Understories has 71 ratings and 8 reviews. Rather than reproduce traditional understandings of nature and environment, Jake Kosek shifts the focus toward. Kosek, Jake. As intensely Catholic recipients of Spanish colonial largesse, non-native ancestral New Mexicans were on welfare the second they came to the new world. Help Center Find new research papers in: As such, the signature of the state is never fixed, but instead can be reproduced, forged, or foisted according to context and contingency. Steel rated it liked it Jan 02, Drawing on two years of ethnographic fieldwork and extensive archival research, he shows how these contentious natures are integral both to environmental politics and the formation of racialized citizens, politicized landscapes, and modern regimes of rule.
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The role of Oklahoma's two comprehensive research universities in the future of the state was the Committee's overriding consideration. Much discussion….
Verifying entanglement in the Hong- Ou -Mandel dip. The Hong- Ou -Mandel interference dip is caused by an entangled state, a delocalized biphoton state.
We propose a method of detecting this entanglement by utilizing inverse Hong- Ou -Mandel interference, while taking into account vacuum and multiphoton contaminations, phase noise, and other imperfections.
The method uses just linear optics and photodetectors, and for single-mode photodetectors we find a lower bound on the amount of entanglement. Hong- Ou -Mandel interferometer with cavities: Theory. We study the number of coincidences in a Hong- Ou -Mandel interferometer exit whose arms have been supplemented with the addition of one or two optical cavities. The fourth-order correlation function at the beam splitter exit is calculated.
In the regime where the cavities lengths are larger than the one-photon coherence length, photon coalescence and anticoalescence interference is observed. Feynman's path diagrams for the indistinguishable processes that lead to quantum interference are presented. The construction of an optical XOR gate is discussed as an application for the Hong- Ou -Mandel interferometer with two cavities. Sidi Ali Ou Azza is the latest meteorite fall in Morocco, it occurred on 28 July very close about 40 km to Tissint martian shergottite fall that occurred on 18 July It's one of the small group of 23 L4 ordinary chondrite falls.
PubMed Central. Resumo O texto encontra-se estruturado em quatro partes. Ao final, apresentamos a bibliografia e fontes consultadas. Hiperplasia angiolinfoide com eosinofilia: um caso raro em cavidade oral. In this work we examine how nonlinearity can smear statistical photon bunching in the HOM interferometer.
We model both the nonlinearity and a balanced beam splitter with a single two-level system and calculate a finite probability of anti-bunching arising in this geometry.
We thus argue that the presence of such nonlinearity would reduce the visibility in the standard HOM setup, offering some explanation for the diminution of the HOM visibility observed in many experiments. We use the same model to show that the nonlinearity affects a resonant two-photon propagation through a two-level impurity in a waveguide due to a "weak photon blockade" caused by the impossibility of double-occupancy and argue that this effect might be stronger for multi-photon propagation.
Attosecond-resolution Hong- Ou -Mandel interferometry. When two indistinguishable photons are each incident on separate input ports of a beamsplitter, they "bunch" deterministically, exiting via the same port as a direct consequence of their bosonic nature. This two-photon interference effect has long-held the potential for application in precision measurement of time delays, such as those induced by transparent specimens with unknown thickness profiles.
However, the technique has never achieved resolutions significantly better than the few-femtosecond micrometer scale other than in a common-path geometry that severely limits applications. We develop the precision of Hong- Ou -Mandel interferometry toward the ultimate limits dictated by statistical estimation theory, achieving few-attosecond or nanometer path length scale resolutions in a dual-arm geometry, thus providing access to length scales pertinent to cell biology and monoatomic layer two-dimensional materials.
Geology and hydrocarbon potential of the Oued Mya basin, Algeria. The Oued Mya hydrocarbon system is located in the Sahara basin. It is one of the best producing basins in Algeria, along with the Ghadames and Illizi basins.
The stratigraphic section consists of Paleozoic and Mesozoic, and is about m thick. This intracratonic basin is limited to the north by the Toughourt saddle, and to the west and east it is flanked by regional arches, Allal-Tilghemt and Amguid-Hassi Messaoud, which culminate in the super giant Hassi Messaoud and Hassi R'mel hydrocarbon accumulations, respectively, producing oil from the Cambrian sands and gas from the Trissic sands.
