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16:43 IWF (Göttingen) German 1994

Cell Division in the Diatom Surirella

Edition: Robert Lauterborn, the first observer of chromosomal movement in the living cell, published in his book "Bau, Kernteilung und Bewegung von Diatomeen", Leipzig 1896, his observations of cell division in Surirella which fell into oblivion. Jeremy Pickett-Heaps fully confirmed his observations using shots from interference contrast microscopy and electron microscopy. He adds new findings about shell formation, partly with time lapse.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
17:53 IWF (Göttingen) English 1994

Experiments on Single Ventricular Myocytes

The central topic is the modification of the respective action potentials or ion flows of isolated myocards under various experimental conditions. The following issues are considered: the patch-clamp and voltage-clamp techniques (animation); origination of the action potential (animation); the effects of cadmium and adrenaline (action potentials, ion flows, optical cinemicrography); the interpendency between action potential and stimulation frequency or the absolute and relative refractory period, respectively (with simultaneous display of cinemicrographs and action potentials).
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: English
17:41 IWF (Göttingen) German 1994

Experimente an isolierten Zellen des Ventrikelmyokards

Zentrales Thema sind die Veränderungen der Aktionspotentiale bzw. der Ionenströme von isolierten Herzzellen unter verschiedenen experimentellen Bedingungen. Im einzelnen werden behandelt: das Patch-Clamp- und Voltage-Clamp-Verfahren (Trick), die Entstehung des Aktionspotentials (Trick), die Wirkung von Cadmium und Adrenalin (Aktionspotentiale, Ionenströme, lichtmikroskopische Aufnahmen), die Abhängigkeit der Aktionspotentiale von der Stimulationsfrequenz bzw. der absoluten und relativen Refraktärzeit (gleichzeitige Darstellung von lichtmikroskopischen Aufnahmen und Aktionspotentialen).
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
16:48 IWF (Göttingen) English 1994

Flower-Ecological Relationships between Bumblebees and their Nectar Flow Plants

The relationships between bees and flowers are various, however the goal is the same, nutrition in return for pollination. Pollen and/or nectar is readily available in blossoms without perianthers (willow) and several blossoms with radial symmetry (gooseberry, apple, roses and many Compositae). In more complex radial symmetric blossoms (iris) and the majority of zygomorphic blossoms (clover, lupin, nettle, snapdragon, monkshood) demands are made on insects in terms of proboscis length, body weight, stamina and strength.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection Gesellschaft für den Kulturwissenschaftlichen Film (Göttingen) German 1994

Wo noch der Herrgott gilt ... - Katholisch sein im Eichsfeld

To live in the Eichsfeld region means to be Catholic, this junction was beyond doubt even in the upper Eichsfeld region which belonged to the former GDR. The film introduces family Beck living in religious traditions and their morals and values.
  • Published: 1994
  • Publisher: Gesellschaft für den Kulturwissenschaftlichen Film (Göttingen)
  • Language: German
08:20 IWF (Göttingen) German 1994

Nematodenbefall durch Zoosporen von Catenaria anguillulae

Der Chytridiomyzet ist ein Endoparasit von Nematoden; er lebt im Boden und befällt seine Wirtsorganismen als Zoospore. Bereits geschlüpfte Nematoden erreicht er auf chemotaktischem Weg. Nematodeneier findet er eher zufällig auf. Hat eine Spore allerdings die Eihülle durchstoßen, so werden weitere Infektionssporen chemotaktisch angelockt. Die Zytologie der Sporen und der Enzystierungsvorgang vor dem Auskeimen wurden unter dem Lichtmikroskop gefilmt, Details werden an elektronenmikroskopischen Aufnahmen gezeigt. Der gesamte Infektionsvorgang, die Differenzierung von Sporangien und die Entlassung von Zoosporen werden in Zeitraffung dokumentiert.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
08:09 IWF (Göttingen) German 1994

Nematodenbefall durch Konidien von Drechmeria coniospora

Konidiosporen des endoparasitischen Pilzes Drechmeria coniospora heften sich spezifisch an chemosensorische Organe von Nematoden. Vom chemosensorischen Organ ausgehend, wachsen Verdauungshyphen in das Wirtstier ein. Der Infektionsvorgang erfolgt in mehreren Phasen, wie anhand von elektronenmikroskopischen Aufnahmen gezeigt wird. Zeitgeraffte Aufnahmen dokumentieren, wie die Infektion voranschreitet, im späten Stadium Konidiophoren die Wirtskutikula nach außen durchbrechen und neue Sporen abschnüren.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection Gesellschaft für den Kulturwissenschaftlichen Film (Göttingen) German 1994

