Resection of a large benign pharyngo-oesophageal submucous mesenchymoma via laterocervical approach

2003 ◽  
Vol 117 (3) ◽  
pp. 219-221
Author(s):  
Lisi Liu ◽  
Shaoxian Hu ◽  
Hongtao Zhen ◽  
Yanling Tao ◽  
Yingxiong Tang ◽  
...  

Two rare cases of benign submucosal pharyngo-oesophageal mesenchymoma are presented in this paper. One patient was treated by tumour removal via a combined thoracic and laterocervical approach and the other by resection through a laterocervical approach. The paper discusses the pathology and diagnosis of benign mesenchymomas. The authors suggest that for large tumours located in the pharynx and extending down the oesophagus without adhesion to the oesophageal wall, the laterocervical approach can avoid complications associated with the thoracic approach. The new technique caused less tissue damage and provided a quicker recovery and shorter hospitalization.

2010 ◽  
Vol 27 (8) ◽  
pp. 1318-1330 ◽  
Author(s):  
Gary A. Morris ◽  
Walter D. Komhyr ◽  
Jun Hirokawa ◽  
James Flynn ◽  
Barry Lefer ◽  
...  

Abstract This paper reports on the development of a new technique for inexpensive measurements of SO2 profiles using a modified dual-ozonesonde instrument payload. The presence of SO2 interferes with the standard electrochemical cell (ECC) ozonesonde measurement, resulting in −1 molecule of O3 reported for each molecule of SO2 present (provided [O3] > [SO2]). In laboratory tests, an SO2 filter made with CrO3 placed on the inlet side of the sonde removes nearly 100% of the SO2 present for concentrations up to 60 ppbv and remained effective after exposure to 2.8 × 1016 molecules of SO2 [equivalent to a column ∼150 DU (1 DU = 2.69 × 1020 molecules m−2)]. Flying two ECC instruments on the same payload with one filtered and the other unfiltered yields SO2 profiles, inferred by subtraction. Laboratory tests and field experience suggest an SO2 detection limit of ∼3 pbb with profiles valid from the surface to the ozonopause [i.e., ∼(8–10 km)]. Two example profiles demonstrate the success of this technique for both volcanic and industrial plumes.


2021 ◽  
Vol 7 (2) ◽  
pp. 205511692110254
Author(s):  
Ivona Orgonikova ◽  
Lorenzo Mari ◽  
Chiara Giannasi ◽  
Martí Pumarola i Batlle ◽  
Sebastien Behr ◽  
...  

Case summary In this report we describe the occurrence of intracranial meningioma in two adult cats from the same litter. The location of the meningioma varied: one tumour was at the level of the brainstem, and the other was affecting the temporal and piriform lobes. The cat with the brainstem meningioma was treated with radiotherapy and the littermate had a rostrotentorial craniectomy for tumour removal. Both cats had a histopathological diagnosis of grade I meningioma of a predominantly fibrous subtype. Relevance and novel information Cases of familial meningioma in cats have not previously been described in the veterinary literature. However, familial meningioma is well described in humans and it is possible that cases are underestimated in animals. We discuss the possible genetic background and other causes, as well as challenges we may face in veterinary medicine in identifying these associations.


1997 ◽  
Vol 77 (4) ◽  
pp. 577-583 ◽  
Author(s):  
K. S. Schwartzkopf-Genswein ◽  
J. M. Stookey

Infrared thermography was used to compare differences in extent and duration of inflammation observed on hot-iron and freeze brand sites as an indicator of tissue damage and the associated discomfort to the animals. Thirty beef heifers of mixed breed were assigned to either hot-iron (H) or freeze (F) branding treatments according to a predetermined randomized branding order. Ten animals were branded each day over a 3-d period. On the day prior to branding, animals were clipped to expose two patches of skin; one to be used for the branding treatment and the other for a control. Thermographic images of control and treatment sites were made at 0.08 h (5 min) prior to branding, immediately after the brand was completed (0 h), as well as 0.08, 2, 4, 8, 12, 24, 48, 72, 96, 120, 144 and 168 h after branding. Control site temperatures were subtracted from treatment site temperatures for each individual animal. Both F and H brand sites were consistently warmer (1.9 ± 0.3 and 1.6 ± 0.3 °C, respectively) than their corresponding control sites between 2 and 168 h after branding. Treatment differences were obtained at 0, 0.08, 2, 8, and 144 h after branding (P < 0.001, 0.05, 0.005, 0.001, and 0.01, respectively). Freeze brand sites were warmer at 2 and 8 h after branding while H sites were warmer at 144 h after branding. The thermographic evaluation of hot-iron and freeze brand sites indicated that both methods caused tissue damage. However, H brand sites remained significantly warmer than F sites at 168 h after branding. In addition, H sites were significantly warmer than control sites while F sites were not warmer than control sites at 168 h. The prolonged inflammatory response observed in H animals indicates that more tissue damage and perhaps more discomfort are associated with H branding. Key words: Thermography, branding, cattle, animal welfare, pain.


2005 ◽  
Vol 58 (1) ◽  
pp. 139-207 ◽  
Author(s):  
PETER J. SCHMELZ

Abstract This article examines the compositional history and early reception of Soviet composer Andrey Volkonsky's two earliest and most important serial compositions, Musica Stricta and Suite of Mirrors (Syuita zerkal). These two works spurred on the formation of an unofficial music culture in the Soviet Union during the Thaw of the late 1950s and 1960s. Volkonsky (b. 1933) was the first and initially the most visible of a group of young Soviets known by officialdom as the “young composers” (“molodïïye kompozitorïï”). These “young composers”—among them Sofia Gubaidulina, Alfred Schnittke, Arvo Pärt, and Edison Denisov—came of age in the years following Stalin's death in 1953. Their compositions reflected their attempts to “catch up” with the Western avant-garde following decades of musical development that had been denied them under Stalin. The first “new” technique these composers adopted was serialism, and Volkonsky's early compositions illustrate the specifically Soviet approach to the method and demonstrate the meanings it held for Soviet officials and Soviet audiences. Volkonsky's early works also force a broadening of current interpretations of postwar European and American serialism. Much of the information in the article stems from personal interviews with Volkonsky and the other leading composers and performers of the Thaw, as well as archival research conducted in Russia.


