A Review of the Sacroiliac Joint

The purpose of this review is to explore the literature regarding sacroiliac joint motion in an attempt to ascertain the extent of movement possible, to describe relevant sacroiliac joint anatomy and joint function, and to review assessment and treatment techniques used with sacroiliac joint dysfunction. Sacroiliac joint motion and function have been the subject of much controversy among clinicians who treat low back pain. Because of its location, orientation, and morphology, the sacroiliac joint is a difficult joint to visualize clearly with radiographic procedures, which increases the problems in diagnosis of sacroiliac joint pathology. Although the arthrokinematics of the sacroiliac joint remain controversial, clinicians now generally agree that a small but significant amount of motion does occur at the sacroiliac joints. Many different descriptions of sacroiliac joint motion exist. Consequently, many different clinical tests are used to evaluate the joint. Palpation tests for sacroiliac joint dysfunction have shown poor intertester reliability, while provocation tests exhibit good intertester. Treatment techniques used by clinicians include modalities such as ice, massage, and electrical stimulation to reduce pain. Muscle energy techniques and mobilizations are used to correct sacroiliac joint positional faults. It is important to bear in mind that the effectiveness of these treatments is not well documented

Triangles, Long Paths, and Covered Sets

In chapter 2, we consider a generalization of the well-known Maker-Breaker triangle game for uniform hypergraphs in which Maker tries to build a triangle by choosing one edge in each round and Breaker tries to prevent her from doing so by choosing q edges in each round. The main result is the analysis of a new Breaker strategy using potential functions, introduced by Glazik and Srivastav (2019). Both bounds are of the order Θ(n3/2) so they are asymptotically optimal. The constant for the lower bound is 2-o(1) and for the upper bound it is 3√2. In chapter 3, we describe another Maker-Breaker game, namely the P3-game in which Maker tries to build a path of length 3. First, we show that the methods of chapter 2 are not applicable in this scenario and give an intuition why that might be the case. Then, we give a more simple counting argument to bound the threshold bias. In chapter 4, we consider the longest path problem which is a classic NP-hard problem that arises in many contexts. Our motivation to investigate this problem in a big-data context was the problem of genome-assembly, where a long path in a graph that is constructed of the reads of a genome potentially represents a long contiguous sequence of the genome. We give a semi-streaming algorithm. Our algorithm delivers results competitive to algorithms that do not have a restriction on the amount of memory. In chapter 5, we investigate the b-SetMultiCover problem, a classic combinatorial problem which generalizes the set cover problem. Using an LP-relaxation and analysis with the bounded differences inequality of C. McDiarmid (1989), we show that there is a strong concentration around the expectation

Is Prose Poetry a Conspiracy Against the Noble Qur'an? Poetics, Humans, and God in Contemporary Egypt

There is a peculiar relationship between contemporary poetry and perspectives that are deemed to be heretical by conservative audiences. This relationship is not fully accounted for by current anthropological theories of the secular. The field of literature has been successfully studied as a secular institution – both in the sense of the differentiation of institutions as well as in the sense of the subordination of the religious to the political. Such secularity appears as a rather safe, less controversial way to claim the power of some human entities in relation to God. Some poetry, by contrast, may be accused of heresy or unbelief even when written with pious intention. This suggests a dimension to being secular that is more offensive to conservative societal sensibilities, as it contrasts with deeply-held views on the proper form of the God-human relationship and the associated imaginaries, languages, and aesthetics. Based on a combination of ethnographic research in historical context and a theoretical focus on aesthetics and imagination of divine power as a constituent of human lives, it is proposed in this article that in addition to looking at state power, institutions, and the creation of a secular aesthetic normality, it is also necessary to look more closely at issues of faith, including heretical faith

There will be blood: expecting violence in Egypt, 2011-2013

Samuli Schielk

Second thoughts about the anthropology of Islam, or how to make sense of grand schemes in everyday life

