No abstract

Two field experiments were carried out in Alexandria and El-Beheira governorates in Egypt to evaluate the biological efficacy of a ready mix herbicide Paradigm (Halauxifen-methyl + Florasulam) with application rate 21 gm/fed combined with Pyroxsulam (160 ml/fed), Pinoxaden (550 ml/fed), Clodinafop-propargyl (140 gm/fed) and Diclofop-methyl (1000 ml/fed) compared to Pyroxsulam (Pallas), Atlantis (Iodosulfuran + Mesosulfuron) and unweededcheck on winter wheat in 2014, herbicides were applied at tillering stage in both regions. Paradigm with its combinations with grassy weed herbicides showed excellent control onMedicagohispida, Beta vulgaris, Malvaprviflora, Anagallisarvensis, Coronopussquamatus, Sonchusoleraceusand Brassica nigra .On the other hand, the best efficacy on grassy weed mass, visual weed estimation and percentage of grassy seed heads were obtained from Paradigm combinations with Pyroxsulam and Pinoxaden only at tillering stage in Alexandria region, while its combination with Clodinafop-propargyl and Diclofop-methyl did not improve grassy herbicidal activity in both trials compared to standard herbicides, Generally the combinations showed good control for broad weed leaves in both locations, while in grassy leaves it showed better control in Alexandria than in El-Beheira governorate.

The nonrelativistic treatment of the Varshni–Shukla potential (V–SP) in the presence of magnetic and Aharanov–Bohm fields is carried out using the asymptotic iteration method (AIM). The energy equation and wave function are derived analytically. The energy levels are summed to obtain the partition function, which is employed to derive the expressions for the thermomagnetic properties of the V–SP. These properties are analyzed extensively using graphical representations. It is observed that in the various settings of the analysis, the system shows a diamagnetic characteristic, and the specific heat capacity behavior agrees with the recognized Dulong–Petit law, although some slight anomaly is observed. This irregular behavior could be attributed to a Schottky anomaly. Our findings will be valuable in a variety of fields of physics, including chemical, molecular and condensed matter physics, where our derived models could be applied to study other diatomic molecules and quantum dots, respectively.

No abstract

The thermal conductivity of LiKSO 4 ferroelastic crystals was measured alon$ the three principal crystallographic axes in the vicinity of its high temperature phase transition at 750 K. The data showed an anomalous behaviour in the temperature dependence of the thermal conductivity in the transition region of width of about 25 degrees. The anomaly in the phonon contribution to the conductivity was referred to the freezing-in of either optic-and/or acousticmodes of lattice vibrations in the near vicinity of the phase transition. The results aredi~ussed in terms of scattering mechanisms of energy carders.Lithium potassium sulphate, LiKSO4, crystal is pyroelectric [1] with a hexagonal symmetry at room temperature. The system corresponds to the space group P6 a and there are two molecules in the hexagonal unit cell. Extensive studies on the physical properties of LiKSO 4 in different temperature ranges have been reported [2][3][4][5].These studies have shown that the crystal undergoes several phase transitions. In the high temperature region, the crystal exhibits a structural phase transition from hexagonal to orthorhombic system [7] at about 705 K. The next and the last high temperature phase transition, probably back to hexagonal system, was observed near 940 K [2]. These high temperature phase transitions were so far the subject of several experlmental]nvestigations [4, 8-