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Effect of Milk Processed Arnebiae Radix on Body Temperature of Fever Rats
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作者 Jinwen LIU Xiaohong MA +4 位作者 Huayang ZHAO Liga BAI Liming BAO Qishisan WU Yongji LI 《Medicinal Plant》 2024年第4期89-91,共3页
[Objectives]To investigate the synergistic effect of Arnebiae Radix after processing.[Methods]The effects of raw Arnebiae Radix and milk processed Arnebiae Radix on hypothermia in yeast-induced febrile rats were compa... [Objectives]To investigate the synergistic effect of Arnebiae Radix after processing.[Methods]The effects of raw Arnebiae Radix and milk processed Arnebiae Radix on hypothermia in yeast-induced febrile rats were compared.[Results]The processed and unprocessed Arnebiae Radix at high,medium and low doses all had a certain effect on inhibiting the rise of body temperature in rats.The high dose unprocessed group,the medium dose processed group and the high dose processed group had the best inhibitory effect on body temperature,the low dose processed group could delay the fever time,and the low dose unprocessed group had poor inhibitory effect on fever.[Conclusions]The prepared Arnebiae Radix has enhanced drug effect,and milk processed Arnebiae Radix can be used to replace common Arnebiae Radix to reduce the dosage of Arnebiae Radix and save Arnebiae Radix resources. 展开更多
关键词 Arnebiae Radix Fever model body temperature
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Effects of constant light and dark conditions on the locomotor activity,body mass,and body temperature rhythms of Eurasian Tree Sparrows(Passer montanus)
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作者 Lirong Zuo Ibrahim MAhmad +3 位作者 Yuanyuan Liu Limin Wang Shu Fang Dongming Li 《Avian Research》 SCIE CSCD 2023年第3期435-442,共8页
Light is an essential environmental cue influencing the endogenous circadian clocks that regulate behavioral and physiological processes in animals.Despite extensive research on the circadian rhythms of avian behavior... Light is an essential environmental cue influencing the endogenous circadian clocks that regulate behavioral and physiological processes in animals.Despite extensive research on the circadian rhythms of avian behavior and physiology,the mechanisms by which they adapt and adjust to abnormal photoperiod conditions,such as artificial light,have yet to be fully elucidated.Here,the circadian rhythms of the body mass,activity,and core and peripheral body temperatures of the Eurasian Tree Sparrow(Passer montanus,ETS)-a diurnal passerine-were examined under three different lighting conditions:constant light(LL),constant darkness(DD),and normal light-dark cycles(LD).Our results showed that the activity,body mass,core,tarsometatarsus,and eye temperatures of the ETSs varied significantly with treatment,time,and the interaction between treatment and time;however,there was no significant change in body mass in response to the interaction between time and treatment.Under LD conditions,the ETSs exhibited significant circadian rhythms in activity and core,tarsometatarsus,and eye temperatures.Under LL conditions,only the core temperature exhibited significant rhythmicity.Under DD conditions,there were no significant circadian rhythms in activity,body mass,and eye temperature;however,the core and tarsometatarsus temperatures remained rhythmic.Our results indicate that the core body temperature rhythm of ETS is endogenous and can be maintained under abnormal photoperiods.In contrast,the activity and body surface temperature,uncoupled from the core body temperature under abnormal photoperiod conditions,strongly depend on light.These results differ from those of other diurnal avian species,suggesting a unique coping mechanism of ETS in response to an abnormal photoperiod. 展开更多
关键词 Eurasian Tree Sparrow ACTIVITY body mass body temperature Circadian rhythm
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EFFECTS OF BODY TEMPERATURE ON ELECTROCARDIOGRAMS OF LIZARD Eremias multiocellata * 被引量:2
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作者 李仁德 陈强 刘晒发 《Zoological Research》 CAS CSCD 1998年第4期269-276,共8页
Electrocardiograms (ECG) of Eremias multiocellata were studied at 5-35℃ in body temperature. Electrocardiogram wave intervals (R-R,P-R,QRS,T-P,and R-T) shortened while heart rate increased with the increasing of bod... Electrocardiograms (ECG) of Eremias multiocellata were studied at 5-35℃ in body temperature. Electrocardiogram wave intervals (R-R,P-R,QRS,T-P,and R-T) shortened while heart rate increased with the increasing of body temperature. The average heart rate was 14.6/min at 5℃,whereas it was 201/min at 35℃. The duration of wave intervals of ECG and the heart rate were related significantly to the body temperature (P<0.001). Among the components of a cardiac cycle the cardiac rest period (TP intervals) and the atria-ventricular conduction time (PR interval) were affected mostly by body temperature. In the other hand the ventricular depolarization and repolarization (QRS and R-T intervals) were relatively less affected by the body temperature. The increasing of heart rate with body temperature was mainly caused by the shortening of ECG wave intervals,and the T-P interval (the cardiac rest period) was shortened more noticeably than other intervals. 展开更多
关键词 Eremias multiocellata ELECTROCARDIOGRAM body temperature