Wo noch der Herrgott gilt - Beobachtungen im Eichsfeld

Exemplary documentation of a family in the Eichsfeld region and their bond to tradition and Catholizism. It is a short version of film W 2204 produced for TV.
  • Published: 1994
  • Publisher: Gesellschaft für den Kulturwissenschaftlichen Film (Göttingen)
  • Language: German
02:35 IWF (Göttingen) Silent film 1994

Pityogenes chalcographus (Ipidae) - Entwicklung des Brutsystems

A female six-toothed spruce bark-beetle, attracted by the bore meal crumbs (frass) containing pheromones, finds a male's borehole and crawls into it. Six females each gnaw a central gallery, the hatched larvae chew larval galleries perpendicular to the central gallery. Pupation and emergence of the young beetles follow. (Time-lapse photography). The juvenile beetles gnaw a hole outwards through the bark and fly away.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
07:04 IWF (Göttingen) Silent film 1994

Periophthalmus spec. (Gobiidae) - Fortbewegung und Nahrungsaufnahme an Land

Mudskippers. The pectoral fins, which are arm-like, and the funnel-shaped pelvic fins alternate in their movements. While the body is resting on the pelvic fins, the pectoral fins slew forwards in preparation for the next step. Skipping occurs with the aid of the caudal peduncle which is bent anteriorly. Snapping at live and dead prey, feeding. With high-speed photography.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
08:01 IWF (Göttingen) Silent film 1994

Leuckartiara octona (Hydrozoa) - Medusenknospung

The medusas bud on stolons of the polyp generation and on the hydrocaulus of the polyps. In rapid time-lapse, the growth and differentiation of the medusa buds up to medusa liberation is shown.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) Silent film 1994

Natrix natrix (Colubridae) - Eiablage und Schlüpfen der Jungen

Ring snake: finding a place for oviposition, laying eggs, hatching: juveniles cutting with the egg tooth, leaving the egg.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
04:09 IWF (Göttingen) Silent film 1994

Rana temporaria (Ranidae) - Furchung und Embryonalentwicklung

Common frog. Cleavages up to the blastula stage. Gastrulation, neurulation. Time-lapse photography.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
25:19 IWF (Göttingen) German 1994

Mitteleuropa, Schleswig - Malen eines Schrankes mit Eichenholzmaserung

A small old wall-cabinet gets a new painting imitating oak-grain. Five coats of paint have to be applied: first and second ground coat, oilglaze, water-glaze and clear varnish. Both glazes are treated with several veining-utensils in order obtain an oakwoodgrain effect.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
05:16 IWF (Göttingen) German 1994

Mitteleuropa, Schleswig - Vierspänniges Pflügen

Two teams of horses are put to an iron plough, the driver is riding on the rear saddle-horse, the ploughman is guiding the plough. The film shows the technique of "ploughing apart" on an a piece of marsh-ploughland about 16 m wide and appr. 200 m long in the Holstein Elb-marshes.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
1:27:21 IWF (Göttingen) German 1994

Glazial-geomorphologische Expedition in die Karakorum-Nordseite 1986

Geowissenschaftliche Untersuchungen (geomorphologisch, glaziologisch, klimatologisch, vegetationskundlich) am Westrand des Tibetischen Plateaus zwischen Tarim-Becken und Karakorum-Hauptkamm: Wüste Taklamakan, Kuenlun, Aghil-Gebirge, Karakorum-Nordseite - erste Detailforschungen nördlich des K2. Es wird der in unzugänglichem Hochgebirge schwierige Expeditionsablauf vom Anmarsch mit einer Kamelkarawane bis zur Einrichtung von Hochlagern und Meßstationen in der Gletscherregion gezeigt. (Vgl. Film C 2017)
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
1:27:42 IWF (Göttingen) English 1994

