Academic literature on the topic 'Angola (Concentration camp)'

Op 23 Junie 1900 het die Britse troepe Heidelberg beset. Die rustige bestaan het vir spanning onder die burgerlikes en agterdog teenoor die Britse militêre owerheid plek gemaak. Inwoners soos ds. A.J. Louw, wat geweier het om die Eed van Neutraliteit te teken, is onverwyld uit die dorp verban. Vroue soos Issie Kriegler en Cassie O’Reilly, wat met hulle uitgesprokenheid die gramskap van die Britte ontketen het, is saam met hulle gesinne na die konsentrasiekamp by Merebank in Natal gestuur. Aangesien die beëindiging van die oorlog vir die Britse owerheid belangrik was, het distrikskommissaris J.M. Vallentin Heidelbergse wapenneerlêers gebruik om die burgers tot oorgawe te oorreed en voorstelle vir die bereiking van vrede aan die hand te doen. As deel van die verskroeide aarde-beleid is Boerevroue en kinders wat sonder heenkome was, na die blanke konsentrasiekamp op Heidelberg geneem, waar hulle getalle mettertyd tot ongeveer 2 000 aangegroei het. Die Heidelbergse kampowerhede het die aankomelinge van tente voorsien terwyl higiëniese maatreëls en mediese dienste vir liggaamlike welsyn ingestel is. Siektes het uitgebreek. Die pogings van die Britse medici om die sterftesyfer met Westerse medikasie en voorskrifte vir beter voeding aan kinders te verlaag, het allesbehalwe seepglad verloop onder meer vanweë die Boerevroue se wantroue in hulle. Voor die Anglo-Boereoorlog was die gemeentelike lewe besonder aktief. Met die Britse oorname het eredienste, bediening van die doop en katkisasie in die susterskerke op Heidelberg op 'n gereelde grondslag voortgegaan. Godsdiensoefening in die konsentrasiekamp is ook nie agterweë gelaat nie. Fasiliteite is vir die gemeentelike aktiwiteite van die drie susterskerke beskikbaar gestel. Ook het die Britse kerke op Heidelberg, die St. Ninian’s Anglican Church en die Wesleyan Methodist Church, ‘n bloeitydperk beleef, terwyl die Berlynse Sendinggenootskap sy werksaamhede gestaak het. Teen 1902 is die kampinwoners toegelaat om dienste in hulle gemeentes op die dorp by te woon. Onderwys het met die Britse besetting ‘n nuwe tydvak betree. Die kampskool het saam met die skoolgeldheffende skole en die “free schools” op die dorp daartoe bygedra om die grondslag vir ‘n Britse onderwysstelsel in Transvaal te lê. Ingevoerde Britse onderwysers het nuwe wêrelde vir die kampkinders ontsluit, wat hulle tot verdere intellektuele ontwikkeling sou aanspoor. Die kampskole, waarby ook volwassenes gebaat het, was ‘n ligpunt in die bestaan van die konsentrasiekampe. Tot onlangs was min oor die swart konsentrasiekampe in die Heidelbergdistrik bekend. Toestande in hierdie kampe het na hulle oorname deur die Departement van Naturellevlugtelinge in Junie 1901 verbeter. Swartes is deur die leër en privaat huishoudings in diens geneem. Sommige was selfversorgend deurdat hulle mielies en ander gewasse produseer het. Die swart kamp op Heidelberg se sterftesyfer was laag. Dit is waarskynlik aan die goeie werk van die mediese offisier, ene Stewart, te danke. Hervestiging van blanke en swart kampinwoners het na afloop van die oorlog in Mei 1902 gevolg. Met Britse hulp en danksy rantsoene wat aan hulle uitgereik is, kon hulle huiswaarts keer. Dit blyk dat Heidelberg se blanke konsentrasiekamp relatief goed bestuur is en vanweë sy lae sterftesyfer onder die beter kampe tel.<br>Thesis (DPhil (History))--University of Pretoria, 2008.<br>Historical and Heritage Studies<br>unrestricted

