186,392 research outputs found
The Correspondence of Clavius, Dal Monte, Magini and other Italian astronomers on the Nova of 1604
No full textFrom the preface of Patrick J. Boner (p.15): "In [this] contribution, Matteo Cosci surveys the many scholars in Italy who exchanged letters about the 'new stars' of 1604. While the scope of his study centers on Cristoph Clavius (1538-1612), Cosci examines the records of several other sources, including one of the earliest observers of the 'new star' whom he he identifies for the first time as Andrea Argoli (1570-1657). Cosci concludes with the work of Magini, another focal point in 'the sprawling network of scientific exchange' whose observations and planetary tables proved indispensable for Kepler.
Cosci versus Summers technique for crestal sinus lift: 3-year results from a randomised controlled trial.
No full textPURPOSE: To compare the effectiveness of two different techniques to lift the maxillary sinus via a crestal approach: the Summers versus the Cosci technique.
MATERIALS AND METHODS: Fifteen partially edentulous patients missing bilaterally maxillary molars and/ or premolars, having 4 to 7 mm of residual crestal height and at least 5 mm thickness below the maxillary sinuses measured on CT scans, were randomised to have implants placed in sinuses crestally lifted according to the Cosci or the Summers techniques, with bone substitutes according to a split-mouth design. Implants were left to heal submerged for 6 months. Implants were loaded with acrylic provisional crowns/prostheses. Screw-retained definitive metal-ceramic prostheses were delivered 4 months after provisional loading. Outcome measures were: prosthesis and implant failures; any complications; operation time; operator preference; patient preference and peri-implant marginal bone level changes assessed by a blinded outcome assessor. All patients were followed to 3 years after implant loading.
RESULTS: Nineteen study implants were placed according to each technique. Three years after loading, 3 patients dropped out and no implant failed. No discomfort/complications occurred at sites treated with the Cosci technique, whereas 12 patients reported discomfort during the augmentation procedure at the side treated with the Summers technique; this was statistically significant (P = 0.0005). In one of these patients, a perforation of the sinus membrane occurred. Postoperatively, headache was reported by 9 patients and swelling occurred in 3 of these patients at the Summers treated sides. Statistically significant less time (9.7 mins, SD = 4.0, P < 0.001, 95% CI -11.9 to -7.5) was required to place implants according to the Cosci technique (33 versus 24 mins on average). The 2 operators and 14 out of 15 patients preferred the Cosci technique 1 month after surgery (P = 0.001), and 1 year after surgery (13 out of 15 patients, P = 0.007). The ceramic layer of one prosthesis of the Summers' group and one abutment screw of the Cosci's group loosened between 1 to 3 years post-loading. After 3 years, implants inserted according to the Cosci technique lost 1.39 mm of peri-implant bone versus 1.54 mm for the implants placed with the Summers technique. There were no statistically significant differences for marginal bone level changes between the two groups (difference 0.15 mm, 95% CI -0.11 to 0.41, P = 0.24).
CONCLUSIONS: Both crestal sinus lift techniques produced successful results over a 3-year follow-up period, but the Cosci technique required less surgical time, determined less intra- and postoperative morbidity and was preferred by patients. Conflict of interest statement: This was an investigator-initiated trial, however the trial was partially supported by Zimmer Dental Italy, Vittorio Veneto (TV), Italy. One of the authors (Dr Cosci), who treated 8 patients in this study, is the inventor of the Cosci technique and his partipation was a prerequisite of the sponsor to support the trial
Crestal sinus lift for implant rehabilitation: a randomised clinical trial comparing the Cosci and the Summers techniques. A preliminary report on complications and patient preference
No full textPURPOSE: To compare the effectiveness of two different techniques to lift the maxillary sinus via a crestal approach: the Summers versus the Cosci technique.
MATERIALS AND METHODS: Fifteen partially edentulous patients missing bilaterally maxillary molars and/ or premolars having 4 to 7 mm of residual crestal height and at least 5 mm thickness below the maxillary sinuses measured on computed tomography scans were randomised to have implants placed in sinuses crestally lifted according to the Cosci or Summers technique with bone substitutes according to a split-mouth design. Implants were left to heal submerged for 6 months. Implants were loaded with acrylic provisional crowns/prostheses. Screw-retained definitive metal-ceramic prostheses were delivered 4 months after provisional loading. Outcome measures were prosthesis and implant failures, any complications, operation time, operator preference, and patient preference assessed 1 month after surgery and 1 month after delivery of the final prostheses by a blinded outcome assessor. All patients were followed up to 5 months after loading (1 year after implant placement).
