The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to pro...The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to provide the scientific basis and basic data for scientific evaluation and protection of original ecological environ-ment of the natural reserve and Francois langur’s habitat, and vegetation recover. The results showed that 4.8 hm2 of the nature reserve was submerged after reser-voir fil ing, which occupied for 0.1% of total area of the natural reserve only. The main influence area was in the submerged area of Hongdu River basin. The water level rise resulted in partial changes in land utilization and soil erosion, which indi-cates that reservoir fil ing has insignificant effect on ecological environment of the whole natural reserve.展开更多
Comparative studies of sympatric species are essential for understanding behavioral and ecological adaptation as well as the mechanisms that can reduce resource competition to allow coexistence. Francois＇ langurs （T...Comparative studies of sympatric species are essential for understanding behavioral and ecological adaptation as well as the mechanisms that can reduce resource competition to allow coexistence. Francois＇ langurs （Trachypithecus francoisi） and Assamese macaques （Macaca assamensis） are sympatric primate species found in the limestone seasonal rainforests of Nonggang Nature Reserve, southwestern Guangxi, China. To explore their different adaptation strategies, we collected data on diet using scan sampling at 15-min intervals. Our results revealed that Francois＇ langurs showed a more flexible diet composition than Assamese macaques Francois＇ langurs increased dietary diversity and mature leaf consumption in response to seasonal scarcity of preferred young leaves and fruits, whereas Assamese macaques relied heavily on young bamboo leaves （Indocalamus calcicolus） in most months These variations reflect the differences in digestive physiology, morphology, and the temporal and spatial distribution of food resources.展开更多
Introduction: Diagnostic wanderings of acute appendicitis are responsible for serious complications or abusive appendectomies. Existing Clinico-biological scores are efficient. Objective: To determine the diagnostic e...Introduction: Diagnostic wanderings of acute appendicitis are responsible for serious complications or abusive appendectomies. Existing Clinico-biological scores are efficient. Objective: To determine the diagnostic efficiency of Fran?ois’ score in acute appendicitis. Methodology: over 10 months, all the patients admitted in the CHUD-Parakou Emergency Department for pain in the right iliac fossa had been examined by resident students who calculated Fran?ois’ score. After verification by the surgeon, patients were put into three categories: category 1 score ≥ 2;category 2, score between -6 and 2;category 3, score below -6. Sensitivity and specificity were calculated. Results: out of 54 patients selected (29 men and 25 women), 29 were classified as group 1;19 as group 2 and 6 as group 3. An ultrasound was performed in all patients in group 2, and signs in favor of appendicitis were found in 12 patients. Of the 41 appendicectomies performed, the histologic analysis of 33 operative specimens found a pathological appendix. Sensitivity, specificity and negative predictive value per group were 100%. It has prevented almost in one every four patients (24.07%) an abusive appendectomy. Conclusion: This score would reduce diagnostic wanderings and target patient groups for imaging studies.展开更多
Objective: To report in vivo corneal confocal microscopic findings of patients with central cloudy dystrophy of Franc.ois. Methods: Two unrelated patients, a 78- year- old man and a 75- year- old woman, with central c...Objective: To report in vivo corneal confocal microscopic findings of patients with central cloudy dystrophy of Franc.ois. Methods: Two unrelated patients, a 78- year- old man and a 75- year- old woman, with central cloudy dystrophy of Franc.ois were examined using routine slitlamp biomicroscopy and confocal microscopy. Results: In both cases, slitlamp biomicroscopy showed bilateral polygonal opacities separated by clear spaces. The corneal opacities were most prominent centrally and were located in the deeper stromal layer immediately anterior to the Descemet membrane. By confocal microscopy, normal superficial and basal epithelial layers, midstromal layers, and endothelial layers were noted in both cases. However, small highly refractile granules and deposits were observed in the anterior stromal layer in both cases. Also, multiple dark striae among the extracellular matrix with increased intensities were observed in the posterior stroma adjacent to the corneal endothelial layer in both cases. Conclusions: Abnormal stromal deposits and multiple dark striae were observed in central cloudy dystrophy of Franc.ois using in vivo corneal confocal microscopy. Use, of confocal microscopy to investigate these abnormal stromal opacities may be helpful in differentiating various corneal stromal pathologic features.展开更多