Glacial Geomorphological Expedition to the Karakorum North Flank, 1986

Geoscientific investigations (geomorphological, glaciological, climatological, phytosociological) on the western scarp of the Tibetan plateau between the Tarim basin and the main ridge of the Karakorum: the Takla Makan desert, Kunlun, Aghil Mountains, Karakorum north slopes - first detailed studies to the north of the K2. Documentation of the strenuous course of the expedition in the inaccessible mountain terrain, from the approach by camel caravan up to the establishment of camps and survey stations in the glacial region. (See film C 2017)
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: English
14:52 IWF (Göttingen) Silent film 1994

Equus caballus (Equidae) - Geburt im Herdenverband

Camargue horse. The mare remains with the herd while foaling. The birth occurs while lying, interrupted by several changes of location. Release of amniotic fluid, dilation phase, expulsion phase, contact with members of the herd, foal's attempt to stand, mother-child behaviour.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) German 1994

Trommelbau Yoruba, Nigeria

Making dùndún- and bàtá drums. Making the tension cords and membrane. Mounting and stretching the skin. The various stages in making a dùndún is shown in graphics. Both drums are played in orchestra.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
21:17 IWF (Göttingen) German 1994

Molekularbiologische Analyse alter DNA

The film serves for instruction purposes at universities, museum, or similar institutions. Molecular sex diagnosis is taken as an example for the analysis of DNA from degraded biological source materials. DNA extraction technique, polymerase chain reaction, and sequence analysis are demonstrated. Paleontological, archaeological, museum, and forensic specimens are introduced as well as the perspectives resulting from their DNA analysis in the fields of biology, medicine and environmental engineering.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
08:21 IWF (Göttingen) English 1994

Infection of Nematodes by Zoospores of Catenaria anguillulae

This chytridiomycete is an endoparasite of nematodes living in the soil. It attacks its victims by means of zoospores; they move chemotactically to the body orifices of nematodes while they appear to reach nematode eggs by chance. Once a spore has penetrated the egg shell, further infective spores are lured chemotactically to the penetration site. The cytology of the spores and the process of encystment has been filmed in the light microscope. Details are shown by means of scanning electronmicrographs. Time-lapse sequences show the entire infection process, the differentiation of sporangia and the release of zoospores.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: English
08:09 IWF (Göttingen) English 1994

Infection of Nematodes by Conidiospores of Drechmeria coniospora

Conidiospores of the endoparasitic fungus Drechmeria coniospora attach exclusively to chemosensory organs of nematodes. Starting from the chemosensory organ trophic hyphae penetrate the victim. The infection process proceeds in serveral phases as shown by means of electron microscopy. Time-lapse sequences document the series of events of the infection process, the outgrowth of conidiophores through the host's cuticle, and the release of new spores.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: English
32:34 IWF (Göttingen) Silent film 1994

Mitteleuropa, Bayern - Herstellen von Bergkäse im Allgäu

In an Alpine hut milk is heated in a kettle above an open fire and made to curdle by adding rennin and cultures. The cheese mass that is thus formed is filled into a mould and pressed for approximately 24 hours. Before the cheese is placed in a saline bath, it is stored for approximately 12 hours in a cellar.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
09:31 IWF (Göttingen) Silent film 1994

Mitteleuropa, Bayern - Herstellen von Butter im Allgäu

In an Alpine hut, the Alpine dairyman pours cream into the barrel-shaped butter churn. The butter churn is driven electromechanically and rotates around a horizontal central axle. The finished butter is kneaded in clear water, form with a wooden butter mould and packed in paper.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) Silent film 1994

Der Bildhauer Ernesto de Fiori, Berlin ca. 1925

Presentation of a finished bust of the US boxer Dempsey - Creation of a female figure (clay) Bending the frame into the proper shape, applying the clay mass, putting on the head, smoothing the surface, modelling the face (modelling knife), attaching the arms, presenting the finished work.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) Silent film 1994

Edwin Scharff, Berlin ca. 1925

Presentation of a male torso and a bust of the art historian Heinrich Wölfflin - Edwin Scharff models his wife's head in clay, structure on a framework, basic shape of the head, modelling the face with his bare hands.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) Silent film 1994

MOPP (Max Oppenheimer), Berlin 1926

Max Oppenheimer in his atelier - Emergence of a portrait of the author Heinrich Mann (charcoal) - Heinrich Mann poses for him.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) German 1994