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Change in the body temperature of healthy term infant over the first 72 hours of life 被引量:5
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作者 李萌霞 孙革 NEUBAUERHenning 《Journal of Zhejiang University Science》 CSCD 2004年第4期486-493,共8页
Objective: To determine the range of body temperature in a group of healthy Chinese term neonates over the first 72 hours of life and to assess the influence of body weight, gestational age and route of delivery. Meth... Objective: To determine the range of body temperature in a group of healthy Chinese term neonates over the first 72 hours of life and to assess the influence of body weight, gestational age and route of delivery. Method: All 200 consecutive cases of neonates delivered at our hospital from March to August 2001 were included in this retrospective study. Temperatures were measured immediately after delivery, after 30 minutes, 1 hour, 2 hours, 8 hours and 15 hours and on the 2nd and 3rd day. Axillary temperatures ranging from 36.5 篊 to 37 篊 were regarded as normal. No cases of maternal fever or systemic infection of the newborns were discovered. All infants were discharged in good general condition. Results: The mean rectal temperature at birth was 37.19 篊. The lowest average temperature was reached at 1 hour after delivery (36.54 篊) with a significant difference between natural delivery (36.48 篊) and section (36.59 篊) (P<0.05). Temperature subsequently rose to 36.70 篊 at 8 hours and 36.78 篊 at 15 hours (P<0.05). Hypothermia was seen in 51.8% and hypothermia in 42.5% of the patients. On the 3rd day after delivery, 96% of all temperatures were in the normal range. A significant relation was found between hypothermia and both low birth weight (P<0.001) and low gestational age (P<0.05). Conclusion: The ref-erence range presently used did not include all physiological temperatures in the first 72 hours of life. Considering other factors, such as birth weight, route of delivery, gestational age and body temperature on the 2nd and 3rd day of life, may help to correctly assess the significance of temperatures beyond the reference range. 展开更多
关键词 body temperature Term infant Rectal temperature Axillary temperature
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Prediction of thermal environment via revision of PMV index with body temperature 被引量:1
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作者 茅艳 刘加平 洼田英树 《Journal of Pharmaceutical Analysis》 SCIE CAS 2007年第1期60-62,80,共4页
PMV(Predicted Mean Vote) is a widely used index for evaluating the thermal environment.However,few studies have been conducted to take physiological values directly as evaluating indices.This paper assumes a linear re... PMV(Predicted Mean Vote) is a widely used index for evaluating the thermal environment.However,few studies have been conducted to take physiological values directly as evaluating indices.This paper assumes a linear relation between body temperature and both sweating rate and heat produced by shivering,and introduces the linear relation into the human heat balance equation to revise the classic PMV.And the assumption of linear relation is subsequently proved.The revised PMV possesses the same characteristic of dependent heat load as that of the classic one,and moreover it is convenient to be calculated. 展开更多
关键词 thermal environment body temperature physiological value PMV
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A Specific Pattern in the Basal Body Temperature Chart during the First Week of Pregnancy May Warn of a Miscarriage Crisis 被引量:1
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作者 Mayumi Watanabe Yoshinobu Nakamura +1 位作者 Chikako Tomiyama Toru Abo 《Health》 CAS 2016年第8期723-729,共7页
We studied the efficiency of acupuncture for patients who were unable to give birth though they had experienced conventional infertility treatment for more than 2 years by medical specialists. We then investigated cha... We studied the efficiency of acupuncture for patients who were unable to give birth though they had experienced conventional infertility treatment for more than 2 years by medical specialists. We then investigated characteristics of difficult pregnancy cases with measurement of body temperature and observation of basal body temperature (BBT) charts. Thirty-three patients had acupuncture every week for more than 2 years and 17 of them delivered. At the same time, their cutaneous body temperature was measured at five locations. Moreover, patients and acupuncturists had a weekly discussion of the patient’s BBT chart. The delivery group showed more balanced and higher cutaneous body temperatures than the miscarriage and no pregnancy groups. The delivery group showed a smooth increase in the BBT chart while the miscarriage group showed a specific pattern in shifting temperatures from low to high zones. Acupuncture might suppress excess sympathetic dominance, which induced hyperthermia as well as interruption of pregnancy. Additionally, weekly discussion and medical advice could help patients. However, further study of males, healthy women, or larger, comparative studies exploring the social and cultural background of other countries were needed to add support to these factors. 展开更多
关键词 Basal body temperature (BBT) Chart MISCARRIAGE Kyusaku Ogino Acupuncture Medical Advice
