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11:02 IWF (Göttingen) English 1980

Stage Specific Protoplasm Streaming in the Stalk of Acetabularia mediterranea

The formation of intracellular transport systems in the course of cell differentiation. A network of cytoplasmic filaments transports chloroplasts, a system of wider cytoplasmic bands moves cell inclusions and generative nuclei. The cytoplasmic bands follow along the filaments and are faster than the movement of the chloroplasts. With time-lapse.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
11:05 IWF (Göttingen) English 1980

Effect of Cytochalasin B and Anti-Microtubule Inhibitors on Protoplasmic Streaming in Acetabularia mediterranea

All intracellular movements are reversibly inhibitedby the anti-microfilament agent cytochalasin B. The microtubule inhibitors colchicine, chlorisopropyl-N-phenyl-carbamate (CIPC), amiprophosmethyl (APM) reversibly inhibit nuclear migration and have no influence on chloroplast movement. With time-lapse.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) Silent film 1980

Saprospira grandis (Leucotrichales) - Wachstum und Bewegung

The multicellular, screw-shaped filaments move by gliding, the srews rotating at the same time around their long axis. When Saprospira grows under spatial confinement, it forms long uncoiled filaments, which are no longer able to glide. However, as small particles that stick to the surface of the filaments still travel back and forth along the filaments, the machinery for movement must still be partially intact. Within the colony the bacterial filaments tend to align parallel to one another, with the screws exactly "in phase". The colony thus acquires a regular pattern of stripes.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) Silent film 1980

Herpetosiphon giganteus (Leucotrichales) - Wachstum und Bewegung

Multicellular filaments glide across an agar surface. They leave mucus traces behind. Lucid translucent pieces in some filaments are "necrotic bodies" (dead and empty cells). As a result of its gliding, the colony (swarm) spreads rapidly. Filaments can gather and form a ball at arbitrary locations in the swarm.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Silent film
Offline Collection IWF (Göttingen) German 1980

Signalverhalten und Signalstrukturen

Illustration of a number of basic semiological terms (action, structure specific and combined signal systems) of biocommunication using the courtship of birds of paradise and bower birds as examples. It was also possible to document several hypotheses pertaining to the evolution of bower construction.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Balzverhalten von Paradiesvögeln

The DVD contains the IWF films: E 285 "Paradisaea rubra (Paradisaeidae) - Solo Courtship"; E 1061 "Paradisaea raggiana (Paradisaeidae) - Courtship and Copulation"; E 1062 "Paradisaea rudolphi (Paradisaeidae) - Courtship"; E 2482 "Paradisaea minor (Paradisaeidae) - Courtship and Copulation (Open Air Shots)"; E 2483 "Paradisaea apoda novaeguineae (Paradisaeidae) - Courtship and Copulation (Open Air Shots)" and D 1339 "Signal Actions and Signal Structures".
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Supraleiter - Zwischenzustand in massiven Bleiproben vom Typ I bei Veränderung des angelegten Magnetfeldes - Bereichsstrukturen oberhalb der kritischen Dicke (d[s] = 120 µm)

During the increase of an external magnetic field the typical domain structures of bulk lead samples above the critical thickness change at the threshold of superconductivity through the intermediate state into the normal conducting state at a constant temperature of 4,2 K.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
11:02 IWF (Göttingen) German 1980

Stadienspezifische Protoplasmaströmung im Stiel von Acetabularia mediterranea

Bildung intrazellulärer Transportsysteme im Verlauf der Zelldifferenzierung. Ein Netz dünner Plasmafäden transportiert Chloroplasten, ein System breiter Plasmabänder Inhaltskörper und Fortpflanzungskerne. Die Plasmabänder gleiten an den Plasmafäden entlang und sind schneller als diese.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Zellbiologische Studien an Physarum polycephalum - Bewegung und Reizverhalten von Plasmodien

Slime mould. Directed movement on the substrate, shuttle streaming of the protoplasm, sensitivity to touch, chemotaxis (glucose, acetic acid).
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Zellbiologische Studien an Physarum polycephalum - Zellerkennung

Plasmodial slime mould. Mutual recognition among cells can readily be observed in the fusion behaviour of genetically identical and heterogeneous plasmodia and amoebae as well as in the reactions of plasmodia to amoebae and micro-cysts.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Zellbiologische Studien an Physarum polycephalum - Genetische Regulation von Differenzierungen

Slime mould. Formation of a diploid amoeba following fusion of haploid amoebae (fusion of nuclei in the prophase); formation of diploid plasmodia after fusion of haploid amoebae (fusion of nuclei in the interphase); direct transformation of haploid amoebae into haploid plasmodia. The processes of cell fusion, fusion of nuclei and the prevention of cell division are regulated by two specific genes. With animated sequences. (Compare film B 1337).
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
11:04 IWF (Göttingen) German 1980

Wirkung von Cytochalasin B und Anti-Mikrotubuli-Stoffen auf die Plasmaströmung von Acetabularia mediterranea