Results of maturation modeling indicate that the lower Silurian source is in the oil window. The Ordovician shales are also source rocks, but in a second order. Clastic reservoirs are in the Trissic sequence, which is mainly fluvial deposits with complex alluvial channels, and the main target in the basin. Clastic reservoirs in the lower Devonian section have a good hydrocarbon potential east of the basin through a southwest-northwest orientation.
The Late Trissic-Early Jurassic evaporites that overlie the Triassic clastic interval and extend over the entire Oued Mya basin, are considered to be a super-seal evaporite package, which consists predominantly of anhydrite and halite. For paleozoic targets, a large number of potential seals exist within the stratigraphic column. This super seal does not present oil dismigration possibilities.
We can infer that a large amount of the oil generated by the Silurian source rock from the beginning of Cretaceous until now still is not discovered and significantly greater volumes could be trapped within structure closures and mixed or stratigraphic traps related to the fluvial Triassic sandstones, marine Devonian sands, and Cambrian-Ordovician reservoirs.
Signatures of Hong- Ou -Mandel interference at microwave frequencies. Two-photon quantum interference at a beam splitter, commonly known as Hong- Ou -Mandel interference, is a fundamental demonstration of the quantum mechanical nature of electromagnetic fields and a key component of various quantum information processing protocols.
The phenomenon was recently demonstrated with microwave-frequency photons by Lang et al Nature Phys. This experiment employed circuit QED systems as sources of microwave photons, and was based on the measurement of second-order cross-correlation and auto-correlation functions of the microwave fields at the outputs of the beam splitter using linear detectors.
Here we present the calculation of these correlation functions for the cases of inputs corresponding to: i trains of pulsed Gaussian or Lorentzian single microwave photons and ii resonant fluorescent microwave fields from continuously driven circuit QED systems. In both cases, the signature of two-photon quantum interference is a suppression of the second-order cross-correlation function for small delays. The experiment described in Lang et al was performed with trains of Lorentzian single photons, and very good agreement with experimental data is obtained.
The results are relevant not only to interference experiments using circuit QED systems, but any such setup with highly controllable sources and time-resolved detection. Modelling soil salinity in Oued El Abid watershed, Morocco. Soil salinisation is a phenomenon considered to be a real threat to natural resources in semi-arid climates. The phenomenon is controlled by soil texture, depth, slope etc.
This study was conducted in the watershed of Oued El Abid in the region of Beni Mellal-Khenifra, aimed at localising saline soil using remote sensing and a regression model. The spectral indices were extracted from Landsat imagery 30 m resolution. A linear correlation of electrical conductivity, which was calculated based on soil samples ECs , and the values extracted based on spectral bands showed a high accuracy with an R2 Root square of 0.
This study proposes a new spectral salinity index using Landsat bands B1 and B4. This hydro-chemical and statistical study, based on a yearlong survey, showed a moderate amount of salinity, which threatens dam water quality. The results present an improved ability to use remote sensing and regression model integration to detect soil salinity with high accuracy and low cost, and permit intervention at an early stage of salinisation.
Geology and hydrocarbon potential of the Oued Mya Basin, Algeria. It is one of the producing basin in Algeria. The stratigraphic section consists of Paleozoic and Mesosoic, it is about m thick. In the eastern part, the basin is limited by the Hassi-Messaoud high zone which is a giant oil field producing from the Cambrian sands.
The western part is limited by Hassi R'mel which is one of the biggest gas field in the world, it is producing from the triassic sands. The Mesozoic section is laying on the lower Devonian and in the eastern part, on the Cambrian. The Ordovician shales are also a source rock, but in a second order. Clastic reservoirs are in the Triassic sequence which is mainly fluvial deposits with complex alluvial channels, it is the main target in the basin.
Clastic reservoirs within the lower Devonian section have a good hydrocarbon potential in the east of the basin through a southwest-northeast orientation. This is considered as a super-seal evaporate package, which consists predominantly of anhydrite and halite. For Paleozoic targets, a large number of potential seals exist within the stratigraphic column.
The authors infer that a large amount of the oil volume generated by the Silurian source rock from the beginning of Cretaceous until now, still not discovered could be trapped within structure closures and mixed or stratigraphic traps related to the fluvial Triassic sandstones, marine Devonian sands and Cambro-Ordovician reservoirs.