RESULTS: Nineteen study implants were placed according to each technique. No patient dropped out and no implant failed. No discomfort/complications occurred at sites treated with the Cosci technique whereas 12 patients reported discomfort during the augmentation procedure at the side treated with the Summers technique, this was statistically significant, and in one of these patients a perforation of the sinus membrane occurred. Postoperatively, headache was reported by nine patients and swelling occurred in three of these patients at the Summers treated sides. Statistically significantly less time was required to place implants according to the Cosci technique (33 versus 24 minutes, on average). The two operators and 14 out of 15 patients preferred the Cosci technique.
CONCLUSIONS: Both crestal sinus lift techniques were successful but the Cosci technique required less surgical time, produced less intra- and postoperative morbidity and was preferred by patients
Brentano and Hillebrand on Syllogism: Development and Reception of the ‘Idiogenetic’ Theory
No full text"The seventh chapter presents Franz Brentano and Franz Hillebrand’s ‘idiogenetic theory’, a post-scholastic type of syllogistic theory involving acts of judging which were regarded as belonging as such to a special genus (idios genos) of psychical phenomena. The logical traits of the theory were first put forward by Brentano in his Psychologie vom empirischen Standpunkt (1874, first ed.) and then formally presented in Hillebrand’s Die neuen Theorien der kategorischen Schlüsse (1891). The most novel aspect of the theory was that all judgements were restated in existential form as single- membered assertions, or rejections, whose subject and predicate could be simpliciter converted. The proposal provoked numerous reactions. Particularly the last part of Hillebrand’s system, namely the extension about ‘double judgments’ (existential and predicative judgments bound together), was criticized by Husserl and Meinong, among others. But it also received active support from Brentano’s student Anton Marty. In his chapter, Matteo Cosci recalls the Leibnizian antecedent that showed the character of supposition of the existential import holding in the traditional square of oppositions. That assumption was a matter of concern for Brentano, who may have been aware of its formulation (possibly via Leibniz’s Difficultates Quaedam Logicae) in the process of developing his own reform of syllogistic on new, intentionalistic grounds. Aside from its intrinsic merits and originality, Brentano and Hillebrand’s ‘idiogenetic theory’ had a considerable impact in the fields of descriptive psychology, analytic philosophy and early phenomenology towards the end of the century – not to mention its relevance for the great current in logic inaugurated by Kazimierz Twardowski, prominent student of Brentano and the standard-bearer of his reform in Poland at the beginning of the twentieth century.", Introduction, p.
Cosci versus Summers technique for crestal sinus lift: 3-year results from a randomised controlled trial
No full textPurpose: To compare the effectiveness of two different techniques to lift the maxillary sinus via a crestal approach: the Summers versus the Cosci technique. Materials and methods: Fifteen partially edentulous patients missing bilaterally maxillary molars and/or premolars, having 4 to 7 mm of residual crestal height and at least 5 mm thickness below the maxillary sinuses measured on CT scans, were randomised to have implants placed in sinuses crestally lifted according to the Cosci or the Summers techniques, with bone substitutes according to a split-mouth design. Implants were left to heal submerged for 6 months. Implants were loaded with acrylic provisional crowns/prostheses. Screw-retained definitive metal-ceramic prostheses were delivered 4 months after provisional loading. Outcome measures were: prosthesis and implant failures; any complications; operation time; operator preference; patient preference and peri-implant marginal bone level changes assessed by a blinded outcome assessor. All patients were followed to 3 years after implant loading. Results: Nineteen study implants were placed according to each technique. Three years after loading, 3 patients dropped out and no implant failed. No discomfort/complications occurred at sites treated with the Cosci technique, whereas 12 patients reported discomfort during the augmentation procedure at the side treated with the Summers technique; this was statistically significant (P = 0.0005). In one of these patients, a perforation of the sinus membrane occurred. Postoperatively, headache was reported by 9 patients and swelling occurred in 3 of these patients at the Summers treated sides. Statistically significant less time (9.7 mins, SD = 4.0, P < 0.001, 95% CI -11.9 to -7.5) was required to place implants according to the Cosci technique (33 versus 24 mins on average). The 2 operators and 14 out of 15 patients preferred the Cosci technique 1 month after surgery (P = 0.001), and 1 year after surgery (13 out of 15 patients, P = 0.007). The ceramic layer of one prosthesis of the Summers' group and one abutment screw of the Cosci's group loosened between 1 to 3 years post-loading. After 3 years, implants inserted according to the Cosci technique lost 1.39 mm of peri-implant bone versus 1.54 mm for the implants placed with the Summers technique. There were no statistically significant differences for marginal bone level changes between the two groups (difference 0.15 mm, 95% CI -0.11 to 0.41, P = 0.24). Conclusions: Both crestal sinus lift techniques produced successful results over a 3-year follow-up period, but the Cosci technique required less surgical time, determined less intra- and postoperative morbidity and was preferred by patients
De sponsalibus filiorum familias... Vota decisiva
No full textPort. a dos tintasEsc. calc. en portContiene : Sacrae Rotae Romanae Decisiones / A Christophoro Cosci... collectae..., con portada propia, p. 28
Recensione di "Christoper P. Long, Aristotle on The Nature of Truth, Cambridge University Press, 2011".