Alle intrazellulären Bewegungen werden durch die Anti-Mikrofilamentsubstanz Cytochalasin B reversibel gehemmt. Die Anti-Mikrotubulisubstanzen Colchicin, Chlorisopropyl-N-phenyl-carbamat, Amiprophosmethyl hemmen die Kernmigration reversibel und beeinflussen die Chloroplastenbewegung nicht. Mit Zeitraffung.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
13:06 IWF (Göttingen) German 1980

Strukturveränderungen des Primärkerns und Kernteilungen bei Acetabularia cliftonii

Die karyologischen Untersuchungen umfassen: Heranwachsen des Primärkerns zum Riesenkern, Tätigkeit der Nukleolarvakuolen, Primärkernteilung mit Bildung einer intranukleären Spindel, Sekundärkernteilung und -wanderung, Kernteilung in der Zyste. Die mikrokinematographischen Aufnahmen sind trickmäßig den Entwicklungsstadien der Alge zugeordnet. Zeitraffung, Phasen- und Interferenzkontrast.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
05:38 IWF (Göttingen) German 1980

Einfluß der Seewindzirkulation auf das horizontale Windvektorfeld - Numerische Simulation

Following the introduction into the geographic position of southern Florida and the layer composition of the simulation model computer calculated wind vector fields for the 50-m-layer show the influence of the large scale flow, the coast form, the landscape form and the superimposition of the occuring time and space dependent sea breeze convergencies and divergencies.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
05:55 IWF (Göttingen) German 1980

Cirrusschirme bei Gewittern

Convection during thunderstorms caused by heat leads to an ascension of the clouds with the formation of a cirrus shield, an overshooting top; ambos forms result from wind shearing. Explanations in an animated movie and an extensive interpretation of characteristic time-lapse shots made by geostationary weather satellites in the visible and infrared light spectra.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
06:03 IWF (Göttingen) German 1980

Vertikale Bewegungsfelder in der Seewindzirkulation - Numerische Simulation

Computer calculated wind vector fields show changes of the vertical motions over southern Florida within the sea breeze circulation. The colouring hints the formation of clouds and simplifies interpretation. The relation to the horizontal motions is explained at large.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
05:30 IWF (Göttingen) German 1980

Herstellung einer Reinkultur am Beispiel von Escherichia coli

Demonstration of a microbiological method. Beginning with non-purified waste water from a sewage treatment plant, a pure culture of E. coli bacteria is prepared subsequent to a twofold streak plate procedure with the aid of optical controls and using a selective indicator culture medium (EMB agar). A stem culture is established on agar slant.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Zellbiologische Studien an Physarum polycephalum - Zwei Erscheinungsformen mit gleichem Erbgut

Slime mould. Amoebae and plasmodia behave differently during nuclear and cell division, in liquids and during nutrient uptake. With animated graphics.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Zellbiologische Studien an Physarum polycephalum - Morphogenese der Dauerformen

Slime mould. Depending on the surrounding conditions amoebae change into cysts, plasmodia into sclerotia, changing back into their previous form, also plasmodia developing into sporangia and spores. With animated graphics.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
08:58 IWF (Göttingen) German 1980

Bestimmung der Zellzahl in einer Kultur am Beispiel von Escherichia coli

Demonstration of microbiological methods. 1. Microscopic determination of the total cell number of a fully developed culture with a counting chamber. 2. Determination of the vital cell number by counting bacterial colonies on agar plates. Calculation of the numerical values.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
Offline Collection IWF (Göttingen) German 1980

Aspekte des Kinderspiels - I. Spiel und Entwicklung

Using the theories of development psychology (Bühler, Eichler, Krappmann) the relationship between attitudes towards play and development of the child is shown between the 1st to 12th years of age. Play scenes and trick photography display the main points of development.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
03:22 IWF (Göttingen) Silent film 1980

Aconitum carmichaelii (Ranunculaceae) - Pollination durch Apis mellifera

In this film an interesting event of floral biology is demonstrated with regard to the flower of Monk's Hood, Aconitum carmichaelii Debeaux, var. wilsonii (Stapf ex Mottet) Munz, a chinese species which is sometimes cultivated as an ornamental plant in our gardens.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Silent film
06:40 IWF (Göttingen) Silent film 1980

Metamorphose aberranter Formen beim Seeigel (Psammechinus miliaris)

Some echinoplutei do not develop the sea urchin disc (=oral part) on the left side of the larva, as in the majority of cases, but on the right. Also there are some which develop a sea urchin disc both right and left and finally some which have non at all. The film shows the development and metamorphosis of these three mutant developments.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Silent film
16:37 IWF (Göttingen) German 1980

Sexuelle Prägung bei Enten

Isolierte Aufzucht von Küken verschiedener Entenarten, Folgen der Aufzucht mit artfremdem Partner, Auswirkung sexueller Prägung bei Erpel und Ente, einseitige Verpaarung, Wahlversuche unter kontrollierten Bedingungen, geprägt reagierende Weibchen, auf Gänse geprägte Erpel, auf Hühner geprägter Erpel.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
14:58 IWF (Göttingen) German 1980

Fortpflanzung bei Egeln (Hirudinea)