The invasion by the Boers of Natal set a process in motion that changed the lives of Natal Afrikaners forever. As a group which shared family, cultural, and other ties with the invaders, but were British subjects by citizenship, they had to make a difficult decision: join the Republican forces or remain loyal to the crown. Factors which influenced this decision, amongst others, were the pre-war suspicion of all Natal Afrikaners by the Natal authorities and the prevalence of a general anti-Republican sentiment. Despite the above-mentioned, and the sympathy which existed for the plight of the Republics, very few Natal Afrikaners joined the commandos. Doing that would have meant economic annihilation. This the Natal Afrikaners understood and the majority remained neutral. Matters were complicated when the British Army and the colonial authorities withdrew south, leaving especially the Afrikaners of the Klip River county unprotected. When occupation did not convince the Afrikaners of the area to join, a well-thought out strategy based upon fear and misinformation, brought most into the fray. Duty on these commandoes was generally slack, subversive in nature, and as much as one can expect from people forced into military combat. A small group, however, managed, despite the pressures placed upon them, to remain loyal to Britain. For these loyalists the greatest rewards were in terms of economics and power. In stark contrasts were the economic experiences of the Natal Afrikaners who were somehow, either directly or indirectly, guilty of high treason. All their possessions were systematically looted or destroyed, leaving most of them in an impoverished state. Secondly, through a range of court cases 409 Natal Afrikaners or associated people were convicted of treason, mostly by the purposefully introduced Special Court and special magistrate. The outlined experiences coincided with victimization on socio-political and cultural levels under Martial Law. Afrikaners resident in the southern part of Natal, and especially in Umvoti county, did not suffer directly because of the war but experienced a different kind of war namely a pseudo war in which they were spied upon, viewed with suspicion and under Martial Law harassed. However, these Afrikaners managed to maintain some political power while economically they carried on as before the war. They attempted to use these assets to assist the Afrikaners who had to endure desertion by their own government and Boer occupation. Natal Afrikaners also experienced other aspects of the war normally associated with the Republics. Some were arrested as POWs, while others were deported to concentration camps within the Colony. Furthermore, as a result of the war, relations between Natal Afrikaners and English colonists and Africans suffered. The collective impact and legacy of the war, as well as the shared experiences of suffering under the British, with their Republican brothers and sisters, eventually helped to bring Natal Afrikaners into the broader Afrikaner fold.<br>Thesis (DPhil)--University of Pretoria, 2007.<br>Historical and Heritage Studies<br>unrestricted

In an effort to reduce mortality rates from epidemic disease, the British government engaged in a campaign to reform the Anglo-Boer War concentration camps. Officials like Alfred Milner and Joseph Chamberlain actively mobilized imperial Britain’s long history of encampment and solicited expertise from the fields of metropolitan welfare and social investigation to appoint a women’s committee (led by Millicent Fawcett) to visit the camps and recommend reforms. Chamberlain also contacted the India Office and ultimately imported Colonels Samuel J. Thomson and James S. Wilkins, who had analogous inter-imperial experience managing plague and famine camps in India. Drawing from lessons synthesized in India, these “imperial careerists” introduced stricter discipline and new measures like barbed-wire quarantine wards and forced hospitalization, which ultimately reduced camp mortality. New camps in Cape Colony and Natal constructed by Wilkins and Thomson refined camp management to a state of perfection and helped vindicate concentration camps as a legitimate technology of imperial statecraft and emergency relief.

This chapter examines inmate life inside the Anglo-Boer War concentration camps. Native African refugees were segregated into a system of labor camps while British officials developed a form of governmentality that sought to educate, anglicize and rehabilitate Boer refugees by inculcating British cultural ideals and industrial habits, thereby transforming them into imperial citizens and willing partners of a British South Africa. The medical techniques of quarantine and segregation were adapted to inmates suspected of political subversion, who were detained in undesirable camps. Ultimately, both African and Boer camps suffered from the spread of epidemic diseases like measles, which resulted in staggering mortality rates in the camps and created a damaging political scandal in Britain. The humanitarian reformer Emily Hobhouse noted that scenes of suffering and death in the concentration camps could only be matched by similar sights during plague and famine in India.

