Spectral Properties of Jacobi-like Band Matrices on the Sequence Space ℓp\ell_p

In this paper, the spectral properties of a class of Jacobi-like operators defined over the sequence space $\ell_{p}, (1<p<\infty)$ which has a representation of an infinite band matrix where the entries of each non-zero band form a sequence with two limit points are investigated. The idea of compact perturbation is used to study the spectrum. Several spectral subdivisions are obtained. In addition, a few sufficient conditions on the absence of point spectrum over the essential spectrum are also discussed

In re Harrods Ltd.: The Brussels Convention and the Proper Application of Forum Non Conveniens to Non-Contracting States

Although the doctrine of forum non conveniens is unknown in Continental legal systems, Community law does not prevent English courts from preserving their discretion to stay proceedings, in conflicts involving a defendant domiciliary, in favor of more appropriate courts in a non-Contracting State. Where the provisions of the Brussels Convention do not address a legal question, the answer must be sought in the objectives and scheme of the Convention. The English Court of Appeals in Harrods properly understood that Community law does not require ritualistic reliance on the Convention\u27s jurisdiction conferring provisions in cases involving a defendant domiciled in a Contracting State and the jurisdiction of a court in a non-Contracting State

THE COMPARATIVE EFFECTS OF VRUDDHADARVADI UPANAHA AND WAX THERAPY IN THE PAIN MANAGEMENT OF JANU SANDHIGATAVATA W.S.R. TO OSTEOARTHRITIS OF KNEE JOINT

A clinical trial was conducted to evaluate the efficacy of different treatment modalities in Janu Sandhigatavata. The Lakshanas of Janu Sandhigatavata as per classics are Shotha, Shoola, Prasaranaa kunchanayovedana, and Atopa are like the symptoms of Osteoarthritis of knee joint i.e., pain, swelling, crepitation and joint restriction. 30 patients suffering from Janu Sandhigatavata (single or both knees), who fulfilled the inclusion and exclusion criteria were selected for the study. 30 Patients were randomly allocated equally into two groups, Group A and Group B. Group A patients received Vruddhadarvadi Upanaha sweda for 1 Hour and Group B patients received Wax therapy for 20min, for 7 days. Both the groups received Placebos (capsules filled with rice flour) for 14 days during the follow-up period. The data of both the groups were analysed using Wilcoxon Signed Rank Test and Mann- Whitney U Test. The efficacy was statistically significant in both the Groups as p value &lt;0.001 in most of the symptoms. Upanaha Sweda and Wax therapy, both the treatments shown equal effectiveness in relieving the pain, swelling, joint restriction and difficulty in walking. While comparison between the Groups, Group A i.e. Upanaha group showed marked reduction in symptoms. The final evaluation proved that the efficacy of Group A was moderately significant as compared to Group B

Role of Panchakarma in the management of Carpal Tunnel Syndrome - A Review

Carpal tunnel syndrome is a common condition that causes pain, numbness and tingling in the hand and arm. The condition occurs when one of the major nerves of the hand, the median nerve is squeezed or compressed as it travels through the wrist. In most patients, carpal tunnel syndrome gets worsen over time, so early diagnosis and treatment are important.[1] If CTS (carpal tunnel syndrome) left untreated, symptoms can last a long time and get worsen. Carpal tunnel syndrome cannot be compared directly to any of the disease in Ayurveda. But to some extend we can compare CTS to Jhinjhini Vata described in Chakradatta.[2] And in later stage when CTS is left untreated the pain and numbness radiates from hand to forearm and arm, at that stage we can compared it with Vishwachi (Brachial neuralgia)

Promjene srčanih biomarkera i ublažavanje simptoma trovanja arsenom u bijelih pataka pasmine pekinška patka nakon upotrebe đumbira

