549 research outputs found
Violence Against Architecture: The Lost Cultural Heritage of Syria and Iraq
This thesis examines ancient architecture within Syria and Iraq that has been deliberately destroyed by violence. The act of destroying architecture and monuments in both Syria and Iraq, which is often-historical UNESCO protected, will invariably violate various laws, such as the 1954 Hague Convention or the Rome Statute. Since post-2011 Syria, all of humanity has been shocked by continuous warfare that, in addition to causing untold loss of human life and suffering, has included a series of episodes of violence against architecture, all of which is so egregious that foreign governments and non government organizations are constantly engaged in efforts to identify new approaches to contain the Syrian war and the Iraqi conflict.
Palmyra and its ancient art and architecture are located within the Syrian steppe. The city historically, over the past two thousand years, has been both admired and disdained by diverse elements of Syria’s population. A recent cogent example is when Palmyra dominated the news on March 28, 2016. Powerful images of demolished ancient architecture and monuments told a story of ideological hatred as two ancient temples (Baalshamin and Ba’al), ancient monumental arches and other monuments were blown up in a war rife with atrocities inflicted on the civilian population. Through architectural stillness and ruin, the damaged remains focused the public’s attention on the destruction of an ancient civilization and its memory.
This thesis considers the grave devastation of architecture that has occurred in Palmyra, Syria and Mosul, Iraq, whose archeological sites have been aggressively attacked by the group that will be referred to in this paper as Da’esh (also known as IS, ISIS, ISIL or the Islamic State). The damaged buildings or monuments that will be discussed include the following:
1) The Great Temple of Ba’al, Palmyra
2) Sanctuary of Baal-Shamin, Palmyra
3) Monumental Arch, Palmyra
4) Tower Tombs, Palmyra
5) Nimrud, (Mosul) Iraq
6) Nineveh Archaeological Site, Nergal Gate, Shrine of Jonah, Nineveh (Mosul), Iraq
I will argue that the destruction of architecture by Da’esh and other militant organizations represents the conduct of criminal and immoral warmongers. The destruction by Da’esh of some of Palmyra’s archeological remains, the Shrine of Jonah and the ancient sites of Nineveh and Nimrud is intrinsic to their effort to achieve power in the region, and articulates their intention to create an Islamic State in Syria and Iraq by purging the region of those they reject as apostates, infidels, idol worshipers, Yazidis and Shi’a Muslims.
Not only are the citizens of Syria at war with unceasing sectarian divisions, but the significance of cultural heritage is also under attack in both Syria and Iraq. Buildings and monuments have political and symbolic meanings, and I will argue that violence against architecture in Syria and Iraq by Da’esh is part of its effort to erase history and cast off memories of ancient rule in order to create a new historical memory. The meaning of new and old wars will assist in analyzing the causes of such purposeful violence against architecture and its effect of unraveling cultures and eradicating past civilizations
Meeting their potential: the role of education and technology in overcoming disadvantage and disaffection in young people
This report is a review of literature, policy and reported practice, exploring the potential of technology to mitigate disaffection and disadvantage in education and raise attainment of those young people who are under-achieving in school or other educational settings
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The Dynamics of Sperm Cooperation in a Competitive Environment
Sperm cooperation has evolved in a variety of taxa and is often considered a response to sperm competition, yet the benefit of this form of collective movement remains unclear. Here we use fine-scale imaging and a minimal mathematical model to study sperm aggregation in the rodent genus Peromyscus. We demonstrate that as the number of sperm cells in an aggregate increase, the group moves with more persistent linearity but without increasing speed; this benefit, however, is offset in larger aggregates as the geometry of the group forces sperm to swim against one another. The result is a non-monotonic relationship between aggregate size and average velocity with both a theoretically predicted and empirically observed optimum of 6-7 sperm/aggregate. To understand the role of sexual selection in driving these sperm group dynamics, we compared two sister-species with divergent mating systems and find that sperm of P. maniculatus (highly promiscuous), which have evolved under intense competition, form optimal-sized aggregates more often than sperm of P. polionotus (strictly monogamous), which lack competition. Our combined mathematical and experimental study of coordinated sperm movement reveals the importance of geometry, motion and group size on sperm velocity and suggests how these physical variables interact with evolutionary selective pressures to regulate cooperation in competitive environments.Engineering and Applied SciencesOrganismic and Evolutionary Biolog
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The dynamics of sperm cooperation in a competitive environment
