Evaluating the Efficiency, Capabilities, and Scalability of a LoRaWAN Network in a Fenceless Grazing Implementation

LoRaWAN networks are becoming more popular, and it is becoming common for developers to look at solutions utilizing Internet of Things concepts. In this paper, I introduce a Fenceless Grazing System utilizing the LoRaWAN network stack and discuss the limitations of this theorized network to better understand the scalability prior to production. The goal of this system is to define ”invisible fences” and prevent livestock from crossing these boundaries. Using smart collars on animals, ranchers are able to define boundaries and herd animals from the comfort of their home. This system utilizes the LoRaWAN network stack, and this technology is further discussed. Hardware is introduced, and the capabilities of this system and greater LoRaWAN networks in general is evaluated. Utilizing NS-3, various simulations were run to evaluate the packet loss across the entire network in an effort to determine the constraints of the system. Finally, these results are presented and a theorized maximum distance is evaluated and tested with the hardware on hand

Clinical comparison of the American Optical Non-contrast Tonometer and the Digilab Pneumatonometer with the Goldmann Applanation Tanometer

Clinical comparison of the American Optical Non-contrast Tonometer and the Digilab Pneumatonometer with the Goldmann Applanation Tanomete

Synthesis and activity of a novel inhibitor of nonsense-mediated mRNA decay

During efforts to prepare the known compound , a new tetracyclic compound, called , was prepared in six steps. This compound was found to have good activity as an inhibitor of nonsense-mediated mRNA decay

Molecular and functional diversity at synapses of individual neurons in vitro.

We have quantified activity-dependent uptake of the fluorescent dye FM1-43 in combination with immunocytochemistry for synaptic vesicle-associated proteins (SVPs) at individual synapses in primary cultures of rat cortical neurons. We show that expression of synaptic proteins is highly variable and that the levels of synaptophysin (p38), synapsin I and sv2, but not synapsin II, correlate with the extent of FM1-43 labelling at synapses. The data indicate that SVP levels affect the uptake of FM1-43 with different efficacy (p38 > synapsin I > sv2 or synapsin II). We also found that the relative levels of SVPs vary at individual boutons of single neurons grown in isolation, which indicates that differential regulation of specific SVPs may contribute to the selective modulation of activity at synapses of the same neuron