Phytotoxic characterization of various fractions of Launaea procumbens

Allelopathic screening of various fractions of Launaea procumbens, collected from Wah Cantt (Punjab) Pakistan, was conceded to identify potent allelopathic fraction for future phytochemical analyses. For this purpose, radish root inhibition method was used to test allelopathic potential. Two different concentrations of 100 ppm and 1000 ppm of Launaea procumbens were used in this study. Methanolic and ethyl acetate fraction potently inhibited root and radical growth; comparative to other fractions, it might be due to the presence of bioactive allelochemicals. Based on this screening, both of these fractions were recommended for future bioassay guided isolation of allelochemicals.Key words: Launaea procumbens, radish seeds, root inhibition, Launaea procumbens methanolic fraction

A realistic path loss model for real-time communication in the urban grid environment for Vehicular Ad hoc Networks

Wireless signal transmission is influenced by environmental effects. These effects have also been challenging for Vehicular Ad hoc Network (VANET) in real-time communication. More specifically, in an urban environment, with high mobility among vehicles, a vehicle’s status from the transmitter can instantly trigger from line of sight to non-line of sight, which may cause loss of real-time communication. In order to overcome this, a deterministic signal propagation model is required, which has less complexity and more feasibility of implementation. Hence, we propose a realistic path loss model which adopts ray tracing technique for VANET in a grid urban environment with less computational complexity. To evaluate the model, it is applied to a vehicular simulation scenario. The results obtained are compared with different path loss models in the same scenario based on path loss value and application layer performance analysis. The proposed path loss model provides higher loss value in dB compared to other models. Nevertheless, the performance of vehicle-vehicle communication, which is evaluated by the packet delivery ratio with different vehicle transmitter density verifies improvement in real-time vehicle-vehicle communication. In conclusion, we present a realistic path loss model that improves vehicle-vehicle wireless real-time communication in the grid urban environment

The coloniality of the religious terrorism thesis

A dominant narrative, produced and reproduced especially by terrorism scholars, holds that terrorism in its worst form is religious. The most dangerous and non-negotiable form of terrorism, in other words, is the religious kind. At the same time, there is a recurring implication, proposed by many terrorism scholars and reflected in public discourse, that terrorism, no matter its official designation, is always inherently ‘religious’ or ‘religious-like’. Both this implication and the dominant narrative about the uniquely dangerous character of ‘religious terrorism’ – which I summarise as the Religious Terrorism Thesis – builds on colonial knowledge and assumptions about ‘religion’. Religion is also, as I argue, written into the category ‘terrorism’ and enables its negative discursive power and the colonial imagination of ‘terrorism’ as racialised and a system-threat to (Western) modernity. Terrorism, therefore, can never constitute a neutral signifier of a specific kind of political violence. Instead, it functions as a negative ideograph to Western societies, which means it functions to uphold the project of Western modernity/coloniality. The Religious Terrorism Thesis, which I identify as the foundation for the dominant discourse on terrorism today, is a crucial element of coloniality and justifies many controversial and contemporary counterterrorism practices

Speaking “religion” through a gender code: The discursive power and gendered-racial implications of the religious label

Drawing on the scholarship of Critical Religion, this article shows how the modern category “religion” operates through a gender code which upholds its discursive power and enables the production of religious—and therefore racial—hierarchies. Specifically, it argues that mentioning religion automatically makes gender present in discourse. Acknowledging religion as an inherently gendered category in this way gives further insight into the discursive power and functioning of the religious label. With the example of the Westphalian production of the “myth of religious violence” and the employment of “religion” in colonial contexts, I demonstrate how a gender code upholds and enables the discursive power of religion. Religion is both gendered (as part of the Western public/private binary) and gendering (in colonial contexts vis-à-vis non-Christian, non-White religions). Acknowledging the multiple ways in which religion is gendered and gendering, then, has important bearings on the analysis of religion’s racializing function which is upheld and aided by the gender code through which religion is spoken

Studying ‘Religion’ Critically and the Decolonial Turn: Lessons for Critical Terrorism Studies