Guerrilla warfare during the South African (or Anglo-Boer) War presented a new context for the development of British camps. On the one hand, camps were a measure of military counterinsurgency that concentrated and detained scattered civilian populations suspected of aiding enemy insurgents. On the other hand, camps were measures of social control and sympathetic concern that organized shelter and humanitarian relief for refugees who had been displaced by scorched earth warfare and were congregating in overcrowded towns. Boer and African refugees presented a specter of social destitution and sanitary disarray familiar from Indian plague and famine operations. Like plague and famine camps, wartime concentration camps removed “uncivilized” and unhygienic populations from the center of towns and systematized ad hoc charitable arrangements by confining relief within demarcated boundaries. Although Boers were ostensibly Europeans respected for their vigor and courage, racialized discourses in the later phases of an asymmetric conflict denigrated them as uncivilized and even subhuman: such representations ultimately facilitated encampment.

The dipyridamole component of Aggrenox and cilostazol, both phosphodiesterase inhibitors, are used predominantly in patients with peripheral vascular and cerebrovascular disease. Aggrenox is a combination platelet antagonist that includes aspirin (25 mg) and dipyridamole (200 mg extended-release preparation). It is typically taken twice daily. Aspirin’s mechanism of action has been discussed previously. Dipyridamole inhibits cyclic adenosine monophosphate (cAMP)-phosphodiesterase (PDE) and cyclic-3´, 5´- guanylate monophospate (GMP)-PDE (Bunag et al., 1964). The pharmacokinetic profile of aspirin has been summarized previously. Peak dipyridamole levels in plasma are achieved within several hours of oral administration (400 mg dose of Aggrenox). Extensive metabolism via conjugation with glucuronic acid occurs in the liver. There are no significant pharmacokinetic interactions between aspirin and dipyridamole coadministered as Aggrenox. Dipyridamole inhibits platelet aggregation by two distinct mechanisms. First, it attenuates adenosine uptake into platelets (as well as endothelial cells and erythrocytes). The resulting increase elicits a rise in cellular adenylate cyclase concentrations, resulting in elevated cAMP levels, which inhibit platelet activation to several agonists, including adenosine diphosphate (ADP), collagen, and platelet-activating factor. Dipyridamole also inhibits PDE. The subsequent increase in cAMP elevates nitric oxide concentration, facilitating platelet inhibitory potential (Eisert, 2001). The European Stroke Prevention Study (ESPS)-2 reported that 79.9% of patients experienced at least one on-treatment adverse event. The most common side effects were gastrointestinal complaints and headache. Dipyridamole has vasodilatory effects and should be used with caution in patients with severe coronary artery disease in whom episodes of angina pectoris may increase. Patients receiving Aggrenox should not be given adenosine for myocardial perfusion studies. Plasma concentrations of dipyridamole are approximately 40% higher in patients greater than 65 years of age compared with younger individuals. Aggrenox has not been studied in patients with acute coronary syndrome (ACS). The ESPS-2 included 6,602 patients with ischemic stroke (76% of the total population) or transient ischemic attack who were randomized to receive Aggrenox, dipyridamole alone, aspirin alone, or placebo. Aggrenox reduced the risk of stroke by 22.1% compared with aspirin and by 24.4% compared with dipyridamole. Both differences were statistically significant (p = .008 and p = .002, respectively) (Diener et al., 1996).

Electrochemical micro drilling (ECMD) is one of the sub-divisions of the electrochemical micro machining (ECMM) process. In the present work, a comparative study of ECMD with bare tool, insulated tool, and insulated tool with masked workpiece has been presented. Drilling of micro holes is done using copper wires of 500 μm tip diameter. These copper wires coated with varnish are easily available in the market. In ECMD, taper and undercut are produced in the hole. The effects of input parameters such as voltage, duty cycle, electrolyte concentration, feed rate and inter-electrode gap on the output parameters namely, taper angle and undercut have been studied. Empirical models have been developed. In the present paper, a new idea of insulated tool and masked workpiece has been presented. The present idea came out as the most effective method of minimizing both the taper angle as well as undercut. Photographic analysis of micro drilled hole in the workpiece has been carried out using Dino-Lite Digital Microscope.