Cardiotoxicity is an imperative issue in the assessment of heavy metal consumption and inorganic arsenic (As). These have a cardiotoxic effect which is evaluated by biochemical, and oxidative-antioxidant tests, and by the Nrf2- HO-1 pathway. Dried ginger powder is recognized for its efficient antioxidant activities and as a protector of the cardiovascular system from toxic damage caused by heavy metals. However, the possible function of ginger against As in heart via heme oxygenase-1 (HO-1) and nuclear factor erythroid 2-related factor (Nrf2) is unclear. A total of 120 White Pekin ducks were randomly distributed into groups comprising 24 birds in each. Each group comprised 3 replicates having 8 birds in each replicate. The time period of this study was 90 days. The groups were the control [Group I] whereas groups II to IV were fed a basal diet including arsenic at 28 mg/L. Dried ginger powder as an ameliorative agent was mixed with the basal diet and fed at 0.1, 0.3 and 1 g/kg feed to groups III, IV and V, respectively. In the current experiment, dried ginger powder decreased As-induced reactive oxygen species (ROSs) production, oxidative injury and pathological modifications. In addition, cardiac dysfunction factors, intracellular calcium (Ca2+), As accumulation and cAMP deficiency levels were noticed in ducks; these alternations were attenuated by ginger. Furthermore, ginger significantly altered the down regulation of both HO-1 and Nrf2 gene expressions caused by As. Thus, the proven protective role of ginger against As-induced cardiotoxicity may be a consequence of the maintenance of redox homeostasis, i.e. the Nrf2-HO-1 pathway and by enabling As efflux.Kardiotoksičnost je vrlo važna u procjeni problema koji nastaju konzumacijom teških metala. Anorganski arsen (As) ima kardiotoksičan učinak koji se procjenjuje na temelju biokemijskih, oksidacijsko-antioksidacijskih nalaza te na temelju puta Nrf2-HO-1. Sušeni đumbirov prah poznat je po svojoj učinkovitoj antioksidacijskoj aktivnosti i zaštitnom djelovanju u slučaju intoksikacije kardiovaskularnog sustava teškim metalima. Nejasna je međutim uloga đumbira u odnosu na arsen u srčanom mišiću putem hem-oksigenaze 1 (HO-1) i faktora 2 povezanog s nuklearnim eritroidnim faktorom. Ukupno je 120 bijelih pataka pasmine pekinška patka nasumično podijeljeno u skupine koje su sadržavale po 24 jedinke. U svakoj skupini provedena su 3 ponovljena postupka (replikacije) na po 8 jedinki. Ukupno je vrijeme istraživanja bilo 90 dana. Skupina I bila je kontrolna skupina koja nije primila ni arsen ni đumbir. Pokusnim skupinama od II do V je, uz osnovnu prehranu, u različitim kombinacijama dodavan arsen u dozi od 28mg/L i sušeni đumbirov prah u dozama od 0,1g/kg 0,3g/kg i 1 g/kg. Rezultati su pokazali da je sušeni đumbirov prah smanjio prisutnost reaktivnih vrsta kisika (ROS) uzrokovanu arsenom, oksidacijsko oštećenje i patološke promjene. Osim toga uočene promjene, kao što su su faktori srčane disfunkcije, unutarstanični kalcij (Ca2+), nakupljanje arsena i deficijencija razine cAMP-a, ublažene su đumbirovim prahom. Đumbir je, nadalje, znakovito utjecao na smanjenje genske ekspresije i HO-1 i Nrf2 uzrokovane arsenom. Zaključeno je da bi zaštitna uloga đumbira u slučaju kardiotoksičnosti uzrokovane arsenom mogla biti posljedica održavanja redoks homeostaze, odnosno puta Nrf2-HO-1 i omogućavanja eliminacije arsena

Neural network predictive control of a heat exchanger

International audienceThe study attempts to show that using the neural network predictive control (NNPC) structure for control of thermal processes can lead to energy savings. The advantage of the NNPC is that it is not a linear-model-based strategy and the control input constraints are directly included into the synthesis. In the designed approach, the neural network is used as a nonlinear process model to predict the future behaviour of the controlled process with distributed parameters. The predictive control strategy is used to calculate optimal control inputs. The efficiency of the described control approach is verified by simulation experiments and a tubular heat exchanger is chosen as a controlled process. The control objective is to keep the temperature of the heated outlet stream at a desired value and minimize the energy consumption. The NNPC of the heat exchanger is compared with classical PID control. Comparison of the simulation results obtained using NNPC and those obtained by classical PID control demonstrates the effectiveness and superiority of the NNPC because of smaller consumption of heating medium