2021 ◽  
Vol 9 ◽  
Author(s):  
Marcel Berger ◽  
Daniel Henning ◽  
Michael C. Hout

When it comes to experiencing pain, most people will agree that it is an uncomfortable sensation that we would rather avoid. Pain can vary in intensity—ranging from the mild sensation of stubbing your toe to the intense pain of a broken bone—and we generally think of it as a bad thing. But pain can be thought of in two ways: sometimes it is a warning signal that something is wrong with our bodies, but other times it is benign, meaning it is not an indication that something is necessarily wrong. Warning-signal pain occurs when certain areas of your body get hurt or experience tissue damage, like when a sibling accidentally closes the car door on your fingers. Benign pain, on the other hand, is the type of pain you feel during intense physical exercise, and as you will come to see, is not always something you need to avoid!


2019 ◽  
Vol 8 (3) ◽  
pp. 6724-6727

In a present day a necessity for fair allocation of transmission loss in a deregulated electricity market. This paper presents modifiedZbus loss allocation method to calculate the allocation of transmission loss loss . The procedure depends on straightforward circuit laws and doesn't include any suppositions. results obtained for IEEE 14 Bus system are analysed with the other present methods


Author(s):  
G. LAKSHMI PRANEETHA ◽  
P. HAREESH

In this paper a new technique is proposed based on the comparison between Conventional Transistorized Flip-flop and Data transition Look ahead D flip flop here we are checking the working of DLDFF and the conventional D Flip-flop after that we are analyzing the characteristic comparison using power & area constraints after that we are proposing a Negative Edge triggered flip-flop named as Switching Transistor based D Flip-Flop(STDFF) with reduced number of transistors which will reduce the overall power area as well as delay. The simulations are done using Microwind & DSCH analysis software tools and the result between all those types are listed below. Our proposed system simulations are done under 50nm technology and the results are tabulated below. In that our proposed system is showing better output than the other flip-flops compared here.


2001 ◽  
Vol 56 (4) ◽  
pp. 115-118 ◽  
Author(s):  
Fabio Ikeda ◽  
Maurício Simões Abrão ◽  
Sérgio Podgaec ◽  
Alexandre Pupo Nogueira ◽  
Rosa Maria Neme ◽  
...  

Microlaparoscopy represents the development of endoscopic surgery towards a minimally invasive surgical procedure. The advantages include fewer surgical complications, faster return to daily activities, more comfortable postoperative recovery, and satisfactory aesthetic results. The possibility of performing surgery under sedation may result in shorter hospitalization, lower hospital costs, and easier anesthetic procedures. The authors report their preliminary experience with the use of microlaparoscopy, using optics and 2mm instruments, as well as a review of the literature since the introduction of this new technique. The report of these 16 cases demonstrates that microlaparoscopy is a feasible technique with satisfactory results. On the other hand, this new technique requires precise indications and a training period for the development of the skills necessary for performing these surgeries.


1963 ◽  
Vol 204 (1) ◽  
pp. 42-44 ◽  
Author(s):  
J. M. McKenzie ◽  
D. R. Celander ◽  
M. M. Guest

A semimicro method was developed and used to determine the levels of fibrinogen in two groups of dogs. One group was obtained from the dog pound and their plasma fibrinogen levels were determined immediately. The other group was kept in the departmental animal quarters under conditions essentially free of environmental stress for 45 days before determining the plasma fibrinogen concentration. The concentration of fibrinogen was found to be significantly lower in the group which was housed in the departmental quarters. However, when representative individuals from the latter group were subjected to intermittent electrical stimuli of low intensity for periods of 3–11 days the plasma fibrinogen increased significantly. It thus appears that the concentration of plasma fibrinogen is directly related to the degree of stress to which animals have been subjected and the stress initiating the response need not cause overt tissue damage.


Metals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 389 ◽  
Author(s):  
Suzan Meijs ◽  
Kristian Rechendorff ◽  
Søren Sørensen ◽  
Nico Rijkhoff

(1) Background: Titanium nitride (TiN) electrodes have been used for implantable stimulation and sensing electrodes for decades. Nevertheless, there still is a discrepancy between the in vitro and in vivo determined safe charge injection limits. This study investigated the consequences of pulsing implanted electrodes beyond the in vivo safe charge injection limits. (2) Methods: The electrodes were implanted for a month and then pulsed at 20 mA and 50 mA and 200 Hz and 400 Hz. Afterwards, the electrodes were investigated using electrochemical and analytical methods to evaluate whether electrode degradation had occurred. (3) Results: Electrochemical tests showed that electrodes that pulsed at 20 mA and 200 Hz (lowest electrical dose) had a significantly lower charge injection capacity and higher impedance than the other used and unused electrodes. (4) Conclusions: The electrodes pulsed at the lowest electrical dose, for which no tissue damage was found, appeared to have degraded. Electrodes pulsed at higher electrical doses for which tissue damage did occur, on the other hand, show no significant degradation in electrochemical tests compared to unused implanted and not implanted electrodes. It is thus clear that the tissue surrounding the electrode has an influence on the charge injection properties of the electrodes and vice versa.


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