The diffusion-limited cluster aggregation (DLCA) model has been implemented in a three-dimensional (3D) domain with a shape of an approximately spherical cap for simulating the drying process of a sessile nanofluid droplet. The droplet evaporation is investigated with the pinned three-phase line, resulting in shrinking contact angle and outward capillary flow. The cluster-cluster aggregation between the particles is taken into account in the model, and the transition from the uniform deposition to the coffee-ring pattern is established by altering the sticking probability parameter. The results of the simulation turn to be consistent with the experimental observation. The influence of the parameters, such as particle volumetric concentration and relative domain size, are studied.

The fatigue behavior of welded components is complicated by many factors intrinsic to the nature of welded joints. The mechanical properties of the material, the welding process and position, the type and geometry of the weld and the residual stress distribution across the weld are a few factors affecting fatigue behavior. Published studies [1, 2] have shown that weld geometry is significantly important in determining the fatigue strength of the weld. For a given weld geometry, the fatigue strength is determined by the severity of the stress concentration at the weld toe or at weld defects and by the soundness of the weld metal. The effect of external weld geometry profile on the fatigue behavior of welded small bore super duplex umbilical steel tubes is investigated. Root cause analysis consisting of fractography, metallography and weld profile measurement is carried out on pairs of fatigue failure samples which were tested at the same stress range but failed at significantly different number of cycles. The samples are selected from Technip Umbilicals Ltd (TU) fatigue database. Following the failure analysis, weld geometric profile measurements are performed on fatigue test samples that were prepared for testing. The weld profile was measured in terms of the external weld cap height, weld width and external linear misalignment. Axial fatigue tests are carried out on these samples which are pre-strained before test to simulate the plastic bending cycles typically experienced during the manufacturing and installation processes prior to operational service. The fatigue tests results are interrogated together with the measured geometric data to identify trends and anomalies. Key weld geometric fatigue performance criteria are subsequently identified. For the welded super duplex stainless steel (SDSS) tubes studied, the height of the weld and the weld toe angle provided the best correlation with fatigue life — shorter lives were obtained from specimens with the highest weld aspect ratio (weld height to width) and lowest weld toe angle.

Engineering critical assessment (ECA) is increasingly being used in the offshore industry to determine the maximum tolerable initial flaw size in girth welds for pipelines and risers. To account for the effect of the stress concentration factor (SCF) at the weld toe on the stress intensity factor range, ΔK, a magnification factor, Mk, is used. The existing Mk solutions given in BS 7910 were developed for fatigue assessment of flaws at the toes of fillet and butt welds and may not be suitable for assessing flaws at girth weld root toes, where the weld width is relatively small. On the other hand, for single-sided girth welds, fatigue cracking often initiates from weld toes on the root side, rather than on the weld cap side. Finite element (FE) modelling was performed to determine a 2D Mk solution for ECA of a flaw at the weld root bead toe. The weld root bead profile was uniquely characterised by five variables including weld root bead width, weld root bead height, hi-lo, weld root bead angle and weld root bead radius. Following a parametric sensitivity study, defect size, weld root bead height and hi-lo were identified as the governing parameters. A total of 6,000 FE simulations was performed and three types of defect models, which covered different combinations of weld root bead height and hi-lo, were generated and analysed. A series of automation scripts were developed in the Python programming language and the Mk solution for each type of defect model was developed and provided in a parametric equation. The accuracy of the 2D Mk solutions was confirmed by the experimental data, in terms of both fatigue crack growth and S-N curves. It was found that the methods and Mk solutions currently recommended in BS 7910 and DNV OS-F101 are inappropriate for assessing a flaw at a girth weld root toe.