Being ‘critical’ when studying religion, whilst it does not have to be limited to studying religion’s discursive (and colonial) employments only, it certainly has to begin with it, if we aim to contribute to much-needed decolonial efforts across the social science disciplines. Critically studying religion, as I argue in this article, means starting with a normative and moral responsibility and aspiration towards a more just, equal, and progressive social world that grapples with the coloniality, and structures of white supremacy we are all embedded in. In this article I will reflect on the contributions of Critical Religion (CR) especially to fields like (Critical) Terrorism Studies and related disciplines which regularly discuss ‘religion’ and religiously-inspired violence but never actually acknowledge ‘religion’s’ colonial and gendered implications, definitional instability, or Euro- and Christian-centric invention. The work Critical Religion does in uncovering and excavating the modern-colonial origins of the term ‘religion’, I argue, is essential in realising and contributing to the decolonial turn we are currently experiencing and which disciplines like (Critical) Terrorism Studies can only benefit from

Identification and characterization of the Bcl-2- associated athanogene (BAG) protein family in rice

The Bcl-2-associated athanogene (BAG) proteins are involved in the regulation of Hsp70/HSC70 in animals. There are six BAG genes in human that encode nine isoforms with different subcellular locations. Arabidopsis thaliana is reported to contain seven BAG proteins. We searched BAG proteins in Oryza sativa using profile-sequence (Pfam) and profile-profile (FFAS) algorithms and found six homologs. The BAG protein family in O. sativa can be grouped into two classes based on the presence of other conserved domains. Class I consists of four OsBAG genes (1 to 4) containing an additional ubiquitin-like domain, structurally similar to the human BAG1 proteins and might be BAG1 orthologs in plants. Class II consists of two OsBAG genes (5 and 6) containing calmodulin-binding domain. Multiple sequence alignment and structural models of O. sativa BAG proteins showed conservation of surface charge (except OsBAG5) and critical residues for the binding of BAG domain to Hsp70 nucleotide binding domain (NB). Meta analysis of microarray data showed that OsBAG genes are up or down regulated under different stresses (biotic and abiotic). Data obtained from real-time PCR of OsBAG genes under heat stress showed that maximum induction in the expression of all the genes occurred after one hour exposure to heat stress, while reduction in the expression was observed in the following time course and ultimately returned to the basal level at 24 h treatment. These results suggest that OsBAG genes might play important role at the onset of heat stress. A further detailed study may explore the exact function of the members of this gene family and help to make understanding of programmed cell death (PCD) mechanism in plants.Key words: Rice, ubiquitin-like domain, nucleotide-binding domain, real-time PCR

A hierarchy of effective teaching and learning to acquire competence in evidenced-based medicine

BACKGROUND: A variety of methods exists for teaching and learning evidence-based medicine (EBM). However, there is much debate about the effectiveness of various EBM teaching and learning activities, resulting in a lack of consensus as to what methods constitute the best educational practice. There is a need for a clear hierarchy of educational activities to effectively impart and acquire competence in EBM skills. This paper develops such a hierarchy based on current empirical and theoretical evidence. DISCUSSION: EBM requires that health care decisions be based on the best available valid and relevant evidence. To achieve this, teachers delivering EBM curricula need to inculcate amongst learners the skills to gain, assess, apply, integrate and communicate new knowledge in clinical decision-making. Empirical and theoretical evidence suggests that there is a hierarchy of teaching and learning activities in terms of their educational effectiveness: Level 1, interactive and clinically integrated activities; Level 2(a), interactive but classroom based activities; Level 2(b), didactic but clinically integrated activities; and Level 3, didactic, classroom or standalone teaching. SUMMARY: All health care professionals need to understand and implement the principles of EBM to improve care of their patients. Interactive and clinically integrated teaching and learning activities provide the basis for the best educational practice in this field

Positionality Statements as a Function of Coloniality: Interrogating Reflexive Methodologies

Declaration of positionality and the confession of privilege as a way of revealing unequal power dynamics in knowledge pro- duction has become an increasingly encouraged reflexive practice in international relations and other disciplines. However, we interrogate the potentially negative implications of this methodology, occurring through a reification of material, assumed, and imagined hierarchies between people, which then is advertised and (re)produced by its utterance. We further query the modernist origins of reflexive methodology, which has inspired the practice of declaring positionality, and argue that its under- pinning coloniality has bearings for its use today. We then explore how this coloniality manifests: Thus, first, we consider the extent to which publicly acknowledging privilege paradoxically acts as a means of centering whiteness through the narcissistic gaze and an assertion of legitimacy. Second, we argue positionality statements offer a redemption of guilt for the hegemonic researcher. And lastly, rather than ameliorating unequal power dynamics in the production of knowledge, we contend posi- tionality statements may constitute hidden power moves in which one is able to signal and reinstate one's authority vis-à-vis people, but especially women, of color. We end with a call for a reparative scholarship that acknowledges these limitations in positionality statements