Policing COVID-19 through procedural informality in Pakistan

How do police officers respond to public emergencies in developing countries where state institutions struggle to protect citizens and officers alike? This paper investigates police response to the COVID-19 crisis in Pakistan and develops an analytical framework of ‘procedural informality’, a condition whereby state policies are constructed and conveyed to state officials with the tacit acceptance that these are likely to be implemented through informal practice. Procedural informality, therefore, is central to official state practice. It is argued that procedural informality manifested itself in Pakistan during the COVID-19 pandemic in three ways: (1) due to a lack of support from the government, it enabled officers to rely on interpersonal connections within the private sector; (2) intra-organisationally, it forced the police to make hasty decisions due to contradictory policies that strained the workforce, but also allowed it to creatively manage demand; and (3) it compelled the police to respond to non-compliance with a heavy hand, whilst equipping them to protect vulnerable communities and maintain individual relationships. In this way, procedural informality enabled the police to try to meet demand with flexibility, which was encouraged and expected by those interacting with the police. Procedural informality moves beyond the formal-informal dichotomy to show how informality facilitates the implementation of formal policy goals, and the operations of street-level bureaucrats, especially during a crisis. This paper contributes to debates on informality within state institutions and in state practice, while providing empirical insights on police response to COVID-19 from a developing country

Policing in pandemics: A systematic review and best practices for police response to COVID-19

The COVID-19 pandemic has created a range of unforeseen and unprecedented challenges for police departments worldwide. In light of these challenges, the goal of this review is to understand the potential short- and long-term effects of disasters and public health emergencies on policing organisations and officers. A total of 72 studies were eligible for inclusion, based on their focus on policing and police work during and in the aftermath of natural disasters and public health emergencies. Through an extensive review, we compile and analyse the most common issues and best practices identified in the literature, and discuss ‘what works’ in the context of policing such emergencies. The literature reveals four categories of issues predominantly raised in this context, namely police-community relations, the mental health and wellbeing of officers, intra-organisational challenges, as well as inter-agency collaboration and cooperation. Based on our review and analysis, we offer a list of recommendations relevant for policing the current COVID-19 outbreak. The findings of this review have immediate implications for policing during COVID-19 but also cover long-term effects, providing valuable recommendations for after the crises has passed

Using TF-IDF n-gram and word embedding cluster ensembles for author profiling: Notebook for PAN at CLEF 2017

This paper presents our approach and results for the 2017 PAN Author Profiling Shared Task. Language-specific corpora were provided for four langauges: Spanish, English, Portuguese, and Arabic. Each corpus consisted of tweets authored by a number of Twitter users labeled with their gender and the specific variant of their language which was used in the documents (e.g. Brazilian or European Portuguese). The task was to develop a system to infer the same attributes for unseen Twitter users. Our system employs an ensemble of two probabilistic classifiers: a Logistic regression classifier trained on TF-IDF transformed n-grams and a Gaussian Process classifier trained on word embedding clusters derived for an additional, external corpus of tweets

Rehabilitation of degraded coastal Mediterranean rangelands using Panicum turgidum Forssk.

Panicum turgidum Forssk. is a widely distributed species in the Egyptian desert. This species meets all criteria for a multipurpose plant and is capable of being used in the rehabilitation of degraded ecosystems. The paper presents the most suitable methods for the propagation of and testing the possibility and capacity of germination and growth of different populations of Panicum turgidum. Besides investigating the socioeconomic value of this species through the documentation and survey of its traditional uses, the study illustrates the importance of P. turgidum for the local inhabitants as a very important fodder plant, for both domestic and wild animals. The main benefit from propagating this plant is an increase in grazing potentialities and reduction of the use of artificial feed. The results of the present study shows that individuals propagated by direct seed sowing attained the highest values of growth parameters, followed by those propagated by rhizomes, then those propagated by seedlings. The most suitable method for propagating it, in this region, is by grains and the best time is the first week of June. The results also show that the P. turgidum populations collected from the eastern desert attained the highest germination percentage andmaximum values of growth parameters upon cultivation. Thus, eastern desert populations are recommended as a good source of grains for rehabilitation programs

Directly imaging spin polarons in a kinetically frustrated Hubbard system

The emergence of quasiparticles in quantum many-body systems underlies the rich phenomenology in many strongly interacting materials. In the context of doped Mott insulators, magnetic polarons are quasiparticles that usually arise from an interplay between the kinetic energy of doped charge carriers and superexchange spin interactions. However, in kinetically frustrated lattices, itinerant spin polarons - bound states of a dopant and a spin-flip - have been theoretically predicted even in the absence of superexchange coupling. Despite their important role in the theory of kinetic magnetism, a microscopic observation of these polarons is lacking. Here we directly image itinerant spin polarons in a triangular lattice Hubbard system realised with ultracold atoms, revealing enhanced antiferromagnetic correlations in the local environment of a hole dopant. In contrast, around a charge dopant, we find ferromagnetic correlations, a manifestation of the elusive Nagaoka effect. We study the evolution of these correlations with interactions and doping, and use higher-order correlation functions to further elucidate the relative contributions of superexchange and kinetic mechanisms. The robustness of itinerant spin polarons at high temperature paves the way for exploring potential mechanisms for hole pairing and superconductivity in frustrated systems. Furthermore, our work provides microscopic insights into related phenomena in triangular lattice moir\'{e} materials.Comment: 7 pages (4 figures) + 6 pages methods (7 figures

Probing site-resolved correlations in a spin system of ultracold molecules

Synthetic quantum systems with interacting constituents play an important role in quantum information processing and in elucidating fundamental phenomena in many-body physics. Following impressive advances in cooling and trapping techniques, ensembles of ultracold polar molecules have emerged as a promising synthetic system that combines several advantageous properties. These include a large set of internal states for encoding quantum information, long nuclear and rotational coherence times and long-range, anisotropic interactions. The latter are expected to allow the exploration of intriguing phases of correlated quantum matter, such as topological superfluids, quantum spin liquids, fractional Chern insulators and quantum magnets. Probing correlations in these phases is crucial to understand their microscopic properties, necessitating the development of new experimental techniques. Here we use quantum gas microscopy to measure the site-resolved dynamics of quantum correlations in a gas of polar molecules in a two-dimensional optical lattice. Using two rotational states of the molecules, we realize a spin-1/2 system where the particles are coupled via dipolar interactions, producing a quantum spin-exchange model. Starting with the synthetic spin system prepared far from equilibrium, we study the evolution of correlations during the thermalization process for both spatially isotropic and anisotropic interactions. Furthermore, we study the correlation dynamics in a spin-anisotropic Heisenberg model engineered from the native spin-exchange model using Floquet techniques. These experiments push the frontier of probing and controlling interacting systems of ultracold molecules, with prospects for exploring new regimes of quantum matter and characterizing entangled states useful for quantum computation and metrology

A two-dimensional programmable tweezer array of fermions

We prepare high-filling two-component arrays of up to fifty fermionic atoms in optical tweezers, with the atoms in the ground motional state of each tweezer. Using a stroboscopic technique, we configure the arrays in various two-dimensional geometries with negligible Floquet heating. Full spin- and density-resolved readout of individual sites allows us to post-select near-zero entropy initial states for fermionic quantum simulation. We prepare a correlated state in a two-by-two tunnel-coupled Hubbard plaquette, demonstrating all the building blocks for realizing a programmable fermionic quantum simulator