Reducing Student Writing Time and Instructor Grading Time of Laboratory Reports

A previous study by the authors demonstrated with 95% confidence that the synopsis laboratory report format, a brief, information-rich summary, provides students with an equally positive learning experience in comparison to the longer, introduction/results/ conclusion “traditional” laboratory report format. This study examined the additional benefits of the synopsis laboratory report format; reduced student writing time and instructor grading time. A convenience sample of 56 Iowa State University industrial technology students was randomized into one of two groups that were required to write either five synopses followed by four traditional reports or four synopses followed by five traditional reports. The analysis of grading times using the paired-samples t-test revealed that synopsis reports required 4.5 to 5.8 fewer minutes to grade than traditional reports (p \u3c 0.001). The analysis of student writing times using the pairedsamples t-test revealed that synopsis reports required 32 to 44 fewer minutes to write than traditional reports (p \u3c 0.001). The results of an end-of-semester exit survey revealed that students also perceived the difference in writing time (p \u3c 0.001)

The Impact of Laboratory Report Format on Student Learning

This study sought to identify the effects on student learning of a brief `synopsis format\u27 laboratory report versus the lengthier `traditional format\u27 laboratory report. Fifty-six Iowa State University industrial technology students were randomized into one of two groups that were required to write five synopses followed by four traditional reports or vice versa. Latin Square Design analysis revealed no difference in exam scores between students who wrote synopsis reports versus those who wrote traditional reports. Exit survey results revealed that students preferred the synopsis format and perceived that the synopsis format required them to think more deeply about the content

An Evaluation of Student Performance on Traditional vs. Synopsis Laboratory Reports in Industrial Technology

Prior research demonstrated that writing synopsis laboratory reports (succinct syntheses of the experiment, lecture, and readings) instead of traditional laboratory reports, did not influence student learning as measured by comprehensive exam scores. This study extended this research by investigating the impact of these lab report formats on student learning as measured by laboratory report scores. Fifty-six Iowa State University industrial technology students were randomized into one of two groups that were required to write five synopsis reports followed by four traditional reports or vice-versa. The analysis of mean laboratory report scores using the paired-samples t-test revealed no significant difference between treatments. The analysis of the mean scores of the nine individual laboratory reports using two-sample t-tests revealed no treatment effect for seven of the nine reports. The results of an exit survey revealed that students believed the synopsis format helped them to achieve higher grades on their laboratory reports

Conjoint bicondylar Hoffa fracture in a child: a rare variant treated by minimally invasive approach

A case of conjoint Hoffa-type fracture in a child is presented. Hoffa fracture, i.e., coronal slice fracture of the condyles of the femur, is rare in adults and even rarer in the pediatric population. To date, no case of conjoint bicondylar Hoffa fracture has been reported in the literature. The presented case was successfully treated by arthroscopically assisted internal fixation

Methodology of calculation of construction and hydrodynamic parameters of a foam layer apparatus for mass-transfer processes

Промислова реалізація методу стабілізації газорідинного шару дозволяє значно розширити галузь застосування пінних апаратів і відкриває нові можливості інтенсифікації технологічних процесів з одночасним створенням маловідходних технологій. У статті встановлені основні параметри, що впливають на гідродинаміку пінних апаратів, розглянуті основні конструкції та режими роботи пінних апаратів. Виявлено зв'язок гідродинамічних параметрів. Розглянуто гідродинамічні закономірності пінного шару. Вказані фактори, що впливають на процес масообміну, як в газовій, так і в рідкій фазах. Проведений аналіз ряду досліджень показав, що перспективним напрямком інтенсифікації процесу масообміну є розробка апаратів з трифазним псевдозрідженим шаром зрошуваної насадки складних форм із сітчастих матеріалів. Отже, необхідне проведення спеціальних досліджень гідродинамічних режимів роботи апарату з сітчастою насадкою і визначенням параметрів, що впливають на швидкість переходу насадки з одного режиму в інший.Industrial implementation of the stabilization method of the gas-liquid layer can significantly expand the field of use of foaming apparatus and opens up new opportunities for intensifying technological processes with the simultaneous creation of low-waste technologies. The article establishes the basic parameters influencing the hydrodynamics of foam apparatus, considers the basic constructions and operating modes of foam apparatus. The connection of hydrodynamic parameters is revealed. The hydrodynamic laws of the foam layer are considered. The indicated factors affecting the process of mass transfer, both in the gas and in the liquid phases. The conducted analysis of a number of studies showed that the perspective direction of intensification of the mass transfer process is the development of apparatuses with a three-phase fluidized bed of an irrigated nozzle of complex forms with mesh materials