Karo-Batak (Indonesien, Nordsumatra) - Die Zeremonie »Njujungi beras piher«

The ceremony (literally translated: 'to put rice on the head') is performed at a person's returning to a community. Mrs. Ginting, returning from hospital, is received by her relatives on the border of the village. Blessings are pronounced and she and her husband are decorated with gold jewellery and ceremonial cloths. Accompanied by gendang music, they are conducted to the family's house. The guru sibaso attract with white cloths the vital power (tendi) to strengthen the woman. Adat dances are performed on the dancing-ground. A common meal concludes the ceremonial part of the feast.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1994

Karo-Batak (Indonesien, Nordsumatra) - Tänze anläßlich einer Haarwaschzeremonie in Kuta Mbelin

The participants of the hair-washing-ceremony arrive in the house. The first dance is performed to invite the protective and the ancestral spirits to take part in the feast. A dance with invocation of the spirits takes place, followed by the meal. Adat dances and further dances with invocation of the spirits are performed. An oracle with a hard-boiled egg is consulted, followed by entertainment dances. The dances are accompanied by a gendang music group.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
34:14 IWF (Göttingen) German 1994

Der Hahn ist tot - Hahneköppen in Haan

Rooster decapitation on the first monday is a feature of the annual Haaner Kirmes (circus in Haan). The dead rooster is hung feet-upwards over a basket. Blindfolded contestants are given a blunt sword and urged on by the crowd.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
05:17 IWF (Göttingen) German 1994

Pocillopora damicornis (Anthozoa) - Entwicklung der Kolonie aus der Planula

The initially astomous, ciliated planula larva swims with its aboral pol, the one with which it anchors itself after a few days, forward. The distribution of the zooxantellae mark the mouth and the primordia of the 6 primary gastral septa. The basal disc begins with the deposition of the calcium skeleton, which initially has 6, then 12 and ultimately 24 sclerosepta. The polyp tentacles are concurrently formed. After approximately 20 days the primary polyp has enlarged the basal disc and formed daughter polyps by means of extratentacular budding. In this manner, large, upright colonies consisting of hundreds of polyps develop in the course of several years.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1994

Purhépecha (Michoacán, Mexiko) - Gaban-Weberei in Nahuatzen

A Gabial (poncho/scarf) for a child is being made. Juana Nunez Balverde washes and cleans the wool and her husband José Sanchez Vera combs it. Juana spins the wool whilst José prepares the warp. The Gaban is woven on a treadle-loom. The stitched pattern is made by José Sanchez Nunez, José son, together with Juana. Finally Juana washes and knots the fringe.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
10:58 IWF (Göttingen) Silent film 1994

Toxotes spec. (Toxotidae) - Beuteschießen

Juvenile archerfish spit a jet of water at their prey, which are located up to approximately 30 cm above the water's surface. Falling flies are eaten. If the prey is not hit or does not fall on the water, the spitting process is repeated several times. The archerfish also attempt to catch insects while jumping out of the water. With slow motion photography.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
04:24 IWF (Göttingen) Silent film 1994

Amphiporus lactifloreus (Nemertini) - Schlüpfen der Nemertine aus der Larve

Locomotion of the pilidium larva with young nemertine inside, peristaltic stretch movements. Hatching of the nemertine and decomposition of the larval parts, young nemertine with ciliary movement.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: Silent film
44:55 IWF (Göttingen) German 1994

Heidschnucken-Schäferei

A shepherd's work is documented, beginning in spring. Sheering the herd, lamming, shearing, ram auction. Shepherd comments on conditions and his dog.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
40:49 IWF (Göttingen) German 1994

Mitteleuropa, Schleswig - Bohren eines Eichenstammes für eine Pumpe

Boring of an oak-trunk to be used as a pump. A high oaktree is felled, cut to length, loaded on a wagon by means of a lever-chest and taken to the cartwrights-yard. The 5 m long trunk is trimmed octogonal with axe and broad-axe and then bored lengthwise by a handdriven boringdevice (machine), which runs forth and back on a guideway. Boring starts from one end to about half the length of the trunk, then from the other end, until both boreholes meet. Finally the upper two metres of the trunk are rebored for the pumppiston.
  • Published: 1994
  • Publisher: IWF (Göttingen)
  • Language: German
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