implicated in breast cancer development, but studies on the association between pro-inflammatory diet and breast cancer risk have reported inconsistent results. We investigated the association between the inflammatory potential of diet and breast cancer risk in a case–control study in France including 872 breast cancer cases and 966 population controls. All women completed a food frequency questionnaire that was used to compute a Dietary Inflammatory Index (DII) based on the inflammatory weight of 33 dietary components. The DII ranged from a median of − 3.22 in the lowest quartile (anti-inflammatory) to + 2.96 in the highest quartile (pro-inflammatory). The odds ratio contrasting quartile 4 to quartile 1 was 1.31 (95% CI 1.00, 1.73; p-trend = 0.02). Slightly higher odds ratios were observed in post-menopausal women, particularly those with body mass index > 25 kg/m2 (odds ratio 1.62; 95% CI 0.92, 2.83; p-trend = 0.02), and among ever smokers (odds ratio 1.71; 95% CI 1.11, 2.65; p-trend 0.01). The analyses by breast cancer subtype showed that the DII was associated with breast tumors that expressed either the estrogen (ER) or progesterone (PR) hormone receptors or the Human Epidermal Growth Factor Receptor-2 (HER2), but no association was seen for the triple negative breast tumor subtype. Our results add further evidence that a pro-inflammatory diet is associated with breast cancer risk with possible effect variation according to tumor subtype.