Sperm cooperation has evolved in a variety of taxa and is often considered a response to sperm competition, yet the benefit of this form of collective movement remains unclear. Here, we use fine-scale imaging and a minimal mathematical model to study sperm aggregation in the rodent genus Peromyscus. We demonstrate that as the number of sperm cells in an aggregate increase, the group moves with more persistent linearity but without increasing speed. This benefit, however, is offset in larger aggregates as the geometry of the group forces sperm to swim against one another. The result is a non-monotonic relationship between aggregate size and average velocity with both a theoretically predicted and empirically observed optimum of six to seven sperm per aggregate. To understand the role of sexual selection in driving these sperm group dynamics, we compared two sister-species with divergent mating systems. We find that sperm of Peromyscus maniculatus (highly promiscuous), which have evolved under intense competition, form optimal-sized aggregates more often than sperm of Peromyscus polionotus (strictly monogamous), which lack competition. Our combined mathematical and experimental study of coordinated sperm movement reveals the importance of geometry, motion and group size on sperm velocity and suggests how these physical variables interact with evolutionary selective pressures to regulate cooperation in competitive environments
Connecting Clump Sizes in Turbulent Disk Galaxies to Instability Theory
In this letter we study the mean sizes of Halpha clumps in turbulent disk
galaxies relative to kinematics, gas fractions, and Toomre Q. We use 100~pc
resolution HST images, IFU kinematics, and gas fractions of a sample of rare,
nearby turbulent disks with properties closely matched to z~1.5-2 main-sequence
galaxies (the DYNAMO sample). We find linear correlations of normalized mean
clump sizes with both the gas fraction and the velocity dispersion-to-rotation
velocity ratio of the host galaxy. We show that these correlations are
consistent with predictions derived from a model of instabilities in a
self-gravitating disk (the so-called "violent disk instability model"). We also
observe, using a two-fluid model for Q, a correlation between the size of
clumps and self-gravity driven unstable regions. These results are most
consistent with the hypothesis that massive star forming clumps in turbulent
disks are the result of instabilities in self-gravitating gas-rich disks, and
therefore provide a direct connection between resolved clump sizes and this in
situ mechanism.Comment: Accepted to Apj Letter
Automatic detection of expressed emotion from Five-Minute Speech Samples:Challenges and opportunities
Research into clinical applications of speech-based emotion recognition (SER)technologies has been steadily increasing over the past few years. One such potential application is the automatic recognition of expressed emotion (EE) components within family environments. The identification of EE is highly important as they have been linked with a range of adverse life events. Manual coding of these events requires time-consuming specialist training, amplifying the need for automated approaches. Herein we describe an automated machine learning approach for determining the degree of warmth, a key component of EE, from acoustic and text natural language features. Our dataset of 52 recorded interviews is taken from recordings, collected over 20 years ago, from a nationally representative birth cohort of British twin children, and was manually coded for EE by two researchers (inter-rater reliability 0.84–0.90). We demonstrate that the degree of warmth can be predicted with an F1-score of 64.7% despite working with audio recordings of highly variable quality. Our highly promising results suggest that machine learning may be able to assist in the coding of EE in the near future
Tactical release of a sexually-selected pheromone in a swordtail fish
© The Authors, 2010. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS One 6 (2011): e16994, doi:10.1371/journal.pone.0016994.Chemical communication plays a critical role in sexual selection and speciation in fishes; however, it is generally assumed that most fish pheromones are passively released since most fishes lack specialized scent glands or scent-marking behavior. Swordtails (genus Xiphophorus) are widely used in studies of female mate choice, and female response to male chemical cues is important to sexual selection, reproductive isolation, and hybridization. However, it is unclear whether females are attending to passively produced cues, or to pheromones produced in the context of communication. We used fluorescein dye injections to visualize pulsed urine release in male sheepshead swordtails, Xiphophorus birchmanni. Simultaneous-choice assays of mating preference showed that females attend to species- and sex-specific chemical cues emitted in male urine. Males urinated more frequently in the presence and proximity of an audience (conspecific females). In the wild, males preferentially courted upstream of females, facilitating transmission of pheromone cues. Males in a teleost fish have evolved sophisticated temporal and spatial control of pheromone release, comparable to that found in terrestrial animals. Pheromones are released specifically in a communicative context, and the timing and positioning of release favors efficient signal transmission.This work was funded by the National Science Foundation (www.nsf.gov), IOB-0447665
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