No full textReview of "Christoper P. Long, Aristotle on The Nature of Truth, Cambridge University Press, 2011"
Introduction. History of Modern Logic in a New Key
No full text"We like to think of the aim of the book as doing for modern logic what John Corcoran did for the work of George Boole, namely to make sense of and do justice to the idea that Aristotelian syllogistic logic contributed to its creation. More specifically, the chapters show that the period between the nineteenth and early twentieth century saw a parallel development of modern logicians reshaping syllogism and reflections on syllogism shaping modern logic. This might sound odd as it stands in striking contrast to the standard narrative about the history of modern logic, which says that its creation and development happened in spite of, or in direct opposition to, the old logic. W. V. Quine, for one, wrote that Aristotelian logic is to modern logic what the ‘arithmetic of primitive tribes’ is to modern mathematics: not even a scientific predecessor but a ‘pre-scientific fragment’.", p. 1
A study of students’ learning pathways on the buoyant force through the CoSci learning platform
No full textThe study of students’ learning pathways is necessary for teachers to understand how students learn. In learning or solving some problems, the students have their own strategy for constructing knowledge to learn and solve. During students’ learning, they will apply their previous knowledge to further create a body of knowledge. For example, students need to understand basic concepts related to the buoyant force – density, mass, volume, water level, weight, and depth – before solving the buoyancy problem (Wongsuwan & Huntula, 2019). Therefore, if teachers know how students learn, they can encourage and promote students to learn better. Teachers can also know what the difficulties for students in learning are. However, to study how students learn and learning pathways, is to study something inside a person. Yet, some students are not able to express their thoughts by speaking or writing, which makes it difficult to understand how they learn and their learning pathways. Therefore, it is a challenge for teachers to find appropriate ways and strategies to understand students' learning pathways validly. One of the reliable tools used to investigate students' conceptual understanding and students' learning pathways is the CoSci learning platform with an interactive computer simulation. The CoSci can be used to record students' behaviors such as students' answers, frequency of operating computer simulations, times, and date of interaction with the platform. Moreover, there is the Lag Sequential Analysis function (LSA) which is one of the functions of CoSci to calculate and display students' activity patterns, referred to as a learning pathway in this presentation.
This study aims to investigate 1) students' learning pathways on the buoyant force, and 2) the relation between Predict-Observe-Explain (POE) activity performance and learning performance of eighteen students in eleventh grade in science classrooms of a university-affiliated school project (SCiUS), Khon Kaen University, Thailand. The focusing conception was the buoyant force and the basics conception related to the buoyant force which are mass (M), volume(V), density(D), the level of solution(L), submerged depth(H), and weight(W). The POE with the interactive computer simulation (i.e., the CoSci learning platform) was developed on the CoSci platform based on students' alternative concepts and used to facilitate students' conceptual understanding of the buoyant force (Wongsuwan & Huntula, 2021). In this study, the LSA was used to calculate and display students' learning pathways while students were learning on the CoSci meanwhile, Spearman's correlation was used to compute the correlation between the post-test score (learning performance) and the score of each step of the POE. The findings showed that the most difficult concept for students to learn about the buoyant force was the concept related to the mass of the object. This study identified two groups of students' learning pathways patterns on the buoyant force: 1) the V-M-W pattern, which is starting from the basic concepts of volume then mass, and weight consequently which facilitated students in learning the buoyant force; 2) the W-M-V pattern, which means student started to learn the basic concepts of weight then mass and volume consequently, that made students still confused in learning the buoyant force. Spearman's correlation showed a significant positive relationship between learning performance and explanation score (r=1.00, p<0.01) and a significant negative relationship between learning performance and the frequency of running the simulation (p<0.05). The implications of the findings are discussed in this presentation.
REFERENCES
Wongsuwan, W., and Hantula, J. (2019). The students’ basic conceptions of Buoyant force. Journal of Physics: Conference Series. 1380 012139.
Wongsuwan, W., and Hantula, J. (2021). The interactive computer simulation and learning activity for facilitating students’ conceptual understanding on the buoyant force through the CoSci learning platform. Journal of Physics: Conference Series. 2145 012075
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