The International Natural Product Sciences Taskforce (INPST) and the power of Twitter networking exemplified through #INPST hashtag analysis

Background: The development of digital technologies and the evolution of open innovation approaches have enabled the creation of diverse virtual organizations and enterprises coordinating their activities primarily online. The open innovation platform titled "International Natural Product Sciences Taskforce" (INPST) was established in 2018, to bring together in collaborative environment individuals and organizations interested in natural product scientific research, and to empower their interactions by using digital communication tools. Methods: In this work, we present a general overview of INPST activities and showcase the specific use of Twitter as a powerful networking tool that was used to host a one-week "2021 INPST Twitter Networking Event" (spanning from 31st May 2021 to 6th June 2021) based on the application of the Twitter hashtag #INPST. Results and Conclusion: The use of this hashtag during the networking event period was analyzed with Symplur Signals (https://www.symplur.com/), revealing a total of 6,036 tweets, shared by 686 users, which generated a total of 65,004,773 impressions (views of the respective tweets). This networking event's achieved high visibility and participation rate showcases a convincing example of how this social media platform can be used as a highly effective tool to host virtual Twitter-based international biomedical research events

Ionic liquids at electrified interfaces

Until recently, “room-temperature” (<100–150 °C) liquid-state electrochemistry was mostly electrochemistry of diluted electrolytes(1)–(4) where dissolved salt ions were surrounded by a considerable amount of solvent molecules. Highly concentrated liquid electrolytes were mostly considered in the narrow (albeit important) niche of high-temperature electrochemistry of molten inorganic salts(5-9) and in the even narrower niche of “first-generation” room temperature ionic liquids, RTILs (such as chloro-aluminates and alkylammonium nitrates).(10-14) The situation has changed dramatically in the 2000s after the discovery of new moisture- and temperature-stable RTILs.(15, 16) These days, the “later generation” RTILs attracted wide attention within the electrochemical community.(17-31) Indeed, RTILs, as a class of compounds, possess a unique combination of properties (high charge density, electrochemical stability, low/negligible volatility, tunable polarity, etc.) that make them very attractive substances from fundamental and application points of view.(32-38) Most importantly, they can mix with each other in “cocktails” of one’s choice to acquire the desired properties (e.g., wider temperature range of the liquid phase(39, 40)) and can serve as almost “universal” solvents.(37, 41, 42) It is worth noting here one of the advantages of RTILs as compared to their high-temperature molten salt (HTMS)(43) “sister-systems”.(44) In RTILs the dissolved molecules are not imbedded in a harsh high temperature environment which could be destructive for many classes of fragile (organic) molecules

Effect of Nalbuphine as an adjuvant to 0.5% Bupivacaine for supraclavicular brachial plexus block

BACKGROUND: Brachial plexus block is most common regional anaesthetic technique for upper arm and hand surgeries. Nalbuphine is a derivative of hydroxymorphine with mixed agonist, antagonist properties and is a strong analgesic. The present study was carried out to evaluate the effect of Nalbuphine added to 0.5% Bupivacaine for supraclavicular brachial plexus block. MATERIALS AND METHODS: 60 adults patients posted for forearm and hand surgeries under supraclavicular brachial plexus block were divided into two equal groups in a randomised double blind manner. Gr I ( n=30) received 29 ml 0.5% Bupivacaine + 10 mg Nalbuphine hydrochloride ( 1 ml). Gr II received 29 ml of 0.5% Bupivacaine + 1 ml Normal Saline (0.9%). Study drug was administered in supraclavicular brachial plexus block by B. Braun Stimuplex HNS12 peripheral nerve stimulator. Following parameters were studied. Onset time, duration of sensory and motor block, time to first analgesia use. Post operative analgesia was evaluated by visual analog scale&nbsp; ( VAS) score, hemodynamic changes and side effects were recorded after block. RESULTS : Onset time was comparable in both the groups.&nbsp