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Influence of olfactory ensheathing cell transplantation on body temperature of patients with old spinal cord injury
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作者 Chao Liu Zuncheng Zheng Rui Gao Kun Zhang Liqing Zhang Lin Zhang Lei Zhang Shugang Wei Naifeng Kuang Yanjun Song 《Neural Regeneration Research》 SCIE CAS CSCD 2008年第7期805-808,共4页
BACKGROUND: Olfactory ensheathing cell transplantation may transiently raise body temperature in some patients with old spinal cord injury. OBJECTIVE: To analyze the influence of olfactory ensheathing cell transplan... BACKGROUND: Olfactory ensheathing cell transplantation may transiently raise body temperature in some patients with old spinal cord injury. OBJECTIVE: To analyze the influence of olfactory ensheathing cell transplantation on body temperature changes and neurological functional recovery in patients with old spinal cord injury. DESIGN, TIME AND SETTING: A non-randomized self-controlled study, which was performed in the wards of the Department of Surgery, Taian Disabled Soldier's Hospital of Shandong Province, between June 2004 and July 2007. PARTICIPANTS: 119 inpatients with old spinal cord injury were selected for this study, including 110 males and 9 females, aged 5-58 years. METHODS: The olfactory bulb of an aborted fetus was digested into a single-cell suspension of olfactory ensheathing cells, which were then cultured and purified for 7-10 days, and once again made into a single-cell suspension. The olfactory ensheathing cell suspension was then transplanted in the juncture of the normal spinal cord and the abnormal spinal cord under surgical microscopy, with 1 × 10^6 cells per target point, with 2-5 target points in total. According to changes in postoperative temperature, 119 patients were divided into three groups: body temperature (T) ≤ 38.0 ℃ (n = 40), 38.0 ℃ 〈 T ≤ 39.0 ℃ (n = 67), T 〉 39.0℃ (n = 12). In particular, T 〉 38℃ (n = 79) patients were divided into two subgroups according to duration of fever: ≤3 days (n = 61) and ≥ 4 days (n = 18). MAIN OUTCOME MEASURES: Neurological function was evaluated by the American Spinal Cord Injury (ASIA) scale set by American Spinal Cord Injury Academy in 2000 one day prior to transplantation and one or two months after transplantation. RESULTS: 119 patients were included in the final analysis, without any loss. Following olfactory ensheathing cell transplantation, body temperatures changed as follows: T ≤ 38.0 ℃ (n = 40, 33.6%), 38.0 ℃ 〈 T ≤ 39.0 ℃ (n = 67, 56.3%), 〉 39.0 ℃ (n = 12, 10.1%). Moreover, among 79 patients (T 〉 38 ℃), the febrile time of 61 cases (77%) was ≤ 3 days, and that of 18 cases (23%) ≥ 4 days. ASIA scores increased after olfactory ensheathing cell transplantation (P 〈 0.05-0.01). CONCLUSION: Moderate febricity frequently occurred in patients that received olfactory ensheathing cell transplantation, and febrile time lasted for more than 3 days. Additionally, olfactory ensheathing cell transplantation can remarkably improve neurological functional recovery. 展开更多
关键词 olfactory ensheathing cells cell transplantation functional evaluation body temperature
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Effect of successive irrigation of subarachnoid cavity on body temperature and cerebrospinal fluid-related index in suppurative meningitis model dogs
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作者 Yong Liu Guohou He +2 位作者 Yuanyuan Wang Xueqiang Chen Qibin Wang 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第2期108-110,共3页
BACKGROUND: At present, suppurative meningitis is mainly treated through anti-infection with antibiotics, depressing encephalic pressure with mannitol , lowering body temperature with drugs , supporting treatment, et... BACKGROUND: At present, suppurative meningitis is mainly treated through anti-infection with antibiotics, depressing encephalic pressure with mannitol , lowering body temperature with drugs , supporting treatment, etc. However, Jt takes a long course of treatment and has poor therapeutic effect. Successive irrigation of subarachnoid cavity maybe have better effect on suppurative meningitis.OBJECTIVE: We compared the successive irrigation of subbarachnoid cavity with routine therapeutic methods to observe the effect of successive irrigation of subarachnoid cavity on the body temperature, cerebrospinal fluid pressure, the number of white blood cell and the level of protein of suppurative meningitis dogs. DESIGN: A randomized and controlled animal experiment SETTING: Institute of Neuroscience, Taihe Hospital Affiliated to Yunyang Medical College MATERIALS: Totally 17 healthy adult male Beagle dogs, of common grade, weighing 9 to 10 kg, were involved in the experiment, and raised in the 20 ℃ temperature with relative humidity of 50% for 1 week. They were randomized into 3 groups: normal group (n=5), control group (n=5) and irrigation group (n=6). Artificial cerebrospinal fluid was prepared according to the level of glucose and chloride of cerebrospinal fluid of normal dogs, and then it was sterilized with high pressure. METHODS : This experiment was carried out in the experimental animal center of Yunyang Medical College from April to August 2001. ① After the dogs were anesthetized,1 mL fresh staphylococcus aureus liquid [(1.5-1.6)× 10^9 L 1] was injected into medullary cistern to establish suppurative meningitis models. ② After