Purpose: To report a case of laser in situ keratomileusis (LASIK) surgery performed in a patient with likely central cloudy corneal dystrophy of Francois (CCDF). Design: Observational case report. Methods: A48- year- ...Purpose: To report a case of laser in situ keratomileusis (LASIK) surgery performed in a patient with likely central cloudy corneal dystrophy of Francois (CCDF). Design: Observational case report. Methods: A48- year- old woman with likely CCDF had myopic LASIK to establish monovision. Outcome measures included visual acuity, manifest refraction, and slit- lamp examination. Results: At5- year follow- up, the patient had uncorrected visual acuity of 20/100, J1, in the right eye (OD)- and 20/20 in the left eye (OS), consistent with monovision correction. Manifest refraction was- 1.50 OD and- 0.25 OS postoperatively; after retreatment at 1 year for regression, the left eye remained stable over the subsequent4- year period. Slitlamp examination revealed no progression of corneal opacities in either eye. Conclusions: LASIK may be safe and effective in patients with CCDF. Further observations of a greater number of patients are required to confirm these findings.展开更多
The historiographical mandate of the term antiquarianism has increased dramatically in recent decades.In its original European context,the term referred to the investigations of the things undertaken by antiquaries,th...The historiographical mandate of the term antiquarianism has increased dramatically in recent decades.In its original European context,the term referred to the investigations of the things undertaken by antiquaries,those who pursued remote knowledge by exploring the connections between material traces and historical texts.展开更多
The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietn...The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietnam and southern China. Here we report a new case of usage of caves as overnight sleeping shelters by Franqois＇ or black langurs （Trachypithecusfraru;oisi） at Mayanghe National Nature Reserve in Yanhe County, Guizhou Province, China. We tentatively address three possible hypotheses that may account for the use of caves in Francois＇ langurs at Mayanghe： shelter against climatic conditions, acquisition of minerals and protection from predators. utilization展开更多
We studied the locomotor behaviour of white-headed langurs Trachypithecus leucocephalus and Francois＇ langurs T.francoisi to test two hypotheses： （1） these monkeys have evolved locomotor ability to support their a...We studied the locomotor behaviour of white-headed langurs Trachypithecus leucocephalus and Francois＇ langurs T.francoisi to test two hypotheses： （1） these monkeys have evolved locomotor ability to support their activities on limestone hills, and （2） Francois＇ langurs have evolved more diverse locomotor skills than white-headed langurs. Data were collected from 1996 - 1998 and in 2005 in Fusui Nature Reserve, Guangxi, and showed that the two species had similar locomotor types, but Francois＇ langurs had more locomotor modes （26） than white-headed langurs （12）. Quadrupedal walking and leaping were two major types, and white-headed langurs were more arboreal than Francois＇ langurs. We suggest that, while keeping their ancestral locomotor types, the two species have evolved new types allowing them to live on limestone cliffs. Compared to white-headed langurs, Francois＇ langurs have more diverse locomotor modes that probably have allowed them to live in more habitat types. As an evolutionary outcome, Francois＇ langurs have a larger distribution range .展开更多
基金Supported by Guizhou Science and Technology Foundation[(2007)2164]Guizhou Science and Technology Plan Project[(2012)3058]~~
文摘The ecological environmental changes of Francois langur natural reserve was monitored during Pengshui Reservoir construction and influence of reservoir fil-ing on the habitat of the natural reserve was analyzed to provide the scientific basis and basic data for scientific evaluation and protection of original ecological environ-ment of the natural reserve and Francois langur’s habitat, and vegetation recover. The results showed that 4.8 hm2 of the nature reserve was submerged after reser-voir fil ing, which occupied for 0.1% of total area of the natural reserve only. The main influence area was in the submerged area of Hongdu River basin. The water level rise resulted in partial changes in land utilization and soil erosion, which indi-cates that reservoir fil ing has insignificant effect on ecological environment of the whole natural reserve.
基金supported by the National Nature Science Foundation of China(31670400,31672285,31660616)Guangxi Natural Science Foundation(2015GXNSFDA139013)+1 种基金Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection,Ministry of Education,ChinaGuangxi Key Laboratory of Rare and Endangered Animal Ecology,Guangxi Normal University
文摘Comparative studies of sympatric species are essential for understanding behavioral and ecological adaptation as well as the mechanisms that can reduce resource competition to allow coexistence. Francois＇ langurs （Trachypithecus francoisi） and Assamese macaques （Macaca assamensis） are sympatric primate species found in the limestone seasonal rainforests of Nonggang Nature Reserve, southwestern Guangxi, China. To explore their different adaptation strategies, we collected data on diet using scan sampling at 15-min intervals. Our results revealed that Francois＇ langurs showed a more flexible diet composition than Assamese macaques Francois＇ langurs increased dietary diversity and mature leaf consumption in response to seasonal scarcity of preferred young leaves and fruits, whereas Assamese macaques relied heavily on young bamboo leaves （Indocalamus calcicolus） in most months These variations reflect the differences in digestive physiology, morphology, and the temporal and spatial distribution of food resources.