Along its borders from east to west are the remnants of basal conglomerates. Passing laterally towards the centre of the basin are fine-grained fluvial-lacustrine sediments or flood-plain deposits.
The important accumulation m of sediments, associated with climatic and tectonic changes, caused substantial subsidence in a late orogenic setting. The remnants of sporadic volcanic products shards found in the Ida Ou Zal and the Ida Ou Zika Basins suggest nearby simultaneous magmatic activity. Illuminates the critical theory project, with themes permeating the theoretical constructions of Frankfurt Germany.
Debates the predominance of positivism in the production of knowledge. Speculates that "the essay as form" constitutes itself as a representation of the concept of the Enlightenment. Concludes with a dialogue between…. Deterministic quantum splitter based on time-reversed Hong- Ou -Mandel interference. By utilizing a fiber-based indistinguishable photon-pair source in the 1.
Chen et al. Depth to ground water varies from 1. To intercept and treat the plume of contamin O texto encontra-se estruturado em quatro partes. Gas physical conditions and kinematics of the giant outflow Ou 4. The recently discovered bipolar outflow Ou 4 has a projected size of more than one degree in the plane of the sky.
It is apparently centred on the young stellar cluster - whose most massive representative is the triple system HR - inside the H ii region Sh The driving source, the nature, and the distance of Ou 4 are not known. Aims: The basic properties of Ou 4 and its environment are investigated to shed light on the origin of this remarkable outflow.
Methods: Deep narrow-band imagery of the whole nebula at arcsecond resolution was obtained to study the details of its morphology. Long-slit spectroscopy of the bipolar lobe tips was secured to determine the gas ionisation mechanism, physical conditions, and line-of-sight velocities. An estimate of the proper motions at the tip of the south lobe using archival plate images was attempted.
The existing multi-wavelength data for Sh and HR were also comprehensively reviewed. Results: The observed morphology of Ou 4, its emission-line spatial distribution, line flux ratios, and the kinematic modelling developed adopting a bow-shock parabolic geometry, illustrate the expansion of a shock-excited fast collimated outflow. The observed radial velocities of Ou 4 and its reddening are consistent with those of Sh and HR Conclusions: The apparent position of Ou 4 and the properties studied in this work are consistent with the hypothesis that Ou 4 is located inside the Sh H ii region, suggesting that it was launched some 90 yr ago by HR However, we cannot.
He identifies the basic issues facing the Brazilian Navy: overdependence on foreign equipment, lack of funds Department of Defense, any other US Government agency, or any agency of a foreign government. We demonstrate deterministic generation of two distinct collective excitations in one atomic ensemble, and we realize the Hong- Ou -Mandel interference between them.
En la agricultura predominaban los latifundios. En contraparte, Lerdo se vio imposibilitado para adquirir armamento en Estados Unidos. Un hecho significativo del desarrollo capitalista fue el fortalecimiento de los banqueros nacionales y extranjeros. Dichas limitaciones nunca fueron observadas.
Solicitud de descarga Contacto: MemoriaPoliticadeMexico gmail. El 28 de abril de , las tropas a su mando tuvieron la primera batalla con los invasores franceses en las cumbres de Acultzingo. Eran 40, sitiadores contra 12, defensores. El 15 de enero de , el mariscal Bazaine con 9, franceses y 1, conservadores puso sitio a la ciudad de Oaxaca. El Neoporfirismo. Fue la era de los grandes trusts de los ferrocarriles de Vanderbilt, de la banca de J.
The role of Oklahoma's two comprehensive research universities in the future of the state was the Committee's overriding consideration. Much discussion…. Verifying entanglement in the Hong- Ou -Mandel dip. The Hong- Ou -Mandel interference dip is caused by an entangled state, a delocalized biphoton state. We propose a method of detecting this entanglement by utilizing inverse Hong- Ou -Mandel interference, while taking into account vacuum and multiphoton contaminations, phase noise, and other imperfections. The method uses just linear optics and photodetectors, and for single-mode photodetectors we find a lower bound on the amount of entanglement. Hong- Ou -Mandel interferometer with cavities: Theory.