models were successfully established, intravenous drip infusion of 1.2 ×10^6 U/(kg.d), muscular injection of sulfadiazine sodium of 100 mg/(kg.d )and intravenous injection of 200 g/L mannitol of 5 g/(kg .time) for 3 times a day were performed in the control group. The irrigation of subarachnoid meningitis was conducted in the irrigation group besides the routine treatments in the control group: Artificial cerebrospinal fluid was successively injected into the epidural catheter in the waist part. The mixtures of artificial cerebrospinal fluid and inflammatory cerebrospinal fluid flowed out incessantly from epidural catheter of medullary cistern. Irrigation was ended 48 hours later. Dogs were routinely raised in the control group. ③ From the first day after being modeled to the 14^th day after treatment, the rectal temperatures were daily measured in the morning, at noon and in the evening respectively, then the mean temperatures were calculated. From the 2^nd day after being modeled to the 14^th day after treatment, puncture at waist was given once, and the cerebrospinal fluid pressure, the number of white blood cells and the level of protein were measured. MAIN OUTCOME MEASURES : The body temperature, cerebrospinal fluid pressure, the number of white blood cells and the level of protein were measured on suppurative meningitis model dogs. RESULTS" Totally 17 Beagle dogs were involved in this study.①The body temperatures of dogs were significantly reduced in the control group and in irrigation group on the 1^st day after treatment and lower than suppurative meningitis model dogs on the 2^nd day after being modeled (P 〈 0.05). The body temperatures were gradually decreased in control group from the 2^nd day after being modeled to the 14^th day after treatment (P 〈 0.01), but were significantly higher than those of dogs in normal group on the 14^th day after treatment (P 〈 0.05). The body temperatures of dogs were gradually decreased in irrigation group on the 2^nd day or 3^rd day after treatment (P 〈 0.01) and then were close to the normal body temperature on the 14^th day after treatment. ②There was the same cerebrospinal fluid pressure in control group as in irrigation group on the 2^nd day after being modeled (P 〉 0.05), but significantly decreased in two groups from the 1s' day or 2^nd day after treatment (P 〈 0.01), and cerebrospinal fluid pressure was close to the normal level in irrigation group. Although the cerebrospinal fluid pressure raised a little on the 3^rd day or 4^th day after treatment in the irrigation group (P〈 0.05), but recovered to the normal level on the 9^th day after treatment again. It decreased slowly in the control group and still was sig- nificantly higher than normal group on the 14^hd day after treatment (P〈 0.01 ). ③No significant difference existed in number of white blood cell and the level of protein between control group and irrigation group on the 2^nd day following modeled. Both of them began to significantly decrease on the 1^st and 2^nd day after treatment (P 〈 0.01 ). Although the number of white blood cell and the level of protein rebounded a little in irrigation group 3 or 4 days after treatment (P〈 0.05), they were gradually decreased and recovered to normal levels on the 13^th day after treatment. The number of white blood cell and the level of protein slowly decreased in the control group compared with irrigation group and were still significantly higher than normal group on the 14^th day (P〈 0.01 ). EONELUSEON : Irrigation of subarachnoid cavity can decrease the body temperature, cerebrospinal fluid pressure, the number of white blood cells and the level of protein at early stage of suppurative meningitis, and the therapeutic effect is better than that of routine treatment. 展开更多
关键词 body Effect of successive irrigation of subarachnoid cavity on body temperature and cerebrospinal fluid-related index in suppurative meningitis model dogs
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Research progress in core body temperature measurement during target temperature management
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作者 Guiying LIU Yanyan ZHANG Ling TANG 《Journal of Integrative Nursing》 2022年第1期36-41,共6页
Core body temperature(CBT)is increasingly attracting attention as crucial data during target temperature management(TTM).Accurate and continuous measurement of human CBT can effectively identify and monitor central hi... Core body temperature(CBT)is increasingly attracting attention as crucial data during target temperature management(TTM).Accurate and continuous measurement of human CBT can effectively identify and monitor central high fever,and provide a basis for the effective implementation during TTM,which is therefore of great significance for human health care and disease monitoring.The reliable core measurement sites are nasopharynx,esophagus,bladder,rectum,pulmonary artery,etc.,but the measurement methods in these sites are all invasive.At present,the medical field is more inclined to noninvasive data collection methods through monitoring an appropriate site(such as forehead,mouth,or axilla)depending on clinical circumstances,so as to ensure the comfort and security of patients to the greatest extent.This review will provide reference choosing more safe and accurate temperature measurement methods for patients during TTM by reviewing the sites and accuracy of invasive and noninvasive CBT measurements. 展开更多
