Proptosis of the eye: a potential form of Madelung’s disease

Madelung’s disease is a rare disorder characterised by excessive and symmetrical deposits of adipose tissue, typically in the cervicofacial region. Alcohol is a known cause of the condition, however, there are reports that this condition is genetically inherited. Lipomatosis of the orbit has been described in the alcoholic Madelung’s disease, however, in our case report, we believe this is the first reported instance of proptosis caused by the genetic form of the condition. We present a 69-year-old woman, with a medical history of genetic Madelung’s disease, who presented with bilateral proptosis worse in her right eye. Her ocular examination was normal apart from exophthalmometry, showing bilateral proptosis. This was confirmed by an MRI, which further showed intraorbital fat deposition bilaterally. Due to the stability of her condition, no treatment was deemed necessary. We highlight the importance of monitoring for progressive optic nerve compromise and liposarcomatous malignant transformation.

Context and Phase Dependent Effects of Delta transcranial Alternating Current Stimulation on Dynamic Attending

Attention requires the allocation of limited resources to properly interpret our environment, making it ultimately unsustainable. Dynamic Attending Theory suggests that, in order to realistically maintain vigilance to our surroundings, attention likely fluctuates between high and low energetic states, such that information can be processed more quickly and accurately during attentional peaks and vice versa. Additionally, prior studies have suggested that the phase of delta oscillations (1-4 Hz) are critically involved in the entrainment of attention. We investigated the physiological and behavioral entrainment of attention and the role that delta phase plays to moderate the benefits of this attending. Participants (N=28) passively listened to a background auditory rhythm and were required to complete a visual discrimination task while undergoing 2 Hz transcranial alternating current stimulation (tACS). The task involved identifying an image, either upright or inverted, presented either on or before the final beat, while receiving delta stimulation that was either aligned or unaligned with image presentation. As expected, reaction times (RTs) were faster for on-beat than off-beat stimuli, and for upright images than inverted. Crucially, tACS phase-aligned with the beat led to faster RTs over out-of-phase stimulation, but only for upright images; remarkably, this pattern was reversed for inverted images presented on-beat, with slower RTs for inverted stimuli during in-phase tACS. These results suggest that the effects of delta tACS are both phase and context dependent, and mediate a potential form of speed-accuracy tradeoff in the allocation of attentional resources during rhythmic entrainment.

Multiple Lump Novel and Accurate Analytical and Numerical Solutions of the Three-Dimensional Potential Yu–Toda–Sasa–Fukuyama Equation

The accuracy of novel lump solutions of the potential form of the three–dimensional potential Yu–Toda–Sasa–Fukuyama (3-Dp-YTSF) equation is investigated. These solutions are obtained by employing the extended simplest equation (ESE) and modified Kudryashov (MKud) schemes to explore its lump and breather wave solutions that characterizes the dynamics of solitons and nonlinear waves in weakly dispersive media, plasma physics, and fluid dynamics. The accuracy of the obtained analytical solutions is investigated through the perspective of numerical and semi-analytical strategies (septic B-spline (SBS) and variational iteration (VI) techniques). Additionally, matching the analytical and numerical solutions is represented along with some distinct types of sketches. The superiority of the MKud is showed as the fourth research paper in our series that has been beginning by Mostafa M. A. Khater and Carlo Cattani with the title “Accuracy of computational schemes”. The functioning of employed schemes appears their effectual and ability to apply to different nonlinear evolution equations.

Cheilocostus speciosus (crepe ginger).

Cheilocostus speciosus is one of the most common species of Costaceae in Asia and has been actively introduced as ornamental throughout the tropics. It has repeatedly escaped from cultivation and has become invasive in Cuba, American Samoa, Hawaii, Cook Islands, Micronesia, Fiji, French Polynesia, Palau, and Tonga. In Cuba, this species is listed as an ecosystem transformer. It spreads by seeds and by rhizome division and has the potential form dense thickets, principally in moist habitats.

Cheilocostus speciosus (crepe ginger).

Cheilocostus speciosus is one of the most common species of Costaceae in Asia and has been actively introduced as ornamental throughout the tropics. It has repeatedly escaped from cultivation and has become invasive in Cuba, American Samoa, Hawaii, Cook Islands, Micronesia, Fiji, French Polynesia, Palau, and Tonga. In Cuba, this species is listed as an ecosystem transformer. It spreads by seeds and by rhizome division and has the potential form dense thickets, principally in moist habitats.