文摘Introduction: Diagnostic wanderings of acute appendicitis are responsible for serious complications or abusive appendectomies. Existing Clinico-biological scores are efficient. Objective: To determine the diagnostic efficiency of Fran?ois’ score in acute appendicitis. Methodology: over 10 months, all the patients admitted in the CHUD-Parakou Emergency Department for pain in the right iliac fossa had been examined by resident students who calculated Fran?ois’ score. After verification by the surgeon, patients were put into three categories: category 1 score ≥ 2;category 2, score between -6 and 2;category 3, score below -6. Sensitivity and specificity were calculated. Results: out of 54 patients selected (29 men and 25 women), 29 were classified as group 1;19 as group 2 and 6 as group 3. An ultrasound was performed in all patients in group 2, and signs in favor of appendicitis were found in 12 patients. Of the 41 appendicectomies performed, the histologic analysis of 33 operative specimens found a pathological appendix. Sensitivity, specificity and negative predictive value per group were 100%. It has prevented almost in one every four patients (24.07%) an abusive appendectomy. Conclusion: This score would reduce diagnostic wanderings and target patient groups for imaging studies.
文摘Objective: To report in vivo corneal confocal microscopic findings of patients with central cloudy dystrophy of Franc.ois. Methods: Two unrelated patients, a 78- year- old man and a 75- year- old woman, with central cloudy dystrophy of Franc.ois were examined using routine slitlamp biomicroscopy and confocal microscopy. Results: In both cases, slitlamp biomicroscopy showed bilateral polygonal opacities separated by clear spaces. The corneal opacities were most prominent centrally and were located in the deeper stromal layer immediately anterior to the Descemet membrane. By confocal microscopy, normal superficial and basal epithelial layers, midstromal layers, and endothelial layers were noted in both cases. However, small highly refractile granules and deposits were observed in the anterior stromal layer in both cases. Also, multiple dark striae among the extracellular matrix with increased intensities were observed in the posterior stroma adjacent to the corneal endothelial layer in both cases. Conclusions: Abnormal stromal deposits and multiple dark striae were observed in central cloudy dystrophy of Franc.ois using in vivo corneal confocal microscopy. Use, of confocal microscopy to investigate these abnormal stromal opacities may be helpful in differentiating various corneal stromal pathologic features.
文摘Purpose: To report a case of laser in situ keratomileusis (LASIK) surgery performed in a patient with likely central cloudy corneal dystrophy of Francois (CCDF). Design: Observational case report. Methods: A48- year- old woman with likely CCDF had myopic LASIK to establish monovision. Outcome measures included visual acuity, manifest refraction, and slit- lamp examination. Results: At5- year follow- up, the patient had uncorrected visual acuity of 20/100, J1, in the right eye (OD)- and 20/20 in the left eye (OS), consistent with monovision correction. Manifest refraction was- 1.50 OD and- 0.25 OS postoperatively; after retreatment at 1 year for regression, the left eye remained stable over the subsequent4- year period. Slitlamp examination revealed no progression of corneal opacities in either eye. Conclusions: LASIK may be safe and effective in patients with CCDF. Further observations of a greater number of patients are required to confirm these findings.
文摘The historiographical mandate of the term antiquarianism has increased dramatically in recent decades.In its original European context,the term referred to the investigations of the things undertaken by antiquaries,those who pursued remote knowledge by exploring the connections between material traces and historical texts.
文摘The utilization of caves is a rather rare phenomenon in nonhuman primates, found almost exclusively in those members of the genus Trachypithecus that share a preference for forest on limestone （karst） hills in Vietnam and southern China. Here we report a new case of usage of caves as overnight sleeping shelters by Franqois＇ or black langurs （Trachypithecusfraru;oisi） at Mayanghe National Nature Reserve in Yanhe County, Guizhou Province, China. We tentatively address three possible hypotheses that may account for the use of caves in Francois＇ langurs at Mayanghe： shelter against climatic conditions, acquisition of minerals and protection from predators. utilization
文摘We studied the locomotor behaviour of white-headed langurs Trachypithecus leucocephalus and Francois＇ langurs T.francoisi to test two hypotheses： （1） these monkeys have evolved locomotor ability to support their activities on limestone hills, and （2） Francois＇ langurs have evolved more diverse locomotor skills than white-headed langurs. Data were collected from 1996 - 1998 and in 2005 in Fusui Nature Reserve, Guangxi, and showed that the two species had similar locomotor types, but Francois＇ langurs had more locomotor modes （26） than white-headed langurs （12）. Quadrupedal walking and leaping were two major types, and white-headed langurs were more arboreal than Francois＇ langurs. We suggest that, while keeping their ancestral locomotor types, the two species have evolved new types allowing them to live on limestone cliffs. Compared to white-headed langurs, Francois＇ langurs have more diverse locomotor modes that probably have allowed them to live in more habitat types. As an evolutionary outcome, Francois＇ langurs have a larger distribution range .