"A growing body of anthropological research has turned to study Islam as a discursive tradition that informs the attempts of Muslims to live pious and moral lives, the aff ects and emotions they cultivate and the challenges they pose to a liberal secular ideology. While this turn has provided direction for a number of innovative studies, it appears to stop short of some key questions regarding everyday religious and moral practice, notably the ambivalence, the inconsistencies and the openness of people’s lives that never fi t into the framework of a single tradition. In short, there is too much Islam in the anthropology of Islam. To fi nd ways to account for both the ambivalence of people’s everyday lives and the often perfectionist ideals of good life, society and self they articulate, I argue that we may have to talk a little less about traditions, discourses and powers and a little more about the existential and pragmatic sensibilities of living a life in a complex and often troubling world. By broadening our focus to include the concerns, practice and experience of everyday life in its various moments and directions, we may eventually also be better able to make sense of the signifi cance of a grand scheme like Islam in it." [author's abstract

Shared Margins: an Ethnography with Writers in Alexandria after the Revolution

Shared Margins tells of writers, writing, and literary milieus in Alexandria, Egypt's second city. It de-centres cosmopolitan avant-gardes and secular-revolutionary aesthetics that have been intensively documented and studied since 2011. Instead, it offers a fieldwork-based account of various milieus and styles, and their common grounds and lines of division. Structured in two parts, Shared Margins gives an account of literature as a social practice embedded in milieus that at once enable and limit literary imagination, and of a life-worldly experience of plurality in absence of pluralism that marks literary engagements with the intimate and social realities of Alexandria after 2011. Literary writing, this book argues, has marginality as an at once enabling and limiting condition. It provides shared spaces of imaginary excess that may go beyond the taken-for-granted of a societal milieu, and yet are never unlimited. Literary imagination is part and parcel of such social conflicts and transformations, its role being neither one of resistance against power nor of guidance towards norms, but rather one of open-ended complicity

A Streaming Algorithm for the Undirected Longest Path Problem

We present the first streaming algorithm for the longest path problem in undirected graphs. The input graph is given as a stream of edges and RAM is limited to only a linear number of edges at a time (linear in the number of vertices n). We prove a per-edge processing time of O(n), where a naive solution would have required Omega(n^2). Moreover, we give a concrete linear upper bound on the number of bits of RAM that are required. On a set of graphs with various structure, we experimentally compare our algorithm with three leading RAM algorithms: Warnsdorf (1823), Pohl-Warnsdorf (1967), and Pongrasz (2012). Although conducting only a small constant number of passes over the input, our algorithm delivers competitive results: with the exception of preferential attachment graphs, we deliver at least 71% of the solution of the best RAM algorithm. The same minimum relative performance of 71% is observed over all graph classes after removing the 10% worst cases. This comparison has strong meaning, since for each instance class there is one algorithm that on average delivers at least 84% of a Hamilton path. In some cases we deliver even better results than any of the RAM algorithms

Epidemiology of campylobacteriosis in Germany – insights from 10 years of surveillance

Background: Campylobacteriosis caused by Campylobacter spp. is the most common notifiable bacterial gastrointestinal disease in Germany and a major problem in many other European countries as well. In contrast to other infectious diseases, e.g., salmonellosis, the annual number of notified campylobacteriosis cases has increased in Germany and other European countries from 2001–2010. Methods: National surveillance data from 2001 through 2010 were the basis of a detailed description of the epidemiological pattern of Campylobacter infections in Germany. Special focus was placed on geographical distribution and time trends of Campylobacter infections as well as the identification of risk groups. Results: In total, 588,308 cases of campylobacteriosis were recorded during the observed time period. The mean annual incidence increased from 67 cases/100,000 population in 2001 to 80/100,000 population in 2010. Almost 92% of the notified Campylobacter infections were acquired in Germany. A seasonal distribution was observed with a large peak in the summer months and a small peak in January. Incidence was highest in children ≤4 years and young adults 20–29 years of age. Especially young children living in rural regions in Germany seemed to be at high risk of Campylobacter infection. Conclusions: Campylobacter is the leading cause of bacterial gastroenteritis in Germany, and has been of rising public health concern. There is a need for enhanced prevention of Campylobacter infections and the data presented here may contribute to better target prevention measures with focus on identified risk groups such as children and young adults