The film contains characteristic scenes of the reproduction biology of three well-konwon European leeches. First transfer of spermatophores, than formation and deposition of a cocoon with eggs is shown in Erpobdella octoculata. Likewise in Piscicola geometra, copulation with exchange of spermatophores and cocoon deposition were filmed. In Theromyzon tessulatum direct sperm transfer through the female genital pore is preceded by an extensive courtship display. This leech places its body over the cocoons; the juveniles, after hatching, are then sheltered by holding on to the ventral side of the parent.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
20:10 IWF (Göttingen) German 1980

Doppelschraubendampfer "Welle", Bremerhaven, 186 BRT, Baujahr 1915 - Tägliche Inbetriebnahme und Auslaufmanöver

This ship owned by the waterways and shipping department Bremerhaven is shown on its last trips to make bearings on the Aussenweser before laying up. After lay-days, the two triple expansion steam engines (reverse according to Stephenson) with a capacity of each 220 kW (300 H.P.) and the pertinent ancillary machines are made ready for operations during run-up of the coal fired flame tube boiler. The auxiliary drive and the steering gear are also steam driven. Then the ship leaves the Geestevorhafen in Bremerhaven. Based on commands from the bridge to the engine room, given via machine telegraph, the engine room staff carry out the machine manoeuvre. The film shows primarily the work of the machinist and the stokers. The film closes with shots of the boat at work.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
41:54 IWF (Göttingen) Silent film 1980

Mitteleuropa, Holstein - Herstellen eines Weinfasses

The film shows the principal stages in making a fifty-litre wine cask: Preparing and arranging the staves, heating and binding together the staves, cutting the groove, making and putting the heads into place, hooping, and cleaning the finished cask.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Silent film
15:17 IWF (Göttingen) English 1980

Solitons

A mechanical model for soliton, antisoliton and breather is presented as a solution of the Sinus-Gordon equation. Collision and penetration of solitons, antisolitons and breathers. Break down of a pulse into soliton and antisoliton. The Lorentz-contraction for fast solitons. Dispersion for small angles of torsion (rotation). The phases are drawn by a computer.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
15:17 IWF (Göttingen) German 1980

Solitonen

Mechanisches Modell für Soliton, Antisoliton und Atmer als Lösung der Sinus-Gordon-Gleichung. Zusammenstoß und Durchdringung von Solitonen, Antisolitonen und Atmern. Zerbrechen eines Pulses in Soliton und Antisoliton. Lorentz-Kontraktion bei schnellen Solitonen. Dispersion bei kleinem Verdrehungswinkel. Computergezeichnete Phasen.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
17:59 IWF (Göttingen) English 1980

Feeding Ecology in Bush- and Rockhyraxes - Living Sympatrically

On large granite outcrops (kopjes) in the Serengeti Plains, there is no direct competition for food between the primarily grass-eating rock hyrax (Procavia johnstoni) and the leaf-eating bush hyrax (Heterohyrax brucei). On small kopjes in the dry season, direct competition takes place.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
23:59 IWF (Göttingen) English 1980

Ethology in Bush- and Rockhyrax

Comparison of the bush and rock hyrax (Heterohyrax brucei and Procavia johnstoni, Procaviidae) with respect to mating, eating, comfort behaviour, calls, climbing and playing of young animals. Open air shots.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
11:59 IWF (Göttingen) German 1980

Werkzeuggebrauch und einsichtiges Handeln eines Orang-Utans

Pongo pygmaeus. Der Orang-Utan Buschi hat gelernt, verschiedene Werkzeuge zu benutzen. In Spontanversuchen erlernt er den Gebrauch neuer Werkzeuge, bei Wahlversuchen beweist er seine Fähigkeit zu einsichtigem Handeln.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
12:00 IWF (Göttingen) English 1980

Tool Using and Insight-learning in an Orangutan

Pongo pygmaeus. The orang-utan Buschi has learned to use different tools. In extemporaneous trials he learns the use of new tools; in choice trials he proves his ability to behave insightfully.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: English
Offline Collection IWF (Göttingen) Original sound, no spoken text 1980

Sawos (Neuguinea, Mittlerer Sepik) - Einsammeln von Larven des "Sagokäfers"

In the swamp forest two girls collect grubs from a felled sago palm after removing the bark with an ax and then picking up the insects from the rotten wood. One girl eats a grub and finally wraps the rest into long leaves for transport.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: Original sound, no spoken text
23:25 IWF (Göttingen) German 1980

Ethologie von Busch- und Klippschliefer

Comparison of the bush and rock hyrax (Heterohyrax brucei and Procavia johnstoni, Procaviidae) with respect to mating, eating, comfort behaviour, calls, climbing and playing of young animals. Open air shots.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
09:04 IWF (Göttingen) German 1980

Verformung von Partikelformationen unter Seewindbedingungen - Numerische Simulation

Computer calculated wind vector fields show different particle formations and their changes under the influence of large-range sea breezes from different directions over Florida.
  • Published: 1980
  • Publisher: IWF (Göttingen)
  • Language: German
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