关键词 Core body temperature neurocritical care target temperature management
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Sufficiently Elevated Core Body Temperature May Be Necessary to Maintain Cerebral Blood Flow Response throughout the Morning
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作者 Ryohei Tanaka-Kanegae*# Shingo Miyamoto +1 位作者 Masao Sakurai Koichiro Hamada 《Neuroscience & Medicine》 2022年第2期70-90,共21页
In comparison to a carbohydrate-rich breakfast, a nutritionally balanced breakfast reportedly leads to a higher core body temperature because of diet-induced thermogenesis (DIT) and also results in higher task perform... In comparison to a carbohydrate-rich breakfast, a nutritionally balanced breakfast reportedly leads to a higher core body temperature because of diet-induced thermogenesis (DIT) and also results in higher task performance. This study aimed to examine the relationships among the core body temperature, blood glucose level, cerebral blood flow, and cognitive performance when the core body temperature is raised to a similar extent as in DIT in the morning. This crossover study included 18 male participants who performed four sets of cognitive tests in the morning with four different foot baths and glucose intake conditions. In elevated body temperature (EBT) conditions, the core body temperature was increased by a foot bath at 42&#730;C or 39&#730;C, while in low body temperature (LBT) conditions, it was maintained at 35&#730;C by a foot bath;the participants received no glucose or two intakes of 20-g glucose for each thermal condition. In addition to the core body temperature measurement, the cerebral blood flow in the dorsolateral prefrontal cortex (DLPFC) was measured using near-infrared spectroscopy. Three blood collections were performed to measure the changes in blood glucose levels. The results revealed that in the EBT conditions, the core body temperature remained 0.3&#730;C - 0.5&#730;C higher than that at wake-up time, while the glucose intake conditions increased blood glucose levels which remained higher than those during fasting. No significant between-treatment difference was observed in the results of cognitive tests. However, the blood flow in the DLPFC increased during the second test period in the EBT/glucose and LBT/glucose conditions, whereas during the fourth test period, it increased solely in the EBT/glucose condition. Thus, in addition to the blood glucose level, an elevated core body temperature within the physiological range may be needed for long-term maintenance of the cerebral blood flow response. 展开更多
关键词 Elevated Core body temperature Cerebral Blood Flow Dorsolateral Prefrontal Cortex Near-Infrared Spectroscopy Cognitive Function MORNING BREAKFAST Foot Bath
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Investigation on the Application Value of Infrared Forehead Temperature Gun in Body Temperature Screening of New Crown Epidemic
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作者 Kuanlong Shi Jiaxi Zhang Jiawen Wang 《Modern Electronic Technology》 2021年第1期20-23,共4页
The outbreak of the novel coronavirus pneumonia has had a great impact on the life safety of our people and social production activities.Therefore,it is very important and meaningful to analyze the application value o... The outbreak of the novel coronavirus pneumonia has had a great impact on the life safety of our people and social production activities.Therefore,it is very important and meaningful to analyze the application value of infrared forehead thermometers in body temperature screening under the new crown pneumonia epidemic and propose improved measures for body temperature detection.This paper summarizes the questionnaire on the application value of infrared forehead thermometer in body temperature screening and the results of staff interviews,and analyzes the principle of infrared forehead thermometer temperature measurement to explain the factors that affect the accuracy of temperature measurement results.Finally,it is concluded that the reflected radiation of the environment and the temperature measurement distance affect the accuracy of the temperature measurement results of the infrared forehead gun. 展开更多
关键词 New crown pneumonia epidemic body temperature screening Infrared forehead thermometer
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STUDY AND APPLICATION ABOUT COMPUTED SYSTEM FOR EXTERNAL CARDIAC MASSAGE, MONITOR OF HEART AND BODY TEMPERATURE
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作者 LIU Mingshun WU Wensheng +1 位作者 MENG Fanhang ZHU Shouzeng 《现代电生理学杂志》 2006年第1期26-27,共2页
Objective:To make and study computed system for external cardiac massage,monitor of heart and body temperature and observe its clinical effect.Method:The system was made and applied.Result:The effect of system was obv... Objective:To make and study computed system for external cardiac massage,monitor of heart and body temperature and observe its clinical effect.Method:The system was made and applied.Result:The effect of system was obvious.Conclusion: The system was an effective clinical equipment in treatment of patient with cardiac arrest. 展开更多
关键词 computed system for external cardiac massage monitor of heart and body temperature STUDY clinical application
