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Abstract: We present a complete derivation of the exact evolution of quantum mechanics for the case when the underlying spectrum is continuous. We base our discussion on the use of the Weyl eigendifferentials. We show that a quantum system being in an eigenstate of an invariant will remain in the subspace generated by the eigenstates of the invariant, thereby acquiring a generalized non-adiabatic or Aharonov–Anandan geometric phase linked to the diagonal element of the S matrix. The modified Pöschl–Teller potential and the time-dependent linear potential are worked out as illustrations. [Copyright &y& Elsevier]

We report a highly localized, rapid-response pressure measurement of a shock wave front in a solid by utilizing a miniature fiber-optic-based probe. The probe used was a 100 μm-long fiber Bragg grating (FBG) inscribed on a standard silica communication fiber, 125 μm in diameter. The optical fiber was embedded within a ceramic zirconia ferrule and was shocked axially by a polycarbonate impactor fired from a gas gun. In a second ferrule, included in the same experiment, a 1 mm long FBG was embedded for comparison. Both FBGs were positioned at the front face of their respective ferrules, in order to sense the region where the shock wave is pristine, with no release waves, and where the stress conditions were expected to be constant for a few hundreds of nanoseconds. A simulation has been performed using LS-DYNA software describing the temporal dependence of the axial stress operating on the zirconia target and the embedded fiber gratings. The reflected spectra of both fiber grating probes were interrogated by an array of wavelength division demultiplexers and 200 MHz InGaAs detectors. Both probes exhibited a wavelength shift that corresponded to the pressure profile of the shock wave that traveled through the fiber, agreeing quite well with the predictions of the simulation. The wavelength blueshift was about 3.5 nm under a calculated shock pressure in the silica of 320 MPa, induced by a shock pressure of 700 MPa in the host zirconia target. Overall, the 100 μm probe demonstrated superior measurement capabilities to the 1 mm probe, both in time response and localization, as well as better agreement with the simulation. Multiple probes can be applied to provide high resolution mapping of shock phenomena in space and time, thus assisting in establishing the dynamic properties of materials under impact loading. [ABSTRACT FROM AUTHOR]

We use a wave packets approach to analyze the non-trivial time-dependence solution of quantum mechanical systems of a particle in a linear potential. We relate the system of a free particle with that of a particle in a time-dependent linear potential by the use of the de Broglie hypothesis which is one important aspect of the study of the classical-quantum interface. Closed-form analytic results have been obtained as: (i) nonspreading Airy wave packets, (ii) Gaussian wave packets. [ABSTRACT FROM AUTHOR]

This study was conducted at the farm of Ruminants Research Station / Office of Agricultural Research / Ministry of Agriculture / in Abu Ghraib – Baghdad. The experiment was continued for 60 days in addition to the adaptation period for 14 days to study the effect of treating barley straw with fungus (Trichoderma harzianum) (1): on growth and some carcasses characteristics of Awassi lambs. Ten Awassi lambs were used in this experiment average age is 8-9 months and her average weight is 38 ± 0.50 were divided randomly into two equal groups, and then put with individual pens. Lambs were fed individually on a unified concentrate diet (2.5% of body weight). While the roughages offered on ad libitum basis. Each group were fed on roughages (barley straw), as follows: 1. The First group was a control group fed on untreated barley straw. 2. The second group was fed on barley straw treated with Trichoderma harzianum at rate 0.1% (1 kg /tones). At the end of the experiment the lambs were prepared for slaughter and were fasted for a while 14 an hour before the slaughter, with the continued provision of water for it وand immediately before the slaughter, the lambs were weighed to stabilize the live weight before the slaughter, then they were slaughtered, and all weights of the carcass have been taken, and weights of major and minor parts. An analysis of the statistical data using the program of statistical analysis (SAS) and the experience was the use of (CRD). The results showed that different effects among treatments as follow: the fungi treatment (T2) significantly outperformed (P <0.05) in both the efficiency of food conversion, daily gain weight (g / day), total gain weight (g / day) and the total weight increase (kg / day) which amounted to (13.75, 131.55 and 7.37 respectively) compared to the control treatment (T1) Which amounted to (17.29, 94.64 and 5.30 respectively), and indicate a significant increase (P <0.05 ( in the dressing percentage based on live weight of (T2( Compared to the control treatment (T2) that amounted (50,47 and 45.59 respectively), shows a significant increase (P <0.05) in proportion of shoulder piece in (T2) compared to (T1) That amounted (20.40 and 15.26 respectively), while a significant decrease (P <0.05) in the proportion of a loin piece in (T1) compared to (T2), as for the effect of the treatment on the proportion of the minor pieces, shows a significant decrease (P <0.05) in the proportions of fore shank, flank, and the total proportion of the minor pieces in the (T2(, recorded (4. 29و 2. 61 and 26. 44 respectively) compared to (T1) )8. 46, 4. 81 and 30. 42 respectively), That amounted (9. 48 and 7. 70 respectively), while there are no significant differences in the rest of the traits. [ABSTRACT FROM AUTHOR]

We use the Lewis–Riesenfeld theory to determine the exact form of the wavefunctions of a two-dimensional Pauli equation of a charged spin 1/2 particle with time-dependent mass and frequency in the presence of the Aharonov–Bohm effect and a two-dimensional time-dependent harmonic oscillator. We find that the irregular solution at the origin as well as the regular one contributes to the phase of the wavefunction. [ABSTRACT FROM AUTHOR]

Cutaneous leishmaniasis is the most spread clinical form of leishmaniasis in the world. Although it is not fatal, it constitutes a discriminating and morbid disease related to poverty. A better understanding of the epidemiological distribution of the causative agents of CL is of high importance for both diagnosis and treatment processes, and for control and surveillance programs. In this frame, we developed a toolbox named Leisionia dedicated to the collection, storage, curation and analysis of clinical and epidemiological data related to cutaneous leishmaniasis to be collected by multiple partners from different countries and hospitals from the MENA region. Leisionia includes a database, a user-friendly web-based application and a set of statistical analysis tools for real-time processing of data. The database was implemented using MySQL. It permits the collection of: (i) anonymous personal (demographic) data of the patient, (ii) information related to the clinical status of the patient, (iii) epidemiological information including travel and residency history, (iv) the history of previous treatments and/or diagnosis of the lesions, (v) diagnosis results from different molecular techniques permitting the identification of the Leishmania species causing the disease, amongst other features. The database is connected to a user-friendly interface developed using R under Shiny Dashboard environment. The application has the advantage of offering a real-time analysis tool including descriptive statistics, linear regression, ANOVA, Chi-2 test and Multiple Correspondence Analysis (MCA). All graphical outputs can be downloaded with respect to publish-quality standards. The application performances and stability have been tested using simulated data. Leisionia is now ready to be hosted on a web server, to allow the different partners from different countries to enter visualize and analyze the data being available and validated by the data manager. More than 300 clinical samples and their related data are under processing for a first use of the application on field-collected data. Leisionia is amongst the first web applications dedicated to cutaneous leishmaniasis. It can also get expanded to enroll data on visceral leishmaniasis, offering a tool for integrated studies on the epidemiology of leishmaniasis in the MENA region and other endemic countries. [ABSTRACT FROM AUTHOR]