Previously undiscovered landslide deposits in Harrison Lake, British Columbia, Canada

A bathymetric survey of Harrison Lake in southwest British Columbia revealed deposits of three large landslides on the lake floor. The blocky and flow-like surface morphology of the deposits suggests rapid emplacement from subaerial sources. The multibeam survey, together with a subbottom acoustic survey, allowed us to estimate deposit volumes of 2.4 Mm3, 1.3 Mm3, and 0.2 Mm3 for the Mount Douglas, Mount Breakenridge, and Silver Mountain landslides, respectively. The large volumes and inferred rapid emplacement of the Mount Douglas and Mount Breakenridge landslides suggest they were tsunamigenic. Because people live along the shoreline of Harrison Lake, our discovery and characterization of these landslide deposits and their tsunami-generating potential form an important foundation for further landslide-tsunami hazard analysis in the region.

Multiple invariant solutions of the 3D potential Yu–Toda–Sasa–Fukuyama equation via symmetry technique

This paper studies the potential form of the 3D potential Yu–Toda–Sasa–Fukuyama equation through the perspective of Lie symmetry analysis. This technique combined with symbolic computations does prove that the general Lie operator depends on five parameters and six independent arbitrary functions that are variable in respect to time. The group invariant solutions associated to some 1D subalgebras are systematically construct and they do involve arbitrary functions. When these functions are expressed under several specific forms, the associated wave solutions possess multiple structures. Graphical representations of some particular solutions are as well provided. As far as we know such general solutions are presented here for the first time and do indicate the symmetry method to be applied in order to solve other multidimensional, integrable, or nonintegrable nonlinear dynamical models.

Lie Symmetries and Low-Order Conservation Laws of a Family of Zakharov-Kuznetsov Equations in 2 + 1 Dimensions

In this work, we study a generalised (2+1) equation of the Zakharov–Kuznetsov (ZK)(m,n,k) equation involving three arbitrary functions. From the point of view of the Lie symmetry theory, we have derived all Lie symmetries of this equation depending on the arbitrary functions. Line soliton solutions have also been obtained. Moreover, we study the low-order conservation laws by applying the multiplier method. This family of equations is rich in Lie symmetries and conservation laws. Finally, when the equation is expressed in potential form, it admits a variational structure in the case when two of the arbitrary functions are linear. In addition, the corresponding Hamiltonian formulation is presented.

Nuclear matter distributions of neutron rich 6He, 11Li, 14Be and 17B halo nuclei studied by the Bear–Hodgson potential

The radial wave functions of the Bear–Hodgson potential have been used to study the ground state features such as the proton, neutron and matter densities and the associated rms radii of two neutrons halo 6He, [Formula: see text]Li, [Formula: see text]Be and [Formula: see text]B nuclei. These halo nuclei are treated as a three-body system composed of core and outer two-neutron [Formula: see text]. The radial wave functions of the Bear–Hodgson potential are used to describe the core and halo density distributions. The interaction of core-neutron takes the Bear–Hodgson potential form. The outer two neutrons of 6He and [Formula: see text]Li interact by the realistic interaction REWIL whereas those of [Formula: see text]Be and [Formula: see text]B interact by the realistic interaction of HASP. The obtained results show that this model succeeds in reproducing the neutron halo in these nuclei. From the calculated densities, it is found that 6He, [Formula: see text]Li, [Formula: see text]Be and [Formula: see text]B have a long tail in neutron and matter densities which is consistent with the experimental data. Elastic charge form factors for these halo nuclei are analyzed via the plane wave Born approximation.

Adaptation of the Local Ghanaian Caldron (“Dadesen”) for Drums Shells

The introduction and high patronage of foreign utensils has reduced the demand for the “dadesen” (a traditional aluminium caldron in Ghana). This is seen by this research as threat to the producers. For this reason, the researchers realise the need to diversify the use of the “dadesen” to assure the livelihood of the local artisans who make them and also to save the craft for posterity. This led to a physical analysed of the form which suggested drum shells. This led to a factor analyses of how a drum /shell can be produced from the “dadesen” and subsequently a drum. These were done in consultation with drum carvers and experts from the localities through interviews and observation. Consequently, the researchers arrived at defined means of executing “dadesen” drum shells and subsequently employed the Ghanaian traditional talking drum making process to stretch the animal skin on the metal shell. This led to the production of a pair of talking drums. These drums were thoroughly tried and the sounds were good. It is therefore concluded that the “dadesen” is a potential form for making of drums. This is highly recommended for another genre of drums.