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Effect of the tumescent infiltration solution temperature on body temperature
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作者 王志国 《外科研究与新技术》 2011年第2期133-133,共1页
Objective To evaluate the effect of tumescent infiltration solution temperature on core body temperatureafter liposuction.Methods 15 healthy female subjects were randomly divided into 2 groups to receive tumescent inf... Objective To evaluate the effect of tumescent infiltration solution temperature on core body temperatureafter liposuction.Methods 15 healthy female subjects were randomly divided into 2 groups to receive tumescent infiltration 展开更多
关键词 body Effect of the tumescent infiltration solution temperature on body temperature
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Field body temperature and thermal preference of the big-headed turtle Platysternon megacephalum 被引量:2
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作者 Jianwei SHEN Fanwei MENG +1 位作者 Yongpu ZHANG Weiguo DU 《Current Zoology》 SCIE CAS CSCD 2013年第5期626-632,共7页
The big-headed turtle Platysternon megacephalum is a stream-dwelling species whose ecology is poorly known. We carried out field and laboratory investigations to determine field body temperatures and thermal preferenc... The big-headed turtle Platysternon megacephalum is a stream-dwelling species whose ecology is poorly known. We carried out field and laboratory investigations to determine field body temperatures and thermal preference of this species. In the field, the body temperatures of the turtles conformed to the water temperature, with little diel variation in either summer or au- tumn. Over the diel cycle, the mean body temperatures ranged from 20.8℃ to 22.2℃ in summer and from 19.3℃ to 21.2℃ in autumn; the highest body temperatures ranged from 22.1℃ to 25.0℃ in summer and from 20.6℃ to 23.8℃ in autumn. In the laboratory, the preferred body temperature (Tp) was 25.3℃ Food intake was maximized at 24.0℃, whereas locomotor perfor- mance peaked at 30.0℃. Consequently, Tp was closer to the thermal optimum for food intake than for locomotion. Therefore, this freshwater turtle has relative low field body temperatures corresponding to its thermal environment. In addition, the turtle prefers low temperatures and has a low optimal temperature for food intake [Current Zoology 59 (5): 626-632, 20'13]. 展开更多
关键词 Food intake Locomotion Preferred body temperature THERMOREGULATION Thermal sensitivity
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Impaired function of the suprachiasmatic nucleus rescues the loss of body temperature homeostasis caused by time-restricted feeding 被引量:2
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作者 Zhihui Zhang Qiaocheng Zhai +5 位作者 Yue Gu Tao Zhang Zhengyun Huang Zhiwei Liu Yi Liu Ying Xu 《Science Bulletin》 SCIE EI CAS CSCD 2020年第15期1268-1280,M0003,M0004,共15页
The suprachiasmatic nucleus(SCN)is the master circadian pacemaker that drives body temperature rhythm.Time-restricted feeding(TRF)has potential as a preventative or therapeutic approach against many diseases.The poten... The suprachiasmatic nucleus(SCN)is the master circadian pacemaker that drives body temperature rhythm.Time-restricted feeding(TRF)has potential as a preventative or therapeutic approach against many diseases.The potential side effects of TRF remain unknown.Here we show that daily 4-h TRF treatment in mice can severely impair body temperature homeostasis and can result in lethality.Nearly half of the mice died at 21℃,and all mice died at 18℃during 4-h TRF.This effect was modulated by the circadian clock and was associated with severe hypothermia due to loss of body temperature homeostasis.Remarkably,disrupting the circadian clock by SCN lesions or constant light rescued lethality during TRF.Analysis of circadian gene expression in the dorsomedial hypothalamus(DMH)demonstrated that TRF reprograms rhythmic transcriptome in DMH and suppresses expression of genes,such as Ccr5 and Calcrl,which are involved in thermoregulation.Together,our results demonstrated a potent effect of TRF on body temperature homeostasis and the role of SCN function in this process.Our results further suggested that circadian arrhythmicity can have potential beneficial effects under certain stress conditions. 展开更多
关键词 Time-restricted feeding body temperature HYPOTHERMIA Circadian clock The suprachiasmatic nucleus The dorsomedial hypothalamus
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Body temperature control in patients with refractory septic shock: too much may be harmful 被引量:3
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作者 YANG Yan-li LIU Da-wei WANG Xiao-ting LONG Yun ZHOU Xiang CHAI Wen-zao 《Chinese Medical Journal》 SCIE CAS CSCD 2013年第10期1809-1813,共5页
Background The lowering of body temperature is a common, almost reflexive step in the daily care of septic shock patient. However, the effect of different magnitudes of fever control on the outcome of refractory septi... Background The lowering of body temperature is a common, almost reflexive step in the daily care of septic shock patient. However, the effect of different magnitudes of fever control on the outcome of refractory septic patients with a very poor outcome is controversial and has yet to be explored. Methods This prospective trial examined sixty-five refractory septic shock patients with a core temperature higher than 38.5℃. Patients were randomly assigned to a group achieving a "low temperature" range (LT group: 36.0-37.5 ℃) or to a group achieving a "high temperature" range (HT group: 37.5-38.3 ℃) by physical methods including a water-flow cooling blanket and ice packs. A target core temperature was achieved in 1-2 hours post-treatment, and maintained for 72 hours. Averaged values of core temperature as well as hemodynamic, respiratory, and laboratory variables were analyzed at baseline and during the first 72 hours after fever control. Results Thirty-four (52.31%) patients were assigned to the LT group and thirty-one (47.69%) patients were assigned to the HT group. The mean core temperature was significantly lower in the LT group than in the HT group (36.61 vs. 37.85 ℃, respectively; P 〈 0.0001). The average heart rate (HR) (75.5 vs. 91.9 beats/min, respectively; P 〈 0.0001) and the mean cardiac output (CO) (5.35 vs. 6.45 L/min, respectively; P = 0.002) were also statistically significant lower in the LT group than in the HT group. The averaged serum lactate level was significantly higher in the LT group compared to the HT group (5.59 vs. 2.82 mmol/L, respectively; P=0.008). Fibrinogen and activated partial thromboplatin time were also different between the two groups. The 28 days mortality was significantly higher in the LT group than in the HT group (61.8 vs. 25.8%, respectively; P=0.003). A Cox-regression model analysis showed that mean core temperature during the 72 h period was an independent predictor of 28 days mortality (odds ratio (OR) = 0.42, 95%C/0.25, 0.6; P=0.001). Conclusion Controlling fever to a lower range (36.0-37.5 ℃) may be harmful to patients with refractory septic shock by worsening tissue perfusion, compared to controlling it within a higher range (37.5-38.3 ℃). An understanding of the mechanisms responsible for these observations requires further investigation. 展开更多
关键词 septic shock body temperature fever
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First order dynamics approaching of broiler chicken deep body temperature response to step changes in ambient temperature 被引量:1
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作者 Takoi K.Hamrita Richard H.Conway 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2017年第4期13-21,共9页
Traditional environmental control methods for poultry housing which rely solely on environmental factors fall short in meeting thermal and physiological needs of the animals.New methods are needed that factor in the p... Traditional environmental control methods for poultry housing which rely solely on environmental factors fall short in meeting thermal and physiological needs of the animals.New methods are needed that factor in the physiological needs and responses of the animals in order to maximize well-being of the animals and minimize heat stress.Deep body temperature(DBT)has been shown in the literature to be a strong indicator of heat stress,therefore studies are needed that help us gain a deeper understanding of the relationship between this variable and environmental conditions.The aim of this study was to identify the order of the dynamic response of poultry DBT to large step changes in ambient temperature(AT).Temperature steps had to be big enough to take the chickens out of their homeothermic zone.A total of 46 DBT/AT data sets with 23 upward AT steps and 23 downward AT steps were obtained using a biotelemetry system,and involving three chickens.DBT responses of individual chickens to step changes in AT were found to have a 0.88 average Pearson correlation suggesting consistency in chickens’responses to the same stimuli(p<0.0005).The data indicated that DBT responses to AT followed a first order behavior in most cases with an average time constant of 1.6 h,and the curve fitting method was used to validate this observation.There was a 0.88 average correlation between DBT model and measured data(p<0.0005).These results indicate statistical significance in the data used and the model derived from it.In conclusion,it is reasonable to assume that the dynamic response of poultry DBT to large step changes in ambient temperature follows a first order model.Although further studies are needed to more fully derive the model,this study provided a stepping-stone towards gaining a better understanding of the relationship between DBT and AT,therefore taking us one step closer towards making optimal management and risk assessment decisions that are based on physiological needs of the chickens. 展开更多
关键词 environmental control ambient temperature deep body temperature BIOTELEMETRY step response dynamic modeling broiler chicken physiological responses
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Study on body temperature detection of pig based on infrared technology: A review 被引量:7
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作者 Zaiqin Zhang Hang Zhang Tonghai Liu 《Artificial Intelligence in Agriculture》 2019年第1期14-26,共13页
Body temperature is an important physiological indicator in the whole process of pig breeding.Temperature measurement is also an effective means to assist in disease diagnosis and pig health monitoring.In the conventi... Body temperature is an important physiological indicator in the whole process of pig breeding.Temperature measurement is also an effective means to assist in disease diagnosis and pig health monitoring.In the conventional method of measuring body temperature,a mercury column is used to obtain the rectal temperature.The operation of thismethod is complicated and requires a large amount of labor.This kind of temperature measurement method is contact and canmake the pig stressed,which is disadvantageous for the healthy growth of pigs.Therefore,rectal temperaturemeasurement no longer meets the needs of the large-scale pig industry in China's welfare agriculture.In recent years,the emerging pig body temperature detection technologies are electronic temperaturemeasurement technology,infrared temperature measurement technology and so on.Infrared temperature measurement technology has been the main means of measuring the temperature of pig body surface with its advantages of non-contact,long distance and real-time.At present,infrared temperature measurement technology and infrared image processing technology used in pig breeding are still in the exploration stage.Nowadays,the infrared temperature measurement equipment based on point-by-point analysis represented by infrared thermometer and temperature measurement equipment based on full-field analysis represented by infrared thermal imager have been applied to pig breeding industry.These types of temperaturemeasurement are more in line with the needs of the pig breeding industry to transform and upgrade to the automation,in line with the development concept of welfare farming and smart agriculture,and its development prospects are very impressive. 展开更多
关键词 Pig body temperature measurement NON-CONTACT Infrared image processing
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Application of Equivalent Black Body Temperature in the Forecast of Tropical Cyclone Intensity
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作者 陈佩燕 端义宏 +1 位作者 余晖 胡春梅 《Acta meteorologica Sinica》 SCIE 2007年第4期465-475,共11页
Using equivalent black body temperature (TBB) data retrieved from meteorological satellite GMS-5 during 1996-2002, the correlation between the circular symmetric/asymmetric component of TBB and the intensity of trop... Using equivalent black body temperature (TBB) data retrieved from meteorological satellite GMS-5 during 1996-2002, the correlation between the circular symmetric/asymmetric component of TBB and the intensity of tropical cyclone (TC) at various time lags from 0 to 48 h is analyzed for the Northwest Pacific (0^-50~N, 120%155~E), excluding landed and near-coast samples. It is found that the total TBB near southeast of the eyewall, the circular symmetric component, and the sum of the amplitudes of tangential wave numbers 1-10 (SA10) of the TBB between the radii of 0.8^o and 1.7^o are significantly and negatively correlated with the TC intensity at various time lags from 0 to 48 h. Especially, the maximum 24-h lag correlation coefficients reach -0.52, -0.58, and -0.625, respectively. A statistical prediction scheme for TC intensity is developed based on climatic persistent, synoptic, and TBB factors by stepwise regression technique. It is found that the variance contribution of the averaged TBB over the ring between 1.0^o and 1.5^o from the TC center ranks the fourth in the equation for 12-h TC intensity prediction, and those of the total TBB near southeast of the eyewall and the difference between maximum and minimum TBB between 1.1^o and 1.5^o rank the third and fifth respectively in the 24-h forecast equation. It is also shown that, with TBB factors, the following predictions are improved compared to the scheme without TBB factors: 48-h prediction for severe tropical storm (STS), 12-h prediction for TC with a weakening rate greater than 15 m s-1/12 h, 24-h intensity prediction for TC with almost no intensity change, and 48-h prediction for TC intensifying faster than 10 m s^-1/48 h. 展开更多
关键词 TBB (black body temperature asymmetry intensity prediction tropical cyclone
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Linearly shifting ferromagnetic resonance response of La_(0.7)Sr_(0.3)MnO_(3) thin film for body temperature sensors
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作者 Weixiao HOU Yufei YAO +6 位作者 Yaojin LI Bin PENG Keqing SHI Ziyao ZHOU Jingye PAN Ming LIU Jifan HU 《Frontiers of Materials Science》 SCIE CSCD 2022年第1期111-117,共7页
Human body temperature not only reflects vital signs,but also affects the state of various organs through blood circulation,and even affects lifespan.Here a wireless body temperature detection scheme was presented tha... Human body temperature not only reflects vital signs,but also affects the state of various organs through blood circulation,and even affects lifespan.Here a wireless body temperature detection scheme was presented that the temperature was extracted by investigating the out-of-plane(OP)ferromagnetic resonance(FMR)field of 10.2 nm thick La_(0.7)Sr_(0.3)MnO_(3)(LSMO)film using electron paramagnetic resonance(EPR)technique.Within the range of 34-42℃,the OP FMR field changes linearly with the increasing or decreasing temperature,and this variation comes from the linear responses of magnetization to the fluctuant temperature.Using this method,a tiny temperature change(<0.1℃)of organisms can be detected accurately and sensitively,which shows great potential in body temperature monitoring for humans and mammals. 展开更多
关键词 body temperature ferromagnetic resonance La0.7Sr0